[na-user] Re: Voice Blaster to DVS port
Tony and Celia Becker
becker@shell.portal.com
Tue, 10 Sep 1996 21:00:10 -0600
At 03:33 PM 9/10/96 +-100, ke7gh@contesting.com wrote:
> c) interface to Yaesu DVS jack
Here you are.
DESCRIPTION OF FUNCTION OF FT-990 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 +12V
WIRING DVS PORT 8-BIT SOUND BLASTER FOR USE WITH LTAs "CONTEST VOICE BLASTER"
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 +12V Power Supply
5 DVS0 DVS control line
6 DVS1 DVS control line
7 GND Ground
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 | > |/ 2N3904
Printer Port pin 2, D0-----------/\/\/--------^--------^-------|
| | |\
| | >
| | |
Printer Port pins 18-25-----------------------+--------+----------+
AE0M, Tony Becker - becker@shell.portal.com - Silicon Valley, U.S.A.
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