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FLYING
HELMET |
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READ THIS FIRST, NOT LAST |
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| PUTTING THE HELMET ON | |
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Undo the chinstrap, raise the visor and tuck the neoprene up onto the trim under the visor peak. |
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Hold
the helmet right way up between the palms of your hands so you're
looking at the back of it (as if you were going to put it on someone else who was standing in front of you with their back to you) |
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Curl
your fingers round the front of the side blisters till they reach the
defenders. (fingers have more control than thumbs) |
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Tilt the bottom of the defenders slightly outwards with your fingers. |
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Keep
your fingers thus while you lower the helmet over your head and slightly
from behind. (the backs of your fingers will brush your ears as the helmet comes down) |
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you remove your fingers halfway through the operation you could give
your ears a hard time and can wind up with an ear or two folded over.
Ensure that the defender seals are against the side of your head and do
not press on any part of the ear. There is provision for vertical adjustment of the defenders carried out when the helmet is off the head. |
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| Balaclavas, thick bushy hair, spectacles with thick side temples and caps will all allow the ingress of ambient noise. This will cause the wearer to turn up the volume to compensate, effectively degrading the signal to noise ratio. | |
| POSITIONING THE MIKE | |
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Ensure that the mike is situated centrally on the same level as your lips and about 5mm (1/4") away from them. (You should just be able to touch the mike foam with puckered lips) |
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Ensure the mike is facing the mouth. You can feel it through the foam windsheild. There is some torsional adjustment in the mike boom. |
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Ensure the mike foam is not touching the neoprene which goes under the chin otherwise unwanted slipstream noise may be transmitted. |
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The visor should be lowered and locked just prior to departure to prevent misting in nil-wind conditions. |
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When taxiing with the visor up, tuck the neoprene up onto the top of the helmet trim. |
| VOLUME CONTROL | |
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The
volume control, situated at the rear, bottom L/H side of helmet, affects
the volume of what you hear from your
speakers. It does not affect the volume of what your passenger hears
(he/she has his/her own volume control) nor does it affect your voice
over any radio transmissions you make. In other words it has no effect on the output of your mike. |
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The
volume can be set between off (fully anti-clockwise) to maximum (fully
clockwise) Even set to “off” your voice will still be heard by the passenger/radio (naturally, you won’t be able to hear anything!) |
| SETTING THE HELMET VOLUME | |
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Start with the volume OFF. |
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Gradually turn it up until you hear your passenger comfortably. (1/2 volume or less is usually OK) |
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Solo flyers with radio should set the volume to about 1/4. |
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The
helmet has been designed to be quiet and you should aim
for the quietest setting you can bear, not the loudest you can
bear. Think about this, they are not the same. With the
volume turned too high you could end up with more noise inside your
defenders than there was outside them. |
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| SIDE TONE | |
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Side tone is what you hear of your own voice. It does not affect what your passenger or your radio hears of your voice. It should be subliminal. If you are conscious of your own voice then it’s way too loud. Turn down your volume. |
| SETTING THE RADIO VOLUME | |
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Set the helmet volume as above, and leave it. |
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Then
and only then
adjust the volume on the radio to suit the received signals.
If
the radio signals are too quiet, turn up the radio.
If the radio signals are too loud, turn down the radio. For most people with normal hearing, about 1/4 to 1/2 volume on the radio is sufficient. |
| SETTING THE RADIO SQUELCH | |
| Squelch is essentially a sensitivity control which allows you to adjust the threshold at which your radio goes into receive mode. It has nothing at all to do with your own transmissions. It also has no effect on the quality of the received signals, just your ability to hear them (or not, as you wish) whatever their quality. | |
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Turn the squelch up (fully clockwise) The radio hisses. (receive mode) This is the most sensitive and will enable the reception of distant weak signals, however there will be incessant hiss between the signals and probably engine ignition interference also. |
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Turn the squelch down (anticlockwise) until the hiss and noise just stops. This is the most sensitive setting for normal use. |
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Turn the squelch down further to eliminate unwanted distant transmissions. Fully anticlockwise is least sensitive and you will only receive strong signals. |
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FLYING
HELMET FH-1 has been tested
by
BSI and
CE certified to
the following standard: VISOR
FV-1 has been tested by BSI and CE certified to the relevant parts of
the following standards: |
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Users
should be aware that flying, because of its nature, is hazardous |
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