FOVC Instruments

The FOVC is a secure fibre optic communications system specifically designed for use in taxing test environments including high EMC and Lightning scenarios.

Aircraft have to be able to operate in very demanding environments, including very close proximity to high power RADAR and other transmitters. In order to ensure that the sophisticated electronics on board will work properly part of the design process demands that such aircraft and vehicles are “illuminated” by such RADAR systems at distances of just a view tens of feet. The essential communications required during such tests means that the use of copper conductors between the control centre and the aircraft or vehicle under test is simply not possible.

This problem has been solved with the FOVC a fibre optic communication system. The system is contained in two fully screened units, each equipment allows the use of up to four standard military headsets giving perfect clarity of communication in this very demanding area of testing thereby allowing DMST to play an important role in military vehicle development.

This compact system provides a secure voice communications net with fibre optic modem transmission; the system is fully multiplexed for up to eight users. Two interchangeable units are used as a secure medium distance communications system connected together via fibre optic cable. Built into the system is an aircraft interface that allows communications with most modern aircraft voice communication systems.

The system incorporates tone transmission via a dedicated internal modem. The design offers mains and battery operation. A 100-metre reel of multimode fibre optic cable is provided as standard. External connections can be made via the side panel when the unit is fully closed down

The FOVC has been used on various aircraft including the Merlin (Mk3), Apache, Sea King, Tornado, Phantom and Harrier.


Full Specifications


Part/NoDescriptionBrochure
6541-1Induction Probe, 1.25" I.D. for LEM spec
7512-1Spike Induction ProbeDownload
7541-1Spike Injection ProbeDownload
8022-1Current Probe for CS09Download
8614-1FCC "Line Probe" (Capacity Coupler) Download
9335-2Impedance Matching Injection ProbeDownload
RFI/EMICurrent Probes and Injection ProbesDownload
9123-1NCurrent ProbeDownload

Front Panel


SeriesFrequencyRated PowerBrochure
SXL1 MHz - 10 MHz10-5000Download
SXLE1 MHz - 30 MHz10-5000Download
SXX10 MHz - 100 MHz10-5000Download
SXXL20 MHz - 100 MHz10-5000Download
SVCE20 MHz - 500 MHz10-5000Download
SVCEE10 MHz - 520 MHz10-5000Download
SVC100 MHz - 500 MHz10-5000Download
SMCL100 MHz - 1.0 GHz10-3000Download
SMIV400 MHz - 1.0 GHz10-5000Download
SMV500 MHz - 1.0 GHz10-5000Download
S210.8 GHz - 2.0 GHz5-2000Download
S2510.8 GHz - 2.5 GHz5-2000Download
S2050.5 GHz - 2.0 GHz5-2000Download
S25050.5 GHz - 2.5 GHz5-2000Download
S310.8 GHz - 3.0 GHz5-500Download
S611.0 GHz - 6.0 GHz5-250Download
S622.0 GHz - 6.0 GHz5-500Download

Side Panel


Part/NoDescriptionBrochure
6254-150Pulse Transformer, 150 ampere secondary (Use with 6254-5S or 7254-1) Download
7115-1Pulse Transformer, 15 KV (Use with 6254-5S) Download
7115-2Pulse Transformer, 15 KV (Use with 8282-1) Download
7332-1Pulse Transformer (Use with 7054-1A, step up to 600 V into 6 ohms)Download
7406-1Pulse Transformer (Use with 7054-1A, step up to 1200 V into 50 ohms)Download
7802-1Pulse Transformer (Use with 6254-5S, step up to 450 V into 12 ohms)Download
8282-150Pulse Transformer, 150 ampere secondary (Use with 8282-1)Download
8527-1Pulse Transformer (Use with 7054-1, step up to 2 KV into 50 ohms) Download
8527-2Pulse Transformer (Use with 8282-1, step up to 2 KV into 50 ohms) Download
8908-1Pulse Transformer, plugs 8282-1 to provide 600V from 50 ohm source Download
9007-1Pulse Transformer, plugs 8282-1 to provide 1200V from 50 ohm source, 0.15 uSDownload

Supplies/Environment


Part/NoDescriptionBrochure
6220-1AAudio Isolation Transformer, 50 amperes line currentDownload
6220-2Audio Isolation Transformer, 100 amperes line current
6220-4High Voltage Coupling Transformer
7032-1 Isolation Transformer, 115/115 V, 50 to 400 Hz, 800 watts
7032-2 Isolation Transformer, 230/230 V, 50 to 400 Hz, 800 watts
7032-3 Isolation Transformer, 124/230 V, 50 to 400 Hz, 800 wattsDownload
7033-1Impedance Matching Transformer, 2.4 ohms to 50 ohms
7035-1Wide Range Transformer, 115 V output @ 80 watts (for 6550-1)
8810-1Impedance Matching Transformer, 1.5 ohms to 50 ohms
8811-1Wide Range Transformer, 115 V output @ 200 watts (for 8850-2)
9138-1Step Up 2 KV, 3 KHz to 30 KHz
FOVC Instruments