Present-day operators of HF communications systems are handicapped by the increasing cost of staff and of buildings, by a shortage of skilled technical personnel and by the overcrowded state of the HF band. The newly-developed MST (Marconi Self-Tuning) transmitting system has been designed to ease these problems as far as possible. It comprises a complete range of custom-designed equipment for a modern HF transmitting station, from line inputs to final radiation, which can be controlled entirely by one man.
For further information see here and for later (1968) details here.
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Model No. | Description | Approx. date | Details | Comments | ||
MST DRIVE SYSTEM | < 1965 | here | ||||
H1605 | 1 Mc/s Master Frequency Source | 1964 | here | |||
H1501 | Master Oscillator | |||||
H1502 | Frequency Comparator | |||||
H1504 | 1 Mc/s Distribution Amplifier | |||||
H1601 H1602 |
Comprehensive Synthesiser Drive assemblies | 1964 | here | |||
H1500C | Frequency Synthesiser | < 1964 | here | |||
H1503 | Comprehensive Modulator unit | < 1964 | here | |||
H1509 | Spot-frequency Drive with H1609 assembly | < 1968 | here | |||
H1000 | 1kW Wideband HF Amplifier | 1966 | here | |||
H1001 | Wideband Amplifier | |||||
MST TRANSMITTERS | < 1965 | here | ||||
H1200 | HF Transmitter 30kW | 1964 | here | |||
H1100 | HF Transmitter 7½kW | 1964 | here | |||
H1103 Series | 7.5kW HF Transmitter | < 1968 | here | |||
MST CONTROL AND MAINTENANCE | < 1965 | here | ||||
H1800 | Station Control and State Indication equipment | 1964 | here | |||
H1606 | Transmitter Output and Monitoring equipment | |||||
Control and Monitoring equipment for MST Receivers | 1966 | here | ||||
Remote Control for MST HF Transmitters and Receivers | 1966 | here | ||||
Remote Control for MST HF Receivers | 1966 | here | ||||
MST Transmitter Control and Maintenance | 1966 | here | ||||
MST AERIAL MATCHING AND SWITCHING | < 1965 | here | ||||
HA11x | High-power Matching Transformers | |||||
HA159 Series | Aerial Exchanges | |||||
H1400 Series | Automatic Aerial Exchanges | 1964 | here | |||
H1410 | High-power HF Automatic Aerial Exchange | < 1968 | here | |||
H1420 | Automatic Feeder Switch | |||||
MST RECEIVERS | < 1965 | here | ||||
H2002 Series | Self-tuning HF Receivers | here | ||||
H2002 | Dual-diversity Telegraph Receiver | |||||
H2102 | Dual-diversity ISB/SSB Receiver | |||||
H2112 | Single-path ISB/SSB Receiver | |||||
H1500E | Frequency Synthesiser | |||||
H1605 | Master Frequency Source | |||||
TEST EQUIPMENT | ||||||
H4500 | Self-tuning (MST) Test Set | 1966 | here | |||
Transportable MST systems available here.