TX Techniques TX FM1, Technical Manual

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TX-FM1/S/R/A Technical Manual www.txtechniques.co.uk
Index
1. Introduction
1.1
General 1
1.2 RDS Encoder 1
1.3 Stereo Encoder 1
1.4 Audio Processor 2
2. Safety information
2.1
General Safety Information 3
2.2 Before Operating this unit 4
3. Controls and Connectors
3.1
Front Panel Controls and Connectors 6
3.2 Back Panel Connectors 6
4. Installation
4.1
Connections 7
4.2 Switching On 7
4.3 Settings 7
4.4 Audio Processor 8
4.5 Remote TA Controller 9
5. Internal Adjustments
5.1
Carrier Frequency Setting 10
5.2 Carrier Frequency Fine Tuning 10
5.3 RF Output Power 10
5.4 Audio Processor Input Level 10
5.5 Audio Processor Individual Band Adjustment 10
5.6 Audio Processor Overall Density Level 10
5.7 19 KHz, 38 KHz, & 57 KHz Frequency Trim 11
5.8 RDS Injection Level 11
5.9 RDS Subcarrier Level 11
5.10 MPX Output Level 11
5.11 MPX Pilot Injection Level 11
5.12 MPX Subcarrier Null 11
5.13 MPX Separation Level 11
5.14 Composite Clipping Level 11
6. Circuitry
6.1
Switch Mode PSU 12
6.2 ALC 12
6.3 Audio Processor 12
6.4 Stereo Encoder & RDS Encoder 13
6.5 Modulator 13
6.6 LCD Control Panel 13
6.7 RF Amplifier 14
6.8 RF Measurement 14