Note
QST, Mar 1971, p. 128.
QST, Jul 1972, p. 142.
QST, Apr 1973, p. 163.
QST, Jul 1975, p. 156.
QST, Aug 1976, p. 150.
The Palomar Engineers frequency standard contains a crystal controlled oscillator that is based on a precision 100-kHz crystal. A front panel switch controls the operation of three frequency dividers driven by the 100-kHz oscillator.
It provides outputs at 100, 50, 25, 10 and 5 kHz, depending on the switch setting. The output is a square wave with rich harmonic content; thus the signal can be heard at every 100 kHz (or every 50 kHz, or every 25 kHz, etc.) throughout the shortwave bands to 50 MHz and above.
A zero adjustment allows the frequency to be set precisely to WWV or other frequency standard. The accuracy holds for all outputs of the frequency standard. Applications include calibration of receivers, signal generators, VFOs, oscilloscopes and general use in the lab or ham shack.