70cm 430-450MHz LowPass-Notch Filter 4000W LPF

This 70cm 430-450MHz LowPass-Notch Filter 4000W is designed for extreme suppression of main harmonics on 70cm linear amplifiers. Integrated Low Pass filter attenuates other frequencies from 15dB to 40dB up to 6GHz.

 

Where to use 70cm 430-450MHz LowPass-Notch Filter 4000W?

• If you have trouble with FCC, BNetzA, or other EMC agencies
• If you have trouble with the harmonics of your 70cm linear amplifier
• TVI problem
• Problem with harmonics on 23cm stations
• The general problem with 70cm transmitter harmonics.

 

70cm 430-450MHz LowPass-Notch Filter 4000W LPF Appearance:

 

 

Measured Attenuation of 430-450MHz LowPass-Notch Filter 4000W

430 MHz 0.13dB
432.1 MHz 0.14dB. Input RL better than -30dB
440 MHz 0.14dB
450 MHz 0.14dB
864.2 MHz > 60dB
1296.3 Mhz > 70dB
2450 Mhz 30dB

Maximum Power Input at SWR:
1:1 4000W, 1:1.5 3100W, 1:2 2500W, 1:3 2000W

 

Measured data on the assembled 70cm LowPass-Notch Filter 4000W

 

70cm LowPass-Notch Filter 4000W Zoomed

 

430-450MHz LowPass-Notch Filter 4kW LPF S21

 

All 70cm filters are here.