I was heading North on I-27 up towards Amarillo,tx Whistler Alerts Ka band no Ka RSID then 1 1/2 min later displays a 34.7 source. Interstate was flat as a arrow and conditions were perefect. 34.7 was alerting on off for 4 min then started ramping up constantly from the source. State trooper was in the middle of the medain running C/O Ka 34.7. I was not using my Camera on the way here due to nasty sand storm before i left Lubbock. I will be using my Camera on the way back.