FT1000MP

& Mark V

Accessories

 

 

 

 

DVS-2 Truth Tables

FT1000MP and the DVS2 Connector by Tim, W2UI 

CNTL1

 

CNTL2

 

PTT

 

RESULT

MODE

0

0

0 = FLOAT

Receive            RCV Audio @ VOICE OUT                                 VOICE IN Muted

Normal receive with or without DVS.  Audio provided for other modes or recording received signal.

0

0

1 = GND

Transmit           Mic Audio Transmitted                                       VOICE OUT Muted                VOICE IN Muted        Rig Speaker Muted

Normal transmit with or without DVS.

0

1

0 = FLOAT

Receive            VOICE IN @ Rig Speaker                                     VOICE OUT Muted

Monitor/review messages using rig speaker/headphones.

0

1

1 = GND

Transmit           VOICE IN Transmitted                                         VOICE OUT Muted                                                     Rig Speaker Muted

Transmit recorded messages.  No monitoring.

1

0

0 = FLOAT

Receive            Mic Audio @ VOICE OUT                                   VOICE IN Muted                                                         Rig Speaker Muted

Record message.

1

0

1 = GND

Transmit           Mic Audio Transmitted Mic Audio @ VOICE OUT     VOICE IN Muted                                           Rig Speaker Muted

Transmit and record at the same time.

1

1

0 = FLOAT

Receive            VOICE IN @ Rig Speaker                                      VOICE OUT Muted

Monitor/review messages using rig speaker/headphones.

1

1

1 = GND

Transmit           VOICE IN Transmitted                                          VOICE IN @ Rig Speaker                                         VOICE OUT Muted

Transmit recorded messages and monitor using rig speaker/headphones.

 Note that for CONTROL inputs, the logic state 1 is the presence of +9 volts and the logic state 0 is a floating input.

VOICE IN is audio input at DVS2 pin 1.  Most interface circuits connect this to the sound card output through a transformer.

VOICE OUT is audio output at DVS2 pin 2.  Most interface circuits connect this to the sound card input through a transformer. 

THESE FEATURES WILL NOT BE USED.

 

CNTL1 = PLAY+RECORD

CNTL2 = PLAY

 

 

This site was last updated 08/27/07