Toner Cable 3271 User Manual

"Brickwall" Single TV Channel
Deletion Filters

969 Horsham Road lHorsham, Pennsylvania 19044 USA l Phone: [phone] Fax: [phone] [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 informa­tion without interference. The 50 dB continuous suppression from
video carrier to aural carrier has been found more than ample for rein­sertion. 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

Specifications Subject To Change Without Notice Rev 08-12 ©Toner Cable Equipment, Inc.

969 Horsham Road lHorsham, Pennsylvania 19044 USA l Phone: [phone] Fax: [phone] [e-mail]

"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 sup­pression on 51 and up. The assembly has a sharp lowpass filter and a
specially tuned deletion filter, 3271ABY-51, to give the “Brickwall” inter­face 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.