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Sunday
Feb162014

Motorola MTR2000 D-Star Repeater

I recently received a very interesting email from Dimitris SV1EDZ in Greece.  He sent me a link to a YouTube video showing a Motorola MTR2000 based D-Star repeater he built.

This is a 40W UHF repeater.  TX 438.8375 MHz -7.6 Mhz offset.

It uses the excellent ON8JL standalone D-Star Node as the D-Star controller.  You only need to add power, internet and a radio (or repeater) to get a fully functioning D-Star HotSpot or repeater.

As with most equipment from Motorola, the MTR2000 is very well engineered and is well suited to high duty cycle repeater operation.  It it rated for 100% duty cycle at full power.

The appropriate flat audio in/out, PTT and ground connections were found on one of the expansion connectors.

Dimitris has access to a LOT of nice test equipment to set up the deviation and tune the flatpack notch duplexer.

Dimitris told me that this repeater is always connected to REF045 C.

Seeing how other amateurs around the world are building their own D-Star compatible infrastructure is very encouraging!

I've uploaded all the photos that Dimitris sent me to the photo gallery.

You can find his YouTube Channel here!

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Reader Comments (1)

A very nice implementation and wouldn't look out of place at a commercial site - no clipleads & textas... :-)

July 7, 2014 | Unregistered CommenterNik VK3BA

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