FDS-RF Mode

Cambrone FDS - RF Mode

RF Mode in the Cambrone FDS is a 14Vpp 21,000 Hz to 300,000 Hz DC square wave. It can only be used when SQUARE Mode is selected. It will not operate if Audio Mode is selected. RF generates extend harmonic signals and at 300,000 Hz, a harmonic spread of signals is observed upto 85MHz (85,000,000 Hz) on the Spectrum analyser

When RF is modulated with the FreX frequencies, an extra force is added to the signal that aids in body penetration. RF can also increase the Herx Effect. See the FreX help menu for more information on the Herx effect and/or search Google

RF also greatly extends the harmonics delivered in the signal

The RF signal in the Cambrone FDS is variable, and can be changed at any time during program operation

Dr James Bare from Rife Technologies, (the modern day pioneer of Frequency Therapy) advises a 5% modulation envelop should be the minimum for R.I.F.E. applications. A automatic RF modulation envelope calculator will be installed into FreX so we can accurately and easily follow these rules. When an output frequency is run, it's minimum RF signal will be displayed allowing the opperater to follow any percentage modulation scheme

Here we see 528Hz modulated with 30kHz
And this is 528Hz modulated with 300kHz
The harmonics generated by both these signals far exceeds the harmonics generated by the fundamental frequency alone.

RF In FreX Display

The microphone band width can not capture and display frequencies above 21kHz and when operating the Cambrone FDS in RF Mode a display such as below will be presented.

A reduced volts peak to peak square wave is displayed in the FreX oscilloscope when running in RF Mode.

RF In DC Mode When operating in RF Mode and DC Mode is selected, the zero volt reference is changed to -15 volts. This function produces a 28 volt signal, with the modulated signal from +28 volts to +14 volts. The 14 to 0 volt part of the signal is non pulsed DC voltage.

RF Mode Only

Buy turning the PC's/Notebook volume to zero will drop out the Audio frequencies and provide a single RF signal, not modulated.

More precise RF frequency output can be achieved by attaching a Digital Multi Meter that has a Frequency counter.

Below is a Digitech QM-1536 Digital Multi Meter used to measure output RF frequencies.

A local electronics shop will be able to supply a DMM with frequency measurement to an accuracy of 0.1%. This DMM can also be used to check the calibration of your sound card.

Note On RF wave form

When the Power dial is at full, a ringing spike is added to the RF signal that changes the properties of the signal. This boosts the signal from 14 Vpp to 25 Vpp and is present through the 20kHz to 300kHz range. The bottom of the spike passes through zero volts so introduces a level of AC to the signal

300kHz signal with ringing edges :-)

By turning down the Power a little, this spike is removed and a more orthodox square wave is present at 14Vpp

300kHz, square wave at reduced Power to remove the ringing edges

I like the ringing edges, it has produced good hits

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