Dave, K8CC, wrote:
> -----Original Message-----
> From: owner-cq-contest@contesting.com
> [mailto:owner-cq-contest@contesting.com]On Behalf Of David A. Pruett
> Sent: Saturday, April 10, 1999 8:50 PM
> To: v31jp@logical123.net; CQ-Contest
> Subject: Re: [CQ-Contest] Voice keyers
>
> Joe,
>
> Tony, AE0M out in W6 sent me the schematic for exactly what you're
> describing - i.e., a LPT to Yaesu interface for the DVS-2. For
> the life of
> me I can't put my fingers on it at the moment, but you might try to get in
> touch with him (dunno if he got a new call).
>
> 73,
>
> Dave/K8CC
Dave, I will never get a new call, I LIKE this one!
Here it is again...
DESCRIPTION OF FUNCTION OF DVS PORT
PTT DVS0 DVS1 Function
"1" "0" "0" Receiver Audio at Voice Out, Voice In muted
"0" "0" "0" Voice Out and In both muted
"1" "0" "1" Transmitter Mic. audio at Voice Out, Voice In muted
"0" "0" "1" Transmitter Mic. audio at Voice Out, Voice In muted
"1" "1" "0" Voice Out muted, Voice In signal at Receiver Audio output
"0" "1" "0" Voice Out and In both muted
"1" "1" "1" Voice Out and In both muted
"0" "1" "1" Voice Out muted, Voice In signal at Receiver Audio output
and Transmitter Audio
"0" means pin at ground, "1" means pin at Vdd
The Yaesu DVS port
Pin# Name Description
1 VOICE IN Input from Sound Blaster Speaker output
2 VOICE OUT Output to Sound Blaster Mic input
3 PTT Push To Talk control line
4 Vdd Power Supply, +12V for FT-990 or +9V for all others.
5 DVS0 DVS control line
6 DVS1 DVS control line
7 GND Ground
DVS port to SOUND BLASTER for use with W9CFs "SBDVP.EXE"
to Sound Blaster Mic input-+
from Sound Blaster Speaker output----+ |
(USE A 1:1 TRANSFORMER) +---^-----^-------+
| | | \>| 2N3906
| | | |----+-----+
| | O /-| \ \
+---------+---^--O4 2 5O----+ / /
2N3906 |</ | +-O1 3O-+ \ 330 \330
+--| | O6 7O | SW / /
\ |-\ | | ^ | | ON AIR \ \
/ | | | DVS | | ___| | |
\ 330 | | | | +-O O----+ |
/ | | | | | |
\ | 2N3906|</ | | | |
| +-------| | | | |
| \ |-\ | | | |
| / +-----+ | | |
| \ 330 | | |
| / | | |
| \ | | |
| | | | |
| +----------------------^-------+----+ |
| | | |
+----------------------------^-------^----------+
| | |
1000 | |/ 2N3904 |
Printer Port pin 16, ------------/\/\/--------^-----| |
| |\ |
| > |
| | |
Printer Port pin 1, Strobe--------------------^--------+ |
1000 | |/
Printer Port pin 2, D0-----------/\/\/--------^----------------|
| |\
| 2N3904 >
| |
Printer Port pins 18-25-----------------------+-------------------+
DVS port to SOUND BLASTER for use with LTAs "CONTEST VOICE BLASTER"
to Sound Blaster Mic input-+
from Sound Blaster Speaker output----+ |
(USE A 1:1 TRANSFORMER) +---^-----^-------+
| | | \>| 2N3906
| | | |----+-----+
| | O /-| \ \
+---------+---^--O4 2 5O----+ / /
2N3906 |</ | +-O1 3O-+ \ 330 \330
+--| | O6 7O | SW / /
\ |-\ | | ^ | | ON AIR \ \
/ | | | DVS | | ___| | |
\ 330 | | | | +-O O----+ |
/ | | | | | |
\ | 2N3906|</ | | | |
| +-------| | | | |
| \ |-\ | | | |
| / +-----+ | | |
| \ 330 | | |
| / | | |
| \ | | |
| | | | |
| +----------------------^-------+----+ |
| | | |
+----------------------------^-------^----------+
| | |
1000 | |/ 2N3904 |
Printer Port pin 3, D1-----------/\/\/--------^-----| |
| |\ |
1000 | > |/
Printer Port pin 2, D0-----------/\/\/--------^--------^-------|
| | |\
| | 2N3904 >
| | |
Printer Port pins 18-25-----------------------+--------+----------+
--
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