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Digital – – – – Analog
Digital
Digital
Digital
Analog
Analog
Analog Mixed
Mixed
Mixed
Mixed mode connection
mode connection
mode connection
mode connection
• Primarily operate in Analog mode
• Analog TX signal can be RX by Analog/Digital radios
• Digital TX signal can be RX by Digital radios
• One repeater operates in Digital mode and other repeater operates in Analog mode
• Analog radio operates in Analog mode
• Digital radio operates in Digital mode when communicating with other Digital radios
• Digital radio operates in Analog mode when communicating with Analog radios
Analog
Tx = f
1
Rx = f
2
Group A
Analog
Frequency
Frequency
Frequency
Frequency
f
: Analog Uplink (both Digital & Analog radios)
1
f
: Analog Downlink
2
f
: Digital Uplink
3
f
: Digital Downlink
4
This is an example of Digital and Analog mixed mode
operation when introducing digital system components
into an existing analog system. This system primarily
operates in Analog mode while utilizing the digital
features that communicate between the digital radios.
System requirement (One site)
System requirement (One site)
System requirement (One site)
System requirement (One site)
Descriptions
UHF FM Repeater
UHF Digital Repeater
TX Antenna
RX Antenna
5
Applications
5-1
Digital-Analog Mixed System
Analog
Tx = f
2
Rx = f
1
Analog Repeater
Analog
Analog
Analog
Tx = f
1
Rx = f
2
Model Number
Quantity
IC-FR4000
IC-FR6000
Analog
Analog
Tx = f
Rx = f
Group A
Analog
Cloning Software Setup
Cloning Software Setup
Cloning Software Setup
Cloning Software Setup
• Set the Talk Back ON in the scan list setting for the
transceivers in Group C to transmit an analog signal
when received from Groups A and B
• Set the same Scan List for Analog and Digital CH
• Set the CH Type Analog for Analog CH and CH Type
Digital for Digital CH
Digital
Tx = f
4
Rx = f
3
Digital Repeater
Digital
Digital
Tx = f
1
3
Rx = f
2
4
Group C
Digital
38
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