Garmin GPS 89 - Manual (Page 57)

S. A$ soon as a link is established, the current database will
be erased. Upon completion, the message 'database has
been erased' will appear on your screen.
7. Next, the new database w3l be loaded in sections called
'packets'. As this is occurring, the number of packets
'senf will be displayed on die screen.
8. Once die update is complete, the GPS 89 will automatically
initialize and display the database page. Note: It wid take
approximately 5-10 minutes to transfer the new database.
DGP5 Interface Stlnp
The last two format settings allow the GPS 89 to accept
DGPS corrections in RTCM 104 version 2.0 format. The
RTCM/NONE format wiU allow you to connect to any man­
ually-tuned beacon receiver to the proper interface, with the
baud rate selectable from the GPS 89. The RTCM/NMEA
selection controls the GARMIN GBR-21 beacon receiver.
Once a RTCM setting has been selected, the GPS 89 will
automatically try to tune the last frequency and bit rate you
selected, or it will switch to the default frequency of 304,0
kHz with a bit rate of 100 bps if no previous beacon has been
tuned. You may also enter your own frequency and bit rate if
desired.
To enter a DGPS beacon beqnency:
1. HigMightthe 'frsq'field and press A.
2. Enter the desired frequency and press A.
3. Higfilight the 'rate' field and press A.
4. Use -^and ▼'to select the rate and press A.
When the GPS 89 is receiving EKSPS corrections, the
‘beacon receiver’ section of the I/O setup page will display
the frequency and signal strength, as well as the distance
from the transmitter to the beacon receiver. A status message
will constantly keep you informed of DGPS activity:
• A ‘tuning’ message will be displayed while a beacon
signal is being tuned. Once the signal has been tuned,
the message ‘receiving’ will be displayed.
• If a signal is tuned and no correaions are being
received, a “no data’ message will be displayed.
• If a beacon signal cannot be tuned, a ‘no status’ mes­
sage will be displayed.
IMTEftPAfeE—
RTCn/NMEfl
HMEfl 0183 2.0
4800 baud
BEACON KECUR
FREdiQOO.OKHZ
RATE :
2SbpS
DIST _._fc
SKR __d8
Ho Status
DGfShtafaix
OtKt a RTCM opfen is
xketed, you must mamudty
(unr the bcacm newer
fim the /ftqumcy/iilil.
occqud on RTCM-KH v
2.0 /i>muil. Ibi GARMIN
CfiR 21 ù Ibi reeemmended
beocM nccinrfor tist with
thi CPS 89. Othir wivtre
wilh ikt colmi STCM /or­
mili mi^ be uscii, bui may
Hot wmedy displiiy status
or alfow tuniitg contiol.
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