Frequency Error Bargraph, Positive; Frequency Error Bargraph, Negative; Digital Frequency Error Meter; Audio Frequency Meter - Ramsey Electronics COM3010 User Manual

BASIC OPERATION
Common Meter Displays
Frequency Error Bargraph
Scale = 1, Error Positive
Frequency Error Bargraph
Scale = 2, Error Negative
Property of Ramsey Electronics, Inc.
Digital Frequency Error
Meter
Do not reproduce or distribute.
Audio Frequency
Meter
Any of the meters can be zoomed by pressing
Your Notes:
COM3010 Meter Displays (Continued)
2.10.06 The frequency error bargraph allows visual calibra-
tion of a frequency reference to the internal reference of the
COM3010. This is scale-1, error positive. For a more precise
error value see the Digital Frequency Error meter below.
2.10.07 The frequency error bargraph allows visual calibra-
tion of a frequency reference to the internal reference of the
COM3010. This is scale-2, error negative. For a more precise
error value see the Digital Frequency Error meter below.
2.10.08 The Digital Frequency Error meter will measure the
difference between the COM3010's receiver frequency and
counted signal. It will then display the difference digitally.
2.10.09 The audio frequency counter indicates the demodu-
lated audio frequency. It is an average of counts over a period
of time, and the accuracy increases as time goes on. After 10
seconds it has an accuracy of 0.1Hz for proper discovery of
CTS tones. It has a count range from 60 Hz to 3 kHz.
28
Description