SteveH Posted July 20, 2013 Report Share Posted July 20, 2013 A few months ago I purchased a TYT TH-9000 UHF mobile radio from Main Trading Co. in Texas. I settled on this model as I wanted a Part 90 radio covering the 70 cm ham band plus the GMRS and public safety frequencies. So far I am quite happy with it: the sensitivity seems good, power output (45 watts max) is good, audio (TX and RX) is fine, etc. The instruction manual is much better than the manuals for some other Chinese radios but a few of the instructions are a bit incomplete and require some trial and error. (Keep a notepad handy for writing down what you really have to do.) Programming with the cable and TYT software is quite straightforward. I had considered getting one of the dual banders that are now out but I've been concerned about the mixed reviews plus I really don't need another daul bander - I already have two Kenwood D710s. The one thing I don't like about this, and the other Chinese mobiles, is that there's no data port. While not an issue for GMRS, I do a lot of datamodes. There is a tipoff that the radio might be almost digital ready - there's a taped over DB9 connector hole at the rear of the radio, just like the Alinco mobiles have (except that the Alincos actually have the connector). I did some digging and stumbled on some information about an internal connector on the main board. This resides athttp://www.slvrc.org/220band.htm and is attributed to VA3OT. Here are the pin assignments:Pin Function1 Ground2 Tx Audio3 COS4 Rcv Audio5 PTT6 + 5 VdcA mating plug with wires attached can be purchased from Digikey , Part # A100196-ND for $1. 39.I purchased a few plug assemblies (the plug comes with 8 inches of wire) and opened the radio with a #9 Torx driver. As it turns out, the plug has a couple of tabs that have to be sheared off with a pen knife but otherwise it fits fine. I've yet to wire it up for digital but it's good to know that I'll be able to. Also, the connections would also make it easy to wire up two radios in a repeater configuration. Does anyone else here have a TH-9000? Steve Quote Link to comment Share on other sites More sharing options...
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