User manual YAESU FTDX5000

[. . . ] HF/50 MHZ TRANSCEIVER FTDX5000 SERIES OPERATING MANUAL VERTEX STANDARD CO. , LTD. VERTEX STANDARD YAESU UK LTD. 4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan US Headquarters 10900 Walker Street, Cypress, CA 90630, U. S. A. Unit 12, Sun Valley Business Park, Winnall Close Winchester, Hampshire, SO23 0LB, U. K. VERTEX STANDARD HK LTD. Unit 5, 20/F. , Seaview Centre, 139-141 Hoi Bun Road, Kwun Tong, Kowloon, Hong Kong VERTEX STANDARD (AUSTRALIA) PTY. , LTD. Normanby Business Park, Unit 14/45 Normanby Road Notting Hill 3168, Victoria, Australia ABOUT THIS MANUAL . . The FTDX5000 is a leading-edge transceiver with a number of new and exciting features, some of which may be unfamiliar to you. [. . . ] When performing transmitter tests for setup of the [MIC] or [RF PWR] knobs, be sure to monitor the frequency before transmitting, to avoid interference to others who may already be using the frequency. Four techniques for initiating Transmit/Receive control are provided on the FTDX5000. You may choose the technique(s) that best suit your operating needs: Pressing the microphone PTT switch will engage the transmitter. The rear panel PTT jack may be connected to a foot switch or other manual switching device in order to engage the transmitter. Pressing the front panel [MOX] button will lock the transmitter on. Press the [MOX] button again to return to receive. The VOX (Voice Operated Xmit) circuit will engage the transmitter automatically when you speak into the microphone. For VOX operation details, see page 81. FTDX5000 OPERATING MANUAL Page 71 USING THE AUTOMATIC ANTENNA TUNER The Automatic Antenna Tuner ("ATU") built into each FTDX5000 is crafted to ensure a 50-Ohm load for the final amplifier stage of the transmitter. We recommend the ATU be used whenever you operate the FTDX5000. ADVICE: The ATU of the FTDX5000, being located inside the station, only adjusts the impedance presented to the transmitter at the station end of your coaxial cable feedline. It does not "tune" the SWR at the antenna feedpoint itself. When designing and building your antenna system, we recommend that every effort be made to ensure a low SWR at the antenna feedpoint. The ATU of the FTDX5000 includes 100 memories for tuning data. Eleven of these memories are allocated, one per Amateur band, so that each band has at least one setting preset for use on that band. The remaining 89 memories are reserved for the 89 most-recent tuning points, allowing quick frequency change without the need to retune the ATU. The ATU in the FTDX5000 is designed to match impedances within the range of 16. 5 Ohms to 150 Ohms, corresponding to an SWR of 3:1 or less on the HF amateur bands (6 meter amateur band: 25 Ohms to 100 Ohms, corresponding to an SWR of 2:1 or less). Accordingly, simple non-resonant whip antennas, along with random-length wires and the "G5RV" antenna (on most bands) may not be within the impedance matching range of the ATU. ATU OPERATION 1. Rotate the [RF PWR] knob fully clockwise (to the right). Use the Main Tuning Dial knob to set the radio to the desired operating frequency within the Amateur band. Press the [TUNE] button briefly to place the ATU in the transmit line (no adjustment/tuning will occur yet). The " QUICK POINT: The brief press of the [TUNE] button will turn the tuner on, and the microprocessor will automatically select the tuning point closest to the current operating frequency. Press and hold in the [TUNE] button for two seconds to begin automatic tuning. [. . . ] 84 R RCL Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22, 101 Repeater Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 RF GAIN Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]