On Tuesday 03 May 2005 10:15, G3rzp@aol.com wrote:
> In a message dated 03/05/2005 10:06:12 GMT Standard Time, mm@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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