Transmitter Bandpass Filters
	Practically an international standard among top multi-operator home and DX-pedition efforts, these ICE bandpass filters pass only the narrow range of frequencies for which they were tuned while blocking all other frequencies either above or below the passband. Filter circuits use a twin-section, dual resonator design. Each filter unit is built in ICE's heavy duty, 1/8" extruded aluminum chassis with a solid 1/4" center RF containment wall. Models are available for all bands with SO-239 UHF connectors on the input and output. All filters are rated for 200 Watts.
Used extensively by record-setting stations such as K7JA, OH2BH, PJ9A/PJ9W, ZA1A, ZS9A/ZS1, N6TV, N6ZZ, OH2MM, and many others, these filters can help your multi-transmitter contesting too! Attenuation characteristics are provided in the chart below for each model and its associated frequency band.

Bandpass Filter models & dB Insertion Loss at various Frequencies
Model	Frequency	1.8	3.7	7.1	14.1	21.1	28.1
I403	1.8-2.0 MHz	.25	25	33	42	45	50
I404	3.5-4.0 MHz	40	.25	20	35	40	45
I405	7.0-7.3 MHz	60	50	.5	35	45	49
I407	14.0-14.35 MHz	60	50	40	.5	30	40
I409	21.0-21.45 MHz	60	50	45	30	.5	25
I411	28.0-29.7 MHz	60	60	55	35	27	.3

Order Bandpass Filter by model number from the chart above
Catalog #	Item Description	Unit Price
I4xx	Bandpass Filter (where xx is model # from chart above)	$33.95
SPECIAL.....	buy 5 or more Bandpass filters (any mix)	$31.95 each