- How To Hints
- Add - Ons
- Station List
- Transmitter Specs
- Multiple Transmitters
Tuning is easy, just be sure power is on, (look for the power light, down near one of the
terminal blocks). You can use the computer option to tune but a meter is best. (See manual for how to tune using computer option) Find the test holes (see manual), put the black lead of your
meter in the hole marked GND (top hole) and the red lead in the bottom hole.
See youtube video
If you don't get a reading turn the power up some (see manual diagram). First locate the Cap Tune Variable Capacitor. With the tuning tool supplied (tuning tool not required as the adjust screw is ground, but it is best to use it for peak performance), rotate it to the center of it's tuning range. It is a 10 turn Cap so the center of it's range will be 5 turns in. Then move the Coil Tap Select jumper looking for a peak in voltage. Once you find it turn the Cap tune with supplied tool to increase the voltage as much as you can.
When the voltage is as high as you can get it you are tuned! Remember, look for a peak in voltage. If you don't find a peak the unit isn't tuned. Also if you find more then one peak use the peak towards the middle of the tuning block, positions 4-8. Remember you are looking for a peak! if you turn the Cap tune all the way one way and it keeps going up you are not tuned. You must see a "hill" or a "increase then decrease".
Tuning is critical for good range. The output circuit is very high "Q" and must be tuned to do it's job. A tip for good range: use the coil tap select position that achieves a peak with the cap tune in the most counter clockwise position (least capacitance) position possible. Important: you should see a good voltage rise and fall across the range of the tuning cap, a volt or more. If the voltage barely moves as you turn the tuning cap across it's range then you may have a bad ground (see ground section) or a bad antenna connection, or other problem.