Bird - The RF Experts
T-Pass Expansion Channels
T-Pass, Expansion Channels
T-Pass Expansion Channels
T-Pass® Transmitter Multicoupler Expansion Channel assemblies consist of the following items:
  • A 6.625” or 10” 3-quarterwave T-Pass® cavity filter.
  • A dual ferrite isolator, with RF loads and coaxial cable for connection to the cavity.
  • An RF sampler to measure RF power reflected into the isolator output load.
  • Isolator and channel mounting hardware.
T-Pass, Expansion Channels
T-Pass Expansion Channels
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Item No
Item Name
Frequency Range
Cavity Diameter
Isolator Power
406-430 MHz, T-Pass Expansion Channels
406-430 MHz
6.625"
150 W
406-430 MHz, T-Pass Expansion Channels
406-430 MHz
10"
150 W
450-470 MHz, T-Pass Expansion Channels
450-470 MHz
6.625"
150 W
450-470 MHz, T-Pass Expansion Channels
450-470 MHz
10"
150 W
470-490 MHz, T-Pass Expansion Channels
470-490 MHz
6.625"
150 W
470-490 MHz, T-Pass Expansion Channels
470-490 MHz
10"
150 W
490-512 MHz, T-Pass Expansion Channels
490-512 MHz
6.625"
150 W
490-512 MHz, T-Pass Expansion Channels
490-512 MHz
10"
150 W
510-530 MHz, T-Pass Expansion Channels
510-530 MHz
6.625"
150 W
510-530 MHz, T-Pass Expansion Channels
510-530 MHz
10"
150 W
746-776 MHz, T-Pass Expansion Channels
746-776 MHz
6.625"
150 W
851-869 MHz, T-Pass Expansion Channels
851-869 MHz
6.625"
150 W
806-824 MHz, T-Pass Expansion Channels
806-824 MHz
6.625"
150 W
851-869 MHz, T-Pass Expansion Channels
851-869 MHz
6.625"
150 W
870-890 MHz, T-Pass Expansion Channels
870-890 MHz
6.625"
150 W
935-960 MHz, T-Pass Expansion Channels
935-960 MHz
6.625"
150 W
929-932 MHZ, T-Pass Expansion Channels
929-932 MHz
6.625"
150 W
940-960 MHz, T-Pass Expansion Channels
940-960 MHz
6.625"
150 W