BIRD 43 - Page 56

Bird Model 43 Wattmeter
46
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)