5
$\begingroup$

Does anybody know what this antenna is used for? I suspect a glideslope antenna but I am not totally sure.

enter image description here

Improve this question
$\endgroup$

1 Answer 1

Reset to default
6
$\begingroup$

Glideslope antennas are those U shaped stubby 3 prong fork things that look like heating elements for a water heater. That's a 75 Mhz Marker Beacon antenna. I have revised this post. I thought it was just a VHF antenna, mainly because almost all Marker Beacon antennas you see out there these days are faired-in blade antennas, but the comment by @Gerry got me to do a bit more rummaging around, and found a couple examples of the same antenna as on that 172 and judging from the apparent length it's likely for Marker Beacon. That antenna is probably quite old and I'm not even sure you can buy one today, as all the news ones seem to be blade style.

Improve this answer
$\endgroup$
1
  • 1
    $\begingroup$ There are marker beacon antennas that look like this. The length will tell you whether it's a comm antenna (about 23" or 60 cm) or a marker beacon antenna (about 39" or 1 m). $\endgroup$
    – Gerry
    Commented Nov 23, 2019 at 20:03

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .