User manual YAESU FT-817ND

[. . . ] HF/VHF/UHF ALL MODE TRANSCEIVER FT-817ND 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 Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 IF SHIFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Noise Blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] And the YF-122C 500 Hz filter may also be utilized, as described previously. FT-817ND Operating Manual 39 TRANSMITTER OPERATION DIGITAL MODE OPERATION (SSB-BASED AFSK) "USER" Defined Digital Modes Also provided in the FT-817ND are two convenient "USER" Digital modes, one each providing USB- and LSB-side injection, which may be used for SSTV, Fax, Pactor, and other digital operating modes. Here is an example involving the configuration of the USER mode for RTTY with USB-side injection (as opposed to LSB injection, used in the default "RTTY" mode): 1. Press the / key, as needed, to select the DIG mode (the "DIG" icon will appear on the display). Now use Menu #27 to configure the transceiver's passband response. Once in the Menu mode, rotate the knob to select Menu #27 (DIG SHIFT), and rotate the knob to set the desired BFO offset (depending on how your TNC's tones are set up). For typical high-frequency tone use, a setting of about "+2100" will be a good starting point. Finally, depending on how you wish the display to respond, you may program in a corresponding display shift, using Menu #24 (DIG DISP). Remember to press and hold in the key for one second when exiting the Menu mode. The setup of the AFSK drive level is identical to that described previously for RTTY operation. The USER-L and USER-U Digital modes should allow you to operate on any SSBbased AFSK Digital mode. Note that the "PSK31" configurations will also work well for many Digital operating situations. 40 FT-817ND Operating Manual TRANSMITTER OPERATION PACKET (1200/9600 BPS FM) OPERATION The FT-817ND is designed for operation on either 1200 bps or 9600 bps packet, and setup is similar to that described previously for SSB-based modes. A separate Data input adjustment is provided, allowing you to optimize the deviation on the FM Packet modes separately from the SSB-based Digital modes. The RX-Data output lines are fixed-level outputs, not affected by the setting of the AF Gain control. Connect your TNC to the FT-817ND's rear-panel DATA jack, per the illustration. Note that different connections are used for 1200 bps and 9600 bps Packet. Once you have entered the Menu and have selected Menu #40, rotate the knob to select either "1200" or "9600" (bps) as the Packet rate. Press the / key, as needed, to select the PKT mode (the "PKT" icon will appear on the display). If you are operating on 1200 bps, try now to connect to another station or node; you may well find that the drive level needs no further adjustment. If you are having trouble connecting due to insufficient or excessive drive from the TNC to the FT-817ND, use Menu #39 (PKT MIC) to set the drive. Use your terminal software's "test" protocol to send out test tones, and adjust the deviation by rotating the knob, which will vary the data input level to the FT-817ND's modulator. Remember to press and hold in the key for one second when adjustments are completed, so as to save the new setting for Menu #39. The 9600 bps Packet deviation setting is very critical to successful operation, and it can only be accomplished using a calibrated deviation meter; the optimum setting is usually ±2. 75 kHz (±0. 25 kHz). [. . . ] Again press the key momentarily, and rotate the knob one click clockwise to re(MW) key momentarily; select Operating Function Row 2 [MW, MC, TAG]. Press the the "M-001" indicator will flash; press and hold in the microphone's PTT key, and while (MW) key until you hear the double beep. You have now stored holding it in press the the uplink (earth station transmitting) frequency into the same memory register as we did previously for the downlink frequency. Return to Operating Function Row (A/B) key to return to VFOa on 435. 080. 00 MHz. [. . . ]