Mobile Station 1.6-170 / 512 Mhz*

Single Radio Vehicle Station:

For normal capacity Vehicle Station requirements, a single radio Vehicle Station configuration with only 1 exciter is implimented and the Afracal2 Amplifier automatically routes the 1-6 Mhz  to 88 Mhz signal through the 125W PA and from 88.1 Mhz up to 170 / 512* Mhz signal is routed through the 2nd 100W Amplifier.

Dual Radio Vehicle Station:

For higher capacity Command Vehicle Station requirements, HF long distance communications will be required to be on standby at all times while medium distance VHF / AM communications are ongoing.  In such case, the dual radio Vehicle Station is deployed utilising 2 Leopard1 radios connected to the Afracal2 Amplifier.  The top Radio will automatically be allocated to the 1.6-30 Mhz 125W Amplifier while the bottom radio will becomes the VHF/UHF* radio and utilise the 2nd 75W Amplifier for the VHF/UHF band, 30.1Mhz-170 / 512* Mhz.

Signal Routing:

  • The input routing to amplifiers are done automatically by the Afracal2 PA
  • The output filters are automatically switched in as per need.
  • The output signals are automatically routed to the correct in band antenna for HF 1.6-30 Mhz, VHFL for 30-88 Mhz and VHFH 88.1-170 / 512* Mhz to ensure the most efficient antenna is connected.


  • For HF Vehicle Station Antenna we recommend;
    • Automatic HF Tuning Antenna
    • NVIS kit
  • For VHF low band Vehicle Station Antenna we recommend;
    • Wide band VHF (30-88 Mhz) Vehicle rod antenna
  • For VHF higher band to UHF Base Station Antenna we recommend;
    • Wide band V/UHF (100-512 Mhz) Vehicle rod antenna

Power Supply Options:

The Afracal2 accommodates a very wide range of DC supply, 10V – 32Vdc is automatically converted into a stable 24V DC to supply the internal parts as well as the Leopard1 Radio/s connected.

The Vehicle Station can be connected directly to any DC source, however Sat-Com solutions include some options to ensure uninterrupted operations.

  1. DC Inverter Charger PSU: With the Base Station Inverter Charger PSU unit installed, the base station operates directly off the 24V DC batteries while the Inverter will provide uninterrupted 240 AC ( 1000VA) to other devices in command and control room, such as PC’s, Monitors, cellphone and night vision devices etc. At the same time the batteries will be charged by the AC charger or the DC/SOLAR charger whichever is available at any given time.
  2. DC-Direct: In the event none of the above powe rsolutions are available, the Afracal2 Vehicle Station can be operated from any Vehicle/Truck battery system, 12V or 24V.
    • It is HIGHLY recommended to implement the Sat-Com Vehicle Voltage Monitor (VVM) to automatically disconnect the load from the vehicle battery before vehicle battery is discharged beyond capability to start the vehicle.
  3. AC PSU: With an AC Power Supply connected when vehicle is stationary and AC available, the Vehicle station can run off a suitable sine wave inverter / UPS system and provide continuous operations with the DC Inverter Charger PSU installed. (option1)

While the radio is connected and powered from the Amplifier, their internal radio chargers will charge the radio battery to be ready at all times for hot extraction in case of emergency to facilitate uncompromised communications