WyoLink updates

k7kop

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Mar 23, 2004
Messages
53
I was in Cody for a day, and found site 225 which I think is 3 Mile. Control channel is 151.2725 Alternate control 151.2575
 

kdcarpen

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Nov 17, 2004
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9
Location
Denver
Laramie FG and Jelm Mountain

Austin4Wyo
I just got back from Laramie. On 600 Saturday I heard LFD on a trailer fire on River Side and a MS??? call on N. Fork Road a Roll Over. Today I heard MS??? on a I 80 run and at the same time MS??? go on a climbing accident at Vedavoo. So I think 600 is a good one for FG. Also I was getting all Sheriff Jelm mountain traffic on 610 both days.
 

Austin4Wyo

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Joined
Dec 1, 2007
Messages
147
Location
Laramie, WY
Austin4Wyo
I just got back from Laramie. On 600 Saturday I heard LFD on a trailer fire on River Side and a MS??? call on N. Fork Road a Roll Over. Today I heard MS??? on a I 80 run and at the same time MS??? go on a climbing accident at Vedavoo. So I think 600 is a good one for FG. Also I was getting all Sheriff Jelm mountain traffic on 610 both days.

Excellent find for the 610. I'll program that in when I get in tonight and see if I can confirm. I've got a few frequencies down here that I need to submit to the database anyway, so if I can add some talkgroups for Albany County to the WyoLink page, I'll hold off.
 

wyomingmedic

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Joined
Aug 17, 2008
Messages
534
Been getting hits on TG400 today that sound like Sweetwater County SO. I've linked to an audio recording that I grabbed over about the last hour.

Can anyone confirm this?

TG400.WAV - 8 min. 17 sec., 95 KB.

I am hearing that TG in wildcard mode here in Casper. Somebody must have drug the TG with them up to here. Sounds like Green River PD to me. Wich would make sense to it being SO. Last time I was driving through, I was getting a fair amount of traffic on the old analog SO freq (155.415)

WM
 
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Austin4Wyo

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Joined
Dec 1, 2007
Messages
147
Location
Laramie, WY
According to an earlier post, wyomedic, it being GR PD would make sense, at least if they're conforming to the new plan assigning the first digit of talkgroups to counties that was described earlier in the thread. That would also be consistent with 600 being Fireground here in Laramie and 610 being the Jelm Peak repeater, though I've had no hits on the latter.

I'm guessing that 610, if it's active (and I'm not doubting you, kdcarpen, just saying I haven't had any hits) is likely being simulcast on the old conventional frequency as well.
 

W7LES

Member
Joined
Nov 13, 2008
Messages
40
Location
Cheyenne WY
Interesting GRE600 scanner problem on WyoLink

Interesting GRE600 scanner problem on WyoLink

This whole WyoLink thread got started awhile back when I was tasked to find a scanner that would work on WyoLink. For a number of reasons the choice at the time turned out to be the Radio Shack PRO-96 with the Win96 shareware. That setup worked well until RS decided to cancel the PRO-96, forcing a new scanner selection.

After meeting & talking with the GRE folks at Dayton, I’ve been playing with the GRE 500 portable and GRE 600 base/mobile scanners with the Win500 shareware. These units seem to work pretty well, the only drawback is the limited capacity for control channels. Our users will have to transfer V-scanners from memory to active use when traveling to different areas; the units work fine for a stationary user in one area.

This post is to identify an interesting problem that came up with the 600 scanner, what it was doing, what caused it and what the solution turned out to be. First, a little background.

A trunking system tells the user radios to switch to a voice channel when their selected talkgroup becomes active. The command is sent in 1 of 2 formats, depending on the frequency band that the trunking system is using. In the 800, 700 and UHF bandplans, the radio channel pairs use a fixed channel spacing between channels, and also use a fixed frequency split the receive and transmit frequencies that make up a channel. With the spacings and the splits fixed, the system can issue a simple Implicit command for the radios to move up (or down) a certain number of channels to get to the voice channel. The radio already knows the frequencies for the channel it is moving to, so the Implicit command is simple, quick and efficient to use. It’s called Implicit because telling the radio what channel number to use Implies what frequencies to use.

This situation does not apply on the VHF band. There is no band plan, no fixed spacing and no standard frequency split. When a radio is commanded to a voice channel in VHF, the trunking system must Explicitly tell the radio which receive and transmit frequency to use for the voice channel. This is the reason for all of the channel plan lines required for a VHF trunking system; most other bands generally get by with only 1 line.

So, what happened with the GRE 600 scanner in our VHF system? I noticed that, when receiving a voice talkgroup on a particular site, about 25% of the time there would be no audio from the speaker and the front panel LED would be blinking instead of steady as programmed. The display was showing the talkgroup label as programmed, just no sound. Pressing the Scan button usually resulted in the scanner picking up the same talkgroup just fine on another tower, so the talkgroup and the system are not the problem.

The tip-off was that, when the problem was occurring, the scanner display was showing that the scanner was locking to a frequency that was not in use at the “problem” site. So the question became, “What would make the scanner go to a non-existent frequency in a VHF Explicit trunking system?” Some of you smart folks with scanner experience probably already know the answer. There was a typo error in the first entry space in the last channel plan line; 2 digits had been transposed in the programming. Once this error was fixed, all was well.

In this particular case, the scanner was programmed for P25 Manual and was referencing the manually entered channel plan table. The problem might not have occurred if the scanner had been set to P25 Auto where the scanner loads the channel plan table information automatically from the trunking system itself. It also probably would not have happened on a trunking system in a band other than VHF.

Regards,

Larry
 

KF7BR

Member
Joined
Aug 15, 2010
Messages
5
Gre 600

Larry:
Thanks for the info, recently purchased a GRE 600 and am getting aquainted with it. My initial search was with Spectrum Sweeper. It did not hit on the Wyolink system in Wheatland, Virgin Hill, until I actually programmed that site in. Torrington recently went digital but scanning has only received dead air. I know they are on the Wyolink system, but also on local frequencies, maybe they went to 800mhz for their local traffic. Not sure, Ideas?? Feel free to use my email address from a note I sent to you a while back. Thanks
KF7BR
 

wyomingmedic

Member
Joined
Aug 17, 2008
Messages
534
KF7BR,

I can confirm that Wheatland and Lusk are both on and using wyolink. I just returned from that area yesterday after a vacation in Colorado. I was using a radio incapable of displaying TGs, so I did not catch any, but both city's PD units were active. As well as the SO and of course WHP.

And as far as I know, there are NO 800mhz systems in that area. Just conventional and wyolink.

73

WM
 
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W7LES

Member
Joined
Nov 13, 2008
Messages
40
Location
Cheyenne WY
WyoLink 800

Hi Don:

WM is correct, no 800 in your area. WyoLink is tied to the 800 systems in Cheyenne and Gillette, and is planned to tie to the 800 system in Casper, or may already be. The inter-tie is pretty slick - the 800 sites become straight WyoLink sites, tied directly to the system master controller system. The master doesn't know and doesn't care what RF band the site at WXYZ location is on - all the master site knows is that it is talking data to radios over a control channel.

What really is slick about this: put an 800 radio in the coverage area of an 800 tower and a VHF radio anywhere in the state on the same talkgroup, and they will intercommunicate seamlessly and automatically. No links, no crosspatches, no nothing - totally transparent to the radio users. The first time I saw this in real time on the Cheyenne sites - and every time since - I just marvel at how smoothly & well it works.

The only drawback: if the 800 user leaves his 800 coverage area, he's off the system - whereas the VHF users have full statewide coverage.

Regards,

Larry
 

whp3310

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Joined
Jan 13, 2009
Messages
57
Location
Buffalo, Wy
800 System in Wyoming and on Wyolink

The only two known 800 Systems that are active in the State of Wyoming are Casper and Cheyenne. Cheyenne Is tied into the wyolink system just within the Cheyenne area.

Gillette is contemplating of having it's PD go to an 800 system and then have it tied into the wyolink system in later years.

Caspers 800 system is NOT on the wyolink network yet, but I bet they will slowly make the migration over in later years.

These are the systems that I Know of. If their are more areas running 800 Systems or are thinking of having 800 systems tied into Wyolink let Us know.

Thank you
 

W7LES

Member
Joined
Nov 13, 2008
Messages
40
Location
Cheyenne WY
Gillette 800 sites

Just a short note to confirm that the 2 Gillette 800 sites - one downtown and the other south of town - are up and operating as WyoLink sites with the same smooth & seamless interoperation to & from VHF as the Cheyenne 800 site.

Larry W7LES
 

theaton

Member N7VU
Database Admin
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Sep 17, 2004
Messages
827
Location
Moab, Utah
Just a short note to confirm that the 2 Gillette 800 sites - one downtown and the other south of town - are up and operating as WyoLink sites with the same smooth & seamless interoperation to & from VHF as the Cheyenne 800 site.

Larry W7LES

Great! I wish I'd known that when I was in that area last week. Please submit site numbers and frequencies when you get a chance.

-Tim
 

W7LES

Member
Joined
Nov 13, 2008
Messages
40
Location
Cheyenne WY
GRE 600 questions

KF7BR:

Don, send me a PM about the GRE 600, I seem to have lost my previous messages.

73,

Larry W7LES
 

ICOMTech

Member
Joined
Nov 15, 2006
Messages
4
Location
Lander,.WY.,82520
WYLINK Great Info,,

Well in meeting W7LES and WYDOT experts,Great people,lots of good info.,
I,ve been in the Distance woodwork hi,hi,
I,m an active HAM -N7HYF,Technician in my business world in Wyoming,Ive Add,d for the first time
Federal logs to Theaton-Admin person,,I,ve logged 4,000 frequencys ,plus been placing DSTAR/P25
into our active WYAME Amateur radio club-Fremont County ,.WY.,
Been working with ICOM/KENWOOD/YAESU Dealers,Active ICOM Dealer Since 1991
MARS-Comm,s Since 1987,.and other FCC,PCIA,NABER ,stuff
I will try 2 post,meet new technicians,and try adding info about Uniden Scanners,ICOM-Advanced
Communications Receivers,to Radio Reference,,,,
You don,t want 2Know HOW MUCH GEAR I Use:
3-Uniden BCD996XT,s
1-Uniden BCD396T
1-ICOM R2500,Loaded!
1-ICOM R8500
6-Pro Realistic Scanners,. And 65 other ICOM ,Uniden,and two way systems,,
New purchases ICOM-IC7000,s ,,Icom 706MK2G,s and looking at ICOM IC9100H Dream radio,
73,s ICOMtech-N7HYF/WY
 

KG7JEV

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Premium Subscriber
Joined
Jan 23, 2006
Messages
128
Location
Cheyenne, WY
I'm heaing what sounds like LE on 5732 on Cheyenne South. Ideas? No identifiers on the radio. Sounds like a secret squirrel op tracking someone.
 

KG7JEV

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Premium Subscriber
Joined
Jan 23, 2006
Messages
128
Location
Cheyenne, WY
The only two known 800 Systems that are active in the State of Wyoming are Casper and Cheyenne. Cheyenne Is tied into the wyolink system just within the Cheyenne area.

Gillette is contemplating of having it's PD go to an 800 system and then have it tied into the wyolink system in later years.

Caspers 800 system is NOT on the wyolink network yet, but I bet they will slowly make the migration over in later years.

These are the systems that I Know of. If their are more areas running 800 Systems or are thinking of having 800 systems tied into Wyolink let Us know.

Thank you

I heard a while back that Casper PD was encrypted. Will this be the case when they go on Wyolink?
 

wyomingmedic

Member
Joined
Aug 17, 2008
Messages
534
I'm heaing what sounds like LE on 5732 on Cheyenne South. Ideas? No identifiers on the radio. Sounds like a secret squirrel op tracking someone.

I have heard some traffic in the 57** range here in Casper that is like that. My intuition ;) tells me it is DCI doing a bust.

And YES, Casper PD is encrypted and they will be when they go to WyoLink. Casper fire and EMS will still be open.

WM
 

WyoWabbit

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Joined
Jun 19, 2007
Messages
138
Location
Casper, WY
ODD...I sent updates to the WyoLink database, and they are there, but the Wyoming state map did not turn green!!! Check out the database if you haven't in a while for updates. Tom
 
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