Signal Amplifer for Uniden SDS 200

[Woodman75]

Is there such an animal and if so do they work for the price you pay.

 

[KB4MSZ]

By far, the best signal amplifier is a good antenna system.

 

[iMONITOR]

What's your situation that causes you to think you need a preamp and what are you hoping to gain?

 

[Ubbe]

Is there such an animal and if so do they work for the price you pay.

SDS scanners already has an inbuilt pre-amplifier that are cranked up as much as the SDR receiver can take without going into overload. Uniden set a gain value to it that fits most people. If you have no nearby transmitters then it might work to improve reception with an external amp, if you constantly see low signal strength values like -95dBm and worse.

I'm very impressed by amplifiers that use a PGA-103+ device. They are cheap but still have very low noise and can handle huge signals without going into overload mode. Most amplifiers have a gain of 15-20dB that must be attenuated before reaching a scanner or the scanner will actually loose reception and in severe cases go into overload where you hear a lot of signals mixing with each other at frequencies where they do not actually transmit. Using a variable attenuator that can be set between 0-20dB are perfect to be used before the signal reaches a scanner.

/Ubbe

 

[GMB951]

I just use a regular TV signal Amp and it works great on all my scanners from ebay

 

[Woodman75]

Thanks for your replys greatly appriciated.