The Registry Of Ex-Military Land-Rovers Au, NZ, etc Australian Army Radio Gear for B Class Vehicles  
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Sigs' Series 2 FFW 1960
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Series 2A FFR - Pedr H. (mem038)

 

Many ex-military Land-Rover Fitted For Wireless (F.F.W.), Fitted For Transceiver (F.F.T.), and Fitted For Radio (F.F.R.) restorers have to search a heap swapmeets to collect the correct era radio gear. This information is aimed at assisting that job... there is some text from Phillip H. (mem118) in W.A. and some photos and scans from Ross O. (mem112) in S.A..

Terminology:

  • H.F. -- High Frequency. Term refers to radio frequency band (or spectrum), measured by Megahertz, ranging from 3Mhz to 30Mhz.
  • V.H.F. -- Very High Frequency. Term refers to R.F. band ranging from 30Mhz to 300Mhz.
  • A.T.U. -- Aerial Tuning Unit. The receiver and transmitter wireless sets must be tuned efficiently to the aerial in use at the time. Differing types of aerial require different tuning.
  • P.S.U. -- Power Supply Unit. Varying DC voltages are required for 'valve' wireless gear. While a P.S.U. input DC voltage does not vary (usually 24vDC) the output of a P.S.U. is various DC voltages to drive different gear. Larkspur radio gear requires a P.S.U. with 24vDC input power and various outputs.
  • C11 -- H.F. transmitter only. High power.
  • R210 -- H.F. receiver only.
  • C11/R210 -- Combined sets make up a H.F. receiver/transmitter station.
  • C42 -- V.H.F. receiver/transmitter. Covers only a part of the V.H.F. band. High power.
  • C45 -- As above. Covers a different part of the V.H.F. band than the C42.
  • B47 -- V.H.F. receiver/transmitter. Covers only a part of the V.H.F. band but is the same coverage as C42. Low power.
  • B48 -- As above. Covers the same as C45. Low power.
  • LT -- Low Tension.
  • Larx -- Larkspur radio gear.
  • Dogbone -- Slang for the patch cable that fits from the P.S.U. to the wireless set.

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 03

Larx pic: VHF†A.T.U. in front fender mount with No.28 Aerial base. Also No.6 A.T.U.

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 04

Larx pic: No.28 Aerial base
The No.28 Aerial base used for VHF Larkspur applications

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 05

Larx pic: HF mounting arrangement on Series 2A F.F.R.
Shows HF Aerial base No.31 used for HF Larkspur applications

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 06

Larx pic: A43R Mk II.
Manpack receiver/transmitter used by SASR for ground to air commís

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 07

Larx pic: VHF Antennae Tuning Unit No.10

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 08

Larx pic: mounting bracket for Panels, Power Distribution unit 5820-66-013-2803 in Land-Rover F.F.R.

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 09

Larx pic: C11/R210 HF (left) & B47 HF (right)
Display set up at the Military Vehicle Museum, Port Adelaide, S.A.

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 10

Larx pic: C11/R210 HF
Display set up at the Military Vehicle Museum, Port Adelaide, S.A.

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 11

Larx pic: C13 HF receiver/transmitter ground tray application, includes all accessories apart from mic/headset

Larkspur HF scans - all from the manual 7610-66-011-9594, 1960 user handbook on installation of wireless stations in B class vehicles

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 12

Larx scan: Adaper 'A' Reception Set
Enables Reception Set R210 to operate without Wireless Sender C11 Unit

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 13

Larx scan: Rebroadcast Unit 'B'
Local rebroadcast (aka relay) control unit

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 14

Larx scan: Control Unit, Operators Headset 'C'

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 15

Larx scan: Control Unit, Drivers Headset 'D'

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 16

Larx pic: Dogbone Patch cable
connects PSU to C42 set or C45 set

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 17

Larx pic: from C42 set manual

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 18

Larx pic: from C42 set manual

 

All Larx scans below are from Larkspur Manual 7610-66-011-9594

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 19

Larx pic: C42 Power Supply Unit (PSU)

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 20

Larx pic: C11 set

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 21

Larx scan: IC Amplifier 'I'
To suit wireless sets without audio amplifiers for intercom (mics & headsets), eg. B47 set

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 22

Larx scan: Junction Box One-Set 'J1'
fits between wireless set and harness with headset sockets

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 23

Larx scan: Junction Box Two-Set 'J2'
fits between wireless set and harness, for use with two wireless sets, connector for 2 control units 'R' and 'LT'

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 24

Larx scan: Remote Control 'K' Mk2
Morse unit used for remote control

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 25

Larx scan: Adapter Unit One-Set 'O'
Adapter/connector unit for headsets

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 26

Larx scan: Remote Control Unit 'R'

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 27

Larx scan: Receiver set R210

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 28

Larx scan: Adaptor Unit, Headset 'T'

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 29A

Larx scan: C42 and B47 in Studebaker 6x6 GS 2½ Ton Truck

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 29B

Larx scan: C11 and R210 in Series 2 4x4 GS ¾ Ton Truck

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 30

Larx pic: B47 receiver/transmitter set

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 31

Larx pic: Panels, Power Distribution No.8
Suits Land-Rover F.F.R. - fits on the above picture of the mounting bracket in the centre seat position NSN 5820-66-017-9280(?)

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 32

Larx scan: Aerial Base No.31

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 33

Larx scan: Junction Box, 4-way, 'LT'

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 34

Larx scan: Headset with mic sockets

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 35

Larx scan: Commander's Headset and mic (1)

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 36

Larx scan: Commander's Headset and mic (2)

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 37

Larx scan: 'C11' and 'R210' power supply

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 38

Larx scan: Telephone, Remote Control, 'S1' No.1

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 39

Larx scan: F.F.T., F.F.R. trays - Carrier Set No.82

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 40

Larx scan: VHF set Aerial Tuning Unit

The following scanned pages are of

7610-66-011-9594
USER HANDBOOK
INSTALLATION OF WIRELESS STATIONS IN B VEHICLES
1960

Note: there are over 80 pages in 5 chapters and 2 Annex chapters. Some chapters have over 20 pages... so they load slowly...

Big scans of the Radio Handbook pages average 500kb each.

LARX WEBSITE

 

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