EF Series Bandpass Filters
EF Serial Filters - $119
*
Single band versions of filters used in the
FilterMax IV
* Over 50 dB rejections of adjacent bands (excluding (WARC)
* Low insertion loss < 0.6 dB typical
* SWR < 1.2:1 across band
* Connectors with Teflon insulation and gold plated center pins
* 200 Watt ICAS rating
* Made in USA
Our top-of-the-line bandpass filters are a Cauer (elliptical) bandpass configuration which provides maximum rejection of adjacent bands (excluding WARC) along with a low insertion loss. Rejection of the next lower band is over 50 dB while rejection of the adjacent band above is typically more than 60 db. All our filters are built using top quality components and use Micrometals toroid cores and low-dissipation, high-Q TDK capacitors. These filters are ideal for multi-band FT-8 operation. Plots of frequency response and SWR are shown below.
| 160M |
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| 80M |
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| 60M |
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| 40M |
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| 30M |
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| 20M |
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| 17M |
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| 15M |
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| 12M |
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| 10M |
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