radio mobile
154 links - and 6 categories
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Antennas : Portable- An automatically tuned 7 to 30 MHz mobile antenna
- For every radio amateur who loves to travel by car, a mobile installation soon becomes a necessity.
While in inhabited areas there is usually some coverage of VHF repeaters, in many other places VHF radios are useless. In these very places, HF can provide reliable contacts, and a lot of fun, from anywhere.
[ Hits: 258 | Votes: 1 | Rating: 10 ]
- ARRL Exam Review for Ham Radio
- Online browser-based resource for your computer, tablet or other mobile device. Use this review and practice exam resource with the current editions of ARRL License Manuals.
[ Hits: 67 | Votes: 0 | Rating: 0 ]
- DK0TE Mobile version WebSDR Germany
- This is the mobile version of the DK0TE WebSDR providing HF ham radio bands coverage.
[ Hits: 176 | Votes: 2 | Rating: 5.5 ]
- Digirig Mobile
- Digirig is an open-source integrated digital modes interface for amateur radio.
As a differentiating feature, Digirig only requires a single USB connection to the computer with all the digital goodness packed in a single small enclosure. The internals include a USB hub, audio codec, a fully featured serial CAT (Computer Aided Transceiver) interface, and potentially other modules such as GPS receiver for time synchronization.
[ Hits: 148 | Votes: 1 | Rating: 2 ]
- Evolution of Car Radios: From Marconi to Motorola
- his historical account traces the development of car radios from Marconi's mobile wireless telegraph station on a steam engine vehicle in 1901 to Motorola's iconic car radio models in the 1930s. It highlights key milestones such as Alfred Grebe's radio-telephone experiments on Long Island and the introduction of Marconi-Phone 8 radios by the Daimler Company in England. The narrative explores technological advancements, including the transition from TRF to Super-Heterodyne circuitry and the integration of push-button controls. The evolution from vacuum tubes to transistors and compact discs is also documented, showcasing the continuous innovation in automotive entertainment systems.
[ Hits: 47 | Votes: 1 | Rating: 1 ]
- Taking a look at the 900 MHz band
- Use of the band as Amateur Radio is secondary in this band to federal radiolocation systems, industrial, scientific and medical devices, federal fixed and mobile systems and the M-LMS. Bandplans for hams. Allocation in 902 - 928 MHz
[ Hits: 50 | Votes: 0 | Rating: 0 ]
- A Magic Ground Mobile Antenna
- Experimenting and testing vertical antenna for HF bands on mobile operations.
[ Hits: 113 | Votes: 0 | Rating: 0 ]
- A mobile radio installation
- Detailing a Yaesu FT-857 and ATAS-120 installation in a 1997 Toyota Tacoma, the author used Polar Plot to map signal strength. Using a hand truck with a laptop, FT-817, and an Iron Horse antenna, they circled a chalk-outlined 100-foot diameter, revealing potential nulls towards the truck's rear and through the cab, offering insights into antenna performance.
[ Hits: 43 | Votes: 1 | Rating: 3 ]
- G4AKC Bicycle Mobile
- A web site dedicate to pedestrian and bicycle amateur radio mobile operations.
[ Hits: 158 | Votes: 8 | Rating: 10 ]
- PD Powerbank for SOTA Radios
- This post describes how the newish Power Delivery (PD) mode mobile powerbanks can be used to power a SOTA transceiver as well as keeping your other hiking devices charged.
[ Hits: 144 | Votes: 0 | Rating: 0 ]
- Reducing the Cable Mess
- Optimizing the cable connections for cat control and audio input output by implementing the digirig mobile. A small audio and rig control interface, with a single USB cable supports most QRP radios requiring external audio and CAT control facilities
[ Hits: 155 | Votes: 0 | Rating: 0 ]
- Ham Radio: Using Repeaters
- The most basic form of repeater receives communication on one frequency and re-transmits at a different frequency. This is known as duplex communication.
Repeaters are generally set up to operate with FM modulation on the amateur bands within the VHF (30 MHZ – 300 MHZ) and UHF frequencies (300 MHZ – 3 GHz). These are generally the frequencies used by handheld and mobile devices.
[ Hits: 92 | Votes: 1 | Rating: 8 ]
- Everything you needed to know about Radio Receivers and Scanners
- Tuning into the airwaves for new and interesting transmissions has fascinated enthusiasts since the very earliest days of radio. As a result of advances in computer and radio technology, the equipment packed radio rooms of the past are now replaced by scanning receivers sometimes just the size of a mobile phone.
What can radio receivers/scanners pick up? What types of radio receivers/scanners are there? What can and cannot be monitored legally? Best practice when using a radio receiver/scanner
[ Hits: 178 | Votes: 0 | Rating: 0 ]
- AllScan
- AllScan is a free and open-source web app for AllStar nodes that provides Favorites Management features, AllStarLink Stats integration, and connection monitoring and control functions.
Shows your favorites in a Dashboard summary table with Keyed status, Connected Node count and other statistics.
Continually scans the status of each favorite using ASL's Stats API data showing which favorites are active and have recently been active.
Allows favorites to be connected with a single click (optionally automatically disconnecting any currently connected nodes first).
Allows the Favorites Table to be sorted by Node#, Name, Description, Location, etc.
Favorites can be added/deleted simply by entering the node# and clicking a button.
These features finally give AllStar nodes similar memory management and scan capabilities that analog radios have had for decades. AllScan is mobile-friendly and optimized for ease of use on both small and large screens. AllScan follows the latest web development standards, with PHP, JavaScript, HTML, and CSS cleanly partitioned, runs on both ASL and HamVOIP, and is very easy to install, configure, and update.
[ Hits: 20 | Votes: 1 | Rating: 8 ]
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