I have an RG-400 jumper that is 3 feet long with N connectors. When I run 100w of UHF power (442 mhz) thru it to a Bird dummy load the coax gets warm. The wattmeter shows "flat" SWR. Is this normal for RG-400? It shows to have a 1600 volt rating. I did not think 100w is too much for it.
Thanks Bernie Parker K5BP

