Re: QSX 10W HF Linear PA kit


On Tue, Oct 9, 2018 at 07:54 AM, Henning Weddig wrote:
oncerning the UBITX: the PA delivers 26 dB of gain, so for 10 W output the input power for the PA is +40 dBm - 26 dB = +14 dBm This power can be easily achieved with only one MMIC e.g. one of the GALI amps--- or a discrete verions (BS170)?

You need more gain than that from the mixer to output.  About 30db to 36db.  Also the driver need to deliver +14dbm but I'd
strongly suggest enough headroom to hit 20dbm.  You want to hit 10W but not have a stage limiting at 10W.


Join to automatically receive all group messages.