Agilent Coaxial Frequency Mete

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.