Antenna length for 868 and 433 MHz

[adilhidayat]

@rudiniemeijer

868 MHz band is thus 299.792.458 / 868.000.000 = 34,54 cm. Half of this is 17,27 cm and a quarter is 8,63 cm.

So for 915 MHz, the measurements would be:

1. for full wavelength: 299.792.458 / 915.000.000 = 32,76 cm
2. for half wavelength: 32,76 cm /2 = 16.38 cm
   3( for quarter wavelength: 16.38 cm /2 = 8.19 cm
   Is this correct?

As for the cable, will any diameter do?