Originally Posted by AX-O
.... I wired the flip/flop function of the 240 on the stick and I hate it. Have to look inside for a green light (feedback) in the sun to determine if i am transmitting on comm 1 or 2. so I don't even use it.
....Would love to wire #1 and #2 comms independently. If you have a working example, please post it. Thank you and good luck.
Stay tuned... My project this week is to do exactly this using an Arduino microprocessor (very inexpensive). It will monitor the Comm1 and Comm2 push buttons on both sticks and the PS-8000 intercomm Comm1 Comm2 output pins (to the radios) and will generate a quick "swap" pulse to my PS-8000 unit if it attempts to transmit on the wrong radio. No relays involved. This design also allows the radio/intercom panel to function normally like you are used to. Relays add way too much mechanical complexity, especially if you need duplicate operation on both sticks in your airplane.
I agree with your comment about flying formation.... Having a dedicated push button that always goes to your flight is a good safety enhancer. I'll let you know when I have the unit installed and tested.
Bob Walden (Waldo), CFII-ASMEL
KFFC "Falcon RV Squadron" Peachtree City, GA
RV-7A Tip-Up, IO-390, 600+ Hours
EAA/AOPA/Vans Air Force 2020 Supporter