Examples Of Mobile Relay Station Operation - Kenwood NX-5000 Series Common Function Reference

16 MULTI RF DECK/ MULTI CONTROL HEAD
16.18 Relaying the Received Signal (Mobile Relay Station)

Examples of Mobile Relay Station Operation

The following examples of the operation describes the behavior in a P25 Conventional system, but ID, frequency, and
Signaling (QT/DQT, RAN) are transferred by the same the behavior in Analog Conventional and NXDN Conventional
systems.
Also, all functions of each Conventional system, such as Optional Signaling (DTMF, 2-tone, MDC-1200, FleetSync, NXDN
ID), Encryption, Emergency, and the functions of various calls, can be used.
Operation example 1
This is the example of the operation if Mobile Relay Station is used with the UHF transceiver as the transmitting unit and
the VHF transceiver as the receiving unit in a P25 Conventional system.
The channel configurations of RF Deck 1 and RF Deck 2 are as follows:
RF Deck Unit ID
RF Deck 1 1
RF Deck 2 2
PTT ON →
Subscriber Unit A
(UHF)
Unit ID = A
Talkgroup ID = B
TX Frequency = 460.5 MHz
NAC Enc = 293
In this case, RF Deck 1 behaves as the receiving repeater and RF Deck 2 behaves as the transmitting repeater.
Contrary to the example shown above, RF Deck 2 can behave as the receiving repeater and RF Deck 1 can behave as the
transmitting repeater.
Common FUNC (K, F)/Ver 2.20
Table 16-16 Mobile Relay Channel
Talkgroup ID
1
2
RF Deck 1
UHF
KRK-15B
Control
Head 1
Figure 16-81 16-81 Mobile Relay Station (Operation Example 1)
Receive Transmit
Frequency Frequency
460.5 MHz 465.5 MHz
144.5 MHz 145.5 MHz
RF Deck 2
VHF
KRK-15B
NAC Decode NAC Encode
293
29B
Source Unit ID = A
Talkgroup ID = B (Unit ID = A)
TX Freq = 145.5 MHz (RF Deck 2)
NAC Enc = 29C (RF Deck 2)
Subscriber Unit B
(VHF)
Unit ID = B
Talkgroup ID = B
RX Frequency = 145.5 MHz
NAC Dec = 29C
CONTENTS INDEX
29A
29C
323