[GE] GE MDX?

[Mark Cobbeldick]

Glenn,
Too bad you don't have the entire radio.  If you powered it on and the display showed:  BOOT DSP it would confirm my suspicions.  That radio sounds like one of the custom built TNP-MDX mobiles. 

TNP = Taiwanese National Police

These were custom built (aka: factory SPECIAL) units which were manufactured in the 90’s.  Bandsplit of 585-505 MHz, VGE encrypted AEGIS digital voice, narrowband only (2.5 kHz deviation).

There was a companion custom M-PA portable too, called the TNP-MPA, which was unique because it was programmed with EDACS-2 software, not the normal EDACS-1 programming application.

The last I heard (2005), Bill Glahn at New London Technology had gotten his hands on some surplus stock units and were selling them on the internet minus the crypto board.

Not much, but I hope it is helpful.

73,
Mark Cobbeldick
KB4CVN



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Message: 1
Date: Sun, 24 Jul 2011 22:37:04 -0400
From: Glenn Little WB4UIV <glennmaillist at bellsouth.net>
Subject: [GE] GE MDX?
To: ge at mailman.qth.net


I have a board that I picked up at a recent hamfest.
This is 19D901958G5 with a board number of 188D5062G4.
LBI 39017E covers through group 3.
Board 188D5062G4 covers 585-505 MHz.
The helical filters cover 470-492 MHz (group 3).
The VCO is 19D901958G5 covering 470-512 MHz.
What would be different between G3 and G5?
Is this board good for anything but parts?
Is the VCO coverage of 470-512 the actual output frequency or is it 
offset by receiver IF?

Thanks for any help.
73
Glenn
WB4UIV