QRP 1-30MHz Manual Days Antenna Tuner Kit

1. Schematic
2. The Kit
3. Specification
4. Build Instructions
5. References
6. Videos

Schematic

The Kit

Specification

The QRP tuner can tune to the original non-resonant antenna by adding the appropriate inductance or capacitance so that the radio can work properly. Can be used as a band-pass filter, the emission can reduce unnecessary radiation outside the band, the cross-modulation and interference-band receiver can be reduced again.

Specification:

• Direct transfer power: less than 20W
• Tuning the Input power: Less then 3W
• Tuning indication is a LED display
• Interface: Q9 type (BNC)
• Network topology: T-type
• Antenna Interface: Q9 type (BNC)
• Operating frequency: 1-30MHz
• Match the antenna impedance range: about: 30 ~ 300Ω
• Carrying RF power: less than 15W
• Tuning required RF power: less than 3W

• A waterproof sealed box - 1 off
• Stickers (used to determine the position of the transfer hole) - 1 off
• Q9 (BNC) Block (lug) - 2 off
• Ordinary wire segment - 1 roll
• Variable capacitor 2
• Small knobs - 2 off
• 0.25 countersunk head screws (for fixed variable capacitor) - 4 off
• 0.25 head screws - 2 off
• 0.3 gasket - 4 off
• 0.3 nut - 2 off
• Multi-knife switch (12 stalls) - 1 off
• A large knob - 1 off
• T106-2 the toroid (red) - 1 off
• 0.5 enameled wire - 1 roll
• A circuit board (standing wave indicator) - 1 off
• A stall switch - 1 off
• The red light emitting diode - 1 off
• 51 ohm 2W resistor - 3 off
• FT37-43 toroid (Black) - 1 off
• 1K resistor (light-emitting diode current limit) - 1 off
• 1N60 - 1 off
• 0.1uF capacitor - 1 off

Build Instructions

References

Videos