home *** CD-ROM | disk | FTP | other *** search
- Date: 5 May 89 16:48 PST
- From: ALLYN@SLACVM.BITNET
- To: MBRAMWEL@UWO.CDN
- Subject: ft727r CAT interface
-
-
-
- FT-727R CAT System Interfacing and Control
-
- This information describes the hardware and software requirements of
- the CAT (Computer Aided Tranceiver) System in the FT-727R.
-
- Connections
-
- Four connections are used by the CAT SystemL three at the CAT jack,
- illustrated below, and one (Signal Ground) ar the outer contact of the
- MIC or EAR jack.
-
- DO NOT SHORT THE OUTER CONTACT OF THE CAT JACK TO GROUND!!!
-
- [Diagram of the CAT plug:
-
- Looks like a stereo audio jack of the appropriate size.
-
- The outer sleeve is +6 to +12 V DC (Battery Voltage) I do not think
- this line needs to be connected.
-
- The middle contact is the Serial KeyCode Input.
-
- The center contact is the Serial Meter Output (00h to 0Fh).
-
- See the manual for further description.]
-
- Data Format:
-
- All serial data consists of single byte binary codes sent at 4800
- baud, TTL levels, with two INVERTED stop bits and one INVERTED start
- bit.
-
- Key Codes:
-
- CAT Control consists of duplication the keystrokes that can be made on
- the tranceiver keypad by sending the corresponding keycodes to the
- Serial Keycode Input contact of the CAT jack. The most significant
- four bits (MSD) correspond with the key column and the least
- significant four bits (LSD) correspond with the key row. The Function
- key (on the side of the tranceiver) is simulated by setting bit 7.
- Results are identical to those described for manual operation in the
- FT-727R Operating Manual. Serial Meter Output is sent approximately
- every 100 ms while receiving.
-
- [Table for the codes. The lines in [] are the original values in the
- Yaesu handout, and are followed by the corrected lines as determined
- by KB7ABA. Remove the lines in [] to see what sould be the right table.]
-
- [ { FUNC F E D C B ]
- { FUNC 8 9 A B C
- MSD {
- [ { NORM 7 6 5 4 3 ]
- { NORM 0 1 2 3 4
-
- LSD
- V
-
- E +RPT SIMP -RPT PMS P SET
- 1 2 3 V c
-
- D SAV T T DEC T SET TX M S/CH
- 4 5 6 M MR
-
- B SAVE T ENC SCAN MC Shift
- 7 8 9 C <=>
-
- 7 LOCK BATT BEEP DUP Step
- * 0 # V/U D
-
-
-