JRC气象传真机 FAX-9B
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详细信息

AX-9BWeather Fax : JAX-9B
FEATURES
The JAX-9B weather facsimile receiver is a very compact and lightweight solution, incorporating a set of enhanced features that allows for flexible operation.
FLEXIBLE OPERATION RECORDING SYSTEM
The received fax broadcasts are recorded on thermal recording paper, using a thermal head with less moving parts. JRC integrated an automatic frequency selection, allowing for optimised receiving. The JAX-9B can receive in four different modes.
Automatic recording
All operations can be remotely controlled to automatically start up, set parameters, receiving images, feed paper, and stop by remote signals from the broadcasting stations. Only halftone recording is manually controlled.
Manual recording
You can manually set the index of co-operation (IOC), scanning speed, and the halftone recording. The JAX-9B automatically records and stops in this mode.
Forced recording
This is an extensive function of the automatic recording mode. The JAX-9B can manually record while neither in automatic or manual recording mode, also while broadcasting is in progress. Phasing is done manually. It also adopts to an unique system to terminate phase matching instantaneously.
Timer programme recording
The period of the start and stop modes, station frequencies, and half-tone on/off are easy programmable. Whilst combined with the fully automatic mode, and unattended, error-free operation is made possible.
SYNHESISED RECEIVER
The built-in synthesised receiver is capable of setting any receiving frequency from the ten-key pad, and is able to preset up to 90 spot frequencies in the memory. This feature is very effective when receiving any new broadcast frequency and changing the station frequency.
FINE HALF-TONE RECORDING
Pictures of clouds can be recorded in 16 gradation levels. This digital method ensures high resolution recording, using a proprietary system that finely reproduces maps and latitude and longitude grids with very fine and accurate lines.
PRINTOUT OF FREQUENCIES AND PROGRAMME LISTS
Up to 90 channels of memory frequencies and up to 15 channels of programme lists can be printed out on the recording paper. This function is especially useful for setting programming and checking the stored frequencies.
ENHADCED INTERFACING
All received faxes can be displayed on your own PC, allowing you to view (and save) the image before seeing the actual recorded image. This function allows you to quickly view the image digitally, which greatly facilitates the need for immediate decisions. On top, the JAX-9B can also be configured for remote maintenance. JRC has developed a unique function that is capable for remotely monitoring and analysing for any faults that may occur in the system, allowing for prompt action and service.
COMPACT LIGHTWEIGHT DESIGN
The JAX-9B weather fax is remarkably compact and lightweight, allowing for a more flexible installation approach in confined spaces.

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SPECS
Model JAX-9B

 
Functional ability
 Recording system solid state thermal head
Recording paper 1) thermo sensitive recording paper
Effective recording width 256mm (10”)
Index of cooperation (IOC) 576 or 288
Scanning speed 60, 90, 120, 240 SPM
Scanner resolution 8 dots/mm
Scanning line density approx. 7 lines/mm, 3.5 lines/mm
Phase matching automatic and manual
Halftone recording 16 steps by dither pattern
Negative/positive recording manual
External receiver connect. 0dBm, 600Ω
Operation modes automatic, manual, forced, timer programme
Timer programme channel 15 channels
JSC adapter connection yes (for scrambled broadcasts)
Setup data list recording receiving frequency list, timer programme channel list
Setup data storing EEPROM
Self test function recording and panel test
Automatic time correction input via GPS data
Image data output display received images on PC (option)
Remote maintenance yes (option)
Synthesised receiver 
 Receiving system phase locked type frequency synthesised with up-conversion and double super heterodyne type
Frequency range 2.0000 to 24.9999 MHz
Frequency selection automatic
Frequency memory up to 90 channels
Sensitivity  2µV (+6dBµ) or less for antenna input to obtain the output of -5dBm at 20dB S/N
IF selectivity 6dB down point: 2.4 kHz to 3 kHz
66dB down point: 6 kHz or less
Image rejection ratio more than 60dB
Environmental conditions
 Ambient temperature operation: -15ºC to +55ºC
performance: 0ºC to +40ºC
Ambient humidity 93% (40ºC) or less
recording is 80% or less
Power supply DC 12/24/32V 10% to +30%, 70VA or less
Optional items
AC/DC power supply NBA-5143
PC interface kit 2) 7ZZNA4016
Fax image display 3) 7ZZNA4017
Joint box (cable insertion Ø12mm) JQD-69C
Whip antenna (6m) NAW-60
Antenna feeder RG-10/U and RG-10/UY
Recording paper 6ZPTS00108
1) Width 260mm and height 25m per roll
2) Terminal block (TB103) for PC connection - JRC RMS
3) RS422/USB converter, image viewer software and manual (requires 7ZZNA4016