Micom 3T Operations Instructions Page 138
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MICOM-3F/3T/3R HF-SSB Owner’s Guide
120
Connectors
MICOM-3F/3T Microphone Connector
The microphone connector is located on the lower part of the radio front panel. Table 3 lists the
functions of the microphone connector pins.
Table 3. MICOM-3F/3T Microphone Connector, Pin Functions
Pin Designation Description
1 SWA+ Power output to the microphone
2 RXD Serial communication line (input)
3 TXD Serial communication line (output)
4 GND Ground line
5 MIC AUDIO
Input audio signals generated by the microphone (600 Ω
impedance; 100 mV tone is required for full output power).
6 PTT MIC Activates transmission by short to ground.
7 MONITOR Mutes the speaker before transmission is enabled (short
momentary to ground to open speaker).
8 AUDIO OUT
Receive audio output to earphone (600 Ω, 300 mVRMS)
MICOM-3R Audio Connectors
The audio connectors are located on the lower left part of the radio front panel. An external speaker
and handset can be plugged into both connectors. Table 4 lists the functions of the audio connector
pins.
Table 4. MICOM-3R Audio Connectors, Pin Functions
Pin Designation Description
A GND Ground line
B HANDSET
AUDIO
Receive audio output to external speaker
C PTT MIC Activates transmission by short to ground
D MIC AUDIO Input audio signals generated by the microphone
(600 Ω impedance; 6 mV tone is required for full
output power)
E AUDIO OUT
Receive audio output (600 Ω) to earphone
F SWA+ Power output to microphone
- Owner’s Guide 1
- MICOM-3F/3T/3R 3
- HF-SSB Transceivers 3
- Table of Contents 5
- Acronyms 7
- Performance Specifications 11
- Warnings, Cautions and Notes 12
- General Safety Precautions 12
- Caution 13
- Facilities 16
- Vehicles 16
- Driver Safety 17
- Operational Warnings 17
- Intentionally Left Blank 18
- Transmitter Features 20
- Receiver Features 20
- Frequency Sources 20
- Power Source 21
- CW Keying Operation 21
- Programmable Features 21
- MICOM-3F Front Panel 22
- MICOM-3T Front Panel 23
- MICOM-3R Front Panel 24
- Rear Panel (All Models) 25
- LCD Display Functions 26
- RF Level Indications 27
- Audible Indications 27
- General Procedures 28
- Function Keys 29
- Scroll (MORE) Key 29
- Up/Down Scroll Keys 29
- Toggle Mode 29
- Alphanumeric Edit Mode 30
- Numeric Edit Mode 30
- View Mode 30
- Message Attached Alert 30
- (MICOM-3F/3R only) 31
- The Menu 32
- What you can Select 33
- Basic Operating Instructions 34
- Reflected 35
- Using the Channel Mode 36
- Channel Mode Options 37
- Choosing a New Channel 39
- Using the Frequency Mode 40
- 14,000.00 41
- F 15,000.00 41
- VFO Operation 43
- F 14,000.00 44
- F 15,_00.54 44
- Frequency Mode Options 45
- Storing Frequencies 47
- Using the Scan Mode 48
- Using the BIT Mode 49
- Locking the Radio 50
- Changing the Password 51
- Scanning 52
- Sounding 52
- Sounding Cycle Time 53
- LQA Memory 54
- Bidirectional Handshake 54
- Selective Calling 55
- ALE Addressing Method 55
- Address and Call Types 55
- Group Addresses 57
- AllCall Addresses 58
- AnyCalls 58
- Using the MultiNet Feature 59
- Messages 60
- Using the Caller Stack 60
- Quick Call 60
- Entering the ALE Mode 61
- ALE Mode Options 62
- Receiving Calls in ALE Mode 63
- ➤ Receiving a net call: 64
- ➤ Receiving an AllCall: 64
- ➤ Receiving an AnyCall: 64
- Link State 66
- Disconnecting Calls 71
- CH 3 30% 74
- Using Autodial 76
- Sending Messages 77
- Other Types of Calls 79
- Transmitting AIICalls 80
- Transmitting Net Calls 83
- Transmitting Group Calls 84
- END CALLING 85
- Transmitting AnyCalls 86
- ➤ To transmit an AnyCall: 87
- Transmitting Wildcard Calls 89
- Transmitting a Self Call 91
- Using the Inlink Function 95
- Using the Programming Mode 96
- Programming Channels 100
- Selecting Radio Parameters 102
- Setting Radio Options 104
- ALE Programming 105
- Programming Nets 106
- Default Values 107
- Setting the Net Options 108
- Directory Parameters 108
- AMD Message Configuration 109
- ALE Options Configuration 109
- Auto Dial Parameters 111
- Storing ALE parameters 111
- PROGRAMMING 112
- Introduction 113
- Using the VP-116 Unit 114
- Using the Vocoder 118
- Programming the Vocoder 120
- Erasing the Stored Keys 121
- GPS Receiver Functions 122
- GPS Antenna 123
- Operating the GPS Receiver 124
- First-Time Operation 125
- Operating Instructions 126
- What to do if … 127
- Installation 128
- Green (Output 1 - max. 5A) 129
- Black (Ground) 129
- Red (Output 2 - max. 25A) 129
- 5A GND 25A 129
- 5A - 25A 129
- MICOM-3R Installation 130
- MICOM-3F Installation 131
- MICOM-3T Installation 131
- Installation Procedures 133
- Throughly 134
- Clean this Area 134
- Floor Surface 134
- Microphone Clip 135
- Important 136
- MICOM-3T Final Connections 137
- Operational Checks 137
- Connectors 138
- Antenna Connector J2 139
- Accessories Connector J5 139
- DC Power Connector 141
- Vehicular Noise Reduction 141
- Maintenance 142
- Using BIT 143
- Troubleshooting 145
- Service 147
- Appendix A 148
- 3 5-50 Watt HF-SSB 148
- Backpack Transceiver 148
- Purpose and Use 149
- Equipment Description 149
- Unpacking and Inspection 152
- Backpack Carrying Harness 153
- Warning 155
- Installation of Whip Antenna 157
- List of Procedures 162
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