TM 9-6695-274-14
Figure 1-81. Tektronix, Type 067-0885-00, Microwave Comb Generator.
Tektronix, Type 067-0885-00, Microwave Comb Generator (fig. 1-81), is a calibration fixture for microwave spectrum
analyzers. It consists of a signal source, a coaxial cable, 3 dB attenuator, and a comb generator module. The signal
source is powered by a TM500 series power module. The output of signal source is applied to comb generator module via
the coaxial cable. The 500 MHz signal source can be frequency or pulse-modulated externally. When the output of signal
source is applied to the comb generator, a comb line (spectrum) of markers is generated, which are harmonics of
fundamental 500 MHz. The crystal controlled source provides an accurate reference to check frequency readout
accuracies up to 20 GHz.
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