DJ-MD5 trick

Do you find yourself struggling to access the micro-USB connector on your DM5 handheld? Did you know that the rubber cover can be rotated to get out of the way? 🙂

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APRS capability of Alinco DJ-MD5

As of this day, to the best of my knowledge, the MD5 does not support APRS via the DMR network.  Although there is a GPS equipped model which supports a distance measurements between two MD5’s, there is still no provision for APRS positioning.  I am pretty sure that this will…

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Inside the DJ-MD5 handheld

Just wanted to share a view of the md5 RF front end.   There is a number of aircore inductors at the filter section of the system.  One can observe the carefully oriented coils, to minimize undesired interaction between them.

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Alinco DJ-MD5 tx power measurements

Today at the lab, I had the idea of measuring and documenting the transmission power levels of a Alinco DJ-MD5 handheld transceiver.  This transceiver is a DMR capable handheld.  This kind of technology uses TDMA modulation to transmit digital packets down the operating ‘slot’, every ~30mS .  My setup for…

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