Search results
Query: radio
Links: 3950 | Categories: 420
This query is too generic. Please try adding an additional term to focus your research.
Categories
- Technical Reference > AI Ham Radio
- Radio Equipment > Amateur Radio Accessories
- Operating Modes > Amateur Radio Astronomy
- Manufacturers > Amateur Radio Maps
- Antique Radios > Antique Radio Reference
- Shopping and Services > Antique Radios
- Manufacturers > Transceivers > CB Radio
- Shopping and Services > CB Radio Stores
- Technical Reference > CB Radios
- Shortwave Radio > Broadcasters > Clandestine Radios
- Technical Reference > Receivers > Crystal radio
- Manufacturers > Digital and Packet Radio
- Ham Radio
- DX Resources > Ham Radio Awards
- Operating Modes > Ham Radio Balloons
- Technical Reference > Ham Radio Go Kits
- Shopping and Services > Ham Radio Insurance
- Ham Radio > Ham Radio News
- Shopping and Services > Ham Radio Stores
- Technical Reference > HF Radios
- CB Radio > Clubs > India Radio
- Internet and Radio
- Shopping and Services > Marine Radio
- Operating Modes > NPR New Packet Radio
- Shortwave Radio > Broadcasters > Offshore Radios
- Operating Modes > Packet Radio
- Technical Reference > Programming Radio
- Software > Radio Control
- Manufacturers > Radio Direction Finding
- Radio Equipment
-
A simple homebrew outdoor antenna to 2.4 GHz band. -
Ever wondered what goes on behind the scenes of the Chicago Police Department? Listen to Chicago police live audio feed from different district zones. Broadcastify offers a free stream of live Chicago PD radio transmissions! Stay informed about real-time incidents and hear police communication firsthand. This official feed allows you to experience the fast-paced world of Chicago law enforcement, directly from your browser. Be aware that some broadcasts may be delayed or encrypted for privacy reasons. -
HamScope is a freeware windows multi-mode communications package for amateur radio that supports: PSK31 BPSK and QPSK RTTY ASCII MFSK16 PACKET CW. Support radio control interface for several ICOM, TenTec, Kenwood, and Yaesu transceivers. Compatible with DXbase LOGic 7 RYLogit TRX-Manager YPLOG. By KD5HIO Glen -
The website provides live audio feeds of police scanners in the state of New York, allowing users to listen to police, fire, and emergency radio communications online. The content includes feeds from specific counties, metro areas, and the entire state. -
DX Summit Web Cluster, built up and operated by the members of OH9W OH2AQ Radio Club. -
Use real audio streams to listen to Hf and VHF stations around the world via remote controlled receivers connected to the web. -
MixW V3 is a software program for amateur radio operators that supports PSK31, RTTY, SSTV, MFSK, Olivia, Hellschreiber, and other modes. It provides features such as logging, DXCluster, telnet access, log backup, rotor, and CAT control. The page offers downloads for Olivia support DLL, Q15X25 support DLL, contest DLLs and macros, serial port emulation drivers, virtual network adapter drivers, Ax25Inet program, and help files. It also includes important notes for Olivia mode operation, such as sound card sample rate calibration and signal placement guidelines. -
-
An Easy Dual-Band VHF/UHF vertical Antenna made with a TV twin lead and coax cable -
Able to cover all frequencies between 3.5 and about 10 MHz, the loop described here is directional, does not require a radial system, and stands just 1.8 metres tall. The antenna can be put together in a short time and is cheap by Peter Parker VK3YE ex VK1PK -
-
The antenna is a 10 - 160 meter horizontal loop fed with 450 ohm ladder line all the way into the ham shack to an Palstar AT1500BAL balanced line antenna tuner -
140 feet of insulated wire, the first half of which (70 feet) is space wound on an insulated tube. -
I built a homebrew 75 meter Double Extended Zepp Antenna, And I needed a 4:1 Balun So I decided to Homebrew the Balun also. Here is how I did it! -
A 10-20 meters coverage delta loop antenna. After relocating, DL2HCB designed a multiband loop antenna to cover 10-20m with an open-wire feed for impedance matching and compact installation. Inspired by the mini-X-Q design, a modified 10m delta-loop was built, enhanced with a 1/4 wave shorted stub for 28 MHz using 450-ohm ladder line. The antenna delivers east-west broadside radiation and performs as a closed loop on other bands. Operational tests yielded strong European signals and successful DX contacts, including a 20m QRP QSO with FY/DJ0PJ. -
Antenna design program for Quads, Yagis, Inverted Vees, J-poles, Trap Dipoles and more for MS DOS. -
Home made vertical antenna for 80 40 15 10 meters ARRL PDF file taken from QST June 1978 -
-
Drake R8 Communications Receiver Reston Virginia, USA. Allow remote control of a DRAKE receiver with a nice interface that permi you to rotate the main tunin knob, set mode and change some key settings. -
KQ6RH HF quick vertical antenna with plan for several bands from 10 to 75 meters -
Vertical antenna for 40 meters band -
Schematics plans by K9GDT and all infos to build a 600 Watt HF Amplifier. The amplifier uses four Motorola MRF150 50 volt TMOS power FETs configured in push-pull/parallel and biased for class AB linear operation. -
The Super Loop Antenna page, designed by Jim W4FTU, provides detailed information on the RadioWorks \'Superloop III\' antenna as an alternative for operators with limited space. The page discusses the physical variations of the antenna, including dimensions and materials used, as well as its electrical characteristics such as the 30\' ladder line. The content is useful for amateur radio operators looking for antenna options for the 80 and 40 meter bands, especially those with small lots or zoning restrictions. The page is well-organized and informative, making it a valuable resource for antenna enthusiasts. -
The cubic quad is a very popular way to get reasonably high gain and excellent front to back ratios as well as low angles of radiation for without going to extreme heights. Includes design for 2 6 10 12 15 meter bands -
An online Ten Tec Pegasus with a schedule of frequencys monitored, by Bob, K5AHT, Bill, K5WGA and Pete, AE5PL. -
Microphone wiring can be a pain if your not sure how to work out which wire goes where -
Build this home made yagi antenna for your 2.4ghz wireless ethernet. -
The webpage allows users to listen to live police scanner frequencies online, specifically focusing on NYPD and FDNY activities in Staten Island. Users can access real audio streaming of police and fire scanner communications. -
-
Some mic wiring diagrams for Ranger, Realistic Alan, Cobra, Ge, Uniden, Yaesu, kenwood, Icom radios. Diagrams for the microphone connections on many of the common CB radios, as well as some popular Amateur radio transceivers. -
Portable wire antenna for 40 and 80 meter made with a RF Chocke. Can be adapted to work on 160 meters by adding additional 6.9 meters wire at its end. -
-
Author evaluated a custom-built passive AM loop antenna, achieving notable DX reception including KLBJ Austin (230 miles) and WWL New Orleans (700 miles). The antenna operates solely on resonant inductive coupling, enhancing weak signal reception without external amplification. This project illustrates how fundamental RF design—calculating inductance, capacitance, and Q factor—can significantly boost performance of consumer-grade radios. Detailed construction techniques, theoretical background, and optimization strategies for effective loop antenna design are presented for amateur and experimental use. -
An effective 10-20m DX antenna for deed restricted lots. The article by K7ZB introduces a simple 10-20m DX antenna suitable for deed-restricted lots. The antenna, a 15' vertical design, facilitated contacts with over 200 countries worldwide. Its design employs a telescopic aluminum tube and radial wires for multi-band operation, requiring an external antenna tuner for optimal performance. The mounting scheme and construction details ensure effectiveness and ease of use. -
Build Your Own Bazooka Dipole: A VHF/UHF vertical dipole made from coax -
Circuit diagrams, CB and HAM mods, alignments, data sheets and pinouts, a massive site with over 600 pages of free info -
A multiband 80-40-20-15 meters dipole wire antenna that can be extended to cover 160 meters too. -
Free downloadable band plans layouts ready to print in pdf format by C.Gustave Sandberg W1CGS, band plans are updated to 2007. -
May be of interest to anyone wishing to get on 80M (3.5MHz) that have limited space available. -
Complete guide to build Jpole antennas with online dimensions calculator. -
Free CAT control software for Yaesu FT-100, FT-100D, FT-817, FT-817ND, FT-847, FT-857, FT-857D, FT-897, FT-897D, FT-920, FT-1000MP Mark V, VR-5000 and FRG-100 transceivers. Version 2.1 for Windows. Ths Software no more supported or developed. -
The page provides a project for an indoor wire antenna for the 7 MHz band, based on a design by F6CYV. It aims to help amateur radio operators lacking space to set up an antenna for 40 meters. The author shares their experience using the antenna inside an apartment, noting good reception of European signals and contacts with over 150 countries. The project details the materials and dimensions needed for the antenna, along with tips for optimal performance. -
-
Low noise, receive only coax loop antennas for 160 - 10 meters HF bands -
From WH2T Dr Ace's Double Bazooka Coaxial Dipole -
Miami live police scanner feed provided via youtube. Miami PD Live Radio - Police Scanner online -
Henry Radio amplifiers for HF & VHF UHF Amateur and-or Commercial-Industrial use -
-
PDF article about a coaxial 1:1 balun, original concept by I4BBE using a quarter-wavelength and the three-quarter-wave adapting sections with the 50-Ohm coaxial cable by I0QM -
