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gm300 maxtrac power amp stand alone usa
Posted: Sat Sep 01, 2012 9:01 am
by shadowman
hi all i have a project going on here and im trying to work out how to run a pa from a gm300 as a stand alone tx boost amp for a low rf power device that needs some more grunt... can anyone tell me how many milliwatts the pa will need to drive and what else i will need to do to run it such as bias voltage and what pin for the bias? many thanks all ! cheers
Re: gm300 maxtrac power amp stand alone usa
Posted: Thu Sep 06, 2012 11:52 pm
by shadowman
anyone??? i know this has been done before ...
Re: gm300 maxtrac power amp stand alone usa
Posted: Fri Sep 07, 2012 5:43 am
by kb4mdz
Just off the top of my head, I think the maxtrac/radius/gm300 line put out about +20dBm to the PA; as far as power control, might be able to do a simple voltage divider to provide the control voltage, or if that doesn't work, an op-amp buffer, maybe with a pot to set the output to whatever level you want.
Looks like a time to read the manual, anyway.