Toner Cable 3271 Series Brickwall Single TV Channel Elimination Filters - Manual (Page 2)

Specifications Subject To Change Without Notice Rev 08-12 ©Toner Cable Equipment, Inc.
969 Horsham Road l Horsham, Pennsylvania 19044 USA l Phone: 215-675-2053 Fax: 215-675-7543 l [email protected]
"Brickwall" Lowpass &
Highpass Filters
Description:
These made to order filters divide the entire TV spectrum into two
regions: passband and stopband without sacrificing a channel as a
guardband. “Brickwall” lowpass and highpass filters are often used to
suppress a block of channels for reinsertion of other programming.
Lowpass Example:
The unit consists of a sharp lowpass filter and a tuned deletion filter,
6211LP-(50)/(51). It passes all channels through 50 with 50 dB sup-
pression on 51 and up. The assembly has a sharp lowpass filter and a
specially tuned deletion filter, 3271ABY-51, to give the “Brickwall” inter-
face between channels 50 and 51.
Highpass Example:
The unit consists of a sharp highpass filter and a tuned deletion filter,
6211HP-(24)/(25). Suppression is 50 dB suppression on channel 24
and below. It passes channel 25 to at least channel 61. Consists of a
series assembly of a highpass filter and a specially tuned deletion filter
3271ABY-24 to give the “Brickwall” interface between channels 24-25.
Any interface channel (2-61) may be customer specified.
Mechanical Specifications:
Baseplate Dimensions: 19” x 8.75”
Connectors: 75 ohm - Type “F”
Other impedances and connectors can be supplied to order.
6211LP/HP Band Edge Stopband
Channels Insertion Loss (Max.) Rejection (Min.)
2 to W 5.5 dB 50 dB
AA to QQ 6.5 dB 50 dB
RR to NNN 7.5 dB 50 dB
OOO to RRR 8.5 dB 50 dB
Special assemblies of several channel deletion filters are available for:
• Suppressing contiguous channel blocks
• Suppressing several non-contiguous channels
• Spectrum splitting “Brickwall” highpass or lowpass filters
• Temperature for standard models: 50° F to 90° F
• Temperature compensated models are available for -20° F to 120° F
• Batch descrambling, scrambling, channel conversion or any
combination of these functions.