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8m only QDX prototype


 

Bob, Jim, et al,

Further to the 8/6m prototypes I previously posted, I’ll now post the details of an 8m only prototype.

Schematic
Analysis
Implementation
BPF is 11t on an T50-6, squashed up so probably 12 loosely wound may do the trick and a 30pF cap
RF Filter sweep
TinySA measurement

Sent from my iPhone 6


 

开云体育

It seems the schematic got dropped off here as well.?
As attached

73

Ross

6

Begin forwarded message:

From: Kabulldust <kabulldust@...>
Date: 31 August 2023 at 15:25:02 GMT
To: [email protected]
Subject: 8m only QDX prototype

?Bob, Jim, et al,

Further to the 8/6m prototypes I previously posted, I’ll now post the details of an 8m only prototype.

Schematic
Analysis
Implementation
??BPF is 11t on an T50-6, squashed up so probably 12 loosely wound may do the trick and a 30pF cap
RF Filter sweep
TinySA measurement