User manual GARMIN GBR 21

[. . . ] GBR 21 beacon receiver owner's manual and reference guide © 1993-2000 GARMIN Corporation GARMIN International, Inc. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9AQ, U. K. Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium, for any purpose without prior written consent of GARMIN Corporation. GARMIN Corporation hereby grants permission to download a single copy of this manual onto a hard drive or other electronic storage medium to be viewed for personal use, provided that such electronic or printed copy of this manual contains the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual is strictly prohibited. [. . . ] Connect the BROWN wire from the power/data cable to the DATA OUTPUT line of the GPS unit. Connect the YELLOW (or BLACK) wire from the power/data cable to the GROUND wire of the GPS unit. If the BLACK wire is already connected to the same ground terminal as the GPS unit, no additional connection is required (unless a separate RETURN line is provided by the GPS unit). If 9600 baud operation is required, connect the WHITE and GREEN power/data cable wires together. For 4800 baud operation (default), leave these wires disconnected. Connecting GBR and GPS Use the Beacon Receiver Setup Page to enter the beacon operating frequency and bit rate for the nearest DGPS beacon site. This information is automatically transferred to the GBR 21. 9 Installation Connecting GBR and GPS UNITS WITH 7 PIN PLUG (1) RED: POWER INPUT 4 3 2 1 7 5 6 (2) BLACK: GROUND (3) BLUE: DATA OUT (4) BROWN: DATA IN (5) WHITE: NOT USED (6) GREEN: NOT USED (7) YELLOW: ALARM 10-18 VDC GBR 21 (1) RED: 10-18 VDC (2) BLACK: GROUND (3) BLUE: DATA OUT (4) BROWN: DATA IN (5) WHITE: BAUD SELECT IN (6) GREEN: BAUD SELECT OUT (7) YELLOW : GROUND JUMPER THESE TOGETHER FOR 9600 BAUD. LEAVE THESE UNCONNECTED FOR 4800 BAUD. UNITS WITH 13 PIN PLUG (2) RED: POWER INPUT (1) BLACK: GROUND 1 2 (4) BLUE: DATA OUT (5) BROWN: DATA IN (6) YELLOW: ALARM (3, 7-13) NOT USED 10-18 VDC GBR 21 (1) RED: 10-18 VDC (2) BLACK: GROUND (3) BLUE: DATA OUT (4) BROWN: DATA IN (5) WHITE: BAUD SELECT IN (6) GREEN: BAUD SELECT OUT (7) YELLOW 13 JUMPER THESE TOGETHER FOR 9600 BAUD. LEAVE THESE UNCONNECTED FOR 4800 BAUD. UNITS WITH 6 PIN PLUG (1) RED: POWER INPUT (2) BLACK: GROUND (3) BLUE: ALARM (4) BROWN: DATA OUT (5) WHITE: DATA IN (6) RED/BLK: NOT USED 10-18 VDC GBR 21 (1) RED: 10-18 VDC (2) BLACK: GROUND (3) BLUE: DATA OUT (4) BROWN: DATA IN (5) WHITE: BAUD SELECT IN (6) GREEN: BAUD SELECT OUT (7) YELLOW JUMPER THESE TOGETHER FOR 9600 BAUD. LEAVE THESE UNCONNECTED FOR 4800 BAUD. UNITS WITH 4 PIN ROUND PLUG (1) RED: POWER INPUT 1 4 2 3 (2) BLACK: GROUND (3) BROWN: DATA OUT (4) WHITE: DATA IN 10-18 VDC GBR 21 (1) RED: 10-18 VDC (2) BLACK: GROUND (3) BLUE: DATA OUT (4) BROWN: DATA IN (5) WHITE: BAUD SELECT IN (6) GREEN: BAUD SELECT OUT (7) YELLOW JUMPER THESE TOGETHER FOR 9600 BAUD. LEAVE THESE UNCONNECTED FOR 4800 BAUD. 10 Figure 3: Sample Wiring to GARMIN GPS Units Operation Using the GBR 21 UNITS WITH 18 PIN PLUG 2 6 11 15 18 1 3 7 12 16 (18) BLACK: GROUND (17) BLUE: DATA OUT (16) BROWN: DATA IN (11) YELLOW: ALARM (1-10, 12-14) NOT USED 10-18 VDC GBR 21 (15) RED: POWER INPUT (1) RED: 10-18 VDC (2) BLACK: GROUND (3) BLUE: DATA OUT (4) BROWN: DATA IN (5) WHITE: BAUD SELECT IN (6) GREEN: BAUD SELECT OUT (7) YELLOW : GROUND JUMPER THESE TOGETHER FOR 9600 BAUD. LEAVE THESE UNCONNECTED FOR 4800 BAUD. UNITS WITH 4 PIN, RECTANGLE PLUG (4) BLACK: GROUND (3) WHITE: DATA OUT (2) GREEN: DATA IN 10-18 VDC GBR 21 (1) RED: 10-18 VDC (2) BLACK: GROUND (3) BLUE: DATA OUT (4) BROWN: DATA IN (5) WHITE: BAUD SELECT IN (6) GREEN: BAUD SELECT OUT (7) YELLOW (Not used)1 2 3 4 JUMPER THESE TOGETHER FOR 9600 BAUD. LEAVE THESE UNCONNECTED FOR 4800 BAUD. Figure 3 (cont. ): Sample Wiring to GARMIN GPS Units Using the GBR 21 When using the GBR 21, all tuning/operation functions are controlled by the GPS unit. Your 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. For additional information on operating your GPS unit with the GBR 21, refer to the owner's manual for your GPS unit. 1. The LED status light will flash indicating power has been applied, but no beacon signal is being received. If a baud rate selection is also provided, specify 4800 or 9600 baud, as appropriate. If additional devices, such as an 11 Operation Using the GBR 21 autopilot or plotter, are connected to the GPS unit, they must be set to work with NMEA 0183 as well. (Note: On some newer model Garmin GPS receivers, you may set the interface to "Garmin Bcn Rcvr". There is also a scan option which will automatically scan for a DGPS frequency and bit rate. From the Beacon Receiver Setup Page, enter the "Tuned To:" frequency and the "Bit Rate" for the nearest DGPS beacon transmitter. Once the frequency and bit rate have been entered, "Tuning" will be displayed at the bottom of the page. The Main Menu Page on the GPSMAP 130/135/175/ 180/185/230/235. [. . . ] (The distance to each satellite is calculated based upon the time it takes the GPS signal to reach the GPS receiver. ) Multipath error can be minimized by mounting the GPS antenna at a location which minimizes the potential for reflected signals. Generally, the GPS antenna should be mounted on a large, flat horizontal surface and away from any vertical structure (cabin walls, large mast, etc. ) which could reflect the GPS signal. Number of Satellites Visible-- As previously stated, the number of satellites available can affect position accuracy. To apply the corrections provided for the satellites received at the beacon transmitter station, the same satellites (at least in part) must be received by your GPS receiver. [. . . ]