SG-211 User’s Manual
© 2004 SGC Inc. Page 3
Table of Contents
1 INTRODUCTION ................................................ 5
1.1 SPECIFICATIONS............................................. 5
1.2 MECHANICAL DESIGN ................................... 7
2 SG-211 SETUP ..................................................... 8
2.1 CONNECTIONS TO THE SG-211 ...................... 8
2.1.1 RF Input from your transceiver................ 8
2.1.2 Antenna and RF Ground Connections ..... 9
2.2 BATTERY REPLACEMENT............................. 11
3 ANTENNAS AND THE SG-211 ....................... 13
3.1 OPTIMUM COUPLING ................................... 13
3.2 CONNECTING ANTENNAS............................. 13
3.3 BALANCED VS. UNBALANCED ANTENNAS... 15
3.4 ANTENNA RECOMMENDATIONS................... 16
3.4.1 Dipoles ................................................... 16
3.4.2 The Inverted V Antenna.......................... 17
3.4.3 Dipoles with Matching Lines ................. 17
3.4.4 Long Wires & Inverted Ls ...................... 18
3.4.5 Vertical Antennas................................... 20
3.4.6 Loops...................................................... 23
3.4.7 Portable Antennas.................................. 24
3.4.8 Beams..................................................... 27
3.5 TIPS & TRICKS............................................. 27
3.6 REFERENCES ON ANTENNAS ........................ 29
3.6.1 From SGC .............................................. 29
3.6.2 Books...................................................... 29
3.7 THE GOLDEN RULES OF HF INSTALLATION. 30
3.8 DO-IT-YOURSELF LIGHT BULB TEST........... 31
4 THEORY OF OPERATION ............................. 35
4.1 NO EXTERNAL POWER REQUIRED ............... 35
To Next Page
