[prev in list] [next in list] [prev in thread] [next in thread] 

List:       elecraft
Subject:    Re: [Elecraft] [K2] How much AF volts at 1kHz to get full RF power using KSB2?
From:       Don Wilhelm <w3fpr () embarqmail ! com>
Date:       2014-09-29 20:45:25
Message-ID: 5429C4E5.3010009 () embarqmail ! com
[Download RAW message or body]

Gareth,

Is D4 mounted with the correct orientation. - the line on the silkscreen 
points to the cathode end.

73,
Don W3FPR

On 9/29/2014 4:16 PM, Gareth - M5KVK wrote:
> Thanks, Don
> I'm getting more or less the same as you except for the RF out on U5 pin 4.
> I'm seeing the BFO of about 400mV pp with no AF, and then going up to 800mV
> pp when I whistle into the Mic.
>
> Doh!
>
> I thought I had the carrier balance right, but obviously not. Switching on
> the SSBA=BAL shows a bif signal on U5 pin 4. I've adjusted that down to
> almost zero on the 'scope, but I'm still not getting much RF out.
> 73,
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to elecraft@progressive-comp.com
[prev in list] [next in list] [prev in thread] [next in thread]