Dave Saxton wrote:What are those vulnerabilities?
VHF is not a good fire control frequency.
VHF antennas are larger so more of an issue installing on an aircraft. I'm not aware of a VHF electronically scanned array, for example.
There is only one Frequency band for the stealth force to jam, and VHF is less agile and has a greater required bandwidth for the same pulse size so easier to jam.
There is a reason VHF is not the preferred frequency for fire control applications.
People are just not going to go to the huge expense of changing all of their radars to VHF. It has too many disadvantages and there just aren't that many stealth aircraft out there. If VHF was the preferred frequency for military applications we would all be using it already. It is not.