[Elecraft] Carrier breakthru using SSB filter

Tue Dec 2 06:07:00 2003

No, it's all bands Brett... by opening Cp and D4 (it's still there) front
end  and DSB generator are isolated

Ian

----- Original Message ----- 
From: "VR2BrettGraham" <[email protected]>
To: <[email protected]>
Sent: Tuesday, December 02, 2003 10:57 AM
Subject: Re: [Elecraft] Carrier breakthru using SSB filter

> G3ROO didn't mention if the constant four light bulbs only happens on
certain
> bands, or all.
>
> If it's on just 18 and/or 21 Mc, then there's a fix on the Elecraft site -
> the problem
> is that the KSB2 is "hearing" radiation from an RFC due to the aggregate
energy
> from all the SW b'cast below or above those bands, respectively.
>
> I have yet to do it to mine, but since the problem here only occurs when
either
> band is reasonably open, I'm sure it will do the trick - though since I do
> two radio
> contesting here & have external BPFs that allow me to listen on one band
> whilst going full tilt on another (with antennas sometimes just
centimeters
> apart),
> I found it odd that the additional selectivity didn't help.
>
> This suggests that in my case at least, the radiation from the RFC is
probably
> dominant & the additional tweaks to the internal BPFs that are part of the
mod
> might not make such a big difference.  This may not be the case in ITU
> Region 1.
>
> If the light bulbs are lit on all bands, then it's something else.
>
> 73, VR2BrettGraham
>
> _______________________________________________
> Elecraft mailing list: [email protected]
> You must be subscribed to post to the list.
> To subscribe or unsubscribe see:
http://mailman.qth.net/mailman/listinfo/elecraft
> Elecraft Web Page: http://www.elecraft.com
> Also see: http://www.elecraft.com/elecraft_list_guidelines.htm
>