3. The RF-DC difference technique is used in the operation of these units. This
technique consists of measuring the percent difference between the RF output when
RF is applied and the DC output when DC is applied for the same TE output. This
difference is not a function of temperature or level.
4. The compensating network made up of Rc and Cc is used to maintain the RF-DC
difference within 20 percent over the entire frequency range up to 1 GHz.
actual RF-DC difference is determined by comparison with the national reference