Comments on: Yaesu FT-8xx CAT perl module http://www.0xdecafbad.com/2009/08/yaesu-ft-8xx-cat-perl-module/ movl eax, 0xDECAFBAD Sun, 09 Oct 2011 01:27:54 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: trixter http://www.0xdecafbad.com/2009/08/yaesu-ft-8xx-cat-perl-module/comment-page-1/#comment-205 trixter Thu, 04 Feb 2010 11:10:10 +0000 http://www.0xdecafbad.com/?p=188#comment-205 Bill: I do not think tuners use the CAT command set. I think they use the TUN command set (which is totally different from what I know). I may be wrong on this, I have not looked at it. I have an LDG tuner and may investigate that a bit. I thought I read somewhere that the tuner stuff is based on a +12/-12 voltage but that may have just been for the ATAS antenna. Basically the way tuners appear to work is: 1. turn transmit power down (5w normally) and mode (SSB doesnt work well for tuning purposes) - not all tuners do this! 2. the tuner adjusts L/C based on what it thinks it should be (some use memories to store the state of the relays so they can tune faster) 3. restore transmit power and mode If you wanted to do this via CAT instead of the TUNE method you would have to read the current state for anything you are going to change (mode, tx power), then set them to what you need them to be for your tuner to operate (5w AM for example) and perform your tuning operation, then restore the state to what it was before you started. Bill: I do not think tuners use the CAT command set. I think they use the TUN command set (which is totally different from what I know). I may be wrong on this, I have not looked at it. I have an LDG tuner and may investigate that a bit. I thought I read somewhere that the tuner stuff is based on a +12/-12 voltage but that may have just been for the ATAS antenna.

Basically the way tuners appear to work is:
1. turn transmit power down (5w normally) and mode (SSB doesnt work well for tuning purposes) – not all tuners do this!
2. the tuner adjusts L/C based on what it thinks it should be (some use memories to store the state of the relays so they can tune faster)
3. restore transmit power and mode

If you wanted to do this via CAT instead of the TUNE method you would have to read the current state for anything you are going to change (mode, tx power), then set them to what you need them to be for your tuner to operate (5w AM for example) and perform your tuning operation, then restore the state to what it was before you started.

]]> By: Bill http://www.0xdecafbad.com/2009/08/yaesu-ft-8xx-cat-perl-module/comment-page-1/#comment-172 Bill Wed, 02 Dec 2009 13:50:16 +0000 http://www.0xdecafbad.com/?p=188#comment-172 Does anyone know of a list of serial port codes a tuner would use with the 897/857 radios? Does anyone know of a list of serial port codes a tuner would use with the 897/857 radios?

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