Frequently
Asked Questions
Helmets
-------------------------
Q: Can you
rebuild other manufacturers helmets?
A: Yes! We
will happily rebuild your old HGU or SPH style helmet for a lot less
then you would expect to pay.
Q: Do you
use parts from manufacturers other then Gentex and Scott?
A: Absolutely.
Although we use many of the same subcontractors as our competitors, we
are constantly researching new manufacturing facilities to provide our
customers with the best value.
Q: Do you
have any new surplus helmets in stock?
A: Yes. We
sell high quality new military surplus helmets & we sell our own
brand of fighter and helicopter helmets. We use only top quality
microphones, earphones and cables.
Communication-------------------
Q: When I
plug my military helicopter helmet into my general aviation radio, I can
hear but I can't transmit. What is wrong?
A: Your military
helmet has a 6 ohm dynamic microphone and 19 ohm dynamic earphone
elements. Your general aviation radio needs a carbon-compatible
microphone & 150 ohm to 600 ohm receivers. The best solution
would be to purchase a new electret microphone backed by an 18 month guarantee.
Q: My
dynamic microphone does not work. Can you provide any solutions?
A: Add an amplifier
to your dynamic microphone. This is an expensive alternative
and only recommended for special purposes.
Q: What
can be done about poor reception and low volume?
A: Purchase a new
pair of 300 ohm speakers.
Alternate
Solution: Keep your old speakers. This presents two problems.
First you will never get max volume from these earphones. Second,
because your impedance at the plug is 9.5 ohms, your radio reads this as
15 headsets and draws down the power to the other headsets in your
system, so the others with you cannot hear!
If this is an older
model helicopter helmet you should remove the Sonex ear cups and replace
them with the newer style crushable ear
cups. A way to tell the difference is that the crushable have 8
tabs holding them into the ear cup retainer. The Sonex ear cups do not.
This simple solution provides your helmet with enhanced lateral
protection. They are also contoured for a better fit and are found to be
lighter & quieter. |