160 meter 4000 W High Power Band Pass Filter for 1.8 MHz Band

High power 160 meter 1.8 – 2 MHz band pass filters for BIG GUNS.

Bandpass filter is perfect for multi-station environments like special events, field days, and portable operating to protect receivers from excessively strong out-of-band signals. Our 160-meter filter is designed to have an extremely low loss from 1.8 – 2 MHz (160-meter band) and it is less than 0.1 dB! Out-of-band interference is extremely suppressed. The filter is ideal to be on both reception and transmission. The 160-meter bandpass filter is declared at 4000 W, but filters are 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 160 meters band and high attenuation of out-of-band signals.

 

In-band insertion loss less than 0.12 dB (1.8 MHz – 2 MHz). The second harmonic is suppressed by more than 40 dB! Measurements on the assembled filter were done with HP8753ES full 2-port calibrated.

Images from the network analyzer:

This graph represents insertion loss – S21 from 1 MHz to 4 MHz. 2nd Harmonic rejection (80 m band)

 

 

160-meter bandpass filter full HF frequency span (S21) 1 MHz – 30 MHz.

 

 

The filter is suppressing all harmonics from the transmitter and linear amplifier.

Clean up your out-of-band signals with a band-pass filter.

Electrical Specifications 160-meter Bandpass Filter

Frequency Range: 1.8 MHz – 2 MHz
Insertion Loss: 0.1 dB
Input Return Loss: -28 dB
Nominal Input Impedance: 50 Ohms
Attenuation on Nearest Band: 35 dB – 55 dB
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: 2800 W
Maximum Power Input at SWR 1:3: 2000 W

Mechanical Specifications

Connectors: SO239 Default or “N”, 7/16 DIN by Order*
Filter Size: 455 mm x 220 mm x 135 mm
Fan Power Consumption: +12 V DC, 200 mA**
BandPass Filter Weight: 2.7 kg
Mounting: Any position (5 mm hole for wall mount)
Work Environment: Indoor

*No price difference between SO 239 & “N” connectors

** Fan usage is not required for power below 1500 W.

High power Band Pass Filter 1.8MHz Power Deteriorating Chart.

 

Conclusion:

The filter has low insertion loss and low SWR across an entire working band. Therefore, we design with emphasis placed on the maximum possible rejection of second harmonic energy, so our filters are carefully projected to fit the approved frequency range. In conclusion, improving filters and making them better is our passion. Fine engineering can be noticed and our products, usually exceed our competitors in more than a few things. Each HF bandpass filter is handmade and configured to match the desired characteristics. Also, before packing we check the filters again to ensure maximum quality.

Similar HF Band-pass filters:

80-meter band: 80-meter High power band pass filter – 4 kW

40-meter band: 40-meter High power band pass filter – 4 kW

20-meter band: 20-meter High power band pass filter – 4 kW

15-meter band: 15-meter High power band pass filter – 4 kW

10-meter band: 10-meter High power band pass filter – 4 kW