50 - 51 MHz Low Loss Receiving Band-pass Filter. 6 Meter band.

  • 50 - 51 MHz  Low Loss Receiving Band-pass Filter. 6 Meter band.

50 - 51 MHz High Selectivity, High Q, Low Loss Bandpass Filter BPF

Bandpass Filter BPF uses high Q coils with unloaded Q of more than 1000, and capacitors with Q more than 2500. Low loss of the filter is achieved with careful design and adjustment. The best receiving band-pass filter designed for 6 meter band. Narrow Bandwidth.

The recorded data on the assembled filter with HP8753ES full 2-port calibrated are presented below.

6m-High-Selectivity-High-Q-Low-Loss-Bandpass-Filter-Measuring-50MHz-Made-By-Antennas-Amplifiers

Return Loss (S11)
Insertion Loss (S21)
6m-50MHz-Bandpass-filter-S11-S21-Finished-filter-Made-By-Antennas-Amplifiers


Achieved results on a built Bandpass filter:

7 MHz = -90 dB
14 MHz = -72 dB
28 MHz = -45 dB
50 MHz = -0.11 dB
51 MHz = -0.12 dB
70.2 MHz = -33 dB
88 MHz = -49 dB
108 MHz = -61 dB
144 MHz = -89 dB
432 MHz = -64 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 nearby strong HF (1.8 - 30 MHz), 70 MHz, 144 MHz station or FM transmitter.
Filter characteristics narrower band view:
 
6m-Bandpass-filter-S11-S21-Zoomed-on-network-analyzer-Made-By-Antennas-Amplifiers
Positions of connectors are selected so that the filter can be used in our "DB" plastic box for outdoor mounting.
6m-Low-Loss-Bandpass-Filter-with-144MHz-BPF-Made-By-Antennas-Amplifiers
For this type of filter, almost nothing will disturb the noise performance of preamplifiers, which is especially important in terrestrial and EME (Earth - Moon - Earth) communications. It will further ensure smooth operation in the presence of strong signals.
50MHz-High-Selectivity-High-Q-Low-Loss-Bandpass-Filter-Made-By-Antennas-Amplifiers

Corresponding VHF band-pass filters:

6 meter band, 50 MHz Economical Bandpass Receiver for Ham:    50 - 51 MHz Economical, Low Loss Bandpass Filter

6 meter band, 50 MHz Receiver Outdoor Bandpass:    50 - 51 MHz High Selectivity High Q, Low Loss RX Bandpass - Outdoors

6 meter band, 50 MHz 300 W Bandpass for Ham:    50 - 51 MHz 300 W Low Loss Bandpass Filter

6 meter band, 50 MHz, 1500 W Bandpass for Ham:    50 - 51 MHz 1500W Low Loss Bandpass Filter

6 meter band, 50 MHz, 4000 W Bandpass for Ham:     50 MHz 4000 W Low Loss Bandpass Filter


  • Product Code: 0621
  • Availability: In Stock
  • 89.00€


Tags: 50MHz, 51MHz, 6m, 6meters, VHF, BandPass, RFI, Band-Pass, Filter, BPF, High, Q, Selectivity, Low, Loss, Receiving