Robotron Pty Ltd G5E Manuel D’Utilisation
WiNRADiO G3XX User’s Manual
83
Then scale the frequency difference to 16.384 MHz. For example, if the
frequency difference is -152 Hz at 10 MHz, it will be -249 Hz at the
16.384 MHz reference frequency.
frequency difference is -152 Hz at 10 MHz, it will be -249 Hz at the
16.384 MHz reference frequency.
To arrive at the corrected reference frequency, subtract the frequency
difference from 16384000. In our example, 16384000-(-249)=16384249. The
entire reference frequency parameter in the wrG3XX.ini file will be then as
follows:
[ClockCalibration]
02L27011=16384249
difference from 16384000. In our example, 16384000-(-249)=16384249. The
entire reference frequency parameter in the wrG3XX.ini file will be then as
follows:
[ClockCalibration]
02L27011=16384249
Save the wrG3XX.ini file, then restart the G3XX application and observe the
difference.
difference.
To return to the original factory frequency calibration, simply delete the
inserted two lines in the wrG3XX.ini file. You can also delete the entire file
(which will however result in losing all current receiver settings and return to
factory defaults for all of them).
inserted two lines in the wrG3XX.ini file. You can also delete the entire file
(which will however result in losing all current receiver settings and return to
factory defaults for all of them).
Did you know?
The WWV Time and Frequency Standard station which broadcasts on 2.5, 5,
10, 15 and 20 MHz, has a long history that dates back to the very beginning of
radio broadcasting. The call letters WWV were assigned to the US National
Institute of Standards and Technology (then called the National Bureau of
Standards) in October 1919. By December 1922, it was decided that the
station’s purpose would be the transmission of standard frequency signals.
The accuracy of the transmitted frequency was quoted as being better than 0.3
per cent. Nowadays the station frequency is controlled within one part in 10
10, 15 and 20 MHz, has a long history that dates back to the very beginning of
radio broadcasting. The call letters WWV were assigned to the US National
Institute of Standards and Technology (then called the National Bureau of
Standards) in October 1919. By December 1922, it was decided that the
station’s purpose would be the transmission of standard frequency signals.
The accuracy of the transmitted frequency was quoted as being better than 0.3
per cent. Nowadays the station frequency is controlled within one part in 10
13
,
which represents frequency accuracy thirty billion times better.