I got the 1552 & 2565 frequencies from Dr. Loyd. Dr. Sutherland works on frequencies through his paid consult services, photoanalysis/testing, and ABPA transmissions. This new radionics saliva test suggests radionics settings for a radionics device. I am not using a radionics device at this time, giving the Beck protocols a go first. I recently recieved TB and Borna Virus (new sets) from Dr. Sutherland for the F165, and am converting them for the Fscan use this weekend. I will have a powerpack transformer (European) sent to me today from America for the F165,,,, so it won't be long before I am using the F165, which is more powerful, and able to do far more in terms of treatment. I don't pretend to understand all of this, and thus my paid consult to Dr. Sutherland. Dr. Loyd has had great success with the radionics device, and those numbers are for that device (on this test).