The XM240 will have an SWR of 2:1 or less over either the CW or SSB portion
of the band if tuned according to Cushcraft's dimensions. The "mid" setting
is intended to straddle the high end of the CW band and the low end of the
phone band. I have one at 85 feet, measured for the MID dimensions, and it
covers the SSB portion of the band beautifully but the SWR starts to rise
quickly below the phone band. Your mileage will vary due to height above
ground and local issues.
73, Doug W7ZZ
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