Re: Full QSK for a uBITX

Jerry Gaffke
 

Thanks for finding that, seems right.
I think D3 and D4 are drawn backwards.


On Wed, Aug 7, 2019 at 08:20 PM, Vince Vielhaber wrote:
According to the voltage chart on the next page, that junction is going to have a large negative voltage on it. That would stop the transmit from going to the receiver.

Vince.
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On 08/07/2019 07:35 PM, Jerry Gaffke via Groups.Io wrote:
Here's a manual for the Argosy, T/R switching (and SWR metering) is on
page 51:

http://www.tentec.com/wp-content/uploads/2016/05/Argosy_II_Model_525_Manualf933.pdf
;;; D1,D2 look to me like they would be forward biased during transmit,
which would not work at all.



 

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