LDG JT-11 Manual 

11, 11 Theory Of Operation Some Basic Ideas About Impedance The theory underlying antennas and transmission lines is fairly complex, and in fact employs a mathematical notation called “complex numbers” that have “real” and “imaginary” parts. It is beyond the scope of th…

6, 6 Installation Before installing your JT-11 tuner, you should upgrade the radio's firmware to the latest version. Consult the radio's manual and the Ten-Tec web site for instructions on how to do this. When the firmware upgrade is complete, proceed with installing the tuner. …

12, 12 rises to 2, 3 or higher. As a general rule, modern solid state transmitters must operate with an SWR of 2 or less. Tube exciters are somewhat more tolerant of high SWR. If your 50 ohm antenna is resonant at your operating frequency, it will show an SWR close to 1. However, this is …

8, 8 Step 7: Unsolder and remove the coaxial cable connecting the FILTER board to the SO-239 connector on the back panel of the radio. Carefully melt the solder, then remove it using either solder wick or a solder sucker. Repeat until all excess solder is removed and the cable can …

1, JT-11 Automatic Antenna Tuner For Ten-Tec Jupiter Manual Version 1.0 LDG Electronics 1445 Parran Road, PO Box 48 St. Leonard MD 20685-2903 USA Phone: 410-586-2177 Fax: 410- 586-8475 [email protected] w…

9, LDG JT-11 9 Step 10: Reattach the FILTER board to the chassis using the screws you removed in Step 6. Do not overtighten. Step 11: Carefully check your work. Look especially for solder splashes or bridges. Make sure all wires are routed neatly, and that none will be pinched or fouled when you re…