[Amps] 4CX1000A for SSB??

Steve Thompson g8gsq at ic24.net
Tue May 3 05:33:52 EDT 2005


On Tuesday 03 May 2005 10:15, G3rzp at aol.com wrote:
> In a message dated 03/05/2005 10:06:12 GMT Standard Time, mm at plextek.co.uk
> writes:
>
> I've  remeasured the intermodulation characteristics of my  4CX1000A
> amplifier
>
>
> Do you use any negative feedback?  It looks pretty good to me, but it 
> would be interesting to drop in a 4CX1500B, which is supposedly more linear
> and  see if you can tell the difference. I know, the problem is getting
> one!
The results stack up fairly well with the 144MHz figures form DJ4GC (VHF 
Communications, 4/85). In Carsten's amp the 5th and 7th order drop off a bit 
faster.

Steve


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