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Title: A night of class on 75 Post by: WA1GFZ on June 05, 2008, 10:03:23 PM Tonight I was on 75 with HPSDR and class A amp
Jim WA1UQM running 810 modulators so must have been close to class B Tom Vu running a 4-1000A in class C Jay W1VD running class D Later Bob K1KBW doing Class E Title: Re: A night of class on 75 Post by: W1VD on June 06, 2008, 07:20:57 PM The HPSDR transmitter sounded FB on AM - better than your Viker CDC ... SSB sounded good as well. Probably first time I've heard an SSB transmitter with third order products > 50 dB down! Look forward to hearing it driving a BIG linear.
Title: Re: A night of class on 75 Post by: WA1GFZ on June 06, 2008, 08:57:04 PM TNX Jay....remember the EV664 I bought at Deerfield. I decided to use it on the sdr stuff. Well you were only hearing about -40 DB last night. Not enough power supply or heatsink yet. It does look sice on the spectrum display. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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