• PiperForum.com is a vibrant community of Piper owners and pilots. Our over 1,500+ active members use Piper Forum to swap technical knowledge, plan meetups and sell planes/parts. We host technical knowledge of general aviation topics and specific topics on J3-Cubs, Cherokees, Comanches, Pacers and more. In addition to an instant community of pilots for you, PiperForum.com is a library of technical topics, airplane builds, images, technical manuals, technical documents and more.

    Access to PiperForum.com is subscription based. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched library of Piper knowledge.

    Click Here to Become a Subscribing Member and Access PiperForum.com in Full!

Pilot Activated Lighting Doesn't Work

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.


Well-Known Member
Jul 15, 2010
Reaction score
Anyone have this problem? My comm radios work just fine. No matter whether I transmit on C1 or C2, or even press the PTT switch on the pilot's or co-pilot's yoke, my radio won't turn on PAL's. Flying last night to two different airports and the same thing. I just called Unicom and asked them to switch on the lights. Call went fine, lights went on. But I previously tried many times to switch the lights myself, all intensities (3, 5 and 7 clicks) .... nothing. The clicks were audible in my headset, but nothing. I even flew directly over the second field and still nothing.

I can't find much on how the system actually works. What type of modulation does the system really want. I know the clicks are supposed to be within 5 seconds, but what's too fast or too slow?

My radios are not new but work just fine with good range. Any ideas?

Latest posts