headset utilises the new acoustically improved PELTOR H540A (Optime III) ear
defender for state-of-the-art noise exclusion. Each ear defender consists of
two cups, one inside the other, separated by special acoustically deadening foam.
electret mike (impedance 1-2 kohms) fitted with foam windshield as standard.
No breath noises or
explosive "p" or "t" sounds.
boom does not intrude into the defender.
Mike is rubber
mounted for low boom microphony effect.
are light weight and moisture
proof baffle-mounted. Impedance 4-470 ohms
are parallel wired:- If one fails the other is still connected.
volume control on each headset. ("OFF" to Loud)
Fully screened curly lead.
1m (Ext. 4m)
A single 3-pole
6.35mm (1/4") jack plug carries both
mike and speaker signals.
Slim foam padded
headband for superb comfort and easy fitting under caps.
weight 350g. Total weight 500g
Can be used with all
be used in other standard aviation
2-jack intercoms using FLYCOM Adaptor
Design philosophy: No matter how efficient a mike or a
hearing defender is, inevitably some small
amount of the ambient background noise will reach the wearer's ears through
both the mike and the defenders. The design of this headset is such that, used in
conjunction with any FLYCOM intercom, the speaker signal and the ambient
background noise are out of phase and tend to cancel each other. Because of
this the volume control acts also as a "noise balance" despite being entirely
passive, just like ANC without the added signal. A very noticeable increase in
signal-to-noise ratio occurs when the volume is turned down to about 1/2
volume or less.