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Back in the 1950's they built a ray tube instrument that would run 10 frequencies simultaneously. So running multiple frequencies is not a new concept. This is why we built the GB-4000 to be able to run multiple frequencies. Yet today some unknowledgeable people want to disparage running multiple frequencies. Successfully running multiple frequencies is directly tied to power. If you have enough power then it is possible to do this. Below we have given answers to the most commonly asked questions.
 
Some people have asked - Does running multiple frequencies reduce the power level of each of the frequencies being run? The answer to that question would be yes. This is why we built the GB-4000 with the ability to output 2.7 watts (2.70 watts) of continuous power at a 100% duty cycle using an RF (Radio Frequency) carrier frequency. Using an RF carrier frequency is the only way the power level could be increased. The original 1950s equipment could only output one audio frequency at a time with only 1/5th of one watt of power (20% of one watt). This power level worked very well with one audio frequency even until today. Logically if you use 2 audio frequencies you would want to double that power level (2 X 0.20 = 0.40 watts) to 40% of one watt. If you run up to 8 audio frequencies you would want at least 8 times that power level or 1.60 watts of power. This is why the GB-4000 has 2.7 watts of power output so that it exceeds the power capability needed for running 8 audio frequencies simultaneously at the original 1950s capability of 0.20 watts of power for one audio frequency.
 
Some people also ask if they can only run multiple frequencies. The answer to that question is no. The GB-4000gives you the flexibility to switch from running one audio frequency at a time to being able to run up to 8 audio frequencies at a time. You can choose how you want to run the frequencies.
 
Many people want even more power than the 1950s power levels per audio frequency. If you want more power then you can purchase the SR-4 ten watt amplifier and you will have 1.45 watts of power for each frequency, if you run 8 audio frequencies simultaneously. If you decide to only run 4 audio frequencies simultaneously then you would have 2.5 watts of power for each frequency. And if you only run one frequency you can have up to 10 watts of power for a single audio frequency.
 
If you want even more power than 10 watts then you can purchase the M.O.P.A. gas tube amplifier which is a 120 watt instrument. With this instrument you could run up to 8 audio frequencies simultaneously with up to 15 watts of power for each audio frequency.
 
We look at it as going from good to better to best.
The GB4000 operates in two modes:  RF Mode and Audio Mode.  The output specs are different depending on which mode you are using.

For RF Mode, the maximum output voltage is 115V Peak-to-Peak.  The output power is up to about 3.7 watts.

For Audio Mode, the maximum output voltage is 38V Peak-to-Peak.  The output power is up to about .5 watts
One of the power supplies is used for the computer control circuit.  The other is used for the frequency amplification circuitry.  This arrangement helps to keep the frequency amplification circuitry isolated from the computer control section and avoid any noise or interference in the output amplification circuits.
The GB4000 and the SR4 amplifier both come with a "Switching Power Supply" that will automatically detect the voltage in your location and adjust accordingly.  The MOPA Amplifier will be configured at the factory for the voltage at your location.  

So, if you are ordering a MOPA Amplifier, please make sure to tell us if you will be taking the machine to a location other than the shipping address that you give to us during the order process so that we can configure your new MOPA correctly.

The only adapter you should need would be a plug adapter to change from the US style plugs included with your new machine to the shape of plugs used in your location.
The GB4000 and the SR4 amplifier both come with a "Switching Power Supply" that will automatically detect the voltage in your location and adjust accordingly.  The MOPA Amplifier will be configured at the factory for the voltage at your location.  

So, if you are ordering a MOPA Amplifier, please make sure to tell us if you will be taking the machine to a location other than the shipping address that you give to us during the order process so that we can configure your new MOPA correctly.

The only adapter you should need would be a plug adapter to change from the US style plugs included with your new machine to the shape of plugs used in your location.
The company that builds the GB4000 has been building this type of equipment for over 22 years.  The first model was called the Ultimate B3.  Several years later, the GB4000 was introduced.  We are an authorized distributor and work very closely with the manufacturer.  We have been distributing the GB4000 for over 7 years.
The shipping dimensions for the GB4000 and MOPA are as follows:

GB4000: 13" x 11" x 8"  6 lbs
MOPA:  24" x 16" x 14"  25lbs

The actual weight of the components is less, since the above values include shipping materials, manuals, cables etc,
When you purchase a GB4000, you have free technical support for as long as you own your machine via phone or email.  You can always call here if you have questions or concerns about your machine.  Please call us at the number at the top of this site.
Most older GB4000's can be upgraded to the most current configuration.  You would need to send your machine in to the factory to get a complete upgrade.  Please call us at the number at the top of the page if you want to upgrade your machine.
In General, if your machine is in RF mode and the RF Indicator light is on when you are running a channel, your machine is working correctly.  However, if you are concerned, you can send it in to the factory to be tested and repaired if necessary.   Please call us at the number at the top of the page if you want to pursue that course.
No.  The Plasma Tube requires the high voltage, high frequency, low current output that the MOPA provides.  The GB4000 with the SR4 amplifier does not provide enough power to light the plasma tube.  If you want to run frequencies with the Plasma Tube you will need the GB4000 and MOPA combo to do that.
The GB-4000 has the capability to sweep when running any of the 2000 programmable auto channels. The new channel sweep covers a variable range from 10 Hertz to 10,000 Hertz. If you are running a frequency of 2000 Hertz and decide that you want a to sweep 1000 Hertz then the sweep will start at 1500 Hertz and will end at 2500 Hertz. This sweep always covers the frequency range chosen with half the frequency range dropping below the targeted frequency or frequencies to half the range going above the targeted frequency or frequencies used. This type of sweep is desirable when you want variability in your frequency or frequencies you are running.
 
Yes. One of the great features of the GB-4000 is that it is capable of doing two kinds of sweep functions.
 
1) SWEEP: Allows you to run a specified frequency range of your choosing, one frequency at a time. The instrument sweeps from your beginning frequency to your ending frequency.
 
2) CONVERGENCE SWEEP: Allows you to run two frequencies at a time over a specified frequency range of your choosing. The instrument sweeps from your beginning frequency to the ending frequency and at the same time sweeps from the ending frequency to the beginning frequency. The result is that the two frequencies sweep towards each other, then pass each other, one going up and the other going down and each ending where the other frequency began.
Gating is basically an advanced "pulsing" feature. When turned on it pulses any frequency on and off at the pre-determined gate rate.
The reason the GB-4000 is not battery operated is because of its power output range. Rechargeable instruments only have 28 volts peak to peak voltage output. In the audio mode the GB-4000 is variable and has a range from 0 to 35 volts peak to peak. In the RF mode the GB-4000 is variable from 0 to over 100 volts peak to peak. Because of these capabilities it is not feasible to use batteries in the GB-4000.
There are three main differences between the GB4000 and other frequency machines:
 
1. Frequency Range:  The GB4000 is designed to be able to actually produce all of the Frequencies that Dr. Rife used in is pioneering research.  The GB4000 on it's own has a frequency range up to 20 million cycles per second.  The GB4000 also has the ability to create an RF carrier signal and modulate lower frequencies onto that carrier like Dr. Rife did in his work.
 
2. Power output:  One of the big differences between the GB4000 and many other machines is the output power capability.  Because the GB4000 uses an RF carrier frequency, the GB4000 is almost 10 times more powerful than most other machines.  The GB4000 has a maximum power output of up to 2 watts.  With the SR-4 amplifier, the maximum output power increases to 10 watts, or up to 50 times more powerful than some other machines.  With the MOPA amplifier and the Plasma Tube Assembly, the maximum power output is up to 120 watts.
 
3. Ease of use.  The GB4000 is designed with the end user in mind.  It has a simple and intuitive user interface with a complete keypad so you can interact with the machine easily.  The GB4000 comes with over 800 chanels pre-programmed and ready for you to use, with room for you to add almost 1200 more.  The GB4000 also has the ability to output up to 8 audio frequencies simultaneously - which can be a big time saver if you are running a chanel with lots of frequencies.
The GB-4000 uses a DAC (Digital to Analog Converter). This type of electronic circuit is used in all modern analog frequency generators. The frequencies are output from a DSP, (Digital Signal Processor) then go through the DAC and then through a low pass or band pass filter and come out converted to analog. These frequencies are phase-locked-looped for perfect accuracy. By this method we have all the harmonic content of the old antique vacuum tube frequency generators along with the digital accuracy. No old antique frequency generator has the frequency accuracy of todays modern equipment. This method is now the standard in the industry. We recommend that you read this page "The Analog Vs Digital Frequency Debate.
Yes. The GB-4000 has a frequency range from .01 to 20 million hertz (20 Megahertz).
Yes it does for the RF carrier frequency. The GB-4000 also goes beyond using crystal-controlled frequencies. It also uses digital frequencies output from a DSP (Digital Signal Processor). See this article for a discussion of analog and digital frequencies.

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