HF HighPass Filter 1.8-30MHz 2500W HPF

HF HighPass Filter 1.8-30MHz 2500W HPF is a passive RF device that passes signals above a certain “cutoff” frequency while rejecting unwanted signals below the cutoff frequencies. A highpass filter should be used when you want to suppress – remove lower frequencies.

Use this HF HighPass Filter 1.8-30MHz 2500W if you have a problem with Low Frequency (LF) transmitters in the range of 30-300KHz or Medium wave broadcasting (also known as Medium frequency (MF)) AM broadcasting transmitters in most of the range from 526.5KHz to about 1450KHz. By order implemented, the NOTCH filter can be tuned to the exact frequency of a particular AM radio to suppress even more disturbing signals.

 

HF HighPass Filter 1.8-30MHz 2500W HPF Appearance:

 

Measured Insertion Loss of HF HighPass Filter 1.8-30MHz 2500W HPF

100 KHz 96 dB
500 KHz 75 dB
700 KHz 59 dB
1 MHz 42 dB
1.15MHz 37 dB
1.2 MHz 37 dB
1.4MHz 18 dB
1.82MHz 0.14dB
3.5MHz 0.043 dB
7.1MHz 0.03 dB
14.15MHz 0.01 dB
21.2MHz 0.01 dB
28.4 MHz 0.012dB

Maximum power input at SWR 1:1 = 2500W, 1:1.5 = 1600W, 1:2 = 1400W, 1:3 = 1200W

These excellent results were achieved by carefully selecting the components and design of the filter.

 

Measured data on the assembled HPF 1.8-30MHz with HP8753ES full 2-port calibrated.

 

HF HighPass Filter 1.8-30MHz 2500W LF and MF Attenuation

 

HF HighPass Filter 1.8-30MHz 2500W MF Attenuation

 

HF HPF 1.8-30MHz 2500W Appearance:

 

HF HPF 1.8-30MHz 2500W HF PassBand and Return Loss

 

Feel free to send us an e-mail if you need something more specific.

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