wrote:
I recall reading about false lobes on the glideslope, and have seen it
firsthand doing practice approaches in VMC. I thought it was due to antenna
sidelobes, and thus the localizer might be subject to a similar phenomenon. I have
yet to see anyone reference this, so is there a technical reason why they don't exist?
One of the localizer transmitter frequencies have a different antenna pattern to
interleave the sidelobes perhaps?

-Cory


There are some LOCs that are limited in the ability to provide
transitions because of false on-course indications. Seems I recall
Billings, Montana was (is) one of those.