User manual YAESU FT-2000

[. . . ] HF/50 MHZ TRANSCEIVER FT-2000 OPERATING MANUAL VERTEX STANDARD CO. , LTD. 4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan VERTEX STANDARD US Headquarters 10900 Walker Street, Cypress, CA 90630, U. S. A. YAESU EUROPE B. V. P. O. Box 75525, 1118 ZN Schiphol, The Netherlands YAESU UK LTD. 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 FT-2000 is a leading-edge transceiver with a number of new and exciting features, some of which may be unfamiliar to you. In order to gain the most enjoyment and operating efficiency from your FT-2000, we recommend that you read this manual in its entirety, and keep it handy for reference as you explore the many capabilities of your new transceiver. [. . . ] In this case, the [MIC] knob should not be advanced to the point where the ALC meter deflects. In many cases, the same setting as used on SSB will be satisfactory. Release the PTT switch at the end of your transmission. The transceiver will return to the receive mode. Page 64 FT-2000 OPERATING MANUAL SSB/AM MODE TRANSMISSION ADVICE: ALC meter deflection may be caused by excessive drive power, but also by reflected power detected in the antenna system. If the impedance presented to the transceiver is different from 50 Ohms, ALC meter action may be observed that is not related to the proper setting of the [MIC] (gain) knob. Therefore, we recommend that you make [MIC] knob adjustments into a dummy load or antenna system presenting an impedance very close to 50 Ohms. Rotate the [RF PWR] knob to set the desired power output. Clockwise rotation of the [RF PWR] knob will increase the power. The adjustment range is between 5 Watts and 100 Watts, and you should always use the minimum power necessary for maintaining reliable communications. The analog PO meter indicates the average power output level. SSB transmit average talk power is normally 10% to 50% of the peak power output. Voice characteristics, microphone qualities, parametric equalizer and compression settings affect actual talk power output. When performing tests (such as the setup of the [MIC] or [RF PWR] knobs), be sure to check the frequency before transmitting, so as to avoid interference to others who may already be using the frequency. Four techniques for exercising Transmit/Receive control are provided on the FT-2000, and you may choose the technique(s) that best suit your operating needs: Pressing the microphone's 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 details of VOX operation, see page 74. FT-2000 OPERATING MANUAL Page 65 USING THE AUTOMATIC ANTENNA TUNER The Automatic Antenna Tuner (hereinafter referred to as the "ATU") built into each FT-2000 is crafted to ensure a 50-Ohm load for the final amplifier stage of the transmitter. We recommend that the ATU be used whenever you operate on the FT2000. ADVICE: The ATU of the FT-2000, being located inside the station, only adjusts the impedance presented to the transceiver at the station end of your coaxial cable feedline. It does not "tune" the SWR at the antenna feedpoint itself. [. . . ] Slide the top cover toward to the rear about 1/2 inch (1 cm), then remove the top cover. Refer to Figure 2 for the mounting location for the optional filter. Position the filter so that its connectors are aligned with the mounting pins on the board, and push it into place. Replace the top cover and its nine screws. [. . . ]