Originally Posted by cpetraglia
I have a simple question. When using a pre-amp for 800MHZ P25 Phase I digital system, should it be a 'Narrow Band' or a 'Wide Band'? ARR sells Freq. specific pre-amps (somewhat pricey) in both types.
In my case, my P25 system is in the 854 to 860 range. They make an 806 to 896 preamp. I am thinking the band pass rejection has to help, I just want to make sure I get the right model.
Without knowing how much is too much......................
There are two 'Mini-Circuits ZQL-900MLNW 800-900 MHz RF Amplifiers'
available on ebay now for $89.99 each with free shipping.
They sell new for $249. http://www.minicircuits.com/pdfs/ZQL-900MLNW+.pdf
I've found them to be better than 'hobby' type amps.
RF amplifier rated for use 800-900MHz (datasheet shows performance 750MHz-1GHz)
Gain: 22dB min.
Very low noise figure, 1.7dB max.
High IP3, +41dBm typ.
Rugged, shielded case
RF connectors: SMA (female)
VSWR: 1.3:1 input, 1.4:1 output, typ.
Power: 15VDC 200mA (max)