The ham radio free encyclopedia https://wiki.xzgroup.net/ 2026-10-02T16:58:40+00:00 https://wiki.xzgroup.net/ https://wiki.xzgroup.net/_media/wiki/dokuwiki.svg text/html 2026-10-02T16:42:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/wiki/featured_article?rev=1790959334&do=diff 44net 44net is an Internet Protocol network for amateur radio experimentation. It connects stations and services through a combination of radio links, wired networks and tunnels. A public 44net address identifies a network endpoint; the path to it can include several kinds of transport. Recording that path makes routing and measurement results easier to interpret. text/html 2026-10-02T16:42:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/wiki/about?rev=1790959334&do=diff About Wikiham Wikiham - The ham radio free encyclopedia is an English-language encyclopedia for the amateur radio community, operated by XZGroup. Its aim is to make radio knowledge understandable, practical and reusable. Articles should explain terms, show how conclusions were reached and link to dependable sources. text/html 2026-10-02T16:42:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/wiki/contributing?rev=1790959334&do=diff Contributing to Wikiham Wikiham is open to readers. Editing access is granted to approved contributor accounts by the administrator. Editing a page Log in and choose Edit. Start with a short explanation, use headings to organise the article and add an edit summary when saving. Use text/html 2026-10-02T16:36:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/wiki/did_you_know?rev=1790958991&do=diff * A low standing wave ratio does not by itself prove that an antenna radiates efficiently. * In free space, wavelength in metres is approximately 300 divided by frequency in megahertz. * A RIPE Atlas probe measures the network path available to that probe, including any tunnels. text/html 2026-10-02T16:29:29+00:00 admin (admin@undisclosed.example.com) https://wiki.xzgroup.net/deployment_validation_71a5bd53?rev=1790958569&do=diff text/html 2026-10-02T16:26:01+00:00 admin (admin@undisclosed.example.com) https://wiki.xzgroup.net/deployment_validation_d58559c5?rev=1790958361&do=diff text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/reference/glossary?rev=1790958125&do=diff text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/projects/start?rev=1790958125&do=diff text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/networks/start?rev=1790958125&do=diff text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/station/start?rev=1790958125&do=diff text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/digital/start?rev=1790958125&do=diff text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/operating/start?rev=1790958125&do=diff text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/antennas/start?rev=1790958125&do=diff text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/bands/start?rev=1790958125&do=diff text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/basics/start?rev=1790958125&do=diff text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/wiki/article_template?rev=1790958125&do=diff Article template Copy the following structure into a new article and adapt it to the subject. Replace the prompts with your own text before publishing. ====== Descriptive article title ====== A short introduction explaining the subject and who the article helps. ===== Overview ===== Explain the principle or project goal. Define specialised terms. ===== Design or method ===== Describe the setup, versions, dimensions and test conditions. ===== Results ===== Report measurements with units. S… text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/amateur_radio?rev=1790958125&do=diff Amateur radio Amateur radio combines communication, experimentation and learning. Operators use radio to make local and long-distance contacts, develop technical skills and explore propagation. Frequency and wavelength Frequency describes how quickly a signal oscillates and is measured in hertz (Hz). Common units are kHz, text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/glossary?rev=1790958125&do=diff Amateur radio glossary Term Meaning Antenna A structure used to transmit or receive electromagnetic energy. Band plan Guidance coordinating activities and modes within a radio band. Callsign An identifier assigned to a licensed station or operator. text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/articles?rev=1790958125&do=diff All articles Browse Wikiham's articles in alphabetical order, or use the search box to find a specific subject. text/html 2026-10-02T16:22:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.xzgroup.net/transmission_line?rev=1790958125&do=diff Transmission line A transmission line carries radio-frequency energy between components. In an amateur radio station, the line connecting a transceiver and an antenna is commonly called the feed line. Types Coaxial cable is widely used because its shielding and routing are convenient. Balanced lines are another option. The suitable line depends on frequency, the installation and the equipment being connected.