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Anyone else getting choppy audio on Yolo Sheriff Main 154.800 PL 141.3?
Yolo Sheriff Audio
- Thread starter scannerboy02
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74596
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I can pick up 154.800 where I'm at (other side of the river, 15 miles South of Sacramento) and it sounds clear to me... I just notice it "clipping" at the end of the transmissions sometimes. I usually don't listen to Yolo Sheriff though...
sacscan
Member
Sometimes, but I blame that on possible RFI from my computer. I am using a BC898T with the antenna that came with it.
154.800
That's a channel I listen to all the time, but I do not program PL tones. The quality of what I receive depends on which scanner I am using and/or where that scanner is. My older PRO-10 & PRO-77 (crystal controlled) have no probs. My PRO-95s usually pick up just fine a well. But my PRO-97s do pick up all kinds of garbage - which I also usually blame on being near an emitting source. Sometimes I am able to eliminate the noise by switching on the attenuator.scannerboy02 said:
RolnCode3
Member
I listened on my Icom and it sounded alright. It's usually scratchy where I'm at, but audible and intelligible.
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Thanks everyone, for some reason I must be getting interference off something on me. For some reason at work and at home I am getting a lot of chop in the transmissions. I can understand what they are saying but it sounds like they are on a CHP extender. I also tried the two-way I used while in the aero squadron that was programmed by the Yolo radio techs and I had the same problem. The real strange thing is that it is only on 154.800 all other frequencies are loud and clear.
Well if it makes you feel any better, I have that kind of condition around here. Some frequencies on some scanners have interference/etc in some locations in my house. If I am in my (home) office next to the computers there are several freqs I have to lock out (154.800 is not one of them). Move to the other end of the house and it is totally different frequencies, if any.
The one frequency I get lots of background on is CHP Gold Base - 42.120. But it comes and goes with the sun. So when it is bad, I switch in the attenuator and that usually works. Other low band channels tend to sound like they're picking up skip too, but none (above 30 MHz) as bad as CHP Gold.
The one frequency I get lots of background on is CHP Gold Base - 42.120. But it comes and goes with the sun. So when it is bad, I switch in the attenuator and that usually works. Other low band channels tend to sound like they're picking up skip too, but none (above 30 MHz) as bad as CHP Gold.
selgaran said:
They "competed" GREEN for the most part, but they're still adjusting it. The radio tech came by our station and talked to us for a bit, he told me they were still adjusting the transmit sites. He said once they work out the problems with green, they will start working on yellow.
There should be transmit sites in Woodland (Station 2), Winters, West Sac and some mountain (not Vaca...Bald maybe? i forget)
And voters in Winters and West Sac...the main RX site is still in Woodland at YCCESA I think.
We had a lot of complaints about the simulcast system at first, but I'm noticing increased reception now.
Just a note of interest, they are putting out 300 watts at each of the transmit sites.
We pick this up in Mono County, believe it or not! Just south of the junction of U.S. 395 and CA 108 there is a stretch of highway on 395 of about 2 miles where it booms in and interferes with the Sheriff's Dept. in Mono County. They are also on 154.800
sacscan
Member
My cable modem puts out a nice dead carrier on that freq. Good thing I use CTCSS on all my scanners.gmclam said:
According to the database, Mono County doesn't use PL on that frequency. You would think they would use it to reduce the interference.Exsmokey said:
154.800 & 154.445 ....
Sometime over this past weekend I noticed that Yolo Sheriff Green (154.800) started sounding very bad. It does not seem to matter where I am or which scanner I use. It was so annoying I had to lock out the channel (at least for a while). I also noticed that Yolo Fire Green (154.445) was not sounding as clear as it had been, or as clear as other channels.
This seems to be the condition described earlier in this thread. Is anyone else experiencing this?
Sometime over this past weekend I noticed that Yolo Sheriff Green (154.800) started sounding very bad. It does not seem to matter where I am or which scanner I use. It was so annoying I had to lock out the channel (at least for a while). I also noticed that Yolo Fire Green (154.445) was not sounding as clear as it had been, or as clear as other channels.
This seems to be the condition described earlier in this thread. Is anyone else experiencing this?
Yes. There are still radio techs working on the system and I think we have all noticed it. The big thing they've been doing on 154.445 is paging all the stations/sirens and making sure everyone received the tones. Overall, I have noticed better audio/coverage lately than the "old" system, at least on 154.445. I haven't listened to 154.800 much lately, but next time I see one of the radio techs I'll ask about it.
They are doing the same thing to the SO channel that they did for the fire channel.
They are doing the same thing to the SO channel that they did for the fire channel.
sacscan said:
The database needs to be updated as each repeater transmits its input tone on the output frequency. I'm the one who needs to do this and I will do so as soon as I get some higher priority tasks completed. The input tone being transmitted on the output is done so that the repeater a mobile unit is using will be displayed on the dispatcher's console. It is not used on the field mobiles and handhelds as that would prevent an officer hearing traffic on another repeater as the system is designed to have many overlap areas, especially for reception. It is always easier to receive a repeater than it is transmit into one. If the mobile is not on scan it can still receive the other repeaters. In overlap areas it is possible for two mobiles to communicate even though they cannot key up the same repeater.
Of course this results in the system not being tone guarded and listening to Yolo County in that area is really the only disadvantage in the design. A repeater is located near this area, but it of course, does not receive Yolo County as that county uses a different input and the input is too weak to be picked up over the crest of the Sierra anyway. Mono County's input is 155.700. If Mono County had a system with 154.800 as the input, simultaneous reception of the repeater from both Yolo County and a local mobile unit would cause problems, even when tones with a wide frequency difference are used.
This is why we have coordination groups such as APCO (Association of Public safety Communications Officers) where different agencies can express concerns and conduct tests to determine if interference will result from the use proposed in a FCC license appplication. I don't know the history of the applications made by Mono and Yolo, but one possibility is that neither knew this small area of interference existed and the potential for same was not expected due to the terrain.
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