LOOP Features

TRT800 Mode S Transponder

FIRST LOOK:

TRT800 MODE S TRANSPONDER
PRICE: £1530.00
IT seems more than likely that all light aircraft will have to carry Mode S from some point in the future. The current target date is March 2008 but that may move backwards.

If you haven't seen what a Mode S unit looks like, feast your eyes on this TRT800 available from Adams Aviation. As well as Mode S, the TRT800 also replies to Mode A, Mode C and has an IDENT capability that activates the Special Position Identification (SPI) pulse for 18 seconds.
Weighing in at just 0.7kg, the TRT800 is panel-mounted, works off 10 to 16V DC and employs one antenna, which is mounted on the bottom of the aircraft.

The unit is 6.6cm height and width, and 18cm deep; a standard 57mm cut-out is required. No forced-air cooling is required, but it's recommended.

At present, the CAA hasn't decided on a specification for Mode S transponders (ie, what it should do) which is why avionics manufacturers are holding back with designs.
Stephen Gosling, sales and marketing director from Adams Aviation says there at least three manufacturers looking to introduce Mode S transponders next year. If you don't want to wait until then this one can be bought for £1530 inc VAT.

Stephen told LOOP,"If you're currently building a light aircraft or your Mode C has just gone bang then fitting one of these TRT800s now is the right way to go. We can put you in touch with an approved installer. Please don't get your homebuilder mates to fit it as it needs a professional."
There is an'A' version of the TRT800 in the pipeline, says Adams. The 'A' version is shaped so when you take out your old Mode C transponder, the new Mode S one will slide straight in.
W: www.adamsaviation.com

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TRT800 Mode S Transponder