Collins Mechanical Filters for the FT-817(D)


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One Board Filter
2300 Hz SSB Filter
300 or 500 Hz CW Filter
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The One-Board Filter (OBF) provides both factory-fresh Collins CW and SSB mechanical filters in your FT-817(ND)! The OBF utilizes Collins Mechanical Filters that are the same as used in the optional Yaesu filters for the FT-817(ND). For the CW filter, you can select either the 300 Hz or 500 Hz BW filter. The 300-Hz is often preferred by CW and PSK CONTEST operators.

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One Plug Filter - CW
300 & 500 Hz
Click here to read more about the Collins filter and the FT-817(ND).  Also you can view a review article by K9QI that appeared in The QRP Quarterly.

 

Improve your CW and PSK operating experience with the 300 Hz or 500-Hz CW filter using factory-fresh Collins Mechanical Filter. Essentially identical to the Yaesu YF-122C and YF-122CN. This filter allows the FT-817(ND), 857(D), 897(D) to perform nicely in the CW and PSK modes. The 300-Hz is often preferred by CW and PSK CONTEST operators. This filter is properly terminated for best performance in your radio. Easy to install. Just remove the cover and set the menu as explained in the FT-817(ND), FT-857(D), & 897(D) Manuals.

 

Click here or on the photo for more information about this product.

Click here to see how to install
the filter in the FT-817(D)

 

One Plug Filter - SSB
2300 Hz
Click here to read more about the Collins filter and the FT-817(ND).  Also you can view a review article by K9QI that appeared in The QRP Quarterly.

This excellent filter built by W4RT Electronics for the FT-817(ND) contains a factory-fresh 10-pole Collins Mechanical Filter essentially identical in performance to that Yaesu uses in the YF-122S optional 2.3-kHz SSB filter. Tests have demonstrated that a 2-dB improvement in talk power can be realized by using this filter rather than the stock MuRata ceramic filter. "Hearing" is also improved. Easy to install. Just remove the cover and set the menu as explained in the FT-817(ND) Manual.

Click here or on the photo for more information about this product.

Click here to see how to install
the filter in the FT-817(D)

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