The Kannad Integra Kit does no include an antenna plese refer to the Antenna section of this form to select the applicable antena for you aircraft.
The Artex 345 Kit and the ACK E04 Kit include a WHIP STYLE antenna these antennas are good up to a VNE of 250 knots. If your aircraft have a VNE Greater than 250 knots you will need to purchase an antenna suitable fory your aircraft VNE See the Antenna section of the form.