Codan Radio Communications UT-4E900 Manuale Utente

MT-4E VHF & UHF Receiver & Transmitter Instruction Manual

IM08-MT-4E-TXRX-P1162

VHF & UHF Hardware Tuning and Troubleshooting

RECoMMEndEd tESt EquIPMEnt

Alignment of the receiver and transmitter requires the following test equipment or its equivalent.

Power supply – Regulated +9.5 VDC at 2 A

Phillips PM 2811

Power Supply – Regulated +13.8 VDC at 2 A

Topward TPS-4000

Oscilloscope / Multimeter

Fluke 97 Scopemeter

Current Meter

Fluke 75 Multimeter

Communications Service Monitor (Analog)

Marconi Instruments 2965A or equivalent

Communications Service Monitor (P25 Digital and Analog)

IFR 2975 

Alignment Tools

Daniels A-TK-04

It is recommended that the radio communications test set be frequency-locked to an external 

reference (WWVH, GPS, Loran C) so that the high-stability local oscillator may be accurately set.

Complete Receiver and transmitter alignment

A complete receiver and transmitter alignment is performed at the factory and should not be required 

under normal circumstances. A large change in receiver or transmitter operating frequency, as 

discussed in the next section, or a replacement of major receiver or transmitter sub-assembly 

modules, may require a complete realignment operation.