Features:
- This module uses the core of Japan's Murata CFJ455K filter element , the center frequency of 455K, the bandwidth 1K, suitable for use in CW mode or SSB mode , the effect was particularly evident in CW mode , after opening the filter filters out most of the noise , only ticking sound, can significantly improve the recognition rate ; bandwidth voice SSB significantly narrowed down , the noise becomes small , but the sound is still recognizable , to hear what the other said , just sounds a little awkward , not 1K recommend using SSB bandwidth filter , consider using 2.7K bandwidth.
- The identification circuit with the original filter can be inserted in the machine to identify what kind of filter, the filter may be generally of 1K 500,2.7 k displayed on the screen displayed on the screen of the filter 2.3 , so only the screen than to display FIL1 FIL2 intuitive , of course , you can also let him display FIL1 FIL2
Installation:
- Two filter mounting position ( 817 a ) , which is four pins on one side , the other side is three pins, pin aligned in accordance with the filter after turning off the machine , turn the machine on the cover , you can see plug can be. Installed after the power is turned on , you can filter into the menu opens .
- If both 1K and 2.7K purchased filters , can be identified by the characters printed on the filter , model CFJ455K8 is 1K bandwidth filter ; CFJ455K13 is 2.7K filter , regardless of the time of installation slots two slots can be easily reversed, installed after the boot machine that can identify themselves is 1K, that is 2.7K.
Package Contents
- 1xCW /SSB 2.7K narrowband filter compatible with YF-122S For YAESU FT-817/857/897
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