Bird Technologies 81-37-25 Series - Manual (Page 10)

TX RX Systems Inc. Manual 7-9095-3 01/17/06 Page 6
VHF Dual Junction Circulators and Isolators
Frequency
Range (MHz) 118-136 81-35A-25-00 81-35A-25-20 81-35A-25-50 81-35A-25-60 81-35A-25-100
132-150 81-36-25-00 81-36-25-20 81-36-25-50 81-36-25-60 81-36-25-100
144-174 81-37-25-00 81-37-25-20 81-37-25-50 81-37-25-60 81-37-25-100
220-250 81-52-25-00 81-52-25-20 81-52-25-50 81-52-25-60 81-52-25-100
Number of Junctions 2
Junction Type Lumped constant
Max Continuous Input Power 81-35A-15-xx: 100 W; all others: 150 W
RF Load Model Number None 82-01-05 82-01-05 82-01-05 82-01-05
82-01-05 82-01-16 82-01-17 82-01-15
Continuous RF Load Power None 5/5 W 5/25 W 5/60 W 5/100 W
Isolation Bandwidth 2.5% of center frequency
Typical Insertion Loss 0.9 dB
Max Insertion Loss 1.1 dB
Peak Reverse Isolation >60 dB
Min Reverse Isolation >50 dB
Nominal Impedance 50 ohm
Min Return Loss (VSWR) 20 dB (1:22: 1)
Temperature Range -30 to +60 Celsius
Connectors, Input/Output/Load N
Dimensions, HxWxD, inches 3.94x6.25x1.78 5.0x6.25x1.78 8.81x6.25x1.78 9.91x6.39x1.78 9.91x6.39x2.9
Dimensions, HxWxD, mm 100x159x45 127x159x45 223x159x45 252x162x45 252x162x74
Weight, lb (Kg) 2.60 (1.18) 2.78 (1.26) 3.24 (1.47) 3.88 (1.76) 4.60 (2.09)
UHF Dual Junction Circulators and Isolators
Frequency
Range (MHz) 406-430 81-65-25-00 81-65-25-20 81-65-25-50 81-65-25-60 81-65-25-100
450-470 81-70-25-00 81-70-25-20 81-70-25-50 81-70-25-60 81-70-25-100
470-490 81-71-25-00 81-71-25-20 81-71-25-50 81-71-25-60 81-71-25-100
490-512 81-72-25-00 81-72-25-20 81-72-25-50 81-72-25-60 81-72-25-100
510-530 81-75-25-00 81-75-25-20 81-75-25-50 81-75-25-60 81-75-25-100
Number of Junctions 2
Junction Type Distributed Parameter
Max Continuous Input Power 250 W
RF Load Model Number None 82-01-05 82-01-05 82-01-05 82-01-05
82-01-05 82-01-16 82-01-17 82-01-15
Continuous RF Load Power None 5/5 W 5/25 W 5/60 W 5/100 W
Isolation Bandwidth 1% of center frequency
Typical Insertion Loss 0.7 dB
Max Insertion Loss 0.8 dB
Peak Reverse Isolation >60 dB
Min Reverse Isolation >50 dB
Nominal Impedance 50 ohm
Min Return Loss (VSWR) 20 dB (1:22: 1)
Temperature Range -30 to +60 Celsius
Connectors, Input/Output/Load N
Dimensions, HxWxD, inches 4.19x8.75x1.78 5.22x8.75x1.78 8.97x8.75x1.78 10.09x8.75x1.78 10.09x8.75x2.9
Dimensions, HxWxD, mm 106x220x45 133x220x45 228x220x45 256x220x45 256x220x48
Weight, lb (Kg) 2.95 (1.34) 3.13 (1.42) 3.59 (1.63) 4.22 (1.92) 4.95 (2.25)