The Collins filter ( Inrad $100 ) has a -3 dB bandwidth of 2.5 kHz and a
-60 dB bandwidth of 5.2 kHz max.
I don't have the Yaesu numbers, but the Inrad crystal filter (#709, $150)
is 1.95 @ -3dB, 2.1 @ -6 dB and 3.1 @ -60 dB.
George, W2VJN
> They advise that currently there are two replacement SSB filters
> available for the FT-900 (replacing the stock ceramic filter). The
> 8-pole crystal filter is the XF-110S (price; $157.00) while the Collins
> Mechanical Filter is the YF-115-01 ($189.00). They state the
> installation process for either filter is identical. Are there users
> out there who can provide me information as to the performance
> differences between the two filters in actual use?
>
>
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