Here's the signal strength at 10 degrees elevation from a 43ft vertical, referenced to the value on 40m: 30m: +0.8dB 20m: +3.0dB 17m: -0.1dB 15m: -2.2dB 12m: -1.6dB 10m: -1.8dB OK, it falls off a bit above 17m, but it's hardly a disaster! Steve G3TXQ