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Connecting to your Radios
The HF/VHF radio connector on the KAM’98 rear panel is a 9-pin DB style con-
nector, with pin layout as shown below:
[diagram of DB-9 pin connector]
Pin
Pin
No.
name
Function
1
TXA
Transmit audio (AFSK out)
2
XCD
External carrier detect
3
PTT
Push-to-Talk
4
A/D-3
Analog-to-digital input 3
5
RXA
Receive audio (AFSK in)
6
GND
Ground
7
EXT-IN
External input for Power/Reset*
8
CTRLB
Control line B
9
GND/KEY
Ground or CW Key line *
* See the jumper section for details.
+ Note: Also see the Auxiliary Port for additional connections.
Pin 1:
Connects to the microphone input of your radio, providing the audio sig-
nal to be transmitted.
Pin 2:
When a ground is applied to this pin, the KAM’98 will not transmit pack-
ets. This pin is normally used as an external means of supplying carrier
detect, but can also be used as a “hardware” transmit inhibit.
Pin 3:
When the KAM’98 needs to key your transmitter, it will apply a ground to
this pin. This is an open-drain circuit and requires a positive voltage from your
radio (not to exceed 50 volts or 200 mA).
Connecting to your Radios
Appendix A: Advanced Installation
KAM’98 v 8.3
329
User’s Guide
Содержание KAM 98
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Страница 132: ...Getting Started Other Topics User s Guide 114 KAM 98 v 8 3...
Страница 160: ...blank page Non Packet Modes of Communication RTTY Operation User s Guide 142 KAM 98 v 8 3...
Страница 342: ...blank page Command Reference KAM 98 Commands User s Guide 324 KAM 98 v 8 3...
Страница 376: ...ASCII Chart paste in page 1 of 2 ASCII chart Appendix E Additional Information ASCII Chart User s Guide 358 KAM 98 v 8 3...
Страница 378: ...KAM 98 Parts Layout Appendix E Additional Information KAM 98 Parts Layout User s Guide 360 KAM 98 v 8 3...