DGPS MAX Reference Manual
99
weaker due to data errors caused by a weaker
signal or the introduction of radio frequency (RF)
noise, the MTP value will decrease. A 0% MTP
reading indicates that the beacon receiver is not
successfully demodulating any differential
correction data.
The Q value indicates the number of consecutive
30 bit RTCM words received successfully, to a
maximum count of 25. The Q value changes
rapidly, but the menu is updated at 1 Hz. As such,
its value may not appear to update in an intuitive
manner. Each RTCM word is 30 bits in length.
For a 200 bps modulation rate, assuming a 100%
MTP, approximately 7 words will be decoded per
second, resulting in quick changes of Q.
Unselected?Bx
This menu item provides the name of the beacon
to which the receiver is tuned. This field will
display the beacon’s name only if it has been tuned
by selecting it from the receiver's internal Global
Beacon Table. If the receiver is in automatic mode
or if it has been tuned manually by frequency,
‘Unselected Bx’ will be shown.
Summary of Contents for DGPS MAX
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