[Elecraft] K2/100 Flat topping on 30m?

Thu Oct 31 00:40:01 2002

Is it possible you are getting RF feedback into the radio from the antenna ?
And only on that band due to antenna problems ?

Or is this test shown into a dummy load ?

Thanks and this is an interesting one!
73
Jim W7RY

----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Cc: <[email protected]>
Sent: Wednesday, October 30, 2002 8:06 PM
Subject: Re: [Elecraft] K2/100 Flat topping on 30m?

>
> If anyone else with a K2/100 has a scope to do similar tests to those I
> posted at http://www.kc4kgu.com/k2-30m/ I would appreciate hearing and or
> seeing their results.
>
> For that matter, if ANYONE else has a scope that they can look at 30M SSB
> modulation with, it would be helpful.
>
> I just did a bit more testing and from what I can see on K2/100 #2490,
> anything over 55watts flat tops.
>
> I can see _some_ evidence of flat topping when I disable the KPA100.  It
> starts at about 8w in QRP mode.
>
> Thanks!
>
> 73 de John - KC4KGU
> K2/100 #2490
>
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