ap communications
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Antennas : Magnetic Loop- Thinking about Ideal Loops
- Loop antennae have been used from ELF to UHF since the beginning of radiocommunications. At low frequencies, the main problem for loop antennae is to have enough sensitivity; the antenna being very small respect to the wavelength the collected energy is also small. To increase the output level the loop may be made resonant, so loosing it%u2019s intrinsic aperiodic characteristics.
[ Hits: 2270 | Votes: 6 | Rating: 7.33 ]
- N. American Data Communications Museum
- Telephony technology from telegraph to digital transmission
[ Hits: 1056 | Votes: 0 | Rating: 0 ]
- Trivalantene
- Professional antennas in MF, VHF, UHF and SHF frequency range for military applications, civil-professional market, mobile communications, radioamateurs and antennas for special applications - EMC, radiomonitoring, etc.
[ Hits: 4766 | Votes: 1 | Rating: 10 ]
- Antenna Products
- Antennas cover the RF spectrum from kilohertz to gigahertz and support countless mission critical military, air-sea navigation, ILS and voice-data communications applications.
[ Hits: 8634 | Votes: 4 | Rating: 6 ]
- EmComm-Products LLC Homepage
- EmComm-Products LLC manufacturs emergency communications products for Amateur Radio, MARS, CAP, military and government customers.
[ Hits: 2130 | Votes: 5 | Rating: 8.4 ]
- Times Microwave Systems
- Manufacture LMR Flexible low loss coax cable, connectors, and cable assemblies for Wireless Communications applications.
[ Hits: 1232 | Votes: 1 | Rating: 6 ]
- Broadcast microwave services
- Designs and manufactures a comprehensive line of microwave communications equipment for television broadcast, video, telemetry, and electronic surveillance applications.
[ Hits: 2691 | Votes: 3 | Rating: 6 ]
- WiNRADiO Communications
- Pioneering the integration of radio and personal computing, WiNRADiO Communications are the manufacturers of award-winning range of computer-controlled WiNRADiO receivers for professional and amateur applications.
[ Hits: 14768 | Votes: 25 | Rating: 6.4 ]
- Morse Abbreviations
- List of commnly used abbreviations in radio telegraphy communications
[ Hits: 2829 | Votes: 11 | Rating: 6.73 ]
- T.A.P.R.
- TAPR, an international organization dedicated to amateur digital communications, is pleased to present this collection of information about TAPR, via the World Wide Web.
[ Hits: 955 | Votes: 1 | Rating: 10 ]
- VOACAP Quick Guide
- A Quick Guide to using VOACAP - Point-to-Point High-Frequency Ionospheric Communications Analysis and Prediction Program
[ Hits: 670 | Votes: 7 | Rating: 4.71 ]
- HF - VHF Radiowave Propagation Center
- High frequecy and VHF radio propagation data, solar and geomagnetic real-time and historic data, as well as forecasts. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns of CQ, CQ VHF, Popular Communications, and Monitoring Times magazines. Solar Weather, Geomagnetic, Aurora, Ionospheric reports via eAlerts and webpage. WAP phone access. Live and educational resources, and more.
[ Hits: 1434 | Votes: 2 | Rating: 7.5 ]
- The Radio Reference
- RadioReference.com, scanner frequency and radio communications reference source, with complete conventional frequency assignments, trunked radio system information, frequencies, and talkgroups, FCC License assignments and maps, 10-Code Lists, agency maps, files, downloads, links, and detailed agency information for most public safety, military, and local government activities.
[ Hits: 6063 | Votes: 30 | Rating: 6.89 ]
- AP Communications
- AP Communications CB and Amatuer Electronics Sales
[ Hits: 1579 | Votes: 1 | Rating: 1 ]
- DXSpotter
- DXSpotter is a commercial Win32 HAM radio application for working with DX Clusters by using TCP/IP protocol for communications. It is adapted to satisfy most DXer's needs.
DXSpotter includes 2 programs in one: DXSpotter for connections via telnet protocol to more than 200 DX Clusters, and DXSpotter-Summit for connections to OH2AQ's WEB cluster DXSummit page with automatic page refresh Price USD 25
[ Hits: 4450 | Votes: 17 | Rating: 6.59 ]
- KA Win
- KaWin is a Windows software that supports multiple Kantronics TNCs and multiple radio transceivers with an intuitive, graphical interface, setting a new standard of performance for digital radio communications. Software is not supported anymore.
[ Hits: 5324 | Votes: 8 | Rating: 3.75 ]
- Kangaroo Tabor Software
- HF Communications Analysis and Prediction Tools for Amateur Radio and communications professionals. Featuring: WinCAP Wizard, Beacon-Time Wizard, GeoAlert-Extreme Wizard, ID Wizard, KTS Clock Screen Saver, NERDAlert 2000
[ Hits: 3337 | Votes: 23 | Rating: 8.09 ]
- VOACAP
- Point to Point hf ionospheric communications analysis and prediction program
[ Hits: 3952 | Votes: 12 | Rating: 7.18 ]
- Coaxial Cable & Power Handling
- This calculator can be used to estimate the attenuation (dB loss), power handling capability, and transmission efficiency for some of the more popular Wireless Communications and MIL Spec cables at the frequency of interest
[ Hits: 1181 | Votes: 8 | Rating: 8.17 ]
- New Developments with PLC in Japan
- The Japan Amateur Radio League (JARL) is cautiously watching new developments concerning the commercialization of Power Line Communications (PLC), while continuing to carry out joint experiments with a high speed power line communication promoters' alliance to reduce potential interference to radio communications.
[ Hits: 370 | Votes: 1 | Rating: 1 ]
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