F165 Frequency Generator 20 Mhz


20 Mhz square wave programmable frequency generator.


The F165 square wave frequency generator can run standalone up to 1500 program files copied from a PC or Mac. It is also possible to connect the F165 to a computer via a USB port and control it with the F100  software.

You can also create/edit/run programs from the keypad without the need for a PC.

F165 Specifications:

  • Standalone DDS square wave frequency generation controlled by internal 32 bit processor
  • 2MB internal flash memory to store up to 1500 individual frequency program files
  • Backlit LCD display (2 lines x 16 characters) and 16 key keypad to open/run files
  • MS-Windows and Mac OS X F100 software to copy files to the generator internal storage
  • MS-Windows F100 3.0 software to control the F165 from a PC USB port in the same way our current generators operate.
  • All software can be freely downloaded from our web site in the downloads section
  • Create/edit/run program files from the keypad, no PC necessary.
  • Program file format fully compatible with F100 2.0 and our previous generators
  • 3 internal channels that can run freqiencies from 0 HZ to: A:3.9 MHZ, B:3.9 MHZ, C:50 MHZ
  • 2 external BNC ( I and II) output connectors, BNC I is 5 V TTL, BNC II is variable amplitude.
  • BNC output I frequency range: 0 to 50 MHZ
  • BNC output II frequency range: 0 to 20 MHZ (50 MHZ with reduced amplitude)
  • Channels A,B,C can be routed to BNC outputs 1 or 2 in any combination (see note 2)
  • Any of the 3 internal channels can be used as a carrier for the other two channels
  • Channel A,B frequency resolution: .001 HZ
  • Channel C frequency resolution: less than .0009 HZ (see Notes 1 and 3)
  • Reference quartz oscillator stability: 50 ppm
  • Channels A,B duty cycle programmable in 64 (1.5625 %) steps (when running in positive offset (DC) mode.
  • Adjustable amplitude via front knob from 0-13VDC or 0-26VAC
  • Programmable offset: Fully positive or AC centered at 0V
  • Max output current 125 ma
  • TTL output square wave frequency range: 0 to 50 MHZ
  • Amplified output frequency range: 0 to 50 MHZ
  • Amplified output full amplitude analog bandwitdth: 20 MHZ
  • Amplified output short circuit protected
  • Dimensions: 3.35 “x 6.5″ x 1.25”
  • 6ft USB cable included
  • 2.1 mm Input power connector
  • Wall transformer provided with North American plug type. Compatible with 110VAC-240VAC 50-60HZ input.
  • Power input: 2.1 mm, 12 VDC, 1A.
  • One year warranty , parts and labor.

Note 1: The step resolution on channel C depends on the programmed frequency. It varies from .0009 to .000056 HZ. (see Note 3)

Note 2: The F165 has 3 independent internal frequency generators (A,B,C) and 2 BNC output connectors (1,2). A programmable multiplexer allows you to assign any internal channel(s) to any external BNC output(s) in any combination. For example, BNC connectors 1 or 2 can be individually programmed to output channels A , B, C, AB, AC, BC, ABC . When more than one internal channel is output from one of the BNC connectors, the channels are mixed with a logic AND operation.

Note 3: One advantage of this new generator platform is that the internal channels are reconfigurable at the factory. This allows us to make modifications for customers who have special needs such as a finer resolution. If you have such needs, please contact us and we will be happy to quote you a price for a modified F165. Please indicate modifications required and quantity ordered.

All prices on our web site are is US dollars.