Re: Oscillations on high bands
¿ªÔÆÌåÓýYeah you can short C14 and C16 but C15 needs to be a 0.1uf¡?? I¡¯ll fix that on the Carrier board for the PIN DIODE TR switch¡ ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ? From: [email protected] <[email protected]> On Behalf Of D Solt via groups.io
Sent: Wednesday, April 2, 2025 1:28 PM To: [email protected] Subject: Re: [SoftwareControlledHamRadio] Oscillations on high bands ? I solved my oscillation problem.? I did not populate the 1.8MHz HPF.? I placed shorts across the capacitors forgetting that the MASWSS0179TR RF Switch needs DC blocks.? I now have >65 dB isolation across the frequency range. I am running version 66.9. dave, n3ds ? ? |
K9HZ