Yellowstone NP update (?)

[ssmith39]

The information I find on the Yellowstone NP freqs. seems conflicted. Does anybody have a current list of active frequencies ?

Thanks in advance.

 

[SM166]

Yellowstone

I have a file in MS word - all my notes from the last few years visiting out there includes Teton Nat Park, I am not always able to get out there and could also use updated info send me your email take my notes tell me what you think add to them....

 

[zerg901]

SM166 - could you post the info here? Peter Sz

 

[chris_a_rodgers]

Heres frequencies I posted awhile ago. These were on the frequency roster when I worked for BLM last summer. I haven't confirmed them though.
Channel
1 166.3750 Unit to Unit, North System (simplex)
2 166.3750 Repeater, North System (repeated)
3 165.5875 Unit to Unit, South System (simplex)
4 165.5875 Repeater, South System (repeated)
Air Net 172.5000 Park Aircraft Channel (simplex)

 

[SM166]

? how do i post the file here? The file is large, mix with notes/commentary from various sources like Chris just posted and my own monitoring, it would take time to sort it all into a list, notes include what wild- fire engine is assign to what area etc.

 

[zerg901]

Maybe you could break up the info into diferent sections, and post it as text here in the message board. Peter Sz

 

[kf7yn]

I spend a lot of time every summer in Yellowstone. Here is my list which is based on Chris Rodgers list with some corrections and additions. These are all verified.

1 166.375 North System; Mammoth, Norris, Tower/Roosevelt (simplex)
2 166.975 North System (repeater input)
3 165.5875 South System; Lake Village, Bridge Bay, Grant Village, Lewis Lake (simplex)
4 164.800 South System (repeater input)
5 167.150 Scene of Action (SOA) (simplex) Sometimes used as car to car.
6 163.125 SOA (repeater input)
7 166.875 West System; Madision, Firehole, Old Faithful.
153.905 "Gold" This is used now and then by Lake and Grant Rangers as a car to car chat freq. It is also common with West Yellowstone Montana PD who also call it "Gold", some interesting stuff goes on here.
172.500 Fire Cache (formerly Air Net freq)
168.650 Flight Following/Air Net
155.280 EMS 1 (Ambulance to Mammoth and Lake Clinics)
462.450 Lake Clinic
463.450 Multi-Use (YPSS tow trucks, etc)
152.420 Xanterra Stores & Campground Ops (store and campground employees)
There is a new NOAA Weather transmitter at Grant Village, I think it's on WX-1 162.400
Marine Ch's 16, 18 and 68 are always busy with fishing charter boats, Lake Queen tour boat, Bridge Bay Marina, etc. If you want to know where the fish are biting on Yellowstone Lake, listen to Ch 18.
146.520 Ham radio simplex. One of the fire outlooks on Mt Holmes monitors this freq. His name is George, callsign WA7GSN. He loves to chat so give him a call if you're a ham.

Grand Teton NP
1 171.675 (simplex)
2 172.425 (repeater input)

Hope to see you there this summer!
I monitor 146.520 and 446.000 Simplex from Grant Village
Jon KF7YN

 

[zerg901]

Jon - thanks alot for the freqs. Do you know if any of the UHF link freqs are still in use? IIRC, there was a UHF link up from HQ at Manmoth to Mt Washburn - and from Mt Washburn there were links to the various VHF hiband repeater sites.

I cannot find all of my notes - but this is what I have for UHF - based on the 1982 fed microfiche - 417.475 Mount Washburn KOF728 FXR (linking repeater) to Mammoth - 417.375 Mt Washburn KOF728 FXR to Mammoth - North links 417.375 & 411.675 - South links 411.775 & 417.475

The 1982 fiche also showed 166.975 with Fxs to Mt Washburn WY & Bunsen Peak WY. There is also 169.725 Bunsen Peak KOF726 50 watt link to Monmouth KOF700

If anyone clarify any of this info - it would answer a few questions that I have been mulling for a couple of decades.

It seems to me that the whole system can be very simple - one UHF channel (pair) to control the North repeater net - one UHF channel (pair) to control the South repeater net. With Mt Washburn accessing the various VHF hiband repeater sites via VHF hiband control stations. In other words, the Mt Washburn site allows Park HQ to access all of the repeaters in the Park.

Maybe the UHF links were converted to microwave links when the new West net was instituted???

Peter Sz

 

[icom1020]

This site sez that Yellowstone may have changed some freqs. Don't know if anyone has checked this website or not but it might fill in some gaps.

http://www.geocities.com/CapeCanaveral/9952/nps.htm

 

[kf7yn]

Peter,

The 411 and 417 MHz link from Mammoth to Washburn, and down to Mt Sheridan are still active. I am sure some of them changed when the West System was installed a few years ago, particularly the Bunsen Peak link which used to feed the western area of the park from Madison Jct to the West Gate when that area was on the North System. VHF comms were spotty from that area, it was often easier to hear the UHF link from Mammoth to Bunsen Peak.

Most of the callsigns on the geocities list are correct and the only frequency that is not correct is the 168.350 Common freq which does not show up on the Radio Shop template. I haven't heard that freq used in over 20 years of scanning.

The 1610 kHz T.I.S. stations are hit and miss, some are on the air, some are not.

If there are any sizeable fires, be sure to check the "victor" freqs VHF-1 122.925 (Air-Air and Air-Ground) and VHF-7 135.975 (Air Tankers) which have been active in the past.

One freq I forgot to mention is Federal Highways on 171.3625 which has been heard on this freq and the park North and South freqs in the past.

Also, Yellowstone Association Institute operates on 160.200 What I heard concerned wolf manangement in LaMar Valley.

 

[zerg901]

Thanks for your reply Jon. I miised your last post. I guess the Internet ate the Email. Peter Sz

 

[SCPD]

What about the reference in the above link to the fact that they have all disappeared and may be digital since October? Any truth to that?

 

[akuter]

Over the past year I have noticed a lot of their patrol cars at the local radio shops in Bozeman. I hope it's not all digtal.