If your transceiver has no tune button, you will end up HOOOOOLAAA-ing or whistling to tune your antenna. The HOOOOOLAAA-Ex 3000 solves this problem easily.

Take a 3.5mm stereo plug and solder a PCB mountable switch to ground and the tip pin. The whole thing is then professionally moulded into a single unit using hot glue:

The final touch is given to the product with heat-shrink tubing:

It plugs into the key jack of your transceiver and does beeeep instead of HOOOOOLAAA to tune your antenna!