User manual THINKTEK TWEETY SYLVESTER ANIMATED TALKING CLOCK

[. . . ] It will tune dipoles, verticals, Yagis or virtually any coax-fed antenna. It will match an amazing range of antennas and impedances, far greater than some other tuners you may have considered. Also, it consumes very little power making it suitable for battery-powered operations. While resembling earlier LDG tuners in overall layout and function, the AT-200Pro represents a quantum leap in features and performance. [. . . ] In this way, your AT-200Pro "learns"; the longer you use it, the more closely it adapts itself to the bands and frequencies you use. You will probably use Memory Tuning most of the time; it takes advantage of any stored tuning settings, but automatically defaults to a Full Tuning cycle if no stored data is available. Memory frequency step size varies with band. Steps are very small on the 75 meter band to accommodate the expected higher Q of most antennas, whereas the step size is somewhat larger on 10 meters where antenna Q is usually lower. Medium Press > . 5 Sec for Auto Tune Bypass mode (Short press) To place your AT-200Pro in bypass mode, press the Tune button less than a half-second. All LEDs will flash once to confirm bypass mode. In bypass mode RF from your transmitter goes directly to the antenna with no matching. A second short press toggles the tuner back to its last tuned setting; the LEDs show which C and L relays are energized. Bypass followed by Func+Tune will clear the present memory. Bypass mode is not saved when you power down. On the next power up, the tuner will reset the last tuned settings. You can if you wish press Func-Tune to save the bypass setting, erasing the memory for that frequency. 13 Power and SWR Indication During a tuning cycle the Power and SWR LED meter indicate forward power and the present SWR, respectively. The PWR meter will indicate the present scale setting without changing it. Other status queries include: · · · · · Ant: Presently selected antenna C Up: Present PWR meter mode C Dn: Present tune mode (Auto or Semi) L Up: Present PWR meter scale L Dn: Present Auto Tune threshold 14 Button Primary Function Secondary Function Status Check (Func Power-Up (Func + Button) Hold + Button) Function Manually Store Tuning Parameters Tune Manual Tune (Long) Auto Tune (Medium) Bypass (Short) Switch between Ant 1 and Ant 2 connectors on back panel Manually increase capacitance Present Relay Settings NA Ant Toggle Hi-Lo Impedance Present Antenna [Ant 1] NA C Up Toggle Power meter Peak/Average Present PWR Meter Mode [Avg] Present Mode (Auto or Semi) [Auto] Present PWR Meter Scale [250 Watts] Present Auto Tune Threshold [2. 0] NA C Dn Manually decrease capacitance Set Auto/Manual Mode NA L Up Manually increase inductance Set PWR Meter Scale NA L Dn Manually decrease inductance Select Alternative Functions For Other Buttons NA Set Auto Tuning Threshold SWR NA Func Func+ Ant+ Tune NA NA Version Number All Reset NA NA AT-200Pro Command Reference 15 NA NA Version Peak/Avg Mtr Mode NA 12/125 Watts Mtr Scale NA Func C Up L Up Man Store Rly Settings NA Power Hi/Lo Imp Sel Ant NA Auto/Man Tune Mode NA Auto Thresh. NA Tune Ant C Dn L Dn Func + Key Func Hold + Key Hold on Power Up Hold on power-up for All Reset AT-200Pro Key Reference 16 Application Notes Mobile operation The AT-200Pro is perfectly suited to mobile operation. You can install it under the dash along with your transceiver, or remotely in the trunk. The only requirements are that the tuner remain dry, and that you provide a fused source of DC power in accordance with the specifications. The AT-200Pro does not include an internal fuse; you must provide one in the DC line. LDG recommends a 2 Amp "fast blow" fuse. Make sure the tuner is well grounded to the car body. To install the unit under the dash, you can "homebrew" a bracket. You can also use Velcro tape, although the adhesive tends to soften in hot weather. In the trunk, Velcro works well to secure the unit to the trunk floor. [. . . ] This also takes about a half second to run. If it does not find a good match, then it runs a full tuning routine. A word about tuning etiquette Be sure to use a vacant frequency to tune. With today's crowded ham bands, this is often difficult. [. . . ]