Microwave Journal

Frequency Discriminator: FD-0518-10-812

October 31, 2012


PMI Model No. FD-0518-10-812 is a 8.0 to 12.0 GHz frequency discriminator that provides a video output of 50 mV/GHz and has an accuracy of +/-200 MHz. The rise time is less than 20 nsec and operates into a 100 ohm video load. This model operates on +/-15 VDC and measures 2.0" x 1.8" x 0.5".

Other frequency ranges up to 40GHz are available.


Frequency Range

8 to 12GHz

VSWR Input

2.0:1 Maximum
1.5:1 Typical

Operating Input Power

+10 dBm Nominal, ±0.1 dBm

Video Impedance

100 Ohms Nominal

Video Output Rise Time

20 nS

Video Output Slope

50 mV/GHz

Frequency Discriminator Accuracy

±200 MHz

RF Input Power, Survival

+15 dBm

Power Plus

+15 VDC @ +75 mA

Power Minus

-15 VDC @ -75 mA


2.00" x 1.80" x 0.50"


<4 Ounces

Environmental Ratings:


 -55ºC to +85 ºC Operating

 -65 ºC to +125 ºC Non-Operating


 MIL-STD-202F, Method 103B Cond. B


 MIL-STD-202F, Method 213B Cond. B


 MIL-STD-202F, Method 204D Cond. B


 MIL-STD-202F, Method 105C Cond. B

 Temperature Cycle:

 MIL-STD-202F, Method 107D Cond. A

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