Chapter 22 Equipment Connections; Connecting Equipment For Remote Control; Connecting Other External Equipment - Kenwood TH-D7A Instruction Manual

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CONNECTING EQUIPMENT FOR REMOTE CONTROL

2
Make connections as shown when remotely controlling
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equipment.
4
5
6
7
8
9
Ø2.5
SP jack
plug
10
11
MIC jack
12
13
Note 1
14
15
Note 1: Voltage is developed across the 100
in the transceiver. When 2 mA flows, approximately 3.3 V is
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developed.
17
Note 2: A 10 F capacitor is not required in the following cases:
When the other equipment has DC blocking capacitors.
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When a 2-terminal electret condenser microphone is used.
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20
21
22
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96
EQUIPMENT CONNECTIONS
External
speaker
Ø3.5
plug
External
microphone
Note 2 10 F
resistor in the 3.5 V line

CONNECTING OTHER EXTERNAL EQUIPMENT

When connecting an external speaker, an external
microphone, or other equipment such as a TNC for
packet radio to the SP jack or MIC jack, refer to the
diagram below.
Speaker
SP
Ground
3.5 V
100
3.5 V
MIC
MIC
PTT
PTT
Note 1
Note 1: Voltage is developed across the 100
in the transceiver. When 2 mA flows, approximately 3.3 V is
developed.
Note 2: A 10 F capacitor is not required in the following cases:
When the other equipment has DC blocking capacitors.
When a 2-terminal electret condenser microphone is used.
External
Ø2.5
speaker,
plug
TNC RX, etc.
Ø3.5
plug
External
microphone,
TNC TX, etc.
Note 2 10 F
resistor in the 3.5 V line