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2m 144-148 MHz 100W Receiving and Transmitting Bandpass Filter

2m 144-148 MHz 100W Receiving and Transmitting Bandpass Filter
Product Code: 0637
Price: 139.00€
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144MHz - 148MHz 100 W 0.15 dB Super Low Loss Receiving and Transmitting Band Pass Filter

Intended for use with transceivers and transverters up to 100 W output, or before any wideband low noise amplifier (LNA) to protect from out of band signals.

This filter is equally good as transmitting and as receiving filter with super low loss (0.15 dB). 

Super low insertion loss. Excellent to put before any LNA or protect receiver from HF transmitters. This band-pass filter will suppress any signals from HF 1.8 - 28MHz stations 50-54MHz, 70cm 432MHz (430 - 440MHz).

Filter will reduce TVI problem or your problem with neighbours with strong HF, 6m or 70cm transmitters.

2m-100W-144MHz-High-Power-BandPass-Filter

Here are presented measured results with HP8753ES network analyzer full two port calibrated.

Return Loss (S11)

Insertion Loss (S21)

144-148MHz-100W-Band-Pass-Filter-Measured-Data-2m-BPF

2m-100W-Band-Pass-Filter-Measured-Data

Achieved results on a built Bandpass filter:

1.82 MHz=-110 dB
3.8 MHz=-109 dB
7.1 MHz = -105 dB
14.15 MHz = - 90dB
21.2 MHz= -81 dB
28.4 MHz = -72 dB
50 MHz = -56 dB
54 MHz = -53 dB
70.2 MHz = -44 dB
88 MHz = -34 dB
108 MHz = -22 dB
144 MHz = -0.15 dB
145 MHz = -0.15 dB
146 MHz = -0.15 dB
148 MHz = -0.15 dB
Harmonics and interfering signals:
288 MHz = -34 dB
296 MHz = -36 dB
430 MHz = -51 dB
432 MHz = -52 dB
440 MHz = -53 dB
 
Maximum power input at SWR: 1:1 = 100 W; 1:1.5 = 85 W; 1:2 = 75 W; 1:3 = 65 W
 
These excellent results were achieved by careful selection of components and design of the filter.
 
More measured results with HP8753ES network analyzer full two port calibrated.
 
HF:
2m-100W-Bandpass-Filter-HF-Bands-Suppression-144MHz
 
 
HF + 50MHz:
144MHz-Super-Low-Loss-Bandpass-Filter-HF-50MHz-70MHz-Suppression
 
 
FM Transmitter Suppression:
144-148MHz-100W-Band-Pass-FM-Transmitter-Suppression
 
 
144-146-148MHz Zoomed:
2m-High-Power-100W-Bandpass-Filter-144-148MHz-Measured-Data-Zoomed
 
 
Suppression of harmonics and interfering signals::
144-148MHz-High-Power-100W-Band-pass-Filter-Harmonics-Suppression
 
 
 
2m 144, 146, 148MHz 100W Band-Pass filter with high suppression out of band signals.
 
2m-100W-BandPass-Filter-High-Power-Super-Low-Loss
 
100W transmitting and receiving band-pass filter could be used for outdoor mounting. Price difference 10 EUR (plastic box "DB" and two brackets).
 
 
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