The Australian military Land-Rover Series 3 Fitted For Radio variant closely resembled the previous Series 2A variant. Certainly the scooped out tailgate is identical to the Series 2 and 2A variants. Pairs of batteries were mounted on sliding racks in vented lockers on each side of the Land-Rover, directly behind and below the bulkhead behind the front seats. One side was the spare set and there was a power distribution box fitted to enable switching between the battery pairs and terminals. In regard to the more obvious radio fittings, the aerial mounted differently and the style of mount carried through to the Perentie 110 FFR variant. Inside the rear of the FFR there was a battery power distribution box behind the left hand or passenger front seat and also two radio tables/mounts behind the front seat bulkhead. And of course there were radios too. Take your pick of the following sets: AN/GRC-106, AN/PRC-47, AN/VRC-46, AN/VRC-49, AN/GRC-160, AN/GRC-125, GRC-F2/F4.

Also in the rear was some seating. The radio operator's single seat and GS style rear seats varied in size and interior position but were basically the same Land-Rover standard rear seats manufactured/fitted since the Series 2 FFW.

The FFR has dual "high" AmpHour 12V batteries (100~120ah?) in series and a 28V alternator with an output of between 100 and 140 Amps to maintain the required supply of 24V DC power for the operation of the RAASC HF radios. The output varied according to whether the engine was hot or cold. To maintain battery charge when the FFR was 'in-field' operating as a base station or a relay station for signals the engine was continuously run at a fast idle for hours at a time. Therefore the cooling systems for both the engine water and engine oil had to be very reliable. Care had to be taken to avoid carbon monoxide poisoning to personnel whilst the engine was idling. But what to do with the toxic not to mention hot exhaust gases? A FFR parked for an extended period in spinifex grass, dry scrub or even deep leaf litter with a hot exhaust system presented a fire hazard... so caution had to be exercised when setting up a sig post and concealing it everytime, everywhere, whether the crew was just fresh out on exercise and eager... or whether the crew was severely fatigued from a week's round-the-clock operations. The exhaust noise muffler was large and fitted east-west under the front bumper. This mod required a strange looking reversed exhaust manifold and chassis brackets. An EMEI was later released to retrofit the FFRs with a mini brush bar bolted on the low section of the normal brushguard to provide some protection to the front mounted muffler.)

To assist station concealment at night an interior canvas curtain was unrolled as well as a set of canvas window covers. In night operations the station interior was lit in red light with the option of white light. This was provided by an overhead switchable dual colour interior lamp attached to the centre hoop for the canvas roof. The 'operators/cargo lamp' appears to be a standard Hella or similar brand square two colour lamp. Its red one side and clear on the other side. The red side of the lamp is orientated toward the front of the interior. The lamp is mounted to a flat sheet of aluminium with a toggle switch mounted above and adjacent to the centre hood bow. The switch allows the light to be turned to ON -white/ OFF /ON -red. (from P. Hastings)