[DSTAR_DIGITAL] Re: Radio Control Software Recommendations Sought
--- In dstar_digital@yahoogroups.com, mungewell si...@... wrote: Appologies for thread-digging, No appologies this time... ;-) If one of you guys has the ability to rig up the mic to a scope (or C-IV interface) and post a capture, we might just be able to decode what these are doing... Someone has actually scoped out what these mic's do: http://tinymicros.com/wiki/Icom_HM-98/HM-133_Internals Confirms that PTT is software driven and opens up the possibility for 'psuedo-remote control'. Cheers, Simon VA6SDW
[DSTAR_DIGITAL] Re: Radio Control Software Recommendations Sought
Well these guys claim the remote digital control of PTT is possible! http://rpf-communications.blogspot.com/2008/11/breakthrough-with-icom-data-mics.html Appologies for thread-digging, but I'd really like to know the answer on this and don't have the spare cash to purchase a DataMic at the moment. It would appear that the DataMics contain a small micro which can communication with the rig to perform several functions. From the limited information available on the internet this may be CI-V, which would mean that a PC (or other micro) could 'control' the rig in a limited fashion. For a HM-98, HM-133 the mic has a 8pin RJ45: pin 1 - +8V pin 7 - GND pin 8 - data out For the HM-75A the mic has two connectors. Mic: tip - MIC mid - OPT (5V) ring - GND Speaker: tip - AF Out mid - CLONE (Data in/out) ring - GND If one of you guys has the ability to rig up the mic to a scope (or C-IV interface) and post a capture, we might just be able to decode what these are doing... Cheers, Simon VA6SDW
[DSTAR_DIGITAL] Re: Radio Control Software Recommendations Sought
Nope, no rig control on the ID-80. Doesn't the ID-80 support the HM-75A 'Remote Control' Mic? So this will allow a really limited remote control, should anyone crack the scheme Simon.
[DSTAR_DIGITAL] Re: Radio Control Software Recommendations Sought
The only DSTAR radio that has ACTUAL rig control is the ID-1 No PTT automated control there either... Well these guys claim the remote digital control of PTT is possible! http://rpf-communications.blogspot.com/2008/11/breakthrough-with-icom-data-mics.html -- For some time we've been working on a TalkSafe Microphone Splitter to operate with the Icom data mics. Like the other TMS devices this will allow you to use a TalkSafe and your microphone together, in this particular case either an HM98, HM133 or HM151. So in addition to the usefulness of the TalkSafe system, you can continue to drive safely /or have the freedom of moving around in your shack, AND you still have the full functionality of the microphone keys. Also, if the battery runs out on your Bluetooth headset, you can still transmit using the hand mic. This has been something of a challenge as all the functions, including the PTT, are digitally controlled. -- Simon VA6SDW
[DSTAR_DIGITAL] Re: Icom V82: Connectivity and Control for D-Star
2) Does the V82 support remote control via the 'clone' port, or is operation of this port limited to when a special 'clone mode' is entered? I picked up my 1st rig (IC-V82) at lunch time... no D-Star for a bit as I have to save up my pennies for that. So let the hacking begin. ;-) I couldn't find mention of any CI-V software that supports the V82, however looking at the serial line when using CS-V82 it does appear to be talking something like CI-V. The radio accepts the 'Clone/Information' without entering a special mode and replies nicely. I can emulate the sequence with 'CI-V test', however it does not display the response (even though I can see it on the serial port). -- Port opened by process CSV82.exe (PID: 1540) Request: 5/20/2009 7:00:17 PM.94264 FE FE EE EF E0 28 26 00 00 FD þþîïà(..ý Answer: 5/20/2009 7:00:17 PM.95764 (+0.0156 seconds) FE FE EE EF E0 28 26 00 00 FD FE FE EF EE E1 28 þþîïà(..ýþþïîá( 26 00 01 20 20 20 20 20 20 20 20 20 20 20 20 20 .. 20 20 20 00 07 05 06 32 39 36 45 33 2E 30 30 FD 296E3.00ý Port closed -- Cheers, Simon VA6SDW
[DSTAR_DIGITAL] Icom V82: Connectivity and Control for D-Star
Hi, I'm getting closer to getting a D-Star capable rig, most likely the V82 (mainly for the low entry price). I just wanted to check a few things... 1) It looks like the serial port is wired direct to the UT-118 module and connected with a 2.5mm stereo jack to D9 (or D25). Does this need a level shifter? 2) Does the V82 support remote control via the 'clone' port, or is operation of this port limited to when a special 'clone mode' is entered? 2a) If control is an option, is there Free (/OpenSource) software for controlling this radio? Cheers, Simon VA6SDW. PS. I found mention that the connector on/for the UT-118 is a AXN430C300, available via special order on Digikey. Thought I would mention as it was hard to find out.
[DSTAR_DIGITAL] Re: Icom V82: Connectivity and Control for D-Star
1) It looks like the serial port is wired direct to the UT-118 module and connected with a 2.5mm stereo jack to D9 (or D25). Does this need a level shifter? I found the service manual which shows the circuit for the UT-118 contains a MAX232, so input to radio is RS232 levels. 2) Does the V82 support remote control via the 'clone' port, or is operation of this port limited to when a special 'clone mode' is entered? I also found some programming software. By default it does not enable the DStar settings/options, but one would assume that its controlled by a bit set in the '.icf'. Can anyone forward me an example '.icf' from a unit with DStar fitted? Thanks, Simon.
[DSTAR_DIGITAL] External D-Star encoding.
I've read about the various projects with interfacing the UT-118 directly and feeding the output/input via a 9600baud input. Generally, is the encoded D-Star signal too delicate to feed over a mic/speaker input/output (in the way that APRS is)? [I'm trying to decide which HT to purchase, given that I might want to play with D-Star at a future time.] Simon.
[DSTAR_DIGITAL] Re: Compression/encoding on data-only transmissions
YAES. :-) (Yet another encoding scheme.) Yawn. :-) YAESTDSBT - Yet another encoding scheme that doesn't support binary transfers. Double Yawn :) Just to clarify (and be a pedantic little sod ;-) you can encode binary data into 2D barcodes with this scheme using Base 256 mode. Simon
[DSTAR_DIGITAL] Re: Compression/encoding on data-only transmissions
Sure, but don't forget that at ~900 bps throughput, 3116 numbers take a REALLY long time to transmit. (30s) With compression this would be 1588 codewords + 620 bytes of FEC, so really only 20s ;-) I'd definitely recommend trying to keep the packet sizes less than a few D-STAR frames, which is pretty short. One of the sweet spots for D-STAR data is probably SMS type messages. Short and sweet. If we had a FEC mechanism for a SMS message, that probably would be nice. Sounds interesting Simon.
[DSTAR_DIGITAL] Re: Compression/encoding on data-only transmissions
D-STAR Low Speed Data has so much promise, but Icom's serial port implementation severely handicaps implementation. From my limited (theoretical) experience I would have to agree. It looks like the D-Star serial implementation is a complete mess with data intermixed with control frames to/from the processor, which presumably kicks out what it does not like to the UT-115/118. What they probably should have done is provide a command level interface to poke/peek data into a tx/rx data buffer. If the control channel is running at 9600baud that would enable plenty of speed to keep a 900baud data buffer full/empty. Perhaps they did, and 'we' haven't worked out how to use it yet Looking at the schematics for the UT-115/118 at least there is the possibility of intercepting the serial lines to/from the module. Simon VA6SDW
