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BR7 - Single Channel Elimination Filter:

Graphs: BR7-T7, BR7-Ch.3E, BR7-ch.10 and Specifications

Graph: BR7-T7(6) Sub-Band 6 MHz Stopband

This deletion filter produces a 6 MHz bandstop width for data reinsertion.

BR7-T7(6)

Mkr Freq (MHz) Attn (dB) Channel
1 5.750 -58.757 -
2 11.750 -53.855 T7 snd
3 4.250 -1.306 -
4 13.250 -1.890 T8 pix

Graph: BR7-ch.3E Stopband and Passband frequency response

Graphs illustrate deep stopband necessary for channel deletion, while maintaining low impact on all other signals, passing up to 1000 MHz.

  • Stopband: >50 dB (Mkr 1 & 2)
  • Low impact on adjacent chs 2 & 4 (Mkr 3 & 4)
  • Above graph is typical for BR7(E) Series channels 2 to 6 and A5 to A1
  • Passband: 0 to 1000 MHz, loss < 2dB

BR7-3E

Mkr Freq (MHz) Attn (dB) Channel
1 61.250 -71.777 3 pix
2 65.750 -66.831 3 snd
3 55.250 -1.452 2 pix
4 59.750 -2.681 2 snd
5 67.250 -2.784 4 pix
6 71.750 -0.740 4 snd
Pix = Picture, Snd = Sound

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BR7-ch.10: Bandstop frequency response

Graph depicts typical stopband frequency response of BR7-series (chs A14 to I22, 7 to 13)

  • Removes all video info (Mkr 1 & 5)
  • Stopband: > 50 dB picture to color carrier
  • Notch at sound carrier: > 50 dB (Mkr 2)
  • Passband: 0 to 550/750/1000 MHz
  • Passband loss (not shown): <1 dB ± 0.5 dB
Mkr Freq (MHz) Attn (dB) Channel
1 193.250 -66.15 10 pix
2 197.750 -63.07 10 snd
3 191.750 -5.24 9 snd
4 199.250 -4.12 11 pix
5 196.830 -62.14 10 cc
Pix = Picture, Snd = Sound, CC = Colour Carrier

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BR7 Specifications

Channels Passband (MHz) Passband Loss (dB) Adjacent Lower (dB) Loss Upper (dB) General Specifications
T7 - T131 DC-150/1000 1.0 ± .5 1 < 2.5 dB1 < 2.5 dB1 Stopband (dB): >50 pix to cc, and >50 snd carriers
2E - 6E 1 DC-1000 1.5 ± .5 1 < 3.51 < 3.51 Stopband (dB): >50 pix to cc, and >50 snd carriers
A5E-A1E 1 DC-1000 1.5 ± .51 < 4 < 3.5 Connectors, Impedance: F-type female, 75 ohms
2 to 6 0-550 2 1 ± .5 < 4 < 3.5 Operating Temperature: 6 to 35° C (40-100° F)
A5 to A1 0-550 2 1 ± .5 < 4 < 3.5 Power passing: 1 amp, 60 AC max
A14 to I22 0-550 2 1 ± .5 < 4.5 < 4.0 Mounting: Wall or Rack
7 to 13 0-550 2 1 ± .5 < 5.5 < 4.5 Weight (lbs): BR7 - 3
BR7(E) - 4

Note: 1000 MHz passband option allows greater channel & service capacity

  1. For models T7-T13, 2E-6E, A5E-A1E, 1000 MHz passband is built-in (no additional losses)
  2. Passband extender option is available. Extender insertion loss is 1dB ± 0.5 dB.

Order Info:

  1. Ask for model BR7-Ch.(#) E or EE.
  2. Specify channel " # " (any ch 2-13, A5-A1,14-22)
  3. Option: Extended passband (E)

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