Windfarmer
Member
Hi all ! we have Motorola cm200d Two way radios VHF and when I pick up the frequency with a whistler TRX 1 there is just white noise ;am I doing something wrong or is the TRX 1 not capable of picking up that traffic ?
Trx 1
- Thread starter Windfarmer
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Is the modulation set to FM? If it is set to WFM or AM you might just hear white noise.
Windfarmer
Member
The mode is set to Auto and squelch set to Search .
Are you certain of the frequency? If you are too close to the transmitter it may be overwhelming the receiver in the scanner.
Windfarmer
Member
Yes , we are digital and on color code 1 ,would that have anything to do with it it ?
Digital vs. analog could definitely explain the issue. Depending upon the type of digital modulation being used it may sound just like white noise if the scanner cannot decode it.
You may want to check that "DG Mode" is set to Auto.
You may want to check that "DG Mode" is set to Auto.
Windfarmer
Member
DG Mode is also set to Auto . so maybe the Whistler TRX1 can not decode it
The FCC license may reveal more about the type of digital modulation being used and whether the TRX1 is capable of decoding it.
FCC search page:
FCC search page:
Windfarmer
Member
Ok I will have to do more research then .
Here are some good details regarding the FCC Emission Designator once you locate the license.
Emission Designator - The RadioReference Wiki
Windfarmer
Member
Its a little over my head .
Is what you're trying to listen to listed in the datatase & if so could you please provide the DB link?
If you provide the frequency and city/state you are located in we may be able to assist.
Windfarmer
Member
Can i reply privately
Yes, you can send me a private message. Just click on ScannerSK on the left and "start conversation" to send a private message.
The two emission designators on the FCC license are 11K2F3E and 7K60FXE.
The second one (7K60FXE) lists to "2-slot DMR (Motorola MOTOTRBO) TDMA voice" on the Wiki emission designator reference page.
The Wiki on the TRX-1 states it can decode MOTOTRBO signals however not trunktrack these signals.
wiki.radioreference.com
On the above Wiki page it states the following:
"NOTE: GRE / RS / Whistler scanners will not trunk track this mode; they will decode the mode, show TG and slot information"
"Note that Whistler scanners cannot trunktrack MOTOTRBO systems. Whistler never bought the licenses, which is why the upgrades are free. The best these scanners can do is to decode the audio. This may be sufficient on systems that aren't too busy, but for busier systems, this is a serious limitation."
I would download the upgrade to decode DMR signals if you have not already done so. It appears to be free. This is about the best I can ascertain. Possibly another member can offer more assistance from here on how to program the SDS100 to receive MOTOTRBO signals.
The second one (7K60FXE) lists to "2-slot DMR (Motorola MOTOTRBO) TDMA voice" on the Wiki emission designator reference page.
The Wiki on the TRX-1 states it can decode MOTOTRBO signals however not trunktrack these signals.
TRX-1 - The RadioReference Wiki
On the above Wiki page it states the following:
"NOTE: GRE / RS / Whistler scanners will not trunk track this mode; they will decode the mode, show TG and slot information"
"Note that Whistler scanners cannot trunktrack MOTOTRBO systems. Whistler never bought the licenses, which is why the upgrades are free. The best these scanners can do is to decode the audio. This may be sufficient on systems that aren't too busy, but for busier systems, this is a serious limitation."
I would download the upgrade to decode DMR signals if you have not already done so. It appears to be free. This is about the best I can ascertain. Possibly another member can offer more assistance from here on how to program the SDS100 to receive MOTOTRBO signals.
tvengr
Well Known Member
The TRX-1 can receive DMR out of the box. There is no upgrade required. It cannot trunk track DMR trunked systems but will still decode unencrypted DMR transmissions.
Remon
Newbie
If you set the mode to "auto" it can only receive analog and P25. For DMR you have to program it as DMR.
Exception here is the "tune mode", which can receive all supported modes.
Exception here is the "tune mode", which can receive all supported modes.
Windfarmer
Member
OK that is where I messed up ,it was on auto ,I will switch it over to DMR
Windfarmer
Member
Would I leave the color code and time slot setting on "Any" though IF I am not sure on color code ?
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