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Agilent 536A Coaxial Frequency Meter
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 frequenc
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).
Features:
- Broadband
- Direct-reading
- No spurious resonances
- High resolution, easy to read dial
- Accuracy specified with T”temperature and humidity
Specifications:
| Frequency range |
0.96 to 4.2 GHz |
| Dial accuracy |
± 0.10% from 1 to 4.2 GHz
| ±0.15% from 0.96 to 1 GHz |
| Overall accuracy |
± 0.17% from 1 to 4.2 GHz
| ±0.22% from 0.96 to 1 GHz |
| At least 0.6 dB from 0.96 to 1 GHz |
At least 1 dB from 1 to 4 GHz |
At least 0.6 dB from 0.96 to 1 GHz |
| Dip at resonance |
Less than 0.091 (1.2 SWR, |
Less than 0.091
(1.2 SWR) |
20.8 dB return loss |
| Calibration increments |
2 MHz |
| Connectors |
Type-N female |
| Dimensions |
Height: 9.125 inches (232 mm) |
Height: 9.125 inches (232 mm) |
| Weight |
Net, 10 lb (4,5 kg.) |
Shipping, 13 lb (5,9 kg) |
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