Unknown trunk control channels
 

hello all.

I'm pretty new to this newsgroup but I've been casually using scanners
for many years. I recently obtained a BC895XLT and I like it a lot.

Here's my question.

While searching, I've found some Motorola type II control channels.. I
inputted them into the scanner but they're pretty useless without the
rest of the frequencies that make-up that system.

Is there any hard-and-fast way of finding those frequencies? Also,
I've scoured the net to no avail.

I am in the Memphis, TN area and the control channel frequencies in
question a

856.8625
855.5625

I noticed that all the trunked systems I can scan seem to follow a
convention, where the control channel is the "last" in the chain,
along a sequential list of frequencies... for example, 85x.2125 .. X
can be 5 - 9, and then 860.2125 might be the control channel for that.
So, I tried blindly entering frequencies like that and I managed to
partially clear-up this mystery with another system.. but this method
hasn't worked with these two.

Does anyone have any suggestions or information? My aging scanner is
getting left out in the cold more and more as the older trunked
systems it can monitor are replaced with ones it can't, so I would
really love to monitor every possible system out there in the short
time I have left! :)

Thanks in advance for any help.

Kevin

I don't know much about the "B" word scanners. I am a Realistic fan to the
bone. Realistic's Pro-93,94,95,96 models require that you only input the
control channels (oh yes, you must also input the fleet map) and operate in the
'open' mode to get all talkgroups you need.
Er G.
education CANNOT buy common sense

According to the FCC Search page at

http://wireless2.fcc.gov/UlsApp/UlsS...chAdvanced.jsp

both freqs are Fed Ex, which has a huge operation in Memphis.

Current Uniden and RS trunktrackers are capable of following most
trunked systems on 800 MHz. with only the data channel known, the voice
channels will be deciphered by the radio.

You can also use older non trunking scanners with a program called
Trunker, this deciphers the control channel and can even send a second
scanner to the voice channel. This does require a discriminator tap on
the "Data" radio and a computer control feature on the "Voice" radio.




In article ,
Tempest wrote:

hello all.

I'm pretty new to this newsgroup but I've been casually using scanners
for many years. I recently obtained a BC895XLT and I like it a lot.

Here's my question.

While searching, I've found some Motorola type II control channels.. I
inputted them into the scanner but they're pretty useless without the
rest of the frequencies that make-up that system.

Is there any hard-and-fast way of finding those frequencies? Also,
I've scoured the net to no avail.

I am in the Memphis, TN area and the control channel frequencies in
question a

856.8625
855.5625

I noticed that all the trunked systems I can scan seem to follow a
convention, where the control channel is the "last" in the chain,
along a sequential list of frequencies... for example, 85x.2125 .. X
can be 5 - 9, and then 860.2125 might be the control channel for that.
So, I tried blindly entering frequencies like that and I managed to
partially clear-up this mystery with another system.. but this method
hasn't worked with these two.

Does anyone have any suggestions or information? My aging scanner is
getting left out in the cold more and more as the older trunked
systems it can monitor are replaced with ones it can't, so I would
really love to monitor every possible system out there in the short
time I have left! :)

Thanks in advance for any help.

Kevin

I checked another source

http://www.radioreference.com

Did not give me much there. I do confirm its a FedEx freq so we need find
the rest of them in the TRS then from there try and find the talk groups.


"Tempest" wrote in message
...

hello all.

I'm pretty new to this newsgroup but I've been casually using scanners
for many years. I recently obtained a BC895XLT and I like it a lot.

Here's my question.

While searching, I've found some Motorola type II control channels.. I
inputted them into the scanner but they're pretty useless without the
rest of the frequencies that make-up that system.

Is there any hard-and-fast way of finding those frequencies? Also,
I've scoured the net to no avail.

I am in the Memphis, TN area and the control channel frequencies in
question a

856.8625
855.5625

I noticed that all the trunked systems I can scan seem to follow a
convention, where the control channel is the "last" in the chain,
along a sequential list of frequencies... for example, 85x.2125 .. X
can be 5 - 9, and then 860.2125 might be the control channel for that.
So, I tried blindly entering frequencies like that and I managed to
partially clear-up this mystery with another system.. but this method
hasn't worked with these two.

Does anyone have any suggestions or information? My aging scanner is
getting left out in the cold more and more as the older trunked
systems it can monitor are replaced with ones it can't, so I would
really love to monitor every possible system out there in the short
time I have left! :)

Thanks in advance for any help.

Kevin

Hmm, weird. With my 895XLT, if I input the control freq and begin
searching it, I never see any activity. I was under the impression
that allthe various frequencies on the system have to be manually
loaded.

Anyway, I appreciate the valuable information, all!


On Fri, 10 Sep 2004 11:19:52 GMT, "Rich Carlson, N9JIG"
wrote:

According to the FCC Search page at

http://wireless2.fcc.gov/UlsApp/UlsS...chAdvanced.jsp

both freqs are Fed Ex, which has a huge operation in Memphis.

Current Uniden and RS trunktrackers are capable of following most
trunked systems on 800 MHz. with only the data channel known, the voice
channels will be deciphered by the radio.

You can also use older non trunking scanners with a program called
Trunker, this deciphers the control channel and can even send a second
scanner to the voice channel. This does require a discriminator tap on
the "Data" radio and a computer control feature on the "Voice" radio.

The BC895 is an older model, it does not have Control Channel Only
trunktracking. The BC780, 785, 796, 250 and 296 all do, as does the
PRO96.

On non-control channel only radios (such as your BC895) you do need to
enter all the system freqs.

Look up the call sign on the FCC web page to get the rest of the system
freqs. They do not need be in any particular order. Ignore anything
below 851 MHz., as these are mobile inputs.


In article ,
Tempest wrote:

Hmm, weird. With my 895XLT, if I input the control freq and begin
searching it, I never see any activity. I was under the impression
that allthe various frequencies on the system have to be manually
loaded.

Anyway, I appreciate the valuable information, all!


On Fri, 10 Sep 2004 11:19:52 GMT, "Rich Carlson, N9JIG"
wrote:

According to the FCC Search page at

http://wireless2.fcc.gov/UlsApp/UlsS...chAdvanced.jsp

both freqs are Fed Ex, which has a huge operation in Memphis.

Current Uniden and RS trunktrackers are capable of following most
trunked systems on 800 MHz. with only the data channel known, the voice
channels will be deciphered by the radio.

You can also use older non trunking scanners with a program called
Trunker, this deciphers the control channel and can even send a second
scanner to the voice channel. This does require a discriminator tap on
the "Data" radio and a computer control feature on the "Voice" radio.

Try putting your scanner in the control channel only mode. Then the
scanner will find the missing Frequs.



hello all.

I'm pretty new to this newsgroup but I've been casually using scanners
for many years. I recently obtained a BC895XLT and I like it a lot.

Here's my question.

While searching, I've found some Motorola type II control channels.. I
inputted them into the scanner but they're pretty useless without the
rest of the frequencies that make-up that system.

Is there any hard-and-fast way of finding those frequencies? Also,
I've scoured the net to no avail.

I am in the Memphis, TN area and the control channel frequencies in
question a

856.8625
855.5625

I noticed that all the trunked systems I can scan seem to follow a
convention, where the control channel is the "last" in the chain,
along a sequential list of frequencies... for example, 85x.2125 .. X
can be 5 - 9, and then 860.2125 might be the control channel for that.
So, I tried blindly entering frequencies like that and I managed to
partially clear-up this mystery with another system.. but this method
hasn't worked with these two.

Does anyone have any suggestions or information? My aging scanner is
getting left out in the cold more and more as the older trunked
systems it can monitor are replaced with ones it can't, so I would
really love to monitor every possible system out there in the short
time I have left! :)

Thanks in advance for any help.

Kevin