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- Newsgroups: rec.radio.amateur.misc
- From: byon@lynx.cecs.csulb.edu (Byon Garrabrant)
- Subject: Yaesu FT-5100 CAT/Remote Control Mike Interface
- Message-ID: <C69CuA.Cr@csulb.edu>
- Sender: news@csulb.edu (News Administration/Rumor Bureau)
- Organization: Cal State University, Long Beach
- Date: Thu, 29 Apr 1993 18:32:33 GMT
- Lines: 59
-
- I own a FT-5100 and became interested in the Remote Control Mike, not
- for its wirelessness, but because it can control most of the radio's
- features via a serial data stream through the mircophone jack.
- Although I do not own the wireless mike, I was able to build an
- interface between my PC and my 5100. It is somewhat similar to the
- CAT interface I have built for my FT-757 HF rig, but mostly like the
- interface described in the FT-912R manual (loaned to me via a friend
- from Yaesu). I have recently been working on a micro-controller
- based radio controller which I use for transmitter hunts, and other
- ham related activities, and I plan to allow it to control my 5100
- soon, but so far I have only controlled the radio from my PC. When
- using my PC as the source for the serial data, I used a MAX232 chip
- for a level conversion between the +/- 12 volts levels on the
- computer and the 0-5 volt levels on the radio.
-
- The serial data paramaters are 4800 N82. The commands sent to the
- radio are simple one byte instructions. The RMC mode ON command (16)
- must be sent before any other command. When the RMC mode is ON, a
- small LCD "RMC" icon will light on the display (see owners manual
- under Display). Also, the Vol, Sql, and Bal knobs are disabled when
- in the RMC mode because they will be controlled via serial commands,
- but all other buttons are still active.
-
- The commands are as follows:
-
- 0 - RPT 12 - CALL 24 - SQL Up
- 2 - REV 14 - BAND 26 - VOL Up
- 4 - MHZ 16 - RMC 28 - BAL Right
- 6 - D/MR 18 - SUB 30 - BAL Left
- 8 - TONE 20 - PAGE 32 - SQL Down
- 10 - LOW 22 - F/W 33 - VOL Down
-
- The interface I built simply wired mike port pin 7 to serial ground
- and pins 1 and 3 each through a diode then together, to the serial
- source. Note: I am not a hardware person! Use this hardware at your
- own risk.
-
- +----1 7-------------- GND
- | 2 8 6 (These can be connected to a MAX232
- | +--3 5 +-+-------- SER IN or the FIF-232C pins 1 and 3)
- | | 4 | |
- | +--->|---+ |
- +----->|-----+
-
- You can wire 1 and 3 together first, then through 1 diode, but that
- disables the UP and DOWN buttons.
-
- I will continue to study this more. If anyone would like to know
- more, or has any corrections or feedback, please email me.
-
- 73 Byon
-
- ---------------------------------------------------------------------
- Byon Garrabrant KD6BCH byon@csulb.edu
- ---------------------------------------------------------------------
-
- --
- Byon Garrabrant KD6BCH byon@csulb.edu
-