The HPM-RM Series is a range of flexible, helically loaded electrical 1/4 wave antennas for applications where height restrictions prohibit the use of standard quarter wave antenna.
Fitted to a standard MB9 antenna base, the HPM-RM Series is less than 440mm tall. The lower section of the antenna is a moulded former while the upper section is a helically wound stainless steel section providing a flexible antenna suitable for height restricted areas. The antenna is ideal in mining applications because of this flexibility.
The antenna is supply factory tuned to cover 165 to 174 MHz at a VSWR of less than 1.5:1.
Available in the following version:
70.0 – 73.5 MHz
72.0 – 75.0 MHz
75.0 – 77.0 MHz
77.0 – 82.0 MHz
82.0 – 87.0 MHz
148 – 156 MHz
156 – 165 MHz
165 – 174 MHz
NOTE: For low profile applications, also consider the TLA80 Series of transmission line style antennas