Motorola MTP850, Service Manual

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5.2 - 2 MTP850 TETRA Handportable Terminal / Basic Service Manual TEST SETUP & TESTING 806-870MHz
Typical Test Setup
Carry out the following instructions before testing:
• Check that you have a fully charged battery (not required when using Battery
Eliminator (FTN6904_).
• For testing the radio a special RF radio rear antenna adapter (FTN6905_) with
RF cable is required.
• Detach the antenna from the radio.
• Connect the special RF adapter to the rear side antenna connector of your
radio and fix it by screwing the wing nut into the antenna thread.
• Connect the other side of the cable to the N-type RF Connector of the IFR
using a N-type-to-SMA-adapter.
• Connect the power supply to the battery eliminator wires.
Take care not to mix-up the red (+) and black (-) wire of the battery
eliminator when connecting power just as for the right voltage (3.8VDC,
max. 4.2VDC) or this could damage the radio and/or the power supply.
Figure 2 Typical Test Setup
IFR 2968
RF CABLE
(3086228J02)
N-TYPE
RF CONNECTOR
POWER
SUPPLY
3.8 V
MTP850
BATTERY
ELIMINATOR*