• Become a Subscribing Member today!

    PiperForum.com is a vibrant community of Piper owners and pilots with over 1,500+ active members.

    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.

    Why become a Subscribing Member?

    • 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.

    Become a Subscribing Member and access PiperForum.com in full!

    Subscribe Now

Broken & Unreadable on Certain Frequencies

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

itsjames2011

Member
Joined
Jan 31, 2015
Messages
12
Reaction score
2
Hey everyone,


I am pulling my hair out with my continued radio woes and would appreciate any advice. Westover tower and ground hear me great from 50 miles away on 134.85 and 118.35. Northampton unicomm and turners Unicomm hear me great on 122.7 and 123.0 yet Westfield Tower 118.9, Worcester Tower 120.5 and Bradley Departure 125.35 all say I am broken and unreadable even when I'm in the pattern and can see the tower!

I have 2 seperate antennas in the airplane. I have tested them both with an analyzer and the vswr is 2:1 or less across the whole band.

I also tested them with a seperate swr and power meter using the radios themselves and I am seeing a good 5-6 watts of output regardless whether I am on one of the good frequencies or the bad frequencies.

I have tried 2 seperate KX-175B's, an MX170, and have confirmed via an external frequency counter that they are transmitting on the correct frequency and have not drifted.

3 Seperate radios, 2 seperate antennas, same behavior regardless of the setup. Anyone care to speculate as to why I would be broken and undreadable on only certian frequencies when all of the equipment checks out okay?



My equipment list is as follows.
4 x Bose A20 Headsets
David Clark 4 Place Intercom
2 x KX175B Radio
Collins AMR-350 Audio Panel
 

Latest posts

Back
Top