Just a few of the 2025 GB-4000 Benefits...
1. Two-year full parts and labor warranty.
2. Free operating software updates.
3. Free lifetime phone support.
4. Fully upgradable hardware.
5. Operational DVD training.
6. Ability to run overnight sets.
7. Stand alone computerized system.
8. Ability to run up to eight frequencies simultaneously (to 40,000 Hertz) instead of just one frequency.
9. Ability to run two frequencies from 40,000 Hertz to 20,000,000 Hertz.
10. RF sideband circuit superior to super-regeneration or phaser circuit capabilities.
11. Three amplifier system.
12. Sixty days money back guarantee if returned in new condition (15% restocking fee).
New hardware and software updates are now avaliable for your GB-4000
1. 3.1 Megahertz Carrier frequency.
2. 1/100th of a Hertz resolution.
3. Audio range now increased from 1 to 40,000 Hertz to 1 to 400,000 Hertz.
4. Mute Feature: Allows you to mute the beeper.
5. Skip Feature: Allows you to skip any frequency group or frequency in any channel.
6. Save Gating Feature: Allows you to save, in any channel, gating turned ON whenever that channel is used.
7. Variable Channel Sweep Freature: Allows you to now vary the frequency range of all frequencies in any channel from 2 Hertz to 20,000 Hertz.
The GB-4000 Frequency Generator Technical Specifications and Features…
Stand Alone Frequency Generator: Unlike some generators on the market today the GB-4000 was designed to be a simple to use, easy to operate, stand alone frequency generator requiring noncomplicated computer interface to use all of its features. Computer operated generators generally work well but many people do not feel comfortable having to use a computer to operate all of a frequency generator's options. Our customers appreciate that they are not required to have a computer to operate any of our instrument's capabilities. Using the computer software for programming frequencies into the GB-4000 is an option, if you choose to utilize it. Most people jsut use all the frequencies and Auto Channels that are already factor programmed into the GB-4000. You'll receive a programming disk in the Accessory Kit (again, use the software only if you want to use a PC computer to do any custom frequency programming...totally optional).
The following are some of the GB-4000 features...
Programmable channels: 2,000. Comes with 888 pre-programmed auto channels.
- Channel capability: 48 frequencies in sequence or 6 groups capable of holding 8 frequencies each.
- Computer software: GB-4000 programmable software included in Accessory Kit.
- Outputs: Four - 2 red and 2 black.
- RF Mode Power output: Variable up to 4.7 watts power output.
- Audio Mode power output: Variable up to 36 volts or 0.75 watts.
- Voltage output in RF mode: Over 110 volts making it over 18 times more powerful than
most standard frequency generators. - Frequency output: Digitally accurate frequencies converted to analog using a DAC.
- Frequency range: 1 to 20 million Hertz.
- Two circuits capable of outputing frequencies.
- Audio Mode circuit capable of outputting 8 frequencies simultaneously from 1 to 40,000 Hertz and 1 frequency up to 400,000 Hertz. This circuit uses no RF carrier frequency.
- Eight audio frequency range resolution: 1/100th of a Hertz.
- RF Mode circuit capable of outputing 8 frequencies simultaneously from 1 to 40,000 Hertz and two frequencies from 1 to 20 million Hertz.
- Waveforms: Square and Sine wave. Square wave to 100,000 Hertz. Sine to 20,000,000 Hertz
- Duty cycle capability: 10% to 100% square wave duty cycle.
- Gating or pulsing range: 1 - 5000 Hertz.
- Gating duty cycle range: 10% - 90%.
- Carrier wave frequency: Now with new 3.1 MHz RF (Radio Frequency) capable of producing harmonic sidebands like the 1930's, 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 audio frequency generator. - Channel sweep: Variable- 2 Hertz to 20,000 Hertz or 1 Hertz to 10,000 Hertz + and - of the target
frequency or frequencies in all 2,000 channels. - Standard sweep: 1 to 20 million Hertz.
- Converge sweeps: Two frequencies from 1 Hertz to 20 million Hertz.
- L.E.D.: RF indicator light confirms RF output.
- Display: LCD.
- AC adapters: Two switching 110/240 volt power supplies for worldwide use.
- Price: The GB-4000 is priced at $1,975.00. This price includes FREE shipping in the USA.
Why Power Output Is Important In a Frequency Generator? When comparing the various instruments, power output is a very important consideration. This is the reason the GB-4000 uses a carrier frequency so that more power can be output.
The power output of most frequency generators on the market today that do not use an RF carrier frequency is only about 0.20 of one watt. The GB-4000 with the use of an RF carrier has a 4.7 watts power output and is over 18 times more powerful than these instruments. With the use of the optional SR-4 1 to 15 watts power amplifier it is 75 times more powerful.










