Garmin GBR23 manuale d’uso

owner’ s manual and refer ence guide GBR 23 beacon receiver GBR23Cover.p65 5/19/00, 3:39 PM 1[...]

© 2000 GARMIN Corporation GARMIN International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U.S.A. T el. 913/397.8200 or 800/800.1020 Fax 913/397.8282 GARMIN (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey , SO51 9AQ, U.K. T el. 44/1794.519944 Fax 44/1794.519222 GARMIN (Asia) Corporation No. 68, Jangshu 2nd Rd., S[...]

1 Introduction Limited W arranty GARMIN Corporation warrants this product to be fr ee from defects in materials and manufacture for one year from the date of pur chase. GARMIN will, at its sole option, repair or replace any components that fail in normal use. Such repairs or replacement will be made at no char ge to the customer for parts or labor [...]

2 Introduction Cautions All differ ential beacon receivers decode correction data determined at the beacon transmitter site via a GPS receiver(s). The GPS system is operated by the govern- ment of the United States which is solely responsible for their accuracy and maintenance. The DGPS beacon transmitters are operated by the U.S. Coast Guard (or s[...]

3 Introduction T able of Contents Introduction Limited W arranty ..............................................1 Cautions ..........................................................2 T able of Contents ............................................3 Product Registration ........................................4 Overview Capabilities & Package Cont[...]

4 Introduction Product Registration Customer Service Pr oduct Registr ation Help us better support you by completing our on-line registration today! Have the serial number of your GBR 23 handy and connect to our website ( www .garmin.com ). Look for the Product Registration link on the Home page. If you have previously registered a GARMIN pr oduct [...]

5 Capabilities The GBR 23 offers a host of powerful capabilities to enhance the performance and accuracy of your GPS receiver: • Per formance— The single channel receiver has high-sensitivity automatic and manual tuning throughout the beacon br oadcast band. • Ease of Use— Once installed, operation is controlled using your GARMIN GPS unit. [...]

6 Mounting the Receiver Please r ead through these instructions thoroughly befor e attempting installation. Make sur e you completely understand these instructions before you begin. When in doubt, seek pr ofessional assistance. The following additional items are needed or optional to complete the installation of your GBR 23: • Antenna mount— Si[...]

7 Installation Mounting the Receiver If a problem is found, try altering the location of the unit or wiring. Often moving the antenna a few feet away from the sour ce of interference will solve the problem. When a suitable configuration is found, a permanent installation should be made. Select the mounting location according to your prefer ences. K[...]

8 Installation Connecting the GBR 23 Connecting the GBR 23 T o Y our GPS Unit The final step in installing the GBR 23 is to connect the receiver’ s DA T A IN, DA T A OUT and GROUND lines to your GPS unit. The GBR 23 is designed to transmit/ receive data at 4800 baud or BPS (bits per second), which is suitable for use with all differential-r eady [...]

9 Installation Connecting GBR and GPS Figure 3: Sample Wiring to GARMIN GPS Units GBR 23 8-35 VDC (5) WHITE: REMOTE ON/OFF* (1) RED: 8-35 VDC (2) BLACK: GROUND Switch Power/Data Cable Remote Power Switch 7 6 1 2 4 3 5 Closed- ON Open- OFF (-) (+) Fuse 2-6A GBR 23 8-35 VDC (7) YELLOW : NOT USED (6) GREEN: NOT USED (5) WHITE: REMOTE ON/OFF* UNITS WIT[...]

10 Installation Connecting GBR and GPS Figure 3 (cont.): Sample Wiring to GARMIN GPS Units GBR 23 8-35 VDC UNITS WITH 6 PIN PLUG GBR 23 8-35 VDC UNITS WITH 7 PIN PLUG (7) YELLOW: ALARM GBR 23 8-35 VDC UNITS WITH 4 PIN ROUND PLUG GBR 23 8-35 VDC UNITS WITH 13 PIN PLUG (1) RED: POWER INPUT (2) BLACK: GROUND (3) BLUE: DATA OUT (4) BROWN: DATA IN (5) W[...]

11 Using the GBR 23 When using the GBR 23, tuning may be either done automatically or controlled by the GPS unit. Y our GARMIN GPS unit provides a Beacon Receiver Setup Page and, in some cases, Beacon Log Page for this purpose. The operating instructions provided below are generalized to cover several different GARMIN models and may not exactly mat[...]

12 7. If the beacon signal is received, but no DGPS correction data is included, the message “No Data” will appear at the bottom of the page . If no beacon signal is received, the “SNR” field will remain blank, “No Status” will appear at the bottom of the page . 8. To select another beacon tr ansmitter , enter a new frequency and bit ra[...]

13 GPS SIGNAL GPS SIGNAL DGPS (CORRECTION) SIGNAL SHIPBOARD GPS AND DGPS RECEIVERS CORRECTION DA T A GPS RECEIVER ST ATION AND DGPS TRANSMITTER Reference After entering the beacon’ s operating fr equency , set the bit rate as indicated on the Beacon Refer ence Card. Beacon information is also available from the other sources listed on the car d. [...]

14 The Main Menu Page on the GPS III/III+/12Map/ Navtalk. Select ‘Setup’ to make the desir ed interface settings. From the Interface Page, select ‘R TCM/NMEA ’ to properly interface with the GBR 23. DGPS: How It W orks Satellites received by the shipboar d GPS receiver , but not by the GPS receiver at the beacon transmitter site, will not h[...]

15 Sour ces of Err or Using a DGPS Beacon Receiver with your existing GPS Receiver can provide substantial impr ovements in accuracy; however , there may be occasions when the best possible accuracy will not occur . Several factors can contribute to a degraded DGPS accuracy . Loss of DGPS Beacon Signal — Obviously , the lack of DGPS correction da[...]

16 Reference Sources of Error Number of Satellites Visible — As previously stated, the number of satellites available can affect position accuracy . T o apply the corrections pr ovided for the satellites received at the beacon transmitter station, the same satellites (at least in part) must be received by your GPS receiver . And, certainly , if t[...]

17 1) “Check Wiring” displayed on GPS unit Power switch/wiring faulty . Fuse/breaker blown (if used). GBR 23 not wired pr operly with GPS unit. Check wiring. If the BROWN (Data In) wire is not used (Auto-tuning), this message may be displayed. If the receiver status screen displays the GPS is receiving dif ferential corrects, no action is neede[...]

18 Reference T roubleshooting Chart If the ‘No Differ ential GPS Position’ message is displayed on your GPS r eceiver , corr ection data may not be available. This may be due to a missing or weak beacon signal, not enough GPS satellites or bad wiring connection between the GBR 23 and GPS. 7) Beacon signal weak or not received. Interference fr o[...]

19 Reference Physical Size: 4.6”W x 5.3”H (117mm x 135mm) W eight: 23.9 ounces (0.678 kg) Operating Range: -68°F to +158°F (-20°C to +70°C) W aterproof: -1 meter submersion for 30 minutes IPX7 rating for IEC529 Mount Thread Size: 1” diameter at 14 threads/inch Power V oltage: 8 - 35 vDC using supplied power/data cable . Surge and reverse [...]

20 A Antenna mount..................................6, 7 Auto-tuning................................9, 11-12 B Baud rate....................................8, 11-12 Beacon Log Page..................................12 Beacon Range.......................................14 Beacon Reference Car d......................5,11 Beacon Receiver Setup Page....[...]

GBR23Cover.p65 5/19/00, 3:39 PM 3[...]

© 2000 GARMIN Corporation GARMIN International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U.S.A. GARMIN (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey , SO51 9AQ, U.K. GARMIN (Asia) Corporation No. 68, Jangshu 2nd Rd., Shijr , T aipei County , T aiwan www .garmin.com Part Number 190-00195-00 Rev . A GBR23Cover.[...]