Icom FR6000 Series Sales Handbook - page 40
5-2
Digital-Analog Cross System
Digital
Digital
Digital
Digital ---- Analog / Analog
Analog / Analog
Analog / Analog
Analog / Analog ---- Analog Cross mode connection
Analog Cross mode connection
Analog Cross mode connection
Analog Cross mode connection
•
Analog TX signal can be RX by Analog/Digital radios
•
Digital TX signal can be RX by Analog/Digital radios
•
Repeater/Digital radio operate in Mixed-Digital mode
•
Analog radio operates in Analog mode
•
Analog repeater for Analog TX only
Linking
interface
(25pin)
Analog H/H
Digital H/H
Tx = f
2
CTCSS
Tx = f
1
Rx = f
2
CTCSS
Tx = f
1
Rx = f
3
Tx = f
3
IC-FR6000 + UR-FR6000
RX Antenna
TX Antenna 1
TX Antenna 2
Rx = f
1
40
Connection example
Connection example
Connection example
Connection example
This is an example of Digital and Analog cross mode
operation. The IDAS radio (including repeater) can
receive both analog mode and digital mode signals on
a single channel. This function is useful when
introducing digital system components into an existing
analog system. It allows the system operator to
communicate with analog only terminals while utilizing
the digital features as required.
Descriptions
Model Number
Quantity
UHF Repeater
IC-FR6000
UHF RF Module
UR-FR6000
TX Antenna
RX Antenna
Multi Coupler
Interface Cable
25p to 25p
Connect two repeaters by interface cable (25p to 25p).
These interface cables are not sold as Icom accessories,
therefore please assemble the interface cable by
yourself. The connection diagram is as follows;
Analog modulated signal from analog area
Digital modulated signal from digital area
Analog modulated signal from digital area
Frequency
Frequency
Frequency
Frequency
f
1
: Uplink (both Digital & Analog)
f
2
: Analog Downlink
f
3
: Digital or Analog Downlink
Analog Repeater (25pin)
Digital Repeater (25pin)
Pin Description
Pin No.
Pin No.
Pin Description
MODIN
8
⇔
22
AFOUT
EPTT
19
⇔
21
Digital Audible
EPTT
19
⇔
23
Analog Audible
GND
7,14
⇔
7,14
GND
System requirement (One site)
System requirement (One site)
System requirement (One site)
System requirement (One site)
P21
P23
P19
Digital Audible
Analog Audible
EPTT
Switching Diode e.g. MA2C167
Resistor 47kΩ
P7,14
GND
P7,14
GND
Analog H/H
Digital H/H