<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class=""><div style="caret-color: rgb(0, 0, 0); font-size: 10pt; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: helvetica, arial;" class=""><br class=""><div id="yiv0678201248" class=""><div class=""><div class="yiv0678201248WordSection1"><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">Reminder: NVIS Test scheduled for Saturday March 7<sup class="">th</sup><span class="Apple-converted-space"> </span>at 0900. The following frequencies<span class="Apple-converted-space"> </span><u class="">may<span class="Apple-converted-space"> </span></u>be used:</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class=""> </span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">75 meters = 3.913 Mhz LSB</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">60 meters = 5.370 Mhz USB (CH-3)</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">40 meters = 7.282 Mhz LSB</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class=""> </span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">Note: 60 meters is USB in order to keep emissions within the F.C.C. mandated channel limits</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class=""> </span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">We will obtain the Maximum Useable Frequency (often called the FoF2) info to determine which freq to use. NVIS theory suggest using the amateur band that is closest but<span class="Apple-converted-space"> </span><u class="">below</u><span class="Apple-converted-space"> </span>the projected FoF2 frequency.</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class=""> </span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">Antenna height above ground – NVIS Theory suggest that your horizontal antenna should be between .10 and .15 wavelengths high. We selected 10 to 15 feet because we normally would be setting up portable using PVC pipe as antenna supports and that height is a good compromise for 80, 60 and 40 meters which would be the normal amateur bands used for NVIS communications. The U.S Military utilizes an AS-2259/GR antenna with a center support pole of 15 feet for NVIS communications. You can do a web search and find the plans for building such an antenna. DX-Engineering sells a kit (minus PVC pipe) for building such an antenna.</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class=""> </span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">If you are interested in learning more about the Theory behind NVIS Communications you can do a web search and find a free PDF download of the manual: Near Vertical Incidence Skywave – Theory, Techniques and Validation by: Fielder and Farmer. This manual is considered by many to be the “Bible” of NVIS.</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class=""> </span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">I will be putting out a “Communications Procedure Plan” for the test as we get closer to Saturday.</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class=""> </span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">Enjoy the Hobby</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class=""> </span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class="">de KR4X 73</span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><b class=""><span style="font-size: 14pt; font-family: Arial, sans-serif;" class=""> </span></b></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span style="" class=""> </span></div><div class="yiv0678201248MsoNormal" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"> </div></div></div><div class=""></div>--<span class="Apple-converted-space"> </span><br class="">Clubhouse open every Monday evening at 7:30 PM<br class="">General membership meeting on the first Monday of the month<br class="">Program nights on the third Monday of the month<br class="">--<br class="">To subscribe or unsubscribe from this group, visit<span class="Apple-converted-space"> </span><br class=""><a rel="noopener noreferrer" target="_blank" href="http://hamclub.org/wp/?page_id=139" style="color: purple; text-decoration: underline;" class="">http://hamclub.org/wp/?page_id=139</a><br class="">--<br class="">Visit our website at<span class="Apple-converted-space"> </span><a rel="noopener noreferrer" target="_blank" href="http://www.hamclub.org/" style="color: purple; text-decoration: underline;" class="">http://www.hamclub.org</a><br class="">You can now join or renew your membership online<br class="">---<span class="Apple-converted-space"> </span><br class="">You received this message because you are subscribed to the Google Groups "Tampa Amateur Radio Club" group.<br class="">To unsubscribe from this group and stop receiving emails from it, send an email to<span class="Apple-converted-space"> </span><a rel="noopener noreferrer" ymailto="mailto:tarc+unsubscribe@hamclub.org" target="_blank" href="mailto:tarc+unsubscribe@hamclub.org" style="color: purple; text-decoration: underline;" class="">tarc+unsubscribe@hamclub.org</a>.<br class="">To view this discussion on the web visit<span class="Apple-converted-space"> </span><a rel="noopener noreferrer" target="_blank" href="https://groups.google.com/a/hamclub.org/d/msgid/tarc/5e5bcf98.1c69fb81.18f60.9512SMTPIN_ADDED_BROKEN%40mx.google.com?utm_medium=email&utm_source=footer" style="color: purple; text-decoration: underline;" class="">https://groups.google.com/a/hamclub.org/d/msgid/tarc/5e5bcf98.1c69fb81.18f60.9512SMTPIN_ADDED_BROKEN%40mx.google.com</a>.</div></div></div></blockquote></div><br class=""></body></html>