![background image](http://html1.mh-extra.com/html/ramsey-electronics/com3010/com3010_user-manual_3591731036.webp)
36
TYPICAL TEST PROCEDURES
Frequency Error Measurement
7.
The COM3010 will also display the Counted Frequency (Lower left field) and The
Frequency Error (lower right field) in the RECEIVE screen.
8. Press
to Zoom the Frequency Error meter to the entire RECEIVE screen.
9.
Adjust the transmitter’s frequency until the error displayed is zeroed to the center mark
of the Frequency Error Bargraph Meter or the Digital Frequency Error Meter reads zero.
Deviation Measurement
10. Press
the
key and select either the ± 6 kHz FM Deviation Bargraph Meter or the
Digital FM Deviation Meter.
11. Inject appropriate audio signal into the transmitter under test.
12. Key the transmitter
13. Adjust the deviation on your transmitter under test as required to meet its specifications.
14. If a CTS or DCS codes are being used with transmitter under test, it is important to
adjust the CTS or DCS signal levels first since these signals will be added to the voice
and will increase the overall deviation.
Note:
For AM Transmitter Frequency Error, Power, and Percent of Modulation Measurements
use the same procedure but substitute:
Receive
for function key
Percent AM Bargraph for ± 6 kHz FM Deviation Bargraph Meter.
Digital Percent of AM Meter for Digital FM Deviation Meter.
Your Notes:
Property of Ramsey Electronics, Inc.
Do not reproduce or distribute.
Summary of Contents for COM3010
Page 5: ...5 1 00 INTRODUCTION Property of Ramsey Electronics Inc Do not reproduce or distribute...
Page 13: ...13 2 00 BASIC OPERATION Property of Ramsey Electronics Inc Do not reproduce or distribute...
Page 32: ...32 Your Notes Property of Ramsey Electronics Inc Do not reproduce or distribute...
Page 57: ...57 4 00 ADVANCED FEATURES Property of Ramsey Electronics Inc Do not reproduce or distribute...
Page 70: ...70 Your Notes Property of Ramsey Electronics Inc Do not reproduce or distribute...
Page 71: ...71 5 00 USER CALIBRATIONS Property of Ramsey Electronics Inc Do not reproduce or distribute...
Page 76: ...76 Your Notes Property of Ramsey Electronics Inc Do not reproduce or distribute...
Page 77: ...77 6 00 DETAILED INFORMATION Property of Ramsey Electronics Inc Do not reproduce or distribute...
Page 95: ...95 7 00 APPENDIX Property of Ramsey Electronics Inc Do not reproduce or distribute...