15m, 21MHz High power band-pass filter 4kW
15m 21MHz High power band-pass filter 4kW
High power 15m 21-21.45MHz bandpass filters for BIG GUNS. Band-Pass filters calculated for more power then presented.
15 m, 4 kW Band-Pass Filter, 21 - 21.45 MHz appearance.
Electrical specifications of 4kW HF Bandpass (21 MHz, 15m Band) are given in next table.
| Specifications | |
| Frequency Range: | 21.0 - 21.45 MHz |
| Insertion Loss: | 0.14 dB |
| Input return loss better then | - 35 dB |
| Attenuation on nearest band: | 35 - 55 dB |
| Nominal Impedance: | 50 Ohm |
| Maximum Power Input at SWR 1:1 | 4000 W |
| Maximum Power Input at SWR 1:1.5 | 3200 W |
| Maximum Power Input at SWR 1:2 | 2500 W |
| Maximum Power Input at SWR 1:3 | 2000 W |
| Connectors: | SO239 or "N" |
Measured data on assembled filter was done with HP8753ES, and it is full 2-port calibrated. This graphic presents S parameters from HF Bandpass (4kW 15 m Band) filter up to 30 MHz. Insertion loss - S21 on main frequency is less then 0.14 dB!
High power Band-Pass Filter 21 MHz Power Derating Chart.
You can search our similar HF bandpass products here:
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40 meter band: 40 meter, 7 MHz High Power Band-Pass Filter 4 kW
20 meter band: 20 meter, 14 MHz High Power Band-Pass Filter 4 kW
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