20 meter 6000 W High Power Band Pass Filter

High power 20 meter 14 – 14.35 MHz band pass filters for EXTREMELY BIG GUNS.

Bandpass filter is perfect for a multi-station environment like special events, field days, and portable operating to protect receivers from excessively strong out-of-band signals. Our 20-meter filter is designed to have an extremely low loss from 14 – 14.35 MHz (20-meter band) and it is less than 0.12 dB! Out-of-band interference is extremely suppressed. The filter is ideal to be on both reception and transmission. The 20-meter bandpass filter is declared at 6000 W, but the filter is designed for more power than presented. The Bandpass filter is placed in a powder-coated aluminum box. Silver-plated SO239 connectors and excellent filter design enable extremely low losses through 20-meter bands and high attenuation of out-of-band signals.

External look from the 14 – 14.35 MHz bandpass filter and electrical specifications:

1. External look. Strong powder-coated aluminum box with silver-plated SO239 connectors. 12 V external powered fan for filter cooling is included.

 

 

2. Electrical specifications of 6 kW HF Bandpass (14 MHz, 20m Band) are given in the table below.

Specifications

Frequency Range: 14.0 – 14.35 MHz
Insertion Loss: 0.12 dB
Input return loss: – 30 dB
Attenuation on the nearest band: 42 – 60 dB
Nominal Impedance: 50 Ohm
Maximum Power Input at SWR 1:1: 6000 W
Maximum Power Input at SWR 1:1.5: 5500 W
Maximum Power Input at SWR 1:2: 5000 W
Maximum Power Input at SWR 1:3: 4000 W
Short period at 1:1: 8000 W
Connectors: SO239 or “N”
Fan: +12V, 0.2 A

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

6 kW 20m 14 – 14.35 MHz Band-Pass Filter S21 (forward) full range to 30 MHz.

 

 

6 kW 20-meter Band-Pass Filter S21 (forward). Measured range: 14 – 14.35 MHz. S21 set at 0.1 dB/div.

 

 

High power Band-Pass Filter 14 MHz 6 kW Power Derating Chart.

 

 

HF band-pass filters designed for 4000 W can be found here: HF Band-Pass Filters

Other 6000 W bandpass filters:

80-meter band: 6000 W 80-meter bandpass filter

40-meter band: 6000 W 40 meter bandpass filter

15-meter band: 6000 W 15 meter bandpass filter