Dummy frequencies

[OmensEdge]

Yeah. I'm looking for some of these to place in between my control channels on my Pro-96. I was using 50.0000 in between each one and I wasn't picking up any noise on them. It was working perfect. Today when I reprogrammed my scanner, I have to have the squelch way back for the frequencies to clear. If I have the squelch knob where I usually have it, it will always stop on the closest dummy frequency and I'll have lots of static. I don't know why it wasn't a problem before. Maybe it's the change in weather.

Anyway, does anyone know a particular range or dummy frequency I could put in between my control channels that my scanner would scan, but not pick up on? I don't know what would be more appropriate since I don't really have much knowledge as far as frequency ranges go and what the're used for.

Thanks.

 

[Jim41]

Dummy Frequencies

Yeah. I'm looking for some of these to place in between my control channels on my Pro-96. I was using 50.0000 in between each one and I wasn't picking up any noise on them. It was working perfect. Today when I reprogrammed my scanner, I have to have the squelch way back for the frequencies to clear. If I have the squelch knob where I usually have it, it will always stop on the closest dummy frequency and I'll have lots of static. I don't know why it wasn't a problem before. Maybe it's the change in weather.

Anyway, does anyone know a particular range or dummy frequency I could put in between my control channels that my scanner would scan, but not pick up on? I don't know what would be more appropriate since I don't really have much knowledge as far as frequency ranges go and what the're used for.

Thanks.

For these Dummy Frequencies stay away from VHF-LO band frequencies. They are more susceptible to noise and man-made interference.

Suggest you look for and use a clear frequency in your area in the UHF band or the 800 MHz band.

 

[morfis]

Yeah. I'm looking for some of these to place in between my control channels on my Pro-96. I was using 50.0000 in between each one and I wasn't picking up any noise on them. It was working perfect. Today when I reprogrammed my scanner, I have to have the squelch way back for the frequencies to clear. If I have the squelch knob where I usually have it, it will always stop on the closest dummy frequency and I'll have lots of static. I don't know why it wasn't a problem before. Maybe it's the change in weather.

Anyway, does anyone know a particular range or dummy frequency I could put in between my control channels that my scanner would scan, but not pick up on? I don't know what would be more appropriate since I don't really have much knowledge as far as frequency ranges go and what the're used for.

Thanks.

In Europe 406.0000 is deliberately quiet so might also be worth a try over there.

 

[W4KRR]

As Jim suggested, stay away from VHF low band, but the dummy frequency can be any frequency you want, as long as there's no traffic or interference on it. Just try different frequencies until you find one that works for you.

 

[loumaag]

My personal choice for that purpose is 1200 MHz.

 

[robbinsj2]

(Whoops, just noticed my suggestion of putting PL on it may ruin its purpose; never mind.)

 

[Bucko]

My personal choice for that purpose is 1200 MHz.

That is what I use or 1300mz..........

 

[K5MAR]

Humor me here. Why do you want to put dummy frequencies between control channels, can't you just leave them empty? Is this something unique to the 96? I've never done that with my 92's or 780's and 796.

Tnx,
Mark S.

 

[seamusg]

Humor me here. Why do you want to put dummy frequencies between control channels, can't you just leave them empty? Is this something unique to the 96? I've never done that with my 92's or 780's and 796.

Tnx,
Mark S.

You can put a dummy frequency between control channels on the Pro96/2096 to receive more than one site on a MOT system in a bank. This will not work on a Uniden scanner, only GRE.

 

[fmon]

By Mark E: I've never done that with my 92's

The Pro-92 is a GRE but can not scan CC only.

I use 1300.0000 also

 

[OmensEdge]

Thanks for the suggestions, guys. I'll try 1300 later today.

 

[gmclam]

What's the difference between leaving blank channels and an actual programmed frequency between the control channels?

In my PRO-95 I have every channel programmed for the trunked system. First all of the freqs for site 1, then all of the freqs for site 2. This effectively leaves all of the voice channels as dummys between the two active control channels.

Comments?

 

[Bucko]

With my 96 and 2096's they will not track the CC's at different sites correctly without a legit FM freq between them, I have tried both ways and the blank slot does not work correctly for me. Two 2096's setting side by side, one with dummies and one with blanks you soon see the difference.

 

[mciupa]

To read about this in depth ,( if you are so inclined )there was a "stickied" thread on this very topic.

http://www.radioreference.com/forums/showthread.php?t=13495

 

[jim202]

Blank channels in a scanner

Any radio with a VCO takes a finite amount of time to settle on the new
frequency. If the frequency change is very large, it takes longer for the
VCO to settle down on the new channel. This amount of time will effect
the quality of the reception.

I would recomend that a frequency closer to what your trying to listen to
be used for a blank channel. This settle time for the VCO might not seem
like much to the average person, but it can make the difference in hearing
a weak signal and not getting anything at all. If you do hear anything it
might be all broken up or badly distorted at the very begining to the transmission.