2 gps functions, 1 assessment of reception quality, Gps functions – Flytec 5030 v2.24 * User Manual
Page 18: Assessment of reception quality

Flytec
5030 GPS
The Flytec 5030 GPS comes complete with an adaptor, a cable with a cigarette lighter plug
for your personal vehicle and a computer data cable.
The battery's nominal voltage is 3.6 Volts. During charging the voltage rises to 4.4 volts; in
place of the bar scale the word “charging” appears. During normal operation the voltage is
between 3.5 and 4.1 Volts.
The yellow light diode will blink several times after plugging the unit in (to test the battery's
condition) and stays lit until the recharging is complete. If you leave the unit plugged in to
the charger for a few hours after the diode's light has gone out, it will switch to trickle mode
allowing the stored energy in the battery to increase by a few percent.
Note: The outside temperature should be between 10 and 30 degrees Celsius when
recharging the battery. You can check the battery voltage during charging, but normally the
unit should be turned off during this process.
Bat.
3.57V
12h
After the battery has been permanently built into the unit, the user should not try in any way
to replace it himself. In the event that a replacement should be necessary, the unit should be
sent to FLYTEC AG for testing. We will also take care that the battery is properly disposed
of if necessary.
2 GPS
Functions
The use of GPS receivers has become indispensable for navigation today. A chain of
satellites circles the Earth. Their orbit takes approximately 30 minutes. Already more than
30 satellites have been sent into orbit by the USA. Fortunately, these may be used for
navigation free of charge. Some of them do not function any more. Nonetheless, it is
possible to determine your position very precisely anywhere in the world by receiving several
satellites at the same time.
2.1 Assessment of Reception Quality
Flytec 5030 GPS's GPS receiver can be turned on and off by prolonged pressing of the Fl
button. It can follow up to 16 satellites at the same time. After turning on the unit it is
necessary to receive at least 4 satellites to fix position for the first time. Once logged on, 3
satellites (for 2D positioning) are sufficient for further navigation. However, if you want to
record altitude too (3D positioning), then four satellites are required. There is a table in the
receiver, The Satellite Almanac, in which the path, place, and time of all satellites are kept
with reference to the receiver. The Almanac is continuously updated during signal reception.
However, if the signal to the Almanac memory is disrupted completely or the unit is taken
200 km or more from the last reception point, then the Almanac has to be re-established; it
can take 10 minutes to determine the new position. Power is still supplied to the almanac's
memory even when the unit is turned off.
When the receiver has been moved a great distance, you can help facilitate the connection
with the Almanac by putting in the approximate new position (whole number coordinates
suffice) in the Set Up mode under ‘Basic settings/GPS Init’. With the antenna unobstructed
the unit will normally recognize its position after a few minutes.
If the receiver is turned off for only a short period of time (less than 2 hours), it takes less
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