Chapter 7 specifications – Bird Technologies 4527 User Manual
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Chapter 7
Specifications
These specifications include data covering the Bird 43, 43P, 4305A, 4431, 4521, 4522,
4526, and 4527. Specifications for models not listed are identical to the Bird 43.
Impedance, Nominal
50 ohm
VSWR, Max.
All models except 4431
1.05:1
4431
1.07:1 (when coupling is less than 30 dB)
Connectors
Primary Line
Bird “QC” (N Female normally supplied)
RF Sampling (on applicable models)
Female BNC
Power and Frequency Range (element dependent)
43,43P,4521/22/26
100 mW – 10 kW
0.45 – 2700 MHz
4305
25 kW max, 0.45 – 2.5 MHz
10 kW max, 2 – 30 MHz
4431
*
5000 W max, 2 – 30 MHz
1000 W max, 30 – 1000 MHz
4527
1000 W max, 2 – 200 MHz
500 W max, 200 – 512 MHz
RF Coupling
4527 (approximate)
–53 dB, 512 – 10 MHz
–70 dB, 10 – 2 MHz
4431 (adjustable)
15 – 70 dB
Insertion Loss (4431 only)*
2 – 512 MHz
0.1 dB max
512 – 1000 MHz
0.1 dB max
Accuracy
CW (all models)
± 5% of full scale
Peak Power (43P only)
± 8% of full scale
Power Requirement (43P only)
Two 9V alkaline batteries (NEDA 1604)
Battery Life (43P only)
48 hours typical
Dimensions, Nominal
43, 43P
3-5/8”L x 4”W x 6-7/8”H
(92 x 102 x 175 mm)
4305A
4-1/4”L x 3-7/8”W x 6-7/8”H
(108 x 99 x 175 mm)
4431
3-7/8”L x 4”W x 6-7/8”H
(99 x 102 x 175 mm)
4521/22/26/27
19”W x 5-1/4”H x 1-3/4”D
(483 x 134 x 45 mm)