Let’s not forget that for HF antennas to have a low angle of takeoff for DX capability, they should be a quarter wavelength off the ground. With the lowest frequency on the HF band being 1.8 MHz, 80 foot is more than easily justified.
http://www.dx-antennas.com/Height%20versus%20take%20off%20angle.htm Thank You, Brian Webster 214 Eggleston Hill Rd. Cooperstown, NY 13326 (607) 643-4055 Office (607) 435-3988 Mobile (208) 692-1898 Fax Skype: Radiowebst www.wirelessmapping.com www.Broadband-Mapping.com From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chuck McCown Sent: Wednesday, February 22, 2017 10:35 AM To: af@afmug.com Subject: Re: [AFMUG] OT: Smallest amateur radio antenna that would require height to function well Frequency, gain, directivity all play a part. The normal rule of thumb is that if your tower did not blow over in the last big storm the antenna was not big enough. You could stick up a 1.2 GHz omni about the size of your thumb, or even a 10 GHz beacon that would be even smaller. 2 meter quarter wave whip is 19 inches and could be mounted on the side of the tower. From: Paul McCall Sent: Wednesday, February 22, 2017 8:23 AM To: af@afmug.com Subject: [AFMUG] OT: Smallest amateur radio antenna that would require height to function well Looking to see what type of antenna (without a lot of wind load) that a customer can put on an 80ft. tower. They do not yet have their amateur license but working on it. By placing an amateur radio antenna, the FCC mandates the local government to let them put up an 80 ft. tower. I am not certain there has to be any kind of justification of what type of antenna (or anything else) but just in case, it would be nice to have some insight. Since I am not an amateur license holder, I am not knowledgeable on the subject. At the “end of the day” once the tower is erected and final inspection is completed, then the customer will also put up an ePMP Force 200 to get service from us at 6miles away. Paul Paul McCall, President PDMNet, Inc. / Florida Broadband, Inc. 658 Old Dixie Highway Vero Beach, FL 32962 772-564-6800 pa...@pdmnet.net www.pdmnet.com www.floridabroadband.com
