The Utah VHF Society
Coordination Transactions Register
and other items of
For notes concerning the format and content
of this page, see below.
- UVHFS: September - A trip was
made to the Navajo Mountain site to install UHF gear to allow
linking of the Intertie to the Arizona Repeater Association
(ARA) system. The availability of this link is at the
discretion of the ARA.
- UVHFS: August - A visit was
made to Hidden Peak (a.k.a. "Snowbird") to determine the cause
of apparent desense of the 147.180 repeater. While some
desense was initially detected, it seemed that disturbing the
coax connections to insert the test equipment caused it to disappear
indicating the possibility that a nonlinear junction had
formed at or near that connector junction. A visit was
also made to Scott's Hill during the month to replace some of
the backup batteries and to make a minor repair on the 145.270
transmitter to restore its proper power output.
- UVHFS: August - Work has been
done at Farnsworth Peak to improve the coverage and
performance of both the 147.120 and 146.940 repeaters.
The antenna that had been used for the 146.940 repeater was
moved to a location near the top of the tower and a new
feedline run. When tested, however, it was discovered
that there appears to be a significant amount of
"re-radiation" from some loose hardware on the tower causing
intermittent/severe degradation of both the 146.940 and
147.120 repeaters - a problem that has apparently been present
for quite a while, but undiagnosed. While some
mitigation of this problem has already been carried out (e.g.
securing of some of the loose hardware) additional work
remains to be completed. To minimize these problems, the
output power of the 147.120 repeater has been significantly
- UVHFS: 2/13 - the Utah VHF
Society held its annual Swap Meet and election meeting in
Farmington, Utah at the Legacy Events Center. Among the
items acted upon:
- The 147.120 repeater on Farnsworth Peak
was voted to become aligned with the Utah VHF Society.
- By acclamation, the officers of the Utah
VHF Society were re-elected in the absence of any
nominations for any of the open positions.
- For those UVHFS members who could not be
present at the Utah VHF Society swap meet, please contact Mel Parkes, the Utah VHF
Society president - link, to obtain
your copy of the 2013 booklet.
- D-Star Farnsworth: It has been reported by users that the
D-Star stack on Farnsworth Peak is working properly and
routing voice packets on the internet as it should. It
is believed that the two 23 cm ports of the stack (the DV -
Digital voice and the DD - 128k data) are also working, but
since relatively few people have equipment for that
frequency/mode, this has not been positively verified. If
you have an Icom ID-1 or equivalent and can test/use the
23cm voice and data ports, please let John Lloyd, K7JL,
know whether or not these ports are properly working.
- FCC: It should be noted that
in the past several years, the FAA has been replacing their
decades-old, very high-power RADAR systems with more modern,
much more sensitive low-power systems. Because of this,
the new systems are much more sensitive to possible
interference due to amateur operation in the 23cm band and
being a secondary user, requiring some amateur users
to either QSY (change frequency) or shut down operations
entirely. The UVHFS must keep a close eye on this and
work with the ARRL and FAA as necessary.
- D-Star Farnsworth: 11/2.
On another trip the UPS was returned with new batteries.
Because of suspected problems, all of the radios except the
70cm DV module were brought down for bench
analysis. Later analysis on the workbench revealed that
there had been some calibration/programming problems related
to the 23cm DV and DD radios while the 2 meter radio was
properly functional, but likely being impacted by on-site
interference. Later, the radios were re-installed and as
far as can be determined are still operating properly.
For a time, internet linking of the D-Star stack was restored,
but during the month some of the previously-opened ports got
blocked and internet linking is no longer possible: This
issue will (again) be worked out with the site's network
- D-Star Farnsworth:
11/12. K7JL and KD7BAY went to Farnsworth Peak to
determine why the D-Star stack was not functioning
properly. One of the main problems was that with a
change in administration, IP port blocking had restricted
access such that internet linking of the D-Star stack was not
possible. In addition to desense, it was discovered that
the UPS had bad batteries. and it was brought down.
Analysis determined which ports were the issue and this would
be worked out with the network administrators.
- Levan Peak Intertie:
10/12. K7JL and KB7YAF went to Levan Peak to put it and
its links back on the air.
- The north UHF link (to Farnsworth) had a
blown section on its transmitter and an intermittent short
was discovered on one of its internall supply rails - a
problem not directly related to the transmitter issue.
- On the south link it was noted that the
transmitter power was not getting to the antenna through the
T/R relay, so this was removed as it was not needed for this
application. VSWR tests and a visual inspection
revealed damage to the south UHF link antenna which should
be replaced on the next visit, but there was ample link
- On the 145.270 side, the transmitter was
only producing 4 watts, but this was determined to be a
flaky power control adjustment.
- Hidden Peak (a.k.a. "Snowbird):
10/12. The "temporary" antenna installed at Hidden Peak
in March was replaced by K7JL and crew with one similar to
that which had been broken in the 125+ MPH wind. This
restored the repeater to its original performance.
- UVHFS: 5/12. Due to site
coordination issues, the repeaters that had been installed at
Bacchus/Rushton would be moved to the Salt Lake Community
College. The affected repeaters are the 146.880, 223.940
and 449.900 and these were moved by KD0J and crew.
- Hidden Peak
(a.k.a. "Snowbird): 3/12. The
Hidden Peak (a.k.a. "Snowbird") repeater went (mostly) offline
on 3/21 when a 125+ MPH wind event broke the VHF antenna at
its base: Their windspeed indicator was pegged at 125
MPH during this event so the actual wind velocity was
unknown. The Snowbird personnel lashed the antenna using
a rope to get it out of the tram equipment and prevent further
damage. On 3/23, K7JL and his son, KD7BAY, along with
KB7YAF went up there with a new (but smaller) antenna and put
it back on the air, albeit with somewhat reduced
performance. Other minor repairs were made to the
controller/interface to remedy minor issues that had cropped
up in the months before. The folks as Snowbird were very
helpful in taking care of this situation and provided
assistance in taking down the old and putting the new antenna.
- D-Star IMC: 3/12. It was
reported that the D-Star stack at the IMC was now
operational. See the 11/11 listing.
- UVHFS: 1/12. The status
of the 447.225 repeater has again been checked. N7TDT
replied that he still has plans to get this repeater on the
- D-Star IMC: 11/11.
Coordination has been granted to ARES for a D-Star stack of
three voice repeaters to be located atop IHC's IMC, the
frequencies being 145.150, 447.950 and 1298.750.
- 146.940 Farnsworth:
10/11. K7JL went to Farnsworth Peak to determine why the
146.940 repeater was performing poorly. After several
hours of investigation, no definitive cause could be found but
the replacement of the old antenna improved things very
slightly - but the repeater was still mostly unusable to all
but mobiles when 147.120 keyed up. Not directly
responsible for the desense, there is something else on site
that is re-radiating the 147.120 signal and causing the
degradation of the receiver on the 146.940 repeater.
Investigation will have to continue at a later date.
Since this is a prime repeater location at a site with
emergency power, it has been suggested that some priority be
given to solve this problem when the site becomes accessible
again in 2012.
- Intertie: 10/11. A
proposal was made to add equipment so that the 146.960
repeater (Francis Peak, above Farmington) could be linked to
the intertie. For the most part, this would be a matter
of installing a UHF link radio/antennas.
- UVHFS: 8/11. The 145.350
repeater and its associated HF remote base has be installed
- Jacob's Lake: 8/11.
Using equipment on-hand, W7KBM and WA7GTU went to Jacob's Lake
to put the 147.300 repeater back online. Several
problems were encountered with respect to getting the old
equipment working again and it is not yet fully operational or
on the Intertie.
- Jacob's Lake: 7/11.
Local (Kanab) interest has been expressed in putting the
Jacob's Lake repeater (147.300) back online and re-interfacing
it with the Intertie. Discussions as to the degree of
support by the UVHFS are ongoing.
- UVHFS: 6/11. As noted
previously, the Utah VHF Society had been considering
"assigning" UHF frequencies for operation of simplex
internet-connected nodes (e.g. Echolink, IRLP, DV-Dongle,
etc.) to avoid possible interference with coordinated
systems. It should be noted that "assigning" a frequency
is not the same as coordinating, but rather implying a
"gentleman's agreement" to prevent interference between
repeaters inputs/outputs, link frequencies and other
users. At this time, the simplex frequency manager,
John, W7CWK, has been working with people with simplex needs
to this end.
- W7BOZ: 5/11. W7BOZ has
been coordinated 449.300 for a low-level repeater at his Logan
- Herriman ARC: 5/11. The
Herriman group has notified that 449.250 repeater is
operational from Herriman High School as KC1F.
- ARES: 5/11. A query was
received pertaining to the disposition of the ARRL-affiliated
ARES repeaters so research was done in determining ther
original intent and current dispostion. Using paper
records with signatures, the following was determined:
- 146.880. Originally
coordinated as a repeater owned by the Utah VHF Society in
the early 1970's, it was operated by Pat, W7RQT. In
the late 80's or early 90's, the ARES group requested that
they could use it and permission was granted. There is
no record of this repeater changing hands from the UVHFS to
ARES, but since they have been using it most heavily, ARES
has been maintaining it. It should be noted that the
UVHFS booklets have listed the aforementioned status for
many years - at least back into the early 90's. This
repeater has long been located at "Baccus" - which refers to
several sites in the same general area.
- 224.940. Located near the
VECC site on the west side of the valley, simply called
"Rushton" because of local convention. It, too, is
simply called "Bacchus" since that is a more useful name.
- 449.900. At one time located
on Ensign Peak it, too, is located at Rushton/Bacchus.
Since the 90's it has been associated with the local ARES
- UVHFS: 2/11. The Utah
VHF Society has received an exemption related to collecting
taxes at the swap meet. Previously, the UVHFS had to
"eat" the estimated sales taxes at the event - a decision made
in the interest of maintaining good relations with the sellers
present. With this exemption, the UVHFS is relieved of
the direct responsibility of doing this and it is up to the
sellers to properly account for and pay the relevant taxes, as
has always been the case in years past!
- UVHFS: 1/11. It was
noted that the 447.225 repeater (N7TDT) has still been off-air
for well over a year without recent updates and the trustee
was contacted. He responded and stated that he was still
planning to put it back on the air.
- Herriman ARC: 1/11. The
Herriman ARC has requested a low-level UHF repeater
pair. The use of the SNP was suggested for the
- General: After considerable
effort on the part of the utilities, power was gradually
restored to the locations mentioned below.
- UVHFS: 12/10. Discussion
amongst UVHFS officers and those related to EMCOMM has
resulted in the opinion that the link radios at Blowhard,
Frisco and elsewhere (as needed) should be replaced as they
are 30+ years old. This was spurred (pun intended!) by
the low-level interference generated to another on-site tenant
(Air Cell) from the old transceiver. While not
crippling, the links were turned of (except in special cases)
to minimize interference and be neighborly - see the 11/10
report, below. Because these links are critical
infrastructure for EMCOMM purposes on the Intertie (e.g. they
do not require internet connection to operate, unlike some
proposed EMCOMM solutions) the need for upgrade/replacement is
arguably more critical.
- General: 12/10 Due to
extremely heavy snowfall before 12/22, the power to Blowhard
Peak has been interrupted and all radio systems - including
the Doppler Radar Site nearby - went offline. In the
general area, several radio stations and other commercial
facilities have also gone offline due to loss of power and
generator/backup failure. With the severe conditions,
access is currently unsafe/impossible. This was part
of the same storm system that affected Northern Utah and
took out the power to Scott's Hill as well as Brighton.
- General: 12/10. Rocky
Mtn. Power has reported that the lines feeding Scott's Hill
were taken down by falling trees before 12/22 and that the
power would be off until after it was safe to access the
area. This affects all amateur repeaters on site,
including the 147.270 Intertie and the 146.620 UARC
systems. There is also a widespread power failure in Big
Cottonwood Canyon and the ski resorts are adversely affected.
- UVHFS: 11/10. It was
observed that the 447.250 repeater was again on the air, this
time signing "K7SLC." It should be noted that no
information on this repeater/frequency had been received since
2004 when the original owner, K7MRS (who passed away prior to
4/2008) had updated the frequency coordinator. According
to the conditions of coordination to which the original party
had agreed, any changes must be submitted in writing or, at
the very least, the coordinator notitifed, or coordination
would lapse. Because of this, the repeater currently on
the air using this frequency is not coordinated.
- Frisco Peak: 11/10. It
was determined by "Air Cell", an aeronautical "cell phone"
provider (e.g. in-flight telephones on commercial aircraft)
that low-level local-oscillator leakage was causing
interference to them. While the level of the signal was
well within FCC specifications, it was decided - in the
interest of being a good neighbor - that the radio(s)
radiating the signal(s) should be powered down. It is
likely that this leakage is from power/control lines to/from
this receiver. In the event of an emergency, these links
may be remotely commanded back on. It should be noted
that Air Cell has been good to work with and that this
interference is not crippling, but only "degrading". It
is worth noting that the affected link radios are original and
30+ years old and should be replaced, anyway.
- K7JL: 10/10. Work was
done on the Laketown-area repeaters by K7JL and
K7OGM. Both the 147.120 and 147.020 were worked on and
it was discovered that parts would need to be ordered.
It was also noticed that the NOAA (weather service)
transmitter on-site had extremely low audio and the NWS was
- Medicine Butte: 10/10.
Work was done to get the Medicine Butte Intertie-linked
repeater (146.860 near Evanston, Wyoming) repeater back on the
air. It was discovered that the building supporting the
antenna mast had blown over in a very high wind. The
building was righted, its foundation shored up and the inside
loaded with a ballast of rocks found on site. Minor
damage was repaired and the repeater placed back online.
- WA7X: 9/10. Work was
done to fix a problem with the 70cm port of the 448.150/53.150
repeater. A high VSWR was noted and the antenna was replaced,
but feedline issues were also noted which will be addressed on
a future trip. This repeater signs "KI7DX" and one may
read about it on the KI7DX Repeater
page. This is not a UVHFS-Affiliated
repeater and this was not a UVHFS project, but is mentioned
here for completeness.
- UVHFS: 9/10. It was
observed that the repeater on 448.875 repeater signed "WB7RVF"
- a callsign that expired in 2001. Upon further
investigation was was discovered that it had been
mis-programmed and should have been "WB7RPF".
- D-Star Farnsworth: 9/10.
John was able to work with KF6RAL and get another 70cm
isolator and the 70cm D-Star repeater on Farnsworth is now
back in operation.
- Mapleton ERC: 9/10. The
Mapleton ERC group wishes to put a low-level repeater on
146.800: To do this they will need to get a written
sharing agreement from the trustee of the Sedgwick repeater in
Idaho on this same frequency.
- UVHFS: 8/10. The
relevant parties requested (and received) a change so that the
447.900 repeater would be listed as being affiliated with OLRC
and SJord as the RMRA is no longer extant.
- D-Star Farnsworth: 7/10.
It has been observed that the transmit signal strength of the
KF6RAL 70cm D-Star repeater has decreased by about 20dB.
Note: It was determined shortly after this
that the 70cm isolator had failed open.
- UVHFS: 7/10. WA7GTU,
W7KBM and N7KM went to Frisco Peak to replace failed tone
decoder(s). With additional circuit protection and
different mounting it is hoped that these encoders will not be
damaged again by transients/lightning or whatever it is that
seems to like to kill them.
- Hidden Peak Intertie: 6/10.
The north link (Hidden Peak to Malad) is offline due to a
problem at Malad and site access is not currently possible due
- Park City: 6/10. The
status of the 145.230 repeater in Park City is unknown and the
contact information is not longer valid. It appears to
- UVHFS: 6/10. The
question of frequency on which testing of a "D-Star Hotspot"
could be operated has come up. It was noted to the
questioner that while the very low power of the hot spot
itself is unlikely to cause a problem, the much higher power
of the radio used with it (e.g. an HT running 1/2 watt) could
be an issue. The UVHFS should consider recommending a
UHF simplex frequency on which such gear could be operated
without causing interference to existing systems.
- UVHFS: 6/10. The trustee
of the 146.740 repeater near Enterprise, Utah has notified the
UVHFS of a correction to the database as to its location.
- UVHFS: 4/10. It has been
observed that the 447.250 repeater pair, formerly coordinated
to Russ Scholz, has been left "fallow" since some time after
his passing. According to the coordination rules to
which the original owner/trustee agreed, coordination of this
pair has lapsed and is no longer extant.
- UVHFS: 4/10. W7RSS has
released the 449.075 repeater pair and it is now available for
- UVHFS Swap Meet: 2/10.
At the business meeting at the Utah VHF Society Swap Meet held
on 2/27/2010 it was voted to:
- Purchase a Yaesu FT-857 or FT-897, tuner,
power supply and HF antenna (dipole-type or vertical) to
complete the remote base HF station tied to the 145.350
- Purchase an 8-port repeater controller
for Farnsworth Peak to upgrade its interface to the
- UHF Bandpass filter for Frisco Peak to
accommodate new requirements.
- Allow Blowhard and Jacob Lake
linking. This will likely be done with gear on-hand
and need only site-specific items (e.g. crystals,
- Minor upgrades to Scott's Hill (145.270.)
- Minor expenses (e.g. envelopes, paper,
postage) related to the operation of the UVHFS.
- Pay sales Tax for the swap meet owing to
a "crackdown" by the state since individual vendors did not
file. We will look into obtaining an exemption status
from the state.
- Farnsworth Peak Intertie:
2/10. The link south from Farnsworth to Levan peak is
offline owing to a transmitter failure at Farnsworth,
effectively isolation Levan Peak from the Intertie. It
is hoped that this transmitter can be repaired soon.
- Frisco Peak Intertie:
11/09. W7WFW and WA7GTU went to Frisco Peak on the 22nd
and restored the link between it and Blowhard.
- UVHFS: 11/09. There
seems to be an errant node on 146.46 Mhz. Update:
This node was DFed and found to be at the State
Capitol. Control of it was re-established and it was
- UVHFS: 11/09. The
145.370 (formerly at Tower Mountain in Utah County) will be
moving to a location west of Magna. It should be noted
that doing so risks the loss of this frequency's status as a
"Wide Coverage" repeater.
- UVHFS: 10/09. It was
noted that there is an IRLP node (#3125) on the 449.725
repeater that does not appear in the listings as determined
from activity on that frequency.
- UVHFS: 10/09. As voted
on at the 2009 UVHFS Swap meet, the HF remote base and
repeater is taking shape an in its testing phase. It is
anticipated that this will be installed at a site on the west
site of the Salt Lake valley for which there is an existing
- UVHFS: 10/09. A
complaint was received about interference between a a repeater
in Las Vegas and a link frequency. It appears as though
the Las Vegas group moved from a low-level to a mountaintop
location, causing interference: The Nevada coordinator
and the owner of that repeater have been notified.
- ARRL/UVHFS: 10/09. The
ARRL has approved a study to determine the practicality and
benefits of amateur operations to migrate to
narrower-bandwidth operations on the VHF and UHF amateur bands
(e.g. from +/-5kHz deviation FM to "narrowband" +/-2.5 kHz
deviation and digital system) and the Utah VHF Society and
frequency coordinator will closely follow this as technology
evolves and needs develop. It should be noted that
earlier (2008) the Utah VHF Society had determined that a
minimum 12.5 kHz spacing was required for reliable
adjacent-channel D-Star operations and that 15 kHz (minimum)
was required between a D-Star and analog channel. The
UVHFS had also realigned the bottom several 2 meter repeater
pairs (starting at 145.1125 MHz) narrowband digital pairs with
12.5 kHz spacing.
- K7JL: 9/09. John, K7JL
has gotten the D-Star Stack provided by KF6RAL installed and
(mostly) working on Farnsworth Peak. There are some
on-site desense issues that need to be resolved as well as
coordinating of IP ports with the network administrators to
allow internet access for the D-Star stack. This stack
includes 2 meter, 70cm, and 23cm voice (DV) repeaters as well
as a half-duplex 23cm digital (DD) unit.
- UARC - 146.620 System:
9/09. The Utah Amateur Radio Club has informed the
frequency coordinator that the 146.620 Synchronous/Voting
repeater system is now in full operation. This consists
of a pair of repeaters - both using the 146.020/146.620
channel with one on Scott's Hill above Brighton, Utah and the
previously-existing repeater on Farnsworth Peak. These
operate as a single repeater with overlapping coverage.
More information may be found at the UARC
146.620 Repeater System web page.
- UVHFS: 9/09. Based on an
update from the owner, the W7DBA 448.025 repeater in
Huntsville is now listed as being active.
- UVHFS: 8/09. The use of
146.650 for Echolink Simplex by Cottonwood City was
discontinued. Clarifying their needs, the UVHFS has
worked with them so that future problems can be
prevented. Closer attention is to be given to maintain
better contact with the various groups using/sharing simplex
frequencies for this sort of purpose as well as their normal
nets to reduce the likelihood of interference.
- UVHFS: 8/09. The N7TDT
repeater (447.225) had been off the air for months and with
the need for UHF repeater pairs, updates on the status were
requested of the owner to verify that the pair was going to be
used in the future.
- UVHFS: 8/09. Because of
change in ownership of the site and greatly increased rental
fees, the 145.370 repeater would be moving from Tower
- UVHFS: 8/09. SDARC has
requested that the 147.080 repeater should move to Lake
Mountain and that some of the UHF links would be
reconfigured. Recoordination was completed and work
- UVHFS: 7/09. UARC has
obtained from the Utah VHF Society some pieces of equipment
(namely several GE MVP chassis) that will be used for the
full-duplex UHF links between Scott's Hill and Farnsworth for
the 146.620 synchronous repeater project.
- UVHFS: 7/09. Simplex
Echolink operation has been observed on 146.650 from
Cottonwood City, making both 146.640 and 146.660 operation -
both common from the Wasatch Front - impossible when the
Echolink node comes up. This is in violation of the 20
kHz band plan.
- Blowhard Intertie: 6/09.
WA7GTU and WV7H went to Blowhard (on their own dime!)
to investigate a problem with the 146.80 repeater.
Expecting mainly duplexer issues, they discovered that various
portions of its transmitter had incinerated themselves and
that the main transmit antenna was damaged and will likely
need to be replaced. A "temporary" repair will be
implemented in the next couple of days to make the repeater
usable until a permanent repair can be effected.
- D-Star Ogden: 6/09.
D-Star repeater pair on 447.950 coordinated for use at the
Ogden Sheriff's office.
- UVHFS: 4/09. The
frequency of 145.670 has been proposed as a simplex frequency
for D-Star along the Wasatch Front. Note that
this is not a coordination, but rather to inform so that this
sort of operation may occur under the "gentleman's agreements"
under which most simplex operation occurs on the amateur
- Frisco Peak: 3/09.
Frisco Peak is back online thanks to someone with whom Don,
WA7GTU had been in contact who had business on site and
corrected the power problem.
- FCC: 3/09. In a
clarification, WB6YRU filed and FCC petition to clarify the
definition of a "repeater". This came about because of
the word "simultaneous" in Part 97, Section 3(a)(39).
The FCC indicated that "simultaneous" referred to an active
transmitter at the station being active at the same time as a
receiver and a system with a delay incurred in the system
(e.g. digital delay as would be the case with digital voice)
would still be "simultaneous." Reference:
ARLB018, 24 March, 2009.
- Frisco Peak: 2/09. Due
to a power problem, the amateur gear on Frisco Peak was
offline. This will be investigated as soon as possible.
- UVHFS: 2/09. It was
noted that the 448.825 repeater still signs "KD7PB" even
though the licensee has changed calls: The trustee was
- UVHFS: 2/09. The W7TEU
(147.220 MHz in Box Elder County) status was updated with the
emphasis that it not cause interference to a repeater on the
same frequency in Utah County: No such interference has
- UVHFS: 9/08. The W7XDX
repeater on the 33cm band (927.1125 MHz) was reported to now
be operating from Butterfield Peak.
- UVHFS: 9/08. Extensive
work was done at Navajo mountain and other sites in southern
Utah to restore its proper operation and coverage as well as
to allow it to be linked to the Intertie. It should be
noted that most of the expense involved was actually that of
transportation, food and lodging - all of which was borne by
the participants themselves.
- UVHFS: 9/08. WA7GTU,
W7KBM, WV7H installed link radios at Blowhard to allow the
146.960 Navajo mountain to be connected to the Intertie.
- D-Star: 9/08. As the
result of additional testing with D-Star equipment, a web page
was created that outlines the nature of the codec used in
D-Star and important considerations that should be taken when
it is used - particularly in EMCOMM (Emergency Communications)
D-Star Codec Behavior.
- Scott's Hill Intertie:
8/08. The Scott's Hill 145.270 repeater was repaired and
put back online.
- Levan Peak Intertie:
8/08. The UHF Intertie link antenna to Levan was
upgraded to make communications more reliable.
- Scott's Hill Intertie:
7/08. The Scott's Hill 145.270 Intertie-linked repeater
was damaged by a severe power disturbance. A repair
project is in planned once it has been verified that the road
is open for the season and the nature of the problem is
- UVHFS: 5/08. K7MLA
notified that 448.875 was undergoing testing after having
changed hands, having been donated to the . The
appropriate re-coordination process was begun.
- UVHFS: 4/08. NV7V
notified the UVHFS that 447.000 repeater would be off air for
a while for a rebuild.
- UVHFS: 4/08. N7EVC was
contacted as to the disposition of his 447.425 repeater which
had been previously proposed. Based on his response,
additional time was given to get it on the air pending a
sharing agreement with the owner of another repeater in the
area on the same frequency.
- D-Star and other digital audio:
3/08. As per prior analysis and measurement and with the
approval received (see below) the former 1200 baud
packet repeater pairs were realigned for use by digital audio
system such as D-Star. The repeater pairs will use
standard -600 kHz split and 12.5 kHz spacing. In those
instances where there is already existing infrastructure (e.g.
the 145.190 analog repeater) protection would be offered
between those and proposed systems to avoid
interference. The frequencies are:
- UVHFS Swapmeet: 2/08. At
the Utah VHF Society Swapmeet:
- In a sub-gathering of repeater operators
and others the idea of releasing what had been 1200 baud
packet repeater pairs and re-allocating them for D-Star and
other digital audio use was discussed. No-one present
- which included those who had interest in packet operation
- objected in re-purposing these frequencies. This was
then brought up to the general attendance an no-one voiced
an objection provided that accommodation be made for the
existing 145.190 repeater operated by the IHC club.
- BARC (Bridgerland Amateur Radio Club) is
planning a major repair and upgrade for the Mt. Logan
repeater, a project expected to cost about $4000. It
was agreed that the Utah VHF Society would provide about 25%
of this amount.
- D-Star: 2/08. Based on
the testing of three different D-Star capable transceivers,
the analysis of the specifications of the IF filtering
contained in these radios, their actual occupied bandwidth and
adjacent-channel and interference potential testing of the
three D-Star radios and a larger number of typical analog FM
radios, a recommendation has been made with respect to D-Star
to D-Star and D-Star to Analog channel spacing:
- D-Star to D-Star channel spacing:
- D-Star to Analog (+/-5 kHz deviation)
channel spacing: 15 kHz
- For more information on these
recommendations, please read see the D-Star Channel
- UVHFS: 1/08. The first
results of the D-Star testing - now running for several days
with the cooperation of others along the Wasatch Front - are
coming in. In the absence of multipath, a "noisy but
copiable" analog signal correlates with a marginal D-Star
- D-Start: 1/08. With the
increasing D-Star activity, it was observed that the available
information from ICOM and other sources does not
include the technical data required to properly maintain
D-Star radio equipment or make an informed decision as to the
necessary channel spacing between adjacent D-Star channels or
between a D-Star channel and a conventional FM analog channel
as well as. Because of this, the Utah VHF Society has
begun a program of bench-top and real-world analyses to
determine important aspects of D-Star operation before
committing to coordinate frequencies. This testing
included the temporary testing of alternating D-Star and
analog transmissions on 145.170 MHz to determine propagation
and A/B comparisons of analog and digital signals from the
same transmitter at the same power level.
- UVHFS: 1/08.
Clarification of the disposition of the 449.300 portable
repeater for use in Davis County and surroundings for
- UVHFS: 1/08. John Lloyd,
K7JL continues to contact several repeater operators for
updates/clarification due to the impending deadline for
information for the ARRL Repeater Directory.
- UVHFS: 12/07. Request
for more information from KR7D about its apparent linking of
the 147.220 and 145.430 repeaters in Utah County, this being
done in order to ascertain the possible frequency-reuse of
147.220 in Northern Utah.
- UVHFS: 11/07. Request
made to coordinate a UHF repeater near Duck Creek Village, UT
- Farnsworth Intertie:
11/07. Work has been completed at Farnsworth Peak and
the link to Levan Peak is now operational.
- Frisco Peak Intertie:
10/07. The replacement of the tower at Frisco Peak has
been completed with the old antennas transferred and the old
tower has been removed, this in response to the observation
that the original tower was damaged and beyond economical
repair. Repairs were also completed on the link radios
and the 146.94 repeater. It should be noted that this
work took several people several days and that the
participants bore the travel/food/lodging expenses involved.
- Levan Peak Intertie:
10/07. Work on the Levan Peak repeater and link has been
completed and is operational.
- SDARC: 10/07.
In response to an emergency request, the Utah VHF Society has
made available $980.00 to the Sinbad Desert Amateur Radio Club
(SDARC) for emergency replacement of radio gear that had been
destroyed by lightning. The SDARC, although not very
large in membership numbers, maintains a linked repeater
system that covers most of southeastern Utah by the
commendable and dedicated efforts of everyone involved.
Even though the SDARC is not currently a UVHFS-aligned
organization, this request was granted due to the importance
of this system to the amateur population in general.
- Hidden Peak Intertie:
9/07. A power transient damaged the controller at the
Hidden Peak (a.k.a. Snowbird.) The controller was taken
down to the valley and repaired, but awaiting full testing and
enough time time to visit the site. Because this radio
site is accessible year-round, priority has been placed on
completing work at those other pending sites that do not have
- UVHFS Swapmeet: 2/24/07.
At the annual Utah VHF Society Swapmeet and business
meeting. Several items of business were
conducted during this meeting. By acclamation, the
previous years' officers were re-elected. These officers
are: President, Mel Parkes, NM7P; Vice President,
Don Blanchard, WA7GTU; Secretary, John Mabey,
W7CWK; Treasurer, Danny Fullerton, KC7RUF; and
Frequency Coordinator, John Lloyd, K7JL.
Additional items voted on by the
- Unanimous vote approving the revised Utah
VHF Society Bylaws.
- Appropriation of monies for other
- UVHFS Swapmeet: 2/25/06.
At the annual Utah VHF Society Swapmeet and business
meeting. Several items of business were
conducted during this meeting. By acclamation, the
previous years' officers were re-elected, with no other
candidates having been proposed for office. These
officers are: President, Mel Parkes, NM7P; Vice
President, Don Blanchard, WA7GTU; Secretary, John Mabey,
W7CWK; Treasurer, Danny Fullerton, KC7RUF; and
Frequency Coordinator, John Lloyd, K7JL.
Additional items voted on by the
- Unanimous vote to provide a sum of $1000
to the Ogden Amateur Radio Club for upgrades to their club
- Unanimous vote to provide purchase a new
set of duplexers for the 146.80 MHz Blowhard Peak VHF
Repeater. No fixed dollar amount was set, but this is
expected to be under $2000.
- Unanimous vote to provide "seed" money
for a planned 2006 WIMU Hamfest in the amount of $250.
- Unanimous vote to more rigidly enforce
frequency coordination rules to reduce the number of "paper"
It was also announced to the
membership present that it had been proposed to replace the Utah
VHF Society Bylaws with updated instruments - See the
next item, below.
- UVHFS: 2/06. Mel Parkes,
the Utah VHF Society president, has proposed a significant
revision of the documents that govern the Utah VHF Society in
order to both clarify and modernize them. A proposed
draft may be see online at the following link: Proposed
VHF Society Constitution. This
document will appear at this link for the next several months,
revised as necessary according to suggestions and need, and
will be voted upon by a quorum of members over the next
several months. If you wish to suggest changes to
this document, please send an email to the Utah
VHF Society President or another Utah VHF Society
- UVHFS: 1/06. The Utah
VHF Society Website now has a new URL: utahvhfs.org.
The old URL will continue to work for the foreseeable future,
but I'm sure that you agree that the new one is much easier to
- UVHFS: 11/05. With the
help of Gordon, K7HFV, the repeater listing database is once
again automatically updated and a "raw" data file is available
once again. One of the more useful new features is a
"detail" page for each repeater that displays information that
simply would not fit in a simple listing, such as:
- The latitude/longitude of the repeater
- The site elevation.
- Various details of the repeater
operation, such as autopatch, weather, open/closed, internet
linking, wide area coverage, etc.
- The name of the sponsoring organization
of the repeater, rather than just an acronym.
- Expanded details related to the footnotes
in the database.
- A description of the approximate coverage
area of the repeater.
- A link to a web site with more
information about the repeater.
For many repeaters, not all of this
information is available so if you can supply missing or updated
information about a particular repeater, or if you have comments
about how the information is presented on these pages, please
contact the frequency
coordinator with that information.
Please note that work on these pages continues, so the format
and layout may change slightly over time.
- UVHFS: 10/05. The script
that is used to automatically update the repeater listings is
once again in operation. This script takes the frequency
coordinator's database and formats it into web page format as
well as producing a "raw" data file for use by others.
Additional enhancements will follow in the coming months...
- Frisco Peak Intertie:
9/05. Don, WA7GTU, has completed repairs and replacement
of equipment and antennas on Frisco Peak and the Intertie's
UHF link between southern and northern Utah is once again in
- K7HEN: 5/05. Mack,
K7HEN is in the process of relocating the 147.24(+) Tabby
Mountain repeater. This relocation has been necessitated
by the recent requirement of a $3000 fee (having to do with
School Trust lands) that cannot be borne by the volunteers
that support this system. The new site will be on Cedar
Mountain (near Fruitland) and will offer coverage very similar
to that of the Tabby Mountain repeater and it will also be
linked to a site near Lewis Peak and to Butterfield
Peak. This reconfiguration of the system is expected to
occur sometime over the summer.
- WA7GTU: 5/05. Don,
WA7GTU reports that as of 5/19/05 the "Cedar City" 146.94(-)
repeater (actually, it's closer to Milford) is down due to
equipment failure - possibly a 2 meter receiver. For
safety, the transmitter and the other links have been turned
off until repairs can be made. This failure effectively
severs the link between the Wasatch Front and points
southward, into St. George and Las Vegas.
- Hidden Peak Intertie:
3/05. John, K7JL, reports the failure of a link
transmitter that ties the Intermountain Intertie's main hub
repeater on Snowbird Peak (147.18+) to the 147.12(+) repeater
on Farnsworth Peak. The failed transmitter, on Snowbird
Peak, will be replaced as soon as time and weather permits.
- UVHFS Swapmeet: 2/05.
The body of the Utah VHF Society Membership voted, at the
annual meeting held in conjunction with the swapmeet, to align
the following repeaters with the Utah VHF society:
- 146.70, Ensign Peak. This repeater
covers the Salt Lake valley and Davis counties and is
operated by Salt Lake County ARES.
- 449.90. This repeater, located in
the foothills of the Oquirrhs, shares the site with the
already-coordinated 146.88 repeater operated by Salt Lake
- Two other repeaters, one of them in the
Cache valley area, were considered for alignment, but this
was shelved pending further developments on the parts of the
- K7DSN: 9/04. A
repeater on 447.400 has gone into operation from Teat Peak.
- UVHFS: 4/04. A
repeater on the under-utilized 222 MHz band is scheduled to be
installed at Mt. Harrison north of the Utah-Idaho
border. This repeater will have wide coverage extending
into large portions of Box Elder, Weber, and northern Davis
- UVHFS: 4/04. There are
increasing numbers of "incidents" involving "simplex"
IRLP/Echolink nodes and/or crossband repeaters. There
have been several recent occasions where one of these types of
systems will suddenly appear on the air with no apparent means
of control. On several occasions, these have disrupted
repeater operations and/or simplex operations on the
frequency. Please remember that such unattended
operations with no means of control are illegal -
and, at the very least, represent poor operating
practices. Several of these systems have had
no apparent ID - a fact that makes it more difficult to
contact the responsible party. Reports of such
systems are routinely forwarded to our local Official
- UARC: 4/04. Work
continues on interfacing the 146.76 UARC repeater (on Lake
Mountain, west of Orem) to IRLP. See the UARC
IRLP page for more info.
- KB7OGM: 4/04. Eldon
reports continued progress on installing a new "intertie-linked" repeater near
Montpelier Idaho near the north end of Bear Lake. This
repeater will be on 147.12+ and fill in the gaps in coverage
at the northern end of the lake.
- UVHFS: 4/04. There is
increasing pressure on our 2 meter simplex frequencies.
Please remember that these frequencies are a resource shared
amongst all parties. Please refer to the Simplex Frequency Assignments
page for more info on who is on which frequency and when.
- Levan Peak Intertie:
4/04. Work is resuming on the 145.27 repeater to be
installed at Levan Peak. This repeater will be part of
the Intermountain Intertie and
will provide an additional link to the intertie's repeaters in
the southern part of the state.
- K7QEQ: 3/04. Royce, trustee
of the Moab 146.76 repeater, requests "de-alignment" from the
Utah VHF Society as he has made no requests for UVHFS support
for well over a decade. Because this requires a vote by
a quorum of members, it is likely that this will not
officially happen until the next vote at a UVHFS Swapmeet.
- UVHFS: 2/04. At the
swapmeet, it was voted that two of the packet repeater
frequencies, 145.190 and 145.170, be made available for voice
- KJ7YE: 1/04. Robert
reports that he has put the 223.880 repeater on the air from
- K7OJU: 11/03. Dave
reports that the trustee of the 448.000 and 1285.000 MHz
repeaters, W2IO, has moved from the Salt Lake area and that he
has assumed responsibility of these repeaters.
- IHC Radio Club: 11/03.
The Intermountain Health Care Radio Club (W7IHC) purchased the
448.550 repeater and has installed it at their station in West
Valley. This repeater was re-coordinated as necessary.
- WA7GTU: Don Blanchard
reports that as of 9/03, the 146.34-94 repeater on Frisco Peak
is not using a subaudible tone decoder.
This means that, for the moment, a tone is not
required to access this repeater. The tone decoders were
damaged by lightning and the feature was disabled. It is
expected that tones will be required in the
future, once the decoders are replaced/repaired.
- WA7GTU: The following is
an update from Don Blanchard, WA7GTU: "Because
of interference from other sources at Frisco Peak, the 100 Hz
PL on 146.34-94 has been activated, at least for the present
time. In the event that you do not have PL it is still
possible to use the repeater and link system. Sending
the command *870 will turn the PL requirement off and *879
will turn the PL requirement back on. Keep in mind that
you will not get a squelch tail until it is functioned
off. Please turn the PL back on when you are
finished. When the control codes are properly decoded
you will get a command complete beep. There may be a
timer function in the software (not verified) that will turn
the PL back on automatically after a period of time."
- Frisco Peak Intertie: On
12/13/02 Don Blanchard, WA7GTU, made a trip to Frisco Peak to
work on that site's connection to the Intermountain
Intertie, among other things. Various adjustments
were made which allowed the North/South link that connects
Northern and Southern Utah to be put back online. Please
note that this link is still experiencing occasional fades,
but is generally working well. Further improvements are
planned as time/weather permits. (12/02)
- UVHFS: Beginning January
2003, the weekly Utah VHF Society Swap and Traffic Net will be
held on the 147.12+ repeater. The '12 repeater has
better coverage of the northern part of the Wasatch
Front than the 146.94 repeater and it is linked to the Intermountain Intertie. This
increased coverage will allow a greater number of people to
participate in the net. (12/02)
- UVHFS: The annual
UVHFS swap meet is to be held on Saturday, February 22, 2003
in the Zion building at the Utah State Fairpark. Doors
open at 8:00 A.M. (12/02)
- OARC: As of 9/2002, two
repeaters of the Ogden Amateur Radio Club (OARC)
have returned to the air: 146.82, Mount Ogden and
146.90, Little Mtn.
- UVHFS: The 145.35- repeater
was voted by the membership to be aligned with
the Utah VHF Society. This repeater has been on air
testing intermittently. This repeater will be installed
at one of three locations: 1) Summit Park area
along I-80 near Park City. 2) Point of the
Mountain between Lehi and Draper. 3) In
the foothills of the Oquirrh mountains along highway 111 in
the vicinity of 5400 South. (Date of action:
2/24/2001, at the 2001 UVHFS swap meet.) As of
12/2002, this repeater has not been installed in a
- UVHFS: As of 6/2002,
permission was obtained by the UVHFS to place a repeater on
Levan Peak. This repeater will be part of the Intermountain Intertie and operate
on 145.27, a frequency shared by two other repeaters in the
same system. The two other repeaters are on Scott's Hill
- near Guardsman Pass near the town of Brighton, and Mount
Harrison in southern Idaho. Analysis shows that there
should be minimal overlap amongst these sites in populated
areas, with any overlap being at least partially mitigated by
the fact that they will all generally carry the same audio
source. This repeater will provide additional coverage
in the center of the state, including Sanpete Valley to the
east, and to the west of Delta. (Date of
action: 8/2002, by the UVHFS officers.)
2001 and earlier
- UVHFS: The 146.80- repeater
was voted by the membership to be aligned with
the Utah VHF Society. This repeater is located atop
Blowhard Peak in southern Utah. This repeater provides
coverage into Panguitch, Kanab, and other communities and
covers a large portion of rural southern Utah. This
repeater is normally connected to the Intermountain
Intertie. (Date of action: 2/24/2001, at
the 2001 UVHFS swap meet.)
- UVHFS: The 147.22+ repeater
was voted by the membership to be de-aligned
with the Utah VHF Society. This repeater was formerly
located at the point of the mountain (one of the suggested
sites of the 145.35 repeater above.) Recent gravel
mining required that the original site be relocated and the
owner of this repeater (WA7YZR) chose not to locate his
repeater at the new site and moved it to his personal
residence. The membership decided that this repeater no
longer meets the requirements for UVHFS alignment. (Date
of action: 2/24/2001, at the 2001 UVHFS swap meet.)
Purpose of this page:
The intent of this page is to keep
the UVHFS membership, and the Amateur Radio community in
general, apprised of various changes. Changes within the
purview of this document include, but are not limited to:
If you have an item that you feel should
be added, please direct it to the email address below.
- Recent repeater coordinations and
requests for coordination
- Proposed changes in Coordination policy
- Proposed changes in UVHFS policy and/or
- New or updates concerning UVHFS-owned
and/or aligned repeaters
- Noteworthy news concerning any
repeater/system in Utah and the surrounding states
- Other Amateur Radio-related items, as
The organization of this page:
This pages is organized as a register - that is, the
most recent items are at the top, proceeding backwards
chronologically as one goes down the page. Older items
are not generally edited or except to correct gross
typographical or factual errors: Updates are added as
new items at the top and old items will be deleted as deemed
necessary to maintain a manageable page size. The source
or general nature of the item is noted at the beginning of the
entry in bold type.
Please note that some of the issues
discussed are rather technical in nature and/or detail
information that is not normally made public (e.g. certain
link frequencies, etc.) and because of this - and space
constraints - some of the above descriptions are abbreviated
in terms of details. If you have any questions about
what appears above, please feel free to direct questions to
the email address listed below.
A complete list of
all known Utah repeaters is online here.
Questions, submission, updates, or comments
pertaining to this web page may be directed to: email@example.com
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