Jump to content


Photo

TYT TH-9000 UHF Mobile


  • Please log in to reply
2 replies to this topic

#1 SteveH

SteveH

    Advanced Member

  • Members
  • PipPipPip
  • 47 posts
  • LocationMidcoast Maine, FN54kb
  • GMRS Callsign:WQQB941
  • Ham Callsign:KB1TCE

Posted 20 July 2013 - 02:44 PM

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 at
http://www.slvrc.org/220band.htm and is attributed to VA3OT. Here are the pin assignments:

Pin Function
1 Ground
2 Tx Audio
3 COS
4 Rcv Audio
5 PTT
6 + 5 Vdc

A 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



#2 edwardphi

edwardphi

    Newbie

  • Members
  • Pip
  • 1 posts
  • GMRS Callsign:WQRB311

Posted 15 April 2014 - 05:50 AM

I have this radio and I really appreciate the info that you posted about the digital connections. The only thing I have done so far, is to wire a modified Cobra HG-M75 power mike to the radio which turned it into a beast. I keep the mic set at 4 and it is clean and loud. I talk in a very low voice and this mic and radio combination is a perfect match. If anyone needs any info about this, let me know.
  • Logan5 likes this

#3 PastorGary

PastorGary

    Moderator

  • Moderators
  • 385 posts
  • LocationAlabama, Michigan, Tennessee, Mississippi, Wisconsin and Florida seasonally. Callsign available upon PM request.

Posted 15 April 2014 - 06:04 AM

Edward - Thanks for joining us here at the Forum... Welcome.  Thanks for the information.  As long as the radio FM deviation level is set correctly, that should work fine. Just make sure that the mic impedence is close to the factory original.


PastorGary -
Forum Moderator

[Weather Postings Copyrighted
TSRC - All Rights Reserved.]





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users