Re: LF: G0MRF amp keying with DDS exciter

[Warren K2ORS/WD2XGJ <k2ors@comcast.net>]

Dex,

     I have the same situation here. I run a G0MRF TX with an external dds 
synthesizer and get pretty substantial key clicks. Although I haven't 
implemented it yet, it may be helpful to key the HT supply to the PA with a 
shaped waveform.
There is a circuit for doing this on Dave Pick's website:

http://www.wireless.org.uk/circuits2.htm#PSU

--
73 Warren K2ORS/WD2XGJ
FN42hi


> I have noticed some nasty keying spikes while keying the G0MRF 300 watt 
> amp with the ZL1BPU exciter.  I know this is probably to be expected by 
> keying the input signal to the amp instead of the amp's keying circuit.  
> Anyone have an idea for how to make this exciter amp combination key better?
> Tnx,
> Dex