Search results

Extend the range of wireless network or connect to other wireless networks in neighborhood with your own wifi antenna.

Recepteur decametrique 3 - 30 MHz Detection classique et SDR

FT-817 Radio Modifications, Improving the FT-817 Noise Blanker, increasing output power, using rechargeable cells, epanding frequency range

A chart presenting the results of impedance measurements made on a variety of common-mode choke implementations across the frequency range 1MHz to 30MHz by G3TXQ

This is a one for all antenna tuner with wide range tuning on all the HF bands. The tuner is based on a G3WQW design. DIY project by PD7MAA

T-Match Network Antenna Tuner for a wide range of complex antenna loads between 1.8 and 30Mhz at moderate power levels by VK6YSF

Japanese electronic parts online shop offer a wide range of products, from microchip pic to leds and batteries to any kind of connectors

Linear Amp UK manufacture a range of high quality linear amplifiers for amateur and commercial use. Production includes HF, VHF and UHF amplifiers.

With the view to establish a quick and easy multi-band antenna deployment for portable and camping operations a simple long wire antenna with an earth or earth plus counterpoise arrangement with a 9:1 voltage unun including a tuner or simply with a tuner is one possible solution. With the 9:1 voltage unun and wire lengths suggested in the below tables the antenna should present non extreme impedances for all HF amateur band frequencies. This page is far from complete and represents the ongoing investigation into this type of antenna. Experiments to date seem to have raised more questions than obvious answers.

Antennas for Broadcasters, PSI manufactures a complete range of slot antennas for UHF television broadcasting

How to operate Instant Tune and Instant Track or DOS Programs on a last generation computer in french and english by ON6WG F5VIF

An antenna for shortwave radio broadcasting consisting of rows and columns of dipoles, is a high gain directional antenna, designed for medium and long range communications.

Loop Antenna Basics and Regulatory Compliance for Short-Range Radio

Australia's largest range of Electronic Kits & Components In Stock for the Radio Experimenter, ATV, microwaves, HF Band pass filters

Microhams is a dynamic organization of hams in the Puget Sound area. The club includes a broad range of people from our local tech industry who participate in just about every aspect of our hobby.

This simple antenna modelling windows software by F5IMV wil calculate a dipole,extended double Zepp,G5RV, ZS6BKW and many other wire antennas by F5IMV

A consultant's site with a wide range of material relating to antennas for many applications.

The range and coverage of your VHF transceiver will be limited to your radio horizon. How to calculate the visual horizon and how to determine the Radio Horizon

Comparison of FT-1000D FT-736R FT-817 FT-847 FT-897 IC-765 Orion TS-2000 Spectral purity of a continous carrier, of a SSB and CW signals

Amateur Radio Club in Edinburgh. Founded in 1949 with twice monthly meetings and a range of activites including talks, DF hunts, vists and contesting.

This antenna can gets you on the air on 14MHz, and it has a useable frequency range. The VSWR is almost perfect at the centre-frequency abd the design uses no expensive components.

Domino is the name given by the developers to a family of IFK coded coherent phase single tone MFSK keyed modes, using sequential tone-pairs in two alternate fields arranged as orthogonal but interleaved tone sets.

ozQRP offer a range of kits to build a complete QRP SSB transceiver

Home page of PA3BTL with information on Linux, packet radio, sattellite keppler data links, Proxim RangeLAN2 2.4 GHz radio's, Lucent WaveLAN 2.4 GHz radio's and link to LXE homepage

High Speed Multimedia Radio Introduction by ARRL Working Group Chairman. Report of the High Speed Multimedia (HSMM) Working Group ARRL Board of Directors 2006 Annual Meeting January 22, 2004

This project is based around the recent HF1 QRP transceiver by Ashhar Farhan, VU2ESE. The transceiver is an interesting SSB design with wide tuning range from 0-30MHz and should cover several amateur bands. The schematic for the transceiver can be found on the Minima mail list in this post with a PDF attachment

This handy and cheap portable dipole can be folded and backpacked, carried in use, and adjusted to a very wide range of frequencies.

We have a wide range of power protectors and surge protection products available

Gao engineering offers a wide range of affordable, popular and reliable rfid products, dsp, arm and other microprocessor evm and development boards, ides, universal programmers, emulators, dsp learning systems, micro-network terminals, test and measurement products for engineers.

How to calculate range for a VHF antenna with a simple formula and how to increase VHF coverage.

Chart that present results of impedance measurements made on a variety of common-mode choke implementations across the frequency range 1MHz to 30MHz by G3TXQ

Handcrafted Accessories for the shack by W2ENY includes Full range headphones with a mic, computer interfaces, mic ptt adapters

Fountain Valley Amateur Communications Team Located in Orange County, Southern California

Latchways are the world leaders in fall protection and the manufacturers of the mansafe range of products for working at height.

Telegraphy collection, telegraph, sounder, relay by F8JZR in french

An interesting article on how build an optimal sounding communications loudspeaker capable to optimize sound reproduction at the frequency range from 150 Hz to 3 kHz.

Provide for the short wave listener, amateurs, local commercial community and business with a wide range of radio based services and products. Icom dealer

The author explores the VP2E antenna, introduced by Ed Durrant DD5LP, for Portable Operations on the Air (POTA). Detailing its unique design, successful trials, and an unexpected propagation twist, the VP2E proves a promising addition to the author's portable antenna arsenal.

Designer and manufacture of Airborne Antenna & Radomes covering a range of applications. Products include vhf antenna ,uhf antenna,navigation antenna,comm antenna,blade antenna,vor/ils antenna ,L band antenna, direction finding antenna,DF antenna,vor,ils, IFF antenna on aircraft,aircraft antenna for airborne application.

Wouxun KG-UV8D Standard Programming Software. Used to adjust or expand the frequency range to the full authorized range of the radio and not beyond. 134-174MHz 400-519MHz This software will Not add the 2.5kHz step.

This program locates the Sun and Moon in real time using a full set of ephemeris factors. Gives azimuth, elevation, right ascension, declination, and range to each.

This circuit is very simple and has a fantastic range of potential uses.

DragonOS is a linux distribution dedicate to Software Defined Radio. It leverages the portability, security, and power of Lubuntu Linux as a delivery package and operating environment for a pre-installed suite of the most powerful and accessible open source SDR software. DragonOS has verified support for a range of inexpensive and powerful SDR hardware, including RTL-SDR, HackRF One, LimeSDR, BladeRF, and many others.

Solar activity can aid or hamper HF propagation beyond line-of-sight range, WA1SVF and N6BV answers to questions about Sun influence on radio signals propagation

T2FD is a 600-900 ohms folded dipole, terminated with resistor. Feed impedance is coupled with 50/600 ohms voltage balun. It is a wide band antenna with rather low SWR over the full designed frequency range: antenna tuner is seldom needed.

QSL collection from F5RRS

Strictly Ham has a large retail presence in Australia and welcomes enquiries from New Zealand, the Pacific and Asia. Strictly Ham offers a comprehensive range of high quality Amateur, CB and Marine products at very competitive prices.

This project is a Software Defined Radio Receiver. It has a frequency range of 24MHz 1.2GHz. It can demodulate AM, FM, USB, LSB with selectable bandwidths of 600, 2400, 2800, 3200 and 6400Hz. Using a simple RTL-SDR Dongle and Raspberry Pi 3 computer using GNU RADIO