Bird - The RF Experts
89-37-01K
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89-37-01K

89-37-01K, 144-174 MHz, Preselector
Bird has designed application-specific multi-cavity and combline filter products for use in limiting the bandwidth in front of a multiple-receiver system (Preselector) or after a multiple-transmitter system (Post Selector).

  • Several models available to match your specific application.
  • All filters are factory tuned to meet specific frequency channel requirements
  • Temperature compensation keeps product tuned to specification from -30 to +60° C.
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89-37-01K
product specifications:
Item No
89-37-01K
Item Name
144-174 MHz, Preselector
RF Power
(Watts) RX-Only
Number of Cavities-Resonators
3 x LC
Pass Bandwidth
4 to 10 MHz
Frequency Range
144-174 MHz
Specification Bandwidth
1.0 MHz
Insertion Loss
1.5 dB @ 155 MHz
Max Insertion Loss at Passband Edge
2.0 dB
Typical Selectivity
30 dB @ 140 MHz
20 dB @ 170 MHz
Return Loss
14 dB
VSWR
1.5:1
Temperature Range
-30 to +60 °C
Connectors
N, BNC
Dimensions H x W x D
1.5" x 4.5" x 2.5"
(38 x 115 x 64 mm)
Mounting
Surface
Shipping Weight
2 lbs. (0.9 kg)