Re: Attenuator problem
¿ªÔÆÌåÓýGood question¡ the TX attenuator should work the same way¡ so either there is a bug in the software¡ or there is a problem with the MCP23017.?? Since the RX side works I think its probably a bug in the code.? Oliver will know. ? ? 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 Tom - AJ8X via groups.io
Sent: Monday, April 14, 2025 1:14 PM To: [email protected] Subject: [AmateurRadioBuilders] Attenuator problem ? V12.6 RF board. 'Menu/RF Set/RF in Atten' works fine, I get the appropriate 3.3v at pins 21 - 26 as adjustments are made. But 'RF Out Atten' doesn't work the same. I don't see any voltage on pins 1 - 6 as adjustments are made. What am I missing? |
K9HZ