SGC SMARTUNER SG-237 Installation Manual Download Page 9 | Manualshive

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SGC SMARTUNER SG-237 Installation Manual Download Page 9

S G - 23 7 S m ar t un er ™ M anual

SGC, 13737 SE 26

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Street Bellevue, WA 98005 USA • Ph: 425-746-6310, Fx: 425-746-6384, Email: [email protected]

www.sgcworld.com

SGC RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE

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Copyright SGC 2008

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Long Wire Antenna: These perform well on fishing vessels and are very efficient because
antenna lengths of 50 feet or more can be installed without any difficulties. If vessel is not of a
metal structure 3 radial wires as long as possible can be connected to the coupler and spread on
the lower bottom part of the vessel.

Ladder feed Antenna: These may be used if necessary, however, installation of the coupler
directly at the antenna is preferred for higher efficiency.

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Summary of Contents for SMARTUNER SG-237

Page 1: ...SG 237 SMARTUNER INSTALLATION MANUAL...

Page 2: ...on purchasing the most versatile and reliable HF coupler available on the market today Your SGC Smartuner is designed to give you dependable operation and the flexibility to operate on any HF frequenc...

Page 3: ...To transceiver Red Wire DC Power Black Wire DC Ground White Wire w Black Stripe LED Indicator Smartlock White Wire w Red Stripe Tune Lock Reset Smartlock 2 0 Coupler Placement SGC always recommends pl...

Page 4: ...ill be correct The coupler must be installed in an area not directly exposed Excessive weather or exposure to heat and sunlight can shorten the life of the unit Although the SG 237 built very solidly...

Page 5: ...e farthest point away from the rest of the vessel 3 The antenna coupler should be installed at the base feedpoint of the antenna 4 Always create your own ground with radial wire or copper straps They...

Page 6: ...lent base to install effective low cost antennas and end feed or loop antennas can be used Buildings The horizontal quad loop is a groundless antenna for high angle radiation and is ideal for HF commu...

Page 7: ...25 to 35 feet in height which offers excellent performance on all bands Note the ground radials that are necessary with any long wire or vertical antenna Helicopters Planes The Smartuner will also ma...

Page 8: ...ats is designed to operate in a groundless environment and still provide high performance This type of installation will require only one insulation point on the bottom backstay and an electrical conn...

Page 9: ...hese perform well on fishing vessels and are very efficient because antenna lengths of 50 feet or more can be installed without any difficulties If vessel is not of a metal structure 3 radial wires as...

Page 10: ...ion and increase of directivity 5 0 Optional Smartlock The Smartlock allows the operator to have additional controls over the SG 237 It is not required for normal operation 5 1 Tune Tune Lock Reset Th...

Page 11: ...hen the environment or antenna system has changed as in with mobile operation being used while in motion In this case re tuning is within normal operation of the coupler 5 3 Smartlock Connections Refe...

Page 12: ...outputting into a load A load is anything that the output power can be pumped into If the transmitter is operated without any sort of load connected the final amplifier stage should never test a tran...

Page 13: ...oupler RADIO TEST PROCEDURE 1 Connect the transceiver light bulb to the radio RF in out jack 2 Turn the radio and set the CW mode 3 Key the PTT switch on the microphone and look at the light bulb If t...

Page 14: ...of the antenna impedance When lit the impedance is 50 ohms or less When off the impedance is greater than 50 ohms 2 1 This LED will light when the VSWR is greater than 2 1 It will extinguish when VSWR...

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