Description:
This antenna tuner is an automatic tuning antenna. When installing and using it, please try to use a short coaxial cable to connect the short wave machine to the in end of the antenna; use the out port to connect your antenna. When it detects that the tuned transmit power is reached and the standing wave value is greater than 1.3, the tuning can be started, and after the tuning is completed (within the ability of it, if your antenna is not well matched, it will not be able to be reduced below 1.3, please adjust the antenna), you can perform high-power communication test. The finished board comes with a 128 x 64 OLED display screen, which takes into account power saving and display font coordination; please pay attention to the consistency of the data cable (dat clk) when installing the screen.
Technical Parameter:
Allowable supply voltage range: 10-15V DC
Maximum current consumption: 400mA
Maximum working power: 100W
Maximum measurable power: 150W
Start to input tuning power: 5W (10W or more is recommended, and the maximum should not exceed 30W)
Minimum measurable power: 0.1W
Power measurement accuracy: 10%
Minimum load inductance value 0.05μh
Maximum load inductance value: 8.53μh
Minimum load capacitance: 10pf
Maximum load capacitance value: 1869pf
Package List:
Automatic Antenna Tuner x 1 set
Note:
This finished board is a network open source project, we provide a test and modification platform for ham without DIY conditions
The sound of the relay picking up proves that it has worked, but the screen does not show that the line is not checked
1. Make sure the connection sequence of the screen cable is correct.
2. Working mode and tuning transmit power of shortwave radio.