SDS100/SDS200: FM or NFM

[rocky28965]

I have changed my USDS100 to FM instead of NFM.
Made a big difference to the audio quality.
Not quite as scratchy now.

Was wondering about my UBCD3600XLT.
It's currently on NFM but still sounds better than the USDS100.
Would it be better or worse on FM. Or just set it to auto and let it decide.

 

[Ubbe]

It's the SDS scanners that have issues and would benefit the most from a wider bandwidth setting, as well as using different filter and IFX settings to try and improve it's receiver performance. Not so much in other "normal" scanners, that could actually perform better going from FM to NFM. Auto are not actually that, a better word would be "default" as it is using the default value from its bandplan setting.

/Ubbe

 

[rocky28965]

My SDS200e is on NFM, would it be better on FM?

 

[buddrousa]

The simple answer is try it and see you are not going to hurt the scanner.

 

[nd5y]

Or just set it to auto and let it decide.

That's not what "auto" bandwidth does on any scanner. All it does is set the mode according to a band plan, not the actual received signal.

 

[JoeBearcat]

My SDS200e is on NFM, would it be better on FM?

Set it for the mode of the transmitter you are monitoring.

 

[rocky28965]

Set it for the mode of the transmitter you are monitoring.

That sounds like the way to go, but how do I establish what mode the transmitter is on.

 

[JoeBearcat]

You can ask other people in your area or ask on the RR forums.

 

[bill4long]

I have changed my USDS100 to FM instead of NFM.
Made a big difference to the audio quality.
Not quite as scratchy now.

Was wondering about my UBCD3600XLT.
It's currently on NFM but still sounds better than the USDS100.
Would it be better or worse on FM. Or just set it to auto and let it decide.

Does NZ public safety and (equivalent of) land-mobile use FM or NFM in general?

 

[rocky28965]

Does NZ public safety and (equivalent of) land-mobile use FM or NFM in general?

If you are asking me, I am still looking for that answer.
In the meantime, I have changed all my radios to FM.

 

[buddrousa]

Which sounds the best to you?

 

[rocky28965]

The only noticeable difference is with the sds100

 

[Kiniutech]

(Does NZ public safety and (equivalent of) land-mobile use FM or NFM in general?)

It depends
NZ Analog Police use both Frequencies FM and NFM
still in use are, 75.xxx > FM linked with Fire and 485.xxx > NFM
Ambulance 141.xxx > FM