The HM range of antennas are ground plane independent and can, therefore, be mounted on any surface. The antenna is ideal for motorcycles, ambulances, fire trucks and other vehicles with non-conductive panels but can also be used on any other vehicles or at fixed sites.

The HM antenna range has a rugged design with a flexible nylon whip. The base is moulded in rigid nylon and mounted by way of an M14 mounting bush.

Rugged design
Flexible whip
Ground plane independent

The HM mount (ML10) includes integrated low loss cable which comes in various lengths and with various terminations.

Product Variants

Part Number


Operational Band

HM-TET 380-430 TET
HM-S1 380-400 S1
HM-S2 410-430 S2
HM-433 433 433
HM-S4 450-470 S4
HM-S5 806-870 S5


Application Frequency
UHF Frequency Band S1 (380-400MHz); S2 (410-430MHz); S4 (450-470MHz); TET (380-430MHz); S5 (806-870MHz)
Electrical Data
Typical VSWR 2:1
Peak Gain (dBi) 4
Max Input Power (W) 10w
Pattern Omni-Directional
Ground Plane Independent Yes
Mechanical Data
Available Colours Black
Operating Temperature -30° / +80°C
Mounting Data
Mounting Type Panel Mount
Mounting Method 14mm Mounting Bush
Whip Mounting TNC (f)

HM-[VAR] | Ground Plane Independent Panel Mount Antenna

  • Product Code: HM-[VAR]


Request Quotation

Download Catalogue

Join Mailing List

Contact Us:

UK Head Office:
Tel: +44 208 877 4444

USA Office:
Tel: +1 817 539 1888

Australia Office:
Tel: +61 8 9314 1381

France Office:
Tel: +33 5 54 07 04 36

Singapore Office:
Tel: +65 69 62 68 70

Germany Sister Company:
Tel: +49 2303 902 88 00

Tags: HM Antenna, GPI, Ground Plane Independent, Flexible Whip,