Shortwave Ham Radio http://www.shortwavehamradio.com Shortwave Ham Radio Online Discount Directory Thu, 11 Mar 2010 16:23:19 +0000 en hourly 1 power supply for laptop in radio applications http://www.shortwavehamradio.com/shortwave-ham-radio-videos/power-supply-for-laptop-in-radio-applications/ http://www.shortwavehamradio.com/shortwave-ham-radio-videos/power-supply-for-laptop-in-radio-applications/#comments Thu, 11 Mar 2010 16:21:41 +0000 admin Conventional power supply with a normal mains transformer, constructed to feed a laptop that is used in radio applications. Normal computer power supplys are mostly switching power supplies, operating on approx. 50 Khz or so. They can create huge radio noise and disturbances when you use them near a (Shortwave) radio, because the squarewave creates [...]

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power supply for laptop in radio applications

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Conventional power supply with a normal mains transformer, constructed to feed a laptop that is used in radio applications. Normal computer power supplys are mostly switching power supplies, operating on approx. 50 Khz or so. They can create huge radio noise and disturbances when you use them near a (Shortwave) radio, because the squarewave creates spikes and harmonics over a broad frequency band. Construction: mains transformer, bridge rectifier, 2 trans Darlington with a zenerdiode from basis to earth, over the zenerdiode a capacitor from approx 220 uf + a capacitor of 100N. In the video I tell about the zener, perhaps this is not clear. what I mean is this: I took the voltage to feed the stabilizing circuit only 2 Volts higher as the zener voltage and used a resistor. This for the case that the zener eventually burns out. In that case the computer is not damaged by the higher voltage that can occur in that case. The car lamp is my short circuit protection. If you watch this video on another channel as You Tube, please check youtube for the original content and possible changes in the text.

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          ]]>           http://www.shortwavehamradio.com/shortwave-ham-radio-videos/power-supply-for-laptop-in-radio-applications/feed/           Terry Nauheim: Propagation Seems Good Here Tonight http://www.shortwavehamradio.com/shortwave-ham-radio-videos/terry-nauheim-propagation-seems-good-here-tonight/ http://www.shortwavehamradio.com/shortwave-ham-radio-videos/terry-nauheim-propagation-seems-good-here-tonight/#comments Wed, 10 Mar 2010 16:27:02 +0000 admin In Propagation Seems Good Here Tonight, animated drawings correspond with shortwave radio transmissions recorded in Chelsea, New York between March 20 and 21, 2009. Imagery alters between illumination and dimness as if to sift through an atmosphere of random noise in the universe. This unpredictable environment, with its degrees of murk and clarity, propagates waves [...]

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          Terry Nauheim: Propagation Seems Good Here Tonight

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          In Propagation Seems Good Here Tonight, animated drawings correspond with shortwave radio transmissions recorded in Chelsea, New York between March 20 and 21, 2009. Imagery alters between illumination and dimness as if to sift through an atmosphere of random noise in the universe. This unpredictable environment, with its degrees of murk and clarity, propagates waves that bend, stretch, open, close, pack together and break apart.

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                    ]]>                     http://www.shortwavehamradio.com/shortwave-ham-radio-videos/terry-nauheim-propagation-seems-good-here-tonight/feed/                     A Guide To The Shortwave Radio http://www.shortwavehamradio.com/shortwave-ham-radio-videos/a-guide-to-the-shortwave-radio/ http://www.shortwavehamradio.com/shortwave-ham-radio-videos/a-guide-to-the-shortwave-radio/#comments Tue, 09 Mar 2010 16:04:33 +0000 admin http://www.shortwavehamradio.com/shortwave-ham-radio-videos/a-guide-to-the-shortwave-radio/ A Guide To The Shortwave Radio by ballboy

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                    A Guide To The Shortwave Radio

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                    A Guide To The Shortwave Radio

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                    A Guide To The Shortwave Radio by ballboy

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                    A Guide To The Shortwave Radio

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                    ]]>                     http://www.shortwavehamradio.com/shortwave-ham-radio-videos/a-guide-to-the-shortwave-radio/feed/                     Kaito KA11 Shortwave radio picking up AM reception http://www.shortwavehamradio.com/shortwave-ham-radio-videos/kaito-ka11-shortwave-radio-picking-up-am-reception/ http://www.shortwavehamradio.com/shortwave-ham-radio-videos/kaito-ka11-shortwave-radio-picking-up-am-reception/#comments Mon, 08 Mar 2010 16:01:58 +0000 admin Kaito KA11 Shortwave radio picking up AM reception. Just a small video review of the quality of reception for the KA11. Related External Links Help Picking The Perfect Cremation Urn | Free Online Article Directory Wicked Reception « Food, Fitness, Fashion

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                    Kaito KA11 Shortwave radio picking up AM reception

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                    Kaito KA11 Shortwave radio picking up AM reception. Just a small video review of the quality of reception for the KA11.

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                            ]]>                             http://www.shortwavehamradio.com/shortwave-ham-radio-videos/kaito-ka11-shortwave-radio-picking-up-am-reception/feed/                             Exposing the Unexposed 1-(04/12/2009) http://www.shortwavehamradio.com/shortwave-ham-radio-videos/exposing-the-unexposed-1-04122009/ http://www.shortwavehamradio.com/shortwave-ham-radio-videos/exposing-the-unexposed-1-04122009/#comments Sun, 07 Mar 2010 15:59:44 +0000 admin

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                            Exposing the Unexposed 1-(04/12/2009)

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                                  ]]>                                   http://www.shortwavehamradio.com/shortwave-ham-radio-videos/exposing-the-unexposed-1-04122009/feed/                                   RADIO NETHERLAND IN SPANISH AIWA WR-D700 SHORTWAVE RADIO http://www.shortwavehamradio.com/shortwave-ham-radio-videos/radio-netherland-in-spanish-aiwa-wr-d700-shortwave-radio/ http://www.shortwavehamradio.com/shortwave-ham-radio-videos/radio-netherland-in-spanish-aiwa-wr-d700-shortwave-radio/#comments Sat, 06 Mar 2010 16:54:19 +0000 admin A LITTLE TEST OF MY AIWA WR-D700 WITH AN “L” INVERTED ANTENNA OF 11 METERS, LISENT RADIO NETHERLAND. LOCATION: QUILPUE, CHILE. CAMERA SONY CYBERSHOT SCD-60 Related External Links Fender, Marshall, Aiwa, Lace Sensors and BSM Latest Netherland Dedicated Hosting Auctions Website Translation & Spanish SEO

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                                  RADIO NETHERLAND IN SPANISH AIWA WR-D700 SHORTWAVE RADIO

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                                  RADIO NETHERLAND IN SPANISH AIWA WR-D700 SHORTWAVE RADIO

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                                  A LITTLE TEST OF MY AIWA WR-D700 WITH AN “L” INVERTED ANTENNA OF 11 METERS, LISENT RADIO NETHERLAND. LOCATION: QUILPUE, CHILE. CAMERA SONY CYBERSHOT SCD-60

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                                        RADIO NETHERLAND IN SPANISH AIWA WR-D700 SHORTWAVE RADIO

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                                        ]]>                                         http://www.shortwavehamradio.com/shortwave-ham-radio-videos/radio-netherland-in-spanish-aiwa-wr-d700-shortwave-radio/feed/                                         Grundig S 350DL Shortwave Radio http://www.shortwavehamradio.com/shortwave-ham-radio-videos/grundig-s-350dl-shortwave-radio/ http://www.shortwavehamradio.com/shortwave-ham-radio-videos/grundig-s-350dl-shortwave-radio/#comments Fri, 05 Mar 2010 15:59:02 +0000 admin Working Condition with big one Related External Links

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                                        Grundig S 350DL Shortwave Radio

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                                        Grundig S 350DL Shortwave Radio

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                                        Working Condition with big one

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                                                ]]>                                                 http://www.shortwavehamradio.com/shortwave-ham-radio-videos/grundig-s-350dl-shortwave-radio/feed/                                                 jWin JX-M16 Shortwave Radio http://www.shortwavehamradio.com/shortwave-ham-radio-videos/jwin-jx-m16-shortwave-radio/ http://www.shortwavehamradio.com/shortwave-ham-radio-videos/jwin-jx-m16-shortwave-radio/#comments Thu, 04 Mar 2010 16:24:53 +0000 admin Working Condition little lose in antenna Related External Links Abstinence » Blog Archive » Evaluating the JWIN JX-CD3250 Shelf AM …

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                                                jWin JX-M16 Shortwave Radio

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                                                jWin JX-M16 Shortwave Radio

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                                                Working Condition little lose in antenna

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                                                      jWin JX-M16 Shortwave Radio

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                                                      ]]>                                                       http://www.shortwavehamradio.com/shortwave-ham-radio-videos/jwin-jx-m16-shortwave-radio/feed/                                                       Digital Radio Mondiale mit Dream http://www.shortwavehamradio.com/shortwave-ham-radio-videos/digital-radio-mondiale-mit-dream/ http://www.shortwavehamradio.com/shortwave-ham-radio-videos/digital-radio-mondiale-mit-dream/#comments Wed, 03 Mar 2010 15:59:55 +0000 admin DRM reception with cheapo Shortwave radio. Related External Links

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                                                      Digital Radio Mondiale mit Dream

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                                                      Digital Radio Mondiale mit Dream

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                                                      DRM reception with cheapo Shortwave radio.

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                                                              ]]>                                                               http://www.shortwavehamradio.com/shortwave-ham-radio-videos/digital-radio-mondiale-mit-dream/feed/                                                               Seoul Broadcaster Smuggles Uncensored Voices Out Of North Korea http://www.shortwavehamradio.com/shortwave-ham-radio-videos/seoul-broadcaster-smuggles-uncensored-voices-out-of-north-korea/ http://www.shortwavehamradio.com/shortwave-ham-radio-videos/seoul-broadcaster-smuggles-uncensored-voices-out-of-north-korea/#comments Tue, 02 Mar 2010 16:00:45 +0000 admin Shortwave radio broadcasting to North Korea is nothing new. The Voice of America has done it for decades, and many other organizations have sprouted up in recent years. The content is often a collaborative effort between South Koreans and North Korean escapees who have taken up residence in the South. But one broadcaster is giving [...]

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                                                              Seoul Broadcaster Smuggles Uncensored Voices Out Of North Korea

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                                                              Shortwave radio broadcasting to North Korea is nothing new. The Voice of America has done it for decades, and many other organizations have sprouted up in recent years. The content is often a collaborative effort between South Koreans and North Korean escapees who have taken up residence in the South. But one broadcaster is giving North Korea residents an opportunity to hear from each other. voa’s Kurt Achin reports.

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