Operating instructions

DIRECTIONAL POWER HEADS
A-10 46882-311D
Performance data - in conjunction with 2945A
When the Power Head is used in conjunction with the Communications Service Monitor 2945A,
the performance is identical to that of the Power Head alone with the exceptions and additions
given below.
HF version UHF version
Power measurement
Resolution:
1 mW or 0.1 dB
Indication: 3 digits
Setting: Automatic ranging using 0 to 1, 0 to 3 and 0 to 10 scales.
Accuracy (including errors due to
frequency response, linearity and
calibration uncertainties combined
(root of sum of squares)):
±8% (±0.003% of maximum
power of Head).
±9% (±0.01% of maximum
power of Head) at 25 to
520 MHz,
±12% (±0.01% of maximum
power of Head) at 520 to
1000 MHz.
VSWR measurements
Resolution: 0.01
Indication: 3 digits and analogue display.
Setting: Automatic ranging, analogue scales 1 to 2, 1 to 4 and 1 to 11.