144 – 146 MHz High Selectivity, High Q, Low Loss Bandpass Filter BPF

89,00 

144 – 146 MHz High Selectivity, High Q, Low Loss Bandpass Filter BPF

2m Bandpass Filter uses high Q coils with unloaded Q of more than 1000, and capacitors with Q more than 1200. Low loss of filter achieved with careful design and adjustment. Best receiving RFI band-pass filter for Ham Radio designed for 2 meter band.

 

144-MHz-2m-2meter-band-Low-Loss-Bandpass-Filter-Made-By-Antennas-Amplifiers.com

Achieved results on a built Band pass filter:

50 MHz = -68.4 dB
88 MHz = -45.6 dB
108 MHz = -31.5 dB
144 MHz = -0.21 dB
146 MHz = -0.21 dB
432 MHz = -75 dB
These excellent results were achieved by careful selection of components and design of the filter.
Outdoor version + 9EUR

 

2m-144MHz-Band-Pass-Filter-EME-Super-Low-Loss-Outdoor-Made-By-Antennas-Amplifiers

 

Measured Return Loss – S11 (CH 1) and Insertion Loss – S21 (CH 2). Characteristics of 144 MHz Receiving Bandpass filter.

2m-144MHz-RFI-bandpass-filter-2-meters-antennas-amplifiers.com

1. Filter characteristics ”zoomed”.

2-meter-144MHz-bandpass-filter-on-network-analyzer-antennas-amplifiers.com
2. Measured data of 144 – 146 MHz RFI band-pass filter. Insertion loss – S21 (Attenuation) is set to 0.3 dB per division! 
2-Meter-Band-144-146-MHz-RFI-Bandpass-Filter-Measured-Data-Attenuation-set-to-0.3-dB-per-division-Made-By-Antennas-Amplifiers

Similar 144 MHz Band Pass filters:

2 meter band, 144 MHz Bandpass Receiver for Ham: 144 – 146 MHz High Selectivity, High Q, Low Loss Band pass Filter

2 meter band, 144 MHz Receiver Outdoor Bandpass: 144 – 146 MHz High Selectivity, High Q, Low Loss Band pass Filter Outdoor Mounting

2 meter band, 144 MHz Bandpass with PGA preamplifier144 – 146 MHz High Selectivity, High Q, Low Loss Band pass Filter with PGA-103+ Preamplifeir

2 meter band, 144 MHz100 W Bandpass for Ham: 144 – 148 MHz 100 W Receiving and Transmitting Band pass Filter

2 meter band, 144 MHz 200 W Bandpass for Ham: 144 – 146 MHz 200 W Receiving and Transmitting Band pass Filter

2 meter band, 144 MHz 1500 W Bandpass144 – 148 MHz Low Loss (<0.1 dB) High Power Band pass Filter 1.5 kW

2 meter band, 144 MHz 4000 W Bandpass144 – 148 MHz Low Loss (<0.1 dB) High Power Band pass Filter 4 kW

2 meter band, 144 MHz EME 3 Bandpass PGA preamplifier144 – 148 MHz EME 3 Filter Relay With Preamplifier

 

Additional information

Weight 1.1 kg