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

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

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

Bandpass Filter BPF 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.

We produce two types of 144 - 146 MHz receiving band-pass filters. Same high quality and characteristics, but different outward look:

1. High Selectivity, High Q, Low Loss, RFI Bandpass filter designed for 2 meter band. Bandwidth: 144 MHz - 146 MHz.

2m-144MHz-low-loss-bandpass-filter-Made-By-Antennas-Amplifiers.com

2. High Selectivity, High Q, Low Loss, RFI Band-pass filter designed for 2 meter band. Bandwidth: 144 MHz - 146 MHz. Suitable for outdoor usage when combined with outdoor plastic with IP63 protection. Rain and wind and UV resistant.

144-MHz-2-meters-High-Selectivity-High-Q-Low-Loss-Bandpass-Filter-Made-By-Antennas-Amplifiers.com

You can read more about outdoor variant by clicking on this link: 144 - 146 MHz High Q, Low Loss RFI Band-pass filter

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

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. This type of filter is necessary when you have near by strong 50 MHz, 432 MHz station or FM transmitter (88 - 108 MHz).
More measurements for Receiving 144 - 146 MHz Band-pass filter:
1. Filter characteristics ''zoomed in''. High adaptation of 30 dB and more on working frequency!
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!  The same attenuation can be seen at every band point, as well as super high adaptation.
2m-144MHz-low-loss-bandpass-filter-Measured-Data-0.3dB-Zoomed-In-Made-By-antennas-amplifiers.com

Similar 144 MHz 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 SPF preamplifier:    144 - 146 MHz High Selectivity, High Q, Low Loss Band pass Filter with SPF-5122Z Preamplifeir

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

2 meter band, 144 MHz 100 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 Bandpass:    144 - 148 MHz Low Loss (<0.1 dB) High Power Band pass Filter 1.5 kW

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

2 meter band, 144 MHz EME 3 Bandpass PGA preamplifier:    144 - 148 MHz EME 3 Filter Relay With Preamplifier


We are also making filters on all frequencies and powers. Even if we don't have an offer on our site, we may be able to make it for you. So feel free to contact us.

You might also like to read about our 2 meter band antennas (144 MHz):    2 Meter High Gain Low Noise Antennas for 144 MHz. Excellent G/T

Positions of connectors are selected so that the filter can be directly connected to the coaxial relay as shown. Band pass filter enclosed in strong 1 mm sheet brass box. Strong mechanics will ensure stability and longevity.
This type of filter will almost nothing disturb noise performance of pre-amplifiers which is especially important in terrestrial and EME (Earth - Moon - Earth) communications. It will further ensure smooth operation in the presence of strong signals.

  • Product Code: 0643
  • Availability: In Stock
  • 89.00€


Tags: 144MHz, 145Mhz, 146MHz, 2m, 2meters, VHF, BandPass, RFI, Band-Pass, Filter, BPF, High, Q, Selectivity, Low, Loss, Receiving, Field, Day, Ham, Radio