Atec Agilent-536A-537A - Manual (Page 2)

Description
frequencies 960 MHz to 4.2 GHz and 3.7 to 12.4 GHz can be read directly and
accurately with Agilent 536A and 537A coaxial frequency meters. Convenient
readout with high resolution is provided by long spiral dials. These dials have
all frequency calibrations visible so you can tell at a glance the specific portion
of each band you are measuring.
Overall accuracy of these frequency meters is 0.17% and includes such variables
as dial calibration, temperature variation over a 20 °C range, relative humidity
effects, and backlash. Extreme resolution and readability permit individual
scale correction charts to be made and readings repeated with even higher
accuracy. Calibration marks are every 2 MHz for the 536A and every 10 MHz
for the 537A. Even at the high frequency end of the dial, minimum spacing
between calibrations is such that you can easily resolve small differences of
frequency. The tuning plunger is spring-loaded to eliminate backlash.
There are no spurious resonances at any setting. A one-quarter wavelength
tuning mode is employed and capacitively loaded to prevent the three-quarter
wavelength mode of higher frequencies from being excited and giving a spurious
response. A well-matched section of strip line couples microwave energy into
the cavity. Resonance is indicated by a dip in output power of approximately
1 dB. Cavity Q is typically greater than 1500 (536A).
Specifications
536A 537A
Frequency range 0.96 to 4.2 GHz 3.7 to 12.4 GHz
Dial accuracy ± 0.10% from 1 to 4.2 GHz 0.1% (includes backlash)
±0.15% from 0.96 to 1 GHz
Overall accuracy 1 ± 0.17% from 1 to 4.2 GHz 0.17%
±0.22% from 0.96 to 1 GHz
Dip at resonance At least 1 dB from 1 to 4 GHz At least 1 dB
At least 0.6 dB from 0.96 to 1 GHz
Reflection coefficient Less than 0.091 (1.2 SWR, Less than 0.33 (2.0 SWR,
off resonance 20.8 dB return loss 9.5 dB return loss)
Calibration increments 2 MHz 10 MHz
Connectors Type-N female Type-N female
Dimensions Height: 9.125 inches (232 mm) Height: 5.75 inches (146 mm)
Diameter: 6 inches (152 mm) Base Diameter: 3.5 inches
(89 mm)
Width (including connectors):
4.625 inches (118 mm)
Weight Net, 10 lb (4,5 kg.) Net, 3.3 lb (1,5 kg)
Shipping, 13 lb (5,9 kg) Shipping, 4.5 lb (2 kg)
1. Includes allowance of ± 0.02% for 0 to 100% relative humidity, ± 0.0016% per °C from 13 to 33 °C
and 0.03% backlash.
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Printed in USA, October 1, 2004
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