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Re: [SoftwareControlledHamRadio] Tx-Rx logic on LPF-Control


 

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First, R8-R11 should NOT BE POPULATED under I2C control.? ?U15 pins GPA0 and GPA1 should ALTERNATE STATE.? NOTHING should be plugged into J1 unless it LISTENS ONLY. ???U3 and U7 appear to be working correctly¡­

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I think something happened the software and I need to have Oliver look into this because its happening to everyone and just after the last version of the software was released.

Sorry just finished a colonoscopy so a little out of it¡­

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Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

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Owner - Operator

Big Signal Ranch ¨C K9ZC

Staunton, Illinois

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Owner ¨C Operator

Villa Grand Piton ¨C J68HZ

Soufriere, St. Lucia W.I.

Rent it:

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Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

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email:? bill@...

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From: [email protected] <[email protected]> On Behalf Of D Solt via groups.io
Sent: Friday, March 21, 2025 2:56 PM
To: [email protected]
Subject: [SoftwareControlledHamRadio] Tx-Rx logic on LPF-Control

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In my efforts to track a PA oscillation problem I noticed that in the SSB mode, the receive solid state switches (U1 & U8 on the LPF-Cntl) do not change state when the PTT is engaged but the transmit SSS's (U3 & U7) do change state.? I'm using ver 66.4.? In the CW mode, all 4 SSS's change state on key down.? I would expect all the switches to change state in CW and SSB so that the BPF is used in Tx and Rx.? Am I understanding this correctly?

dave, n3ds

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