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Sacramento Valley Area Discussion - Local area specific discussion for Sacramento County and its outlying areas such as San Joaquin and Stanislaus Counties.

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Old 12-06-2017, 3:57 PM
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Default USFS LE frequency

Been hearing activity on 171.7875 for the last couple of days. Yesterday it was right after 0600, and again around 1000. Today, much more activity, all digital using PL's of 100 and 146.2 Both are full scale signals.
No ID heard. Some are long transmissions, does not appear to be a conversation. Testing? Anyone else
hearing this, or have any info?
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Old 12-06-2017, 4:10 PM
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I'm confused, you say all digital but digital does not use PL's, they use NAC codes.
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Old 12-06-2017, 7:40 PM
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All I know is that I'm hearing a digital xmission and reading PL's.
No analogue xmission, and I hear a squelch tail.
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Old 12-06-2017, 11:43 PM
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Maybe analog encryption ? Like DES-XL
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Old 12-07-2017, 5:52 AM
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Digital, yet PL's ? Sounds like your radio is programmed for Analog and is falsing the PL Tones during the Digital [P25] transmissions.,

Double check your settings and set this for P25
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Originally Posted by Norman View Post
Been hearing activity on 171.7875 for the last couple of days. Yesterday it was right after 0600, and again around 1000. Today, much more activity, all digital using PL's of 100 and 146.2 Both are full scale signals.
No ID heard. Some are long transmissions, does not appear to be a conversation. Testing? Anyone else
hearing this, or have any info?
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Old 01-10-2018, 11:59 PM
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I've been hearing this too from my remote receiver in Calaveras County at 4000 feet. The transmissions are about 10 seconds long with a repeater tail. Total white noise. 996XT is programmed for any audio mode so I would receive it if P25 in the clear. I haven't been able to catch the transmissions when I"m at the radio to see if "enc" shows up. There is just one burst every few hours or so and is strong in the Mother Lode. The audio sounds like a p25 transmission when listening in FM mode, but as I said, the scanner is programmed to receive all modes.
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Old 01-11-2018, 3:57 PM
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I heard one yesterday, PL 100 which would be Hawkins Peak for the ENF. That is located in Alpine County
SE/O Hwy 88 and 89 intersection. Maybe that's what you are hearing? Also a lot of testing on the Service Net for the ENF, both digital and analog. I can't receive P 25.
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Old 01-13-2018, 3:45 PM
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At about 1:20 this p.m. I heard a unit run a subject. This is the first time I have heard voice which was analog. I didn't get a location of the unit but the signal quality was similar to that of Alpine County at the remote reveiver, so prob is the site you suggest. STF quite active this holiday weekend with LE up at Lake Alpine using STF Admin Net.
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Old 01-13-2018, 6:49 PM
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I heard most all of that, female LE unit, quite busy today. The only LE freq activity that I heard came from the MNF. One LE unit also quite busy. The MNF is the only Forest that I hear using the LE on a regular basis.
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Old 01-14-2018, 12:08 PM
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Probably was from MNF as I have heard traffic from that forest before. Audio was poor tho. The site testing last week seemed much stronger..closer to ENF or STF.
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Old 01-16-2018, 11:24 AM
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I have the 171.7875 in the scancal.org live scanner, based in Red Bluff with great coverage of the eastern side of the MNF. It has just over a minute delay so if you are ever wondering if the traffic is coming from up north, you can quickly jump on that and listen for a few minutes to see if I hear it. Granted, during the winter I do have local law on there and the USFS law net isn't on any priority so it might get missed, especially a short transmission.
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Old 01-18-2018, 9:40 AM
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Thanks for the info. I think I"m only hearing MNF during ducting conditions. I have not heard any activity on LE since my report last week but monitor it daily.
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Old 01-18-2018, 12:15 PM
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That frequency has been dead since last Saturday's activity.
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Old 01-19-2018, 11:24 AM
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Just heard some traffic on LE - both unit and the dispatcher. Tuned in Norcal Scan feed and heard it there too..about the same quality signal. So must be MNF I"m hearing from my Arnold scanner.
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Old 01-19-2018, 4:06 PM
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It is now just after 2 pm, I just got home, been gone 3 hrs. The MNF ouputs a tone of 103.5 if you have a way of reading that.
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Old 01-28-2018, 1:11 PM
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Just heard "Mendocino" on R5 law giving a reg to a unit at "11:08". Good signal into Arnold. I thought it was local until I heard the dispatcher ID as Mendocino. This may have been the site that I was hearing being keyed up over the last few months. STF LE active this morning, but they have been on the Admin Net, as they usually are. I also heard Alpine County traffic, 153.80, this morning. Kirkwood Fire was calling Douglas County (which dispatches nights/weekends) saying he was on "Thimble Peak", which is due south of Kirkwood and about 50 miles NNE of Arnold. Any other agencies up on Thimble Peak?
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Old 01-28-2018, 4:46 PM
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The Forest LEs were pretty busy yesterday, not as much today. I did hear some of the Alpine traffic this am, propane leak? Re Thimble Peak, I think the person to ask would be gvranchosbill. He hangs out on
the Nevada Forum. Does a lot of monitoring up that way.
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Old 04-08-2018, 9:53 AM
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This Channel is going digital and encrypted per our radio tech.
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Old 04-08-2018, 1:29 PM
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Thanks for all the replies on all the threads Scot. Appreciated.
Norm.
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Old 04-27-2018, 2:13 PM
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Been hearing some testing of R5 Law from scanner on the STF. Very good NFM audio, so probably coming from the STF or ENF.

Last edited by Oakland_Tower; 04-27-2018 at 2:15 PM.. Reason: corrected name of channel.
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