Japan Radio Co. JAX-9B, Инструкция по эксплуатации, Страница: 15 / 118

Chapter 1 General Outline of Equipment
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1. Chapter 1 General Outline of Equipment
1.1 Function
JAX-9B is capable of receiving facsimile broadcasting such as weather charts and marine charts
transmitted in the high-frequency band (2 to 25MHz) and records them on the recording paper.
1.2 Features
1.2.1 Various Recording Modes
1) Automatic recording mode (AUTO)
In the AUTO mode, all operations such as startup, various settings, image recording, paper feed,
and stop of recording are automatically performed by the remote signals from the broadcasting
station. However, the halftone recording is manually controlled.
2) Manual recording mode (MANU)
In the MANU mode, the index of cooperation (IOC), scan speed and halftone are manually
controlled, though the recording and stop are performed automatically.
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Forced recording mode (# REC)
When the equipment is in any other mode than the mode 1) or 2) (e.g. midway during
broadcasting), received images can forcedly be recorded manually as an extension of the MANU
mode.
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Programmed recording mode (TIMER)
JAX-9B can perform unattended operations linked with the internal timer built in its main body
by programming the program channel, start and stop times, startup mode, recording frequency
and halftone recording.
1.2.2 16-gradation Halftone Recording
Cloud photos received from a weather satellite can be recorded in 16-gradation halftone contrast.
1.2.3 Fine-line Compensation Circuit
The equipment adopts the JRC’s original system that can clearly reproduce fine lines in maps and
latitude and longitude grids.
1.2.4 Synthesizer-based Receiver Capable of Storing 90 Frequencies
Receiving frequencies can freely be preset from a ten-key pad and up to 90 frequencies (There are 10
groups and 1 group can store 9 frequencies.) can be stored in the internal memory.
In addition, the preset frequencies can be swapped with others on the spot, allowing swift response to
any new broadcast or frequency changes.