SDS100: 150MHz noise

Kris1359

Kris1359
Premium Subscriber
Joined
May 18, 2021
Messages
51
Location
South Bend, IN
My fire dept is 150MHz. Is there any way I can filter out the noise so they come in clear with out bothering any of the other channels?
 

Kris1359

Kris1359
Premium Subscriber
Joined
May 18, 2021
Messages
51
Location
South Bend, IN
Not sure what’s causing it. That’s the only thing I’m having problems with. It’s noise like it’s might be a weak signal. It just sounds scratchy.
 

Ubbe

Member
Joined
Sep 8, 2006
Messages
6,098
Location
Stockholm, Sweden
My fire dept is 150MHz. Is there any way I can filter out the noise so they come in clear with out bothering any of the other channels?
The SDS100 receives signals with good strength several 100KHz off frequency and you might have some pager signals that interfere. The exact offset depend of the filter settings, Normal, Invert and so on and also IFX, so try that first.

If you receive your 150MHz channel with a signal strength of -80dBm or stronger you can enable the attenuator on that frequency to also reduce the signal strength of the interfering signal .

/Ubbe
 

smithken

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Premium Subscriber
Joined
Dec 19, 2002
Messages
251
Location
Michigan
According to the database there is nothing on 150 MHz in Indiana. Also, according to the database, South Bend Fire Dispatch is on 154.19 MHz.
 

werinshades

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Premium Subscriber
Joined
Jan 21, 2002
Messages
3,906
Location
Chicago , IL
According to the database there is nothing on 150 MHz in Indiana. Also, according to the database, South Bend Fire Dispatch is on 154.19 MHz.
On Safe-T statewide system under St. Joseph County, I see South Bend Fire talkgroups.
 
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