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Miniature Onboard Time Code Display

Main features

· IRIG-B / NMEA Time Decoder / Reader

· Miniature size, Solid & Rugged construction

· Front panel user adjustable intensity

· High stability internal clock

· Wide DC voltage supply range


Instrumentation and testing, onboard & in harsh environments:

· armoured and heavy-duty military and civil vehicles

· flight testing / certification of manned aircraft

· railway vehicles testing

· ship and vessel trials …


gle/TCD-100 is available in three variants that support different kinds of time source.  This unit decodes and displays the input time as Hours, Minutes and Seconds on a six digits LED display as  HH : MM : SS.
Its intensity is user adjustable via a front panel selector switch.
In the absence of an applied time source input it shows the internal clock and the displayed colons flash at 1Hz rate.
GLE/TCD-100 is housed in a robust flange mountable milled aluminum enclosure, designed to meet “Safety of Flight” requirements.

gle/TCD-100-OEM is the board-level version of the gle/TCD-100 Time Code Display, it provides time visualization capability for existing or new OEM products. Different display sizes and LED colours are available on request.

Technical Specifications 

Time Input


gle/TCD-100-B01 (*) IRIG B122 1 kHz Time Code, referred also as modulated IRIG B.

gle/TCD-100-B02 IRIG B002 serial Time Code, TTL level. Referred also as non-modulated IRIG B.

gle/TCD-100-N01 GPS NMEA RS232 serial format, 4800 bps, GGA or RMC messages.


Six character, seven segment, LED, Red. Character Height: 7.6 mm [0.3 Inches].


Controllable by front panel. screw-driver, 16 positions/ rotary switch.

Internal Reference

Temperature compensated crystal oscillator, TCXO ± 5 x 106.

Power Supply

10 to 36 Volts DC, approx 2 watts @ maximum brightness.


Milled aluminum black anodized, 90 x 25 x 50 mm (W x H x D) [approx. 3.5 x 1 x 2 inches],

rear panel connector excluded.   


Less than 100 grams [less than 3.5 ounces]

Temperature Range

Operating -10°C to +60°C


0 ÷ 95% RH non-condensing


Designed to withstand up to 20 g in all directions


Designed to withstand up to 20 g per MIL-STD 810F


Designed to withstand up to 40 g per MIL-STD 810F

(*) On request, gle/TCD/100-B01 can be supplied with IRIG B002 non modulated serial Time Code output.