In reply to 2E0SCZ:
despite much interference, which I am told is a combination of using a 2m >vertical dipole and the summit radar station
I think you’ll find it’s the 5 channels of 16GW erp each on 24cms that does the damage more so than the antenna polarization. That’s 80GW erp for those who count slow! 
Enough to upset most electronic devices.
Andy
MM0FMF