Icom IC-775DSP [17/67] Installation and connections 2

Содержание

INSTALLATION AND CONNECTIONS 2 Unpacking Antenna After unpacking immediately report any damage or missing items to the delivering carrier or dealer Keep the shipping cartons Select antenna s such as well matched 50 Q anten na and feedline 1 5 1 or less of Voltage Standing Wave Ratio VSWR is recommended for your re quired band Of course the transmission line should be a coaxial cable For a description and a diagram of accessory equip ment included with the transceiver see UNPACKING on the inside front page p i of this manual Selecting a location Select a location for the transceiver that allows adequate air circulation free from extreme heat cold or vibrations and away from TV sets radios and other electro magnetic sources When using 1 antenna use the ANTI connector CAUTION Protect your transceiver from light ning by using a lightning arrestor PL 259 CONNECTOR INSTALLATION Coupling ring 30 mm OPERATING ANGLE ADJUSTMENT 10 mm Soft solder 10 mm Slide the coupling ring down Strip the cable jacket and soft solder Strip the shown at solder the ductor cable as left Soft center con Soft solder Slide the connector body on and solder it The rubber feet on the bottom of the transceiver provides two operating angles Screw the coupling ring onto the connector body Grounding To prevent electrical shock television interference Wl broadcast interference BCI and other prob lems ground the transceiver through the GROUND terminal on the rear panel For best results connect a heavy gauge wire or strap to a long earth sunk copper rod Make the distance between the GROUND terminal and ground as short as possible ARNING NEVER connect the GND to a gas or electric pipe since the connecId cause an explosion or electric shock 30 mm 9 8 in 10mm 3 8in 1 2mm 1 16in ANTENNA SWR Each antenna is tuned for a specified frequency range and SWR may be increased out of range When the SWR is higher than approx 2 0 1 the transceiver s power drops to protect the final FET In this case an antenna tuner is useful to match the transceiver and antenna Low SWR allows full power for transmitting even when using the anten na tuner The IC 775 DSP has an SWR meter to monitor the antenna SWR continuously 14