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meetings [2018/07/11 00:52]
admin August 2018 Meeting
meetings [2018/11/12 00:46] (current)
admin Change link for Oct 2018 Presentation slides
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     * Smoke or no smoke? Will running a KW through some RG58 coax with a 3:1 SWR create smoke?     * Smoke or no smoke? Will running a KW through some RG58 coax with a 3:1 SWR create smoke?
   * July - No Meeting, due to [[http://​www.arrl.org/​field-day|Field Day]]   * July - No Meeting, due to [[http://​www.arrl.org/​field-day|Field Day]]
-  ​* **August 4th:** WTØDX -- Bill Thomas will give a presentation on //The New Digital Modes FT8 and MSK144//And NØCU -- Bill Leonard ​will discuss using MSK144 for 2 & 6 meter meteor scatter communications. +  * August 4th: WTØDX -- Bill Thomas will give a presentation on {{ :​technical:​ft8_wt0dx_v1.pdf |The New Digital Modes FT8 and MSK144}}He will also discuss using MSK144 for 2 & 6 meter meteor scatter communications.  
-  * September 1st +  * September 1st
-  * October 6th+    * The topic for the meeting will be Smith charts. The plan is to create a crude Smith chart using our basic knowledge of transmission lines to understand how the chart works. Then using real charts and software solve problems. Finally, test the solutions using a vector network analyzer. The process should give us a better understanding of what goes on in the complex world of transmission lines. 
 +    * Smoke or No Smoke: To improve the efficiency of a magnetic loop antenna the diameter of the tubbing use to make the loop is doubled. The capacitor for the original antenna was just adequate. Smoke or no smoke? 
 +  ​* **October 6th:** 
 +    * Our speaker will be Phil Atwater -- KIØGL, who will talk on his work to reduce common mode currents on open line. After the meeting he will have an open house at his station which is less than a mile from Station 3 on the same road as the meeting. You can get a preview of some of his home brew equipment on [[https://​www.qrz.com/​db/​KI0GL|his QRZ page]]. Slides: {{ :​technical:​reducing_common_mode_feedline_current.ppt |Reducing Common-Mode Feedline Current}} 
 +    * Frank, KØFEI will have a QRP portable station up on FT8 for show and tell. 
 +    * Larry KØNA will have his new budget friendly 200 MHz storage scope for show and tell.  
 +    * We will have report on the final preparations for the Tech Fest. 
 +    * Smoke or No Smoke? A 10K 15 watt bleeder resistor failed in an old radio. A 15 K 10 watt resistor was found in the junk box. Smoke or no smoke? Any hazards one needs to be aware of?
   * November 3rd: [[techfests|Fall Techfest]]   * November 3rd: [[techfests|Fall Techfest]]
   * December 1st: Holiday Lunch   * December 1st: Holiday Lunch
meetings.1531270343.txt.gz · Last modified: 2018/07/11 00:52 by admin