Antenna ID Help

[gsoyka]

I've recently done some avionics upgrades and the shop removed one antenna, but I think there's a couple extra still remaining.  One I can't identify is this long, skinny one on the belly; was thinking it might be ADF, but supposedly that was the antenna that was already removed.  Anyone recognize what this might be?

[kerry]

Marker beacon

[EricJ]

+1, that's the marker beacon "sled" antenna.

[gsoyka]

Guess we won't be pulling that one off then, thanks for the ID!

[N201MKTurbo]

When was the last time you actually used the marker beacon?

[gsoyka]

Now that you mention it, I'm not sure I ever have in this airplane, I'm always using the GPS.  I would have thought it was a requirement to shoot an ILS, but I can't find anything to support that, and given how few marker beacons are still functional these days, that must not be the case.  

[N201MKTurbo]

I was flying an ILS once and that thing started beeping and flashing, freaked me out!