Linda,

This is a tough decision as to what to buy. If your 121.5 ELT is OK and all you 
need is to change your battery then I would stay with that and as a backup get 
a PLB. When the prices come down then purchase one for the aircraft . The main 
thing to consider is during your emergency descent for landing, how and can  
you activate your ELT, after you land can you get to the ELT in the aircraft 
and if not and you must leave the aircraft do you have another means of being 
located if away from the aircraft. The best way to go is a PLB and the 406 
installed in the aircraft with a panel activation switch . But we are talking 
big bucks.

In fact it is 8AM on Wed  and I have been up most of the night looking for a 
121.5 ELT at the IAD Dulles airport. The tower picked it up and several 
aircraft in that area were hearing it. We have the area located, in the FED EX 
terminal, but there are hundreds of the metal shipping containers in that area 
and we think an ELT was shipped  with a battery installed and the bumps have 
activated it. Going to be a long day as it was already a long night. But we 
know it is not a distress situation which is most important. This brings back 
my earlier remarks of how the VHF signal bounces around when metal buildings or 
in this case metal shipping containers are involved. We checked all the Fed EX 
aircraft and they are OK. 

Seems I either get this type or the ones that are located in a landfill under 
piles of garbage. If you decide to remove your ELT and discard it be sure the 
battery is disconnected. This was the case with the landfill one. Seems the 
battery had an expiration date 3 years ago and the owner though it was not 
working - but it was chirping away. Talk about some upset ground search people. 
Most had to throw their clothes away after the " search". Found it under 3 feet 
of trash in the County land fill.

Good luck in your decision.

Jim   


----- Original Message ----- 
  From: Linda Abrams 
  To: [email protected] 
  Sent: Wednesday, February 04, 2009 4:04 AM
  Subject: [ercoupe-tech] Re: !21.5 Emergency Freq


  Ooops; my mistake. Thank you to all who corrected it. Antenna on the 
  belly is transponder; ELT antenna is on the ELT itself which rides in 
  a little cage on the wall of the baggage compartment inside the 
  plane. (But it was worth making the goof to evoke the detailed 
  lesson on emergency SAR from Jim Truxel that resulted -- thank you! 
  And, like Ed, I'm wondering what the best alternative to the 
  expensive new installed-ELT would be, from the point of view of the 
  CAP folks who do the searching. What do you think, Jim? Assuming we 
  leave the old 121.5 ELT in place, is a hand-held PLB or something 
  like Find-Me-Spot a better addition?)

  Linda
  N3437H (Sky Sprite)
  L.A.

  2e. Re: !21.5 Emergency Freq
  Posted by: "Syd Cohen" [email protected]
  Date: Mon Feb 2, 2009 5:58 pm ((PST))

  ELT antennas are rarely mounted on the belly of an airplane. If you
  see an antenna on the belly most likely it is the transponder antenna.

  Syd



   

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