No one has precisely one quarter wave length antennas. Half or full length would be more ideal, save for resistance. Again, no perfect antenna. SWR changes wi

No one has precisely one quarter wave length antennas. Half or full length would be more ideal, save for resistance. Again, no perfect antenna. SWR changes with weather conditions. The antenna just has to be good enough for the job. Receiving can be accomplished with much weaker antennae than transmission.