The RFI HPM-RM-070073 VHF Roof Mount Antenna is a flexible, factory-tuned ¼-wave antenna covering 70 - 73.5 MHz with a VSWR of 1.8:1. Standing less than 440 mm tall and fitted to a standard MB9 roof-mount base, it solves height-restriction issues where a conventional quarter-wave whip cannot be used. A moulded lower section and helically wound stainless-steel upper section give the antenna exceptional flexibility and durability for harsh industrial and mining environments.
Product Features:
- The helically loaded ¼-wave radiator delivers full performance in a compact 440 mm form factor.
- It is factory tuned for 70 - 73.5 MHz, while other versions cover 70 - 87 MHz and 148 - 174 MHz ranges.
- The moulded base and flexible stainless-steel whip withstand impacts and constant vibration in height-restricted areas.
- It is compatible with the industry-standard MB9 roof-mount base for fast, secure installation.
- It provides a typical gain of -3 dBq with a VSWR 1.8:1 to ensure reliable signal integrity across the designated band.
Application Areas:
- It is ideal for mining vehicles and machinery operating under low ceilings or overhead obstructions.
- It is suitable for fleet cars, vans, and utility trucks that require a low-profile VHF antenna without sacrificing performance.
- It performs reliably on industrial plant sites where cranes, pipes, or tunnels limit antenna height.
- It benefits rural emergency-services vehicles needing a rugged, flexible antenna for VHF communications.
- It is perfect for any roof-mount installation where standard quarter-wave whips are impractical due to clearance limits.
In the Box:
- 1 x RFI HPM-RM-070073 VHF Roof Mount Antenna (70 - 73.5 MHz).
Documents:
RFI HPM-RM Series Antenna - Datasheet
