Q:
I bought a Antuner AT-100M Pro auto antenna tunner, that has the
following problem:When connecting to the antenna, it tunes well the first time connect.
After changing band or trying to tune a seconde time, it fails to tune.
This way the unit is unsusable to me.Please inform the procedure to correct this.
FW version: 1.24.10a3.98v
A:
When did you purchase this? Here's a screenshot of your order information.
Your radio model, transmission mode, and power.
Q:
thank you foir your message. I do not have the invoice anymore, I am sending a picture of the box label, may it can help? Bought it about about 6 months ago.
I tried two different radios, all at 5W, FM for tuning, than changing to CW, also QRP. Yaesu FT891 and KWD TS-680v, both with the same results.
A:
Can you record a complete video clip?
Include the following:
- Cable connections: ATU "IN" connected to the radio, "OUT" connected to the antenna.
- Set the FT891 to FM 5W and switch to the resonant frequency.
- Maintain transmission while observing the antenna tuner.
- Shift 0.1 MHz, maintain transmission, and observe the antenna tuner.