{"id":19732,"date":"2016-06-30T08:50:27","date_gmt":"2016-06-30T12:50:27","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=19732"},"modified":"2016-06-30T08:50:27","modified_gmt":"2016-06-30T12:50:27","slug":"alexanders-report-from-ham-radio-friedrichshafen","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2016\/06\/alexanders-report-from-ham-radio-friedrichshafen\/","title":{"rendered":"Alexander’s report from Ham Radio Friedrichshafen"},"content":{"rendered":"
\"5291678534939049c349d6\"<\/a>

The Friedrichshafen exhibition grounds. (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

Many thanks to SWLing Post<\/em> contributor, Alexander (DL4NO), who shared a few notes with me from his visit at the\u00a0Friedrichshafen Ham Radio convention. Alexander has kindly allowed me to post his\u00a0notes here on the SWLing Post. <\/em>Alexander writes:<\/em><\/p>\n

The first booth I visited was of Dokufunk (http:\/\/www.dokufunk.org\/<\/a>). They collect QSLs and other information about wireless history for scientific evaluation. Its head Wolf, OE1WHC, was a moderator for the Austrian shortwave service which does not exist anymore. But ORF still supports Dokufunk. They have a large archive and even the equipment to digitize large quantities if information. I brought them a package of ham radio periodicals, mostly issues of DL-QTC, the predecessor of cqDL, and got some QSPs (magazine of OEVSV) back. I collect those periodicals to gain and provide access. Seehttp:\/\/www.dl4no.de\/thema\/amateurfunk-zeitschriftenarchiv.htm<\/a>, catalog at the bottom.<\/p>\n

The flea market filled three exhibit halls. If you needed a tube heating for your shack you had a wide choice, from radios to ham equipment to scopes. On the newer side you could get Windows XP packages with the appropriate hardware.<\/p>\n

Flea Market Photos\u00a0Courtesy of Ham Radio Friedrichshafen<\/strong><\/h2>\n
\"A3:<\/a>

A3: Stand mit historischem Radioger\u00e4ten<\/p><\/div>\n

\"A3:<\/a>

A3: Stand mit Empf\u00e4ngern und Messger\u00e4ten (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

\"A3:<\/a>

A3: Stand mit Empf\u00e4ngern und Messger\u00e4ten, hier zwei Schweizer an einer historischen Feld-Telefonzentrale (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

\"A3:<\/a>

A3: Koffer mit Ham-Radio-Aufklebern aus mehreren Jahrzehnten (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

\"A3:<\/a>

A3: Alte Radioger\u00e4te (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

\"A3:<\/a>

A3: Alte Empf\u00e4nger und Radios (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

\"A3:<\/a>

A3: Stand mit Empf\u00e4ngern und Messger\u00e4ten (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

Yaesu, Icom & Co where there, of course. A large part of Hall 1 had booths for most of the European ham radio societies and other entities. Several attractions for the youths were there: A fox hunt around the hall, possibilities to solder simple circuits and more. The exhibit center even provides a kindergarden.<\/p>\n

\"A1:<\/a>

A1: Hilberling PT 8000A (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

\"A1:<\/a>

A1: ICOM (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

\"A1:<\/a>

A1: Wimo, BABY Loop (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

\"A1:<\/a>

A1: YAESU Funkger\u00e4te (Photo: Ham Radio Friedrichshafen)<\/p><\/div>\n

Hamradio had lots of presentations. The \u201cSDR Academy\u201d run all over Saturday<\/span> \u2013 completely in English. See http:\/\/www.sdra-2016.de<\/a>. Last year\u2019s presentations are on Youtube. Search for \u201cSDRA-2015\u201d.<\/p>\n

My presentation was titled \u201cHAMNET On 70 cm \u2013 Possibilities and Limitations\u201d. I should explain that HAMNET is our way to use the 44.0.0.0\/8<\/a> TCP address space reserved for Ham Radio use. Starting in Germany and especially Austria we use more or less standard WLAN equipment to build a ham radio intranet. User access is mostly on 2.3 GHz and links on 5 GHz. Where we have gaps in the wireless coverage we use Internet wormholes. This way you can access for example packet radio sites in Canada. See http:\/\/hamnetdb.net<\/a>.<\/p>\n

2,3 GHz and up means exclusively line-of sight connections. Quite some OMs cannot reach access points this way. The only alternative up to now has been VPN connections through the Internet. I think we could provide relatively fast access on 70 cm. Here in Germany we have two 200-kHz channels for such uses. They were defined in the 1980s for packet radio access up to 76 kbps. This technology is next to dead.<\/p>\n

Theoretical calculations show that we could provide up to 1 Mbps and cover up to 50 km if we use modern modulation schemes. You could even improve throughput by making TCP\/IP less gossipy. I proposed to use SDR blocks like HackRF or LimeSDR and combine them with a RF frontend (filter, preamp, PA, fast switching). The hardware is more or less readily available, but this is mostly a software topic. While HAMNET relies on standard WLAN equipment with all its limitations for ham radio usage, this system could be completely open. We could it adapt to all our needs and ideas. In the end we could port it back to the microwave bands.<\/p>\n

Even if we only work on the lowest protocol levels this will pose quite some challenges. We would need programmers with quite varied expertise from TCP\/IP protocols to SDR technology. My presentation was to attract such people. Personally I will not program anything. As a technical writer with a quite wide expertise I might be a bracket for the project and write documentation for it.<\/p>\n

\"PICT3344\"<\/a>

A \u201cPeltier Lamp\u201d: The candle heats one side of the Peltier element while the other is cooled by the heat sink. This produces enough electricity to light a LED. (Photo: Alexander DL4NO)<\/p><\/div>\n

At the opposite end of the exhibit center another fair went on, called Maker Faire. In former times you would have called it \u201cmake it yourself\u201d. The exhibits there went from computer modding to 3D printing, knitting and also ham radio. For this I modified my presentation a bit: \u201cWLAN Below 1 GHz \u2013 Do You Want To Program For It?\u201d The technology I talked about is near hot topics like Internet of Things or traffic telematics.<\/p>\n

\"Booth<\/a>

Booth of a high school showing the robots they built. (Photo: Alexander DL4NO)<\/p><\/div>\n

\"PICT3337\"<\/a>

Booth of a high school showing the robots they built. (Photo: Alexander DL4NO)<\/p><\/div>\n

vy 73
\nAlexander
\nDL4NO<\/p><\/blockquote>\n

Thanks so much for sharing your notes from\u00a0Friedrichshafen, Alexander. I look\u00a0forward to attending one year myself! \u00a0I’m fascinated with the fact that the bulk of the event is indoors–what an incredible venue.<\/p>\n

Any other Post<\/em> readers attend Ham Radio\u00a0Friedrichshafen? Please comment!<\/p>\n","protected":false},"excerpt":{"rendered":"

Many thanks to SWLing Post contributor, Alexander (DL4NO), who shared a few notes with me from his visit at the\u00a0Friedrichshafen Ham Radio convention. Alexander has kindly allowed me to post his\u00a0notes here on the SWLing Post. Alexander writes: The first booth I visited was of Dokufunk (http:\/\/www.dokufunk.org\/). They collect QSLs and other information about wireless […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3194,545,3,43],"tags":[2267,2268,3950,5227,5226],"class_list":["post-19732","post","type-post","status-publish","format-standard","hentry","category-guest-posts","category-ham-radio","category-news","category-shortwave-radio","tag-alexander-von-obert","tag-alexander-von-obert-dl4no","tag-friedrichshafen","tag-friedrichshafen-2016","tag-ham-radio-friedrichshafen"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-58g","jetpack-related-posts":[{"id":53132,"url":"https:\/\/swling.com\/blog\/2022\/06\/a-few-photos-and-notes-from-hamradio-2022-in-friedrichshafen\/","url_meta":{"origin":19732,"position":0},"title":"Alexander shares a few photos and notes from Hamradio 2022 in Friedrichshafen","author":"Thomas","date":"June 29, 2022","format":false,"excerpt":"Many thanks to SWLing Post contributor, Alexander (DL4NO), who shares the following photos and notes from Friedrichshafen: First Hamradio After Two Years Alexander (DL4NO) Finally the biggest amateur radio event in Europe happened again: Last weekend hams from Germany, Austria, Switzerland, France, Italy, Poland, Belgium, Netherlands, GB and more gathered\u2026","rel":"","context":"In "Guest Posts"","block_context":{"text":"Guest Posts","link":"https:\/\/swling.com\/blog\/category\/guest-posts\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Friedrichshafen-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Friedrichshafen-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Friedrichshafen-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Friedrichshafen-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Friedrichshafen-1.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Friedrichshafen-1.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":38711,"url":"https:\/\/swling.com\/blog\/2019\/07\/sdr-academy-presentation-videos\/","url_meta":{"origin":19732,"position":1},"title":"SDR Academy presentation videos","author":"Thomas","date":"July 28, 2019","format":false,"excerpt":"Many thanks to SWLing Post contributor, Alexander (DL4NO), who writes: Parallel to the Hamradio fair in Friedrichshafen, Germany, there are talks and whole conferences. Over the last years, the \u201cSoftware-Definded Radio Academy\u201d (SDRA) was one of them. You find the presentations on Youtube: https:\/\/www.youtube.com\/playlist?list=PL6D0CPBQoIVpMflpSZFqbkmr2Xt_10D_Z At least most of them are\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/spectrum-FT8.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/spectrum-FT8.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/spectrum-FT8.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/spectrum-FT8.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":32594,"url":"https:\/\/swling.com\/blog\/2018\/06\/ham-radio-friedrichshafen-2018-flea-market-photos\/","url_meta":{"origin":19732,"position":2},"title":"Ham Radio Friedrichshafen 2018 Flea Market Photos","author":"Thomas","date":"June 3, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor, Mehdi Asgari (DF2HF \/ NM9A), who shares photos from the 2018 Friedrichshafen ham radio convention flea market. Be sure to also check out photos we posted yesterday of Friedrichshafen vendors. Thank you, Mehdi! Ham Radio Friedrichshafen 2018 Fea Market Photos by\u00a0Mehdi Asgari (DF2HF) Mehdi\u2026","rel":"","context":"In "Ham Radio"","block_context":{"text":"Ham Radio","link":"https:\/\/swling.com\/blog\/category\/ham-radio\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-Flea-Market-1-of-31-150x150.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-Flea-Market-1-of-31-150x150.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-Flea-Market-1-of-31-150x150.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-Flea-Market-1-of-31-150x150.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-Flea-Market-1-of-31-150x150.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":32544,"url":"https:\/\/swling.com\/blog\/2018\/06\/ham-radio-friedrichshafen-2018-vendor-photos\/","url_meta":{"origin":19732,"position":3},"title":"Ham Radio Friedrichshafen 2018 Vendor Photos","author":"Thomas","date":"June 2, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor, Mehdi Asgari (DF2HF \/ NM9A), who shares photos from the Friedrichshafen ham radio convention this year. Tomorrow, we'll post his photos of the flea market area! Ham Radio Friedrichshafen 2018 by\u00a0Mehdi Asgari (DF2HF) Mehdi is a software engineer and SDR lover working in Berlin.\u2026","rel":"","context":"In "Antennas"","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-1-of-46-150x150.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-1-of-46-150x150.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-1-of-46-150x150.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-1-of-46-150x150.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-1-of-46-150x150.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":13937,"url":"https:\/\/swling.com\/blog\/2015\/07\/christophs-photo-tour-of-friedrichshafen-2015\/","url_meta":{"origin":19732,"position":4},"title":"Christoph’s photo tour of Friedrichshafen 2015","author":"Thomas","date":"July 6, 2015","format":false,"excerpt":"SWLing Post reader,\u00a0Christoph Ratzer, has posted a photo gallery of\u00a0the\u00a02015\u00a0Friedrichshafen Ham Radio convention in Germany. Click here to view Christoph's gallery. Many thanks, Christoph, for this fine photo tour! I actually recognize a couple of friends in those photos. I have always wanted to visit\u00a0Friedrichshafen and I certainly hope to\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"Photo by Christoph Ratzer","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/07\/Friedrichshafen.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/07\/Friedrichshafen.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/07\/Friedrichshafen.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/07\/Friedrichshafen.jpg?resize=700%2C400 2x"},"classes":[]},{"id":42882,"url":"https:\/\/swling.com\/blog\/2020\/04\/ham-radio-friedrichshafen-2020-has-been-cancelled\/","url_meta":{"origin":19732,"position":5},"title":"Ham Radio Friedrichshafen 2020 has been cancelled","author":"Thomas","date":"April 16, 2020","format":false,"excerpt":"Many thanks to SWLing Post contributor, Harald Kuhl, who shares the following announcement from Ham Radio Friedrichshafen: Radio silence due to coronavirus COVID-19: Ham Radio not taking place as planned 15.04.2020 Friedrichshafen \u2013 Due to current developments in regard to the spread of coronavirus COVID-19, Messe Friedrichshafen has been forced\u2026","rel":"","context":"In "Ham Radio"","block_context":{"text":"Ham Radio","link":"https:\/\/swling.com\/blog\/category\/ham-radio\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-Flea-Market-25-of-31-1-1024x768.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-Flea-Market-25-of-31-1-1024x768.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/06\/Ham-Radio-Friedrichshafen-2018-Flea-Market-25-of-31-1-1024x768.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/19732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=19732"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/19732\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=19732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=19732"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=19732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}