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GB-4000 Specifications

20 Megahertz Sweep/Function Generator

New 3.1 MHz carrier frequency.

Now with 1/100th Hertz resolution

The only Frequency  Generator capable of running 8 frequencies simultaneously

The GB-4000 FREQUENCY GENERATOR Technical Specifications
and Features………

  • Frequency range: 1 to 20 million hertz.

  • Frequency output: In order to output up to 8 individual frequencies simultaneously we use 1 Digital synthesizing processor (or DSP) and 2 Direct digital synthesizers (or DDS) for creating arbitrary waveforms from a single, fixed-frequency reference clock. The Digital synthesizing processor is capable of outputting 1 to 8 individual frequencies simultaneously up to 40,000 Hertz. The 2 Direct digital synthesizers (DDS) are used to output up to 2 frequencies simultaneously from 40,000 Hertz to 20 million Hertz. These frequencies are then summed together so all of these frequencies are at the same power level.

  • Carrier wave frequency: New 3.1 MHz RF (Radio Frequency) carrier which produces the harmonic sideband frequencies used in the 1930s, 1940's and 1950's equipment.

  • Carrier wave On and Off capability: Carrier wave can be turned off so the user can operate it as a standard low audio frequency generator.

  • Waveforms: Square and sine wave. Square to 100,000 Hertz. Sine to 20,000,000 Hertz.

  • LCD: Displays all frequencies on the LCD - no hidden program numbers like other frequency generators.

  • Programmable channels: 2000.

  • Channel capability: 48 frequencies in sequence or 6 groups capable of holding 8 frequencies each.

  • Computer software: GB-4000 programmable software included.

  • Output multiple frequencies: Up to 8 audio frequencies simultaneously.

  • Eight audio frequency range: 1 to 40,000 Hertz with 1/100th Hertz resolution.

  • Output RF multiple frequencies: 2.

  • Two RF frequency range: Up to 20 million Hertz.

  • Duty cycle capability: 10% to 100% square wave duty cycle (Other frequency generators typically can only run a 50% duty cycle)

  • Gating or pulsing range: 1 - 5000 hertz.

  • Gating duty cycle range: 10% - 90%.

  • Channel sweep: Variable from 2 to 20,000 Hertz or 1 to 10,000 Hertz + and - of the target frequency or frequencies in all 2000 channels.

  • Standard sweep: 1 to 20 million making it capable of running both narrow and broad range sweeps.

  • Converge sweeps: 2 frequencies from 1 Hertz to 20 million Hertz.

  • Outputs: Four - 2 red and 2 black (other frequency generators have only 2 outputs).
     
  • Power output audio mode: Varialbe - 0.75-watts or 36 volts.

  • Power output RF mode: Variable - 1 to 4.7-watts.

  • Voltage output RF mode:Over 110 volts making it 23 to 47 times
    more powerful that standard frequency generators.

  • L.E.D: RF indicator light confirms RF output.

  • AC adapters: Two switching 110/240 volt power supplies for worldwide use.



(View our printable brochure)

Want more power than 4.7-watts? Then the SR-4 may be what you are looking for. It was developed for those who want more power. It connects to the GB-4000 using a BNC cable and BNC connections. Like the GB-4000 it outputs through wires to deliver its frequencies. This method has been used for many years and works very well. To purchase the SR-4, 30 MHz 1 to 15-watts power Amplifier for only $720.00*. (Sale Price $620.00 when purchased with GB-4000)

Try the GB-4000, SR-4 amplifier, or M.O.P.A. amplifier for 60-days. You have 60 days to decide to keep them or return them for a full refund, less 10% restocking fee. Returned generator must be in original condition. The GB-4000, SR-4 and *M.O.P.A., amplifiers also include a full two-year *limited warranty on parts and labor. (Exception: 90 days on 812a vacuum tube.)
 (Order here)

 

The Amplifier increases the RF output of the
GB-4000 from 4.7-watts up to 15-watts output