Attributed Frequency Lists

Understanding the Frequencies

Why the Discrepancy?

In the 1950s, John Crane and John Marsh modified Rife's technology. They appear to have misunderstood how Philip Hoyland's sideband modulation worked — the audio frequencies were supposed to be modulated onto an RF carrier, not output directly.

When they removed the carrier wave and output the audio frequencies directly, they divided the frequencies by approximately 10 to compensate. This created the lower frequency set that most modern practitioners use.

Which Frequencies Are "Correct"?

We don't know. Supportive accounts say Rife determined frequencies by watching specimens through his microscope while varying an instrument. Because neither the reported optical performance nor the biological effects have been independently reproduced, that account cannot establish that the frequencies work.

The Crane-era frequencies have decades of anecdotal use but have never been validated in controlled clinical trials. Modern practitioners typically use the Crane-era frequencies simply because that's what's available in the databases.

Original Rife Frequencies (1930s)

Based on analysis of the 1939 Beam Ray machine and documentation from Dr. Robert P. Stafford. These frequencies were generated as sidebands on a ~3.3 MHz carrier wave.

Note: Original frequencies operated in the range of 139 kHz to 1.6 MHz as sidebands. The audio frequencies listed here are the modulation frequencies.

Crane-era Frequencies (1950s-60s)

Lower frequencies from the Crane-Marsh modifications. Approximately 1/10th of Rife's originals. These form the basis for most modern frequency lists.

CAFL (Consolidated Annotated Frequency List)

The CAFL is the primary frequency database used by modern practitioners. It contains frequency sets for hundreds of conditions, compiled from multiple sources over decades.

Common CAFL Frequencies

CAFL Database Sources

• Electroherbalism.com — Primary CAFL maintainer
• Spooky2 Database — 13 sub-databases with over 10,000 programs
• Various practitioner compilations — Individual contributions over decades

Historically attributed schedules

Historical schedule claim

Modern Devices vs. Original

Modern "Rife machines" vary enormously in their fidelity to Rife's original technology.No modern manufacturer produces a device identical to Rife's original equipment.

Device Categories