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W3NQN Broadcast Band High Pass RF Filters

W3NQN high performance BCB Filter Transceiver model

The NEW NQN BCB filter sets the standard for elimination of birdies, harmonics, IMD, and overload de-sensing of receiver front-ends.

This filter features a very steep roll off starting at 1.8 MHz and down.

	150 W ICAS Power rating
	SO239 Standard connectors, others available upon request.
	50 to 80 dB Stop band loss from .5 to 1.65 MHz
	.5 db insertion loss at 1.8 MHz, and .1 db typical from 2.5 MHz to over 35 MHz.

INPUT S11 (VSWR in RED)

S21 Transmission measurements (note -50dB at 1.65 MHz)

Now for you low band receive antenna users Ed has brought forth a new model

NEW MODEL - Receive only Broadcast band filter

11 poles utilizing traps to improve the rejection at the high end of the BC band > 50db at 1.7 MHz!

The measurement below is made using our VNA2180 dual port VNA.

Engineering that makes a difference in the station.