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Graphs: Adjacent Channel Bandpass

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Graph 1: Single Channel Sub-TV - CFAL-ch. T10
Graph 2: Custom three Mid-band - CFAL-Ch. 16 to 18
Graph 3: Single Channel VHF - CFAL-ch. 8
Graph 4: Single Channel Superband - BP7-HT-ch. 35
Graph 5: Single Channel Hyperband - BP7-CE-ch. 54

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Graph 1: CFAL-ch. T10 - Single channel, Sub-TV, bandpass

  • Frequency response of T-channel bandpass
  • Sub TV channel: T10
  • Passband Loss: < 2.5 dB
  • Flat passband: <1 dB ripple
  • Selectivity: Adjacent channel
  • Stopband rejection: > 35 dB on adjacent carriers, and >25 dB on rest of channel
  • General Stopband (5-750 MHz): >35 dB
Mkr Freq (MHz) Attn (dB) Channel
1 25.0000 -1.912 T10 pix
2 29.5000 -2.224 T10 snd
3 23.5000 -38.963 T9 snd
4 31.0000 -38.876 T11 pix
Pix = Picture, Snd = Sound

Order Info: model CFAL-Ch.(#)
Specify channel # (any channel - T7 to T13, IF, 2 to 36)

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Graph 2: Custom CFAL- ch.16/18 - Multi-channel Bandpass

  • Model CFAL passband can be customized for a wider bandwidth, e.g., 16 MHz
  • Pass frequency band from chs C16 to E18
  • Passband loss: < 2dB (Fc)
  • Loss at band edges: < 3.5dB at (Mkr 1 & 2)
  • Stopband:>25 dB rejection on adjacent channels (Mkr 3 & 4)
  • General Stopband (5-750 MHz): >35 dB
Mkr Freq (MHz) Attn (dB) Channel
1 Fc 133.250 -3.28 16 pix
2 Fc2 149.750 -3.36 18 snd
3 131.750 -27.94 15 snd
4 151.250 -27.84 19 pix
5 141.500 -1.90 Fc
Pix = Picture, Snd = Sound

Order Info: Custom Adjacent Channel Bandpass
Order as: CFAL-Ch. ( Fc1/Fc2: for Fc1 & Fc2 < 300 MHz)*
Order as: BP7-CE-Ch. ( Fc1/Fc2: for Fc1 & Fc2 >300 MHz to 600 MHz)*
* Maximum passband range: 16 MHz between Fc1 and Fc2 (approx)

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Graph 3: CFAL-ch.8 - Single Channel VHF Bandpass

  • Typical CFAL -VHF frequency response
  • Flat passband with <1 dB ripple
  • Passband loss: 3 to 4 dB
  • Band edge Loss: 4 to 6 dB r (Mkr 1 & 2)
  • Stopband: > 30 dB adjacent carrier (Mkr 3 & 4), and >20 dB on adjacent channel
  • General Stopband (5-750 MHz): >35 dB
Mkr Freq (MHz) Attn (dB) Channel
1 181.250 -3.76 8 pix
2 185.750 -390 8 snd
3 179.750 -43.06 7 snd
4 187.250 -41.66 9 pix
Pix = Picture, Snd = Sound

Order Info: model CFAL-ch.( #): Specify one channel ( T7 to T13, IF, or, 2 to 36)

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Graph 4: BP7-HT-ch.35 - Single Channel Super Band Bandpass

  • Graph depicts typical frequency response of super band channel bandpass
  • Flat passband: < 1 dB ripple
  • Passband Loss: < 3 dB ( Fc)
  • Loss at band edges: 3 to 4 dB
  • Stopband: >25 dB adjacent carriers (Mkr 3 & 4) and >20 dB on adjacent channel
  • General Stopband (5-750 MHz): > 50 dB
Mkr Freq (MHz) Attn (dB) Channel
1 289.25 -3.36 35 pix
2 293.75 -3.34 35 snd
3 287.75 -30.59 34 snd
4 281.25 -27.67 36 pix
5 291.5 -2.35 Fc
Pix = Picture, Snd = Sound

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Graph 5: BP7-HT-ch.54 - Single Channel Hyper Band Bandpass

  • Graph depicts typical frequency response of hyperband channel bandpass
  • Flat passband: <1 dB ripple
  • Passband Loss: < 4 dB ( Fc)
  • Loss at band edges: ............. 5 to 6 dB
  • Stopband: >25 dB adjacent carriers (Mkr 3 & 4), and >20 dB on adjacent channel
  • General Stopband (5-750 MHz): >50 dB
Mkr Freq (MHz) Attn (dB) Channel
1 403.25 -5.30 54 pix
2 407.75 -5.54 54 snd
3 401.75 -26.59 53 snd
4 409.25 -25.67 55 pix
5 405.5 -3.65 Fc
Pix = Picture, Snd = Sound

Order Info: model BP7-HT ch.( #)
Specify channel #: (any channel from 23 to 65)
Custom Order: BP7-CE ch. (inquire)

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