VFO/VCO Frequency Drift

Compliments of Firestik^® Antenna Company Technical Support Team

Copyright ^© 2005 Firestik^® Antenna Company

PROBLEM: Frequency Drift after 1/2 hour warm up time Hum in radio with VFO/VCO turned on SOLUTION: Replace bypass capacitor 0.01mfd with a 0.25mfd mylar or polyester film cap. This capacitor is located above the circuit board which grounds the VFO/VCO board to chassis ground. Recalibration is required after replacement. See alignment instructions . ** Re-created from archived documents for historical purposes.