The sleeved, hand portable helical antennae
can be supplied factory tuned or in uncut lengths.
All uncut units are supplied with a cutting chart specifying
the exact number of turns to remove to achieve a specific
frequency. This is more accurate than cutting
to length and also allows installers more flexibility
in their use of stock.
The sleeves are flexible and are made
in a soft yet durable material which minimises the risk
of injury from contact with face or body, which at the
same time is able to resist the wear and tear typically
encountered in civil engineering, maintenance and other
such environments.
ORDERING INFORMATION
Part no
Centre
Frequency
Band
Width
Use
HEL21
169 MHz
8%
BUSINESS BAND
HEL23
157 MHz
8%
MARINE VHF BAND
HEL24
145 MHz
8%
2M AMATEUR BAND
HEL25
455 MHz
10%
HIGH BAND UHF
HEL26
430 MHz
10%
LOW BAND UHF &
70cm AMATEUR BAND
HEL27*
VHF UNCUT
8%
VHF DEALER TUNE*
HEL28*
UHF UNCUT
10%
VHF DEALER TUNE*
*Note:After tuning,
sleeves must be secured to the antenna connector using cyanoacrylate
adhesive (not supplied). On all pre-tuned antennae,
this has been carried out during manufacture.