[Dx4win] OQRSd or OQRSb

[Ian Fugler]

Direct and buro 

Sent from my iPhone

> On 30 Dec 2020, at 21:09, David Ross <drossm at sympatico.ca> wrote:
> 
> What is the difference between OQRSd and OQRSb in the QSL Method?
> 
> David VA3MJR
> 
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