Th-9000d Manual
Venice Sassone
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So I mounted my Wouxun kg-uv920P-A in my car with the ability to hot swap it out and take it into the house to use as a base station. Unfortunately my inner sloth got the better of me (I got lazy) and I ordered a new mobile to keep in the house. So I picked up the TYT TH-9000 UHF model for $160.00.
For me, this unit doesn't meet my needs. Since I live in an area where there are few repeaters in range, I am constantly scanning GMRS frequencies with open CTC and DCS codes. With this unit I either must listen to the constant static or not be able to scan properly.
For someone who primarily uses the same channels with the same CTC or DCS codes this unit would work great and at a great price! The product quality seems to be very good and it has nice features. I would recommend getting the programming cable (mine came with one) and software (free to download from TYT) as the UI is rather confusing and the manual is little help.
Thanks for the report, I am often tempted by the price as in "hey why not". I took a chance with the Anytone Dual Bander that I did a previous review on, a good radio for the price but I am still not willing to praise it. For my money the best UHF only radio out there is the Icom 6021 128 ($260) channel or its cousin the 6011 8 channel ($220). I have the 6021 mobile and love it. Loud on both ends and very, very stable. Great performers, period!
both of my Kenwood repeaters and 8180 needed tuning, but that isn't out of the ordinary for how I like my receivers to work. I had my 8180 too hot when I first did it. couldn't get the squelch to go tight at all. my 850's open at .23uV on their own, w/preamp my private one will do .14-.15. the city one I never tested through the RX network. one of these days I'll check it and the effective receive sensitivity, should take a half hr to do but I have to take the network off the air to do that.
Keep a eye on your new Wouxun kg-uv920P-A,I am on my 2nd one,the 1st lost all power stopped transmitting and was replaced by the local dealer I bought it from.The 2nd unit has a issue with the alpha-numeric display it will scramble into all kinds of letters and symbols while in manual mode but only on the left side.
You can set the left side to say Wouxun with menu 8 and scan with the right side,my dealer replaced the head but after about 2 months the new head started doing the same thing and I find this irritating.I like some of the features especially the non-standard pl tones but do not like not being able to monitor one side while the other is scanning.
I thought each side operated independant but apparently it does not at least I haven't figured out how to do it yet.One more thing is if you look at the meter when you transmit it doesn't work at times but you are still transmitting along with receiving a signal you can look at the signal strength and it will open the squelch unless it is a strong signal .I would say this radio still has a few bugs but still has potential with a few upgrades to software and volume control.I hate to hit scan everytine I change volume level plus the UHF side speaker is weaker than VHF even with external speakers.
That is what I find funny that neither side can be scanning.My Alinco DR-635T will scan both sides at once VHF one side and UHF on the other and has different volume controls and use the same speaker.I have never really had any problem using it that way.The book only shows/tells about scanning the main band or sub-band not both but I found a trick to do both and it works quite well,only drawback if you want to use either band you have to stop it from scanning on both side but all you have to do is hit the V/M button to stop it all.To scan both side you set main band VHF to scan the hit the band button and it switchs VHF to sub band and UHF to sub band just hit scan again and both will scan....William
I tried doing that and when I tried to change to other band it stopped scanning on the first band. So both bands turned on, scanning in VHF as primary, hit the BAND button to switch to other band, when I did it stopped scanning on Primary and didn't even switch to secondary. Tried this with the VFO button as well, in channel mode and VFO mode.
I was told yesterday by my local dealer they would take care of my Wouxun mobile radio and not to worry,the dealer also told me as soon as they sell out of those he will not order anymore unless requested by a customer,maybe this one will actually work as it should for me,fingers crossed...William
Luckily I have not had any real issues with mine. I will eventually retire it and put my Yaesu in the car, but that is after I get the ICOM IC-7100 I have been drooling over. That of course is about 4-6 years down the road.
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Any suggestions for free Windows 7 serial port capture software? I am going to try portmon and usbsniffer, but also saw this:[[ ]]
Also, once I have the capture, are there any other memory formats descriptions that I can review to understand how the radio manufactor's format their memory?
Once you are able to download an img cleanly from the radio, save it. Then change the first memory channel in the radio very slightly. Now download another img from the radio. Use hexdump and diff to compare the two imgs. You should be able to determine what changed when the memory was modified. This will help you determine the start of the channel list and maybe other details about the channel you programmed. Change the second channel and repeat the process to determine the length of each channel record.
Initial decoding of the Channel Memory Map (see attached file). It appears that the memory map for the TH9000 is close to the Anytone 5888, so I'm using it as a guide. There are significant differences, however. The upload/download protocol looks the same. I have been able to confirm all the basic channel settings up to CTCSS. I have not started on the DCS or Cross mode settings yet, so that is not included. I'm including the file here, in case folks are interested, and I will create a patch for including this into source once I have a more complete file.
I'm proposing to use the file name "tyt_th9000_vhf.py" for the chirp/.py file, as the th9000 has several models for vhf, uhf and 6 meter bands. However, the model naming convention in chirp appears to use several different conventions. I would appreciate comments on that as well.
If it's really similar, I'd prefer a subclass of the Anytone with appropriate changes made. It may be easier to do it as a separate file first and then consult the differences before merging, but I'd really like to avoid two effectively identical drivers in the tree with different names. We have a bit too much of that right now, although some are very good about sharing code. See the Baofeng UV-5R driver for an example.
I've been using the anytone as a guide, so I'll get all the changes/differences together, to see if it warrants a submodel of the anytone, or a new model class. So far, it appears there are different data fields for the dcs coding, and a number of different options (those are less of an issue). I did review the baofeng approach, but my initial impression is that the Baofeng differences are different ident versions. The difference between Anytone and TYT appear to require different class structures, and different class methods. I'll have to see how the global settings map works, and see how close they are.
Also, It would be nice to have a wiki page on getting started with a new model - things like suggestions on setting up the serial port monitoring, documentation on memory map conventions, documentation on the model classes, etc. I don't mind winging it, but it would may some me some time downstream. I can add some of this based on my recent experience with getting this set up. In particular, getting portmon working correctly took a couple a days because of a couple of non-intuitive options (setting hardware flow ctl for the usb serial port, setting the max length, and setting the filters so that it was less chatty.).
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