Manual

"Brickwall" Single TV Channel
Deletion Filters
969 Horsham Road
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Horsham, Pennsylvania 19044 USA
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Phone: [phone] Fax: [phone]
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[e-mail]
Select Models pass up to 1 GHz without an external
passband extender.
The series of deletion filters attenuate the entire channel spectrum
from video carrier to aural carrier to allow reinsertion of new informa-
tion without interference. The 50 dB continuous suppression from
video carrier to aural carrier has been found more than ample for rein-
sertion. Attenuation drops sharply at channel edges to preserve upper
and lower adjacent channels.
All models are at AC/DC passing. 1amp max.
*Can be extended to 1 GHz with external passband extender.
Mechanical Specifications:
3271 Sub-band Dimensions: 6” x 2.25”
3271AA Rack Dimensions: 19” x 1.75”
3271ABM, 3271ABH, 3271ABS & 3271ABY
Rack Dimensions: 19” x 3.5”
Connectors: 75 ohms - Type “F”
Freq. Range Adjacent Carrier
Model Number (MHz) Insertion Loss (Max.)
3271Sub-Channels T7 to T13 5.75-47.75 5 dB
3272-Channels 2 to 6 54-88 4 dB
3271ABM-Channels A-2 to I 108-174 3 dB
3271ABH-Channels 7 to13 174-216 3 dB
3271ABS-Channels J toW 216-300 4 dB
3271ABY-Channels AA to YY 300-450 5 dB
3271ABY-Channels AAA to RRR 450-564 6 dB Approx.
Upper Passband Insertion Loss
Channels Limit (MHz.) (Approx.)
T7 to 13 750* 2.0 dB
2 to 6 500* 1.0 dB
A-2 to A 550* 1.5 dB
B to F 750* 1.5 dB
G to 9 850* 1.0 dB
10 to ZZ 1000 1.0 dB
Custom models are available for higher frequencies up to 750 MHz