radio tuning

radio tuning

Antennas : Array

• Hex Array - 80/40 Meter Vertical - This page describes a homebrew 80/40 meter trap vertical antenna. Includes an interesting antenna raising system that allow easy setup and tuning.
  [ Hits: 7624 | Votes: 2 | Rating: 5 ]

• 1:4 Current Balun - This project is intended to aid in tuning a balanced antenna or feedline that has a high impedance 100-600 ohms
  [ Hits: 3414 | Votes: 5 | Rating: 8 ]

• How to Tune Dipole Antennas - This is a standard calculation method that can help you while tuning dipole antennas, by adjusting wire lengths. This method can be used also when you need to add lenght to your wires, and can be additionally used to quarter waves vertical antennas
  [ Hits: 336 | Votes: 5 | Rating: 8.6 ]

• GW4ALG - 136 kHz Pages - GW4ALG Loop Antenna Tuning Unit
  [ Hits: 513 | Votes: 2 | Rating: 4.5 ]

• Home made High Power Magnetic Loop Antennas - Magnetic Loop Antennas for The Radio Operator with Limited Space, a two part series of articles on how to construct a magnetic loop antenna, including directions on selecting high voltage tuning capacitor
  [ Hits: 896 | Votes: 0 | Rating: 0 ]
• Mastering Magnetic Loop Antenna Control - Unveil the secrets of efficient Magnetic Loop Antenna control systems, eliminating the hassle of frequent retuning. With real-time tracking and compatibility with various transceivers, including popular models from Elecraft, ICOM, Kenwood, and Yaesu, this controller ensures seamless frequency adjustment. Explore its high-resolution stepper motor and versatile communication capabilities, revolutionizing amateur radio operation.
  [ Hits: 54 | Votes: 0 | Rating: 0 ]
• Automatic Magnetic Antenna Tuner - A Magnetic Loop Antenna is a resonant circuit employing a large inductor and adjustable capacitor. Efficiency depends on the inductor's size relative to wavelength. A Magnetic Loop Controller adjusts antenna tuning in real-time, syncing with Transceiver VFO movements. It communicates with various radios, enabling seamless tuning. Stepper motor resolution ensures accurate capacitor positioning, crucial for antenna performance. The Controller's firmware offers diverse functionality, enhancing user experience and antenna efficiency.
  [ Hits: 59 | Votes: 0 | Rating: 0 ]

• Moxon Mania - Building the Ultimate 4-Band Moxon Antenna - The article details the design and construction of a four-band Moxon beam by a radio amateur. The beam, mounted atop a rooftop tower, aimed for gain over a dipole on 20 meters, cost under $500, and included additional bands. The design features fiberglass spreaders, four bands (20/15/10/6 meters), and a single feedpoint. The construction involved computer modeling, NEC source code, and specific dimensions. The article outlines the assembly, materials, and tuning process, including in-situ adjustments for optimal performance. Despite initial challenges, the beam improved signal strength and facilitated contacts on multiple bands, marking it as the best HF antenna the author has owned.
  [ Hits: 96 | Votes: 0 | Rating: 0 ]

• M1IOS - Wonder Whip antenna and tuner - M1IOS Wonder Whip antenna - The M1IOS Wonder Whip A 10 dollars QRP Portable Multiband Antenna for HF, VHF and UHF A variation on the Miracle Whip and Wander Wand. This antenna tuning unit will get your SWR really low on telescopic whips, mobile 3/8th antenna and long wires. A remarkable little tuner that really works!
  [ Hits: 14509 | Votes: 24 | Rating: 9.04 ]

• How to build a tuned loop antenna - How can you vastly improve your Medium Wave reception? its quite simple really, all you need is 120 foot of wire, a few lengths of timber and an old tuning capacitor with which you can build the answer to every DX'ers prayers, a tuned loop antenna.
  [ Hits: 24075 | Votes: 21 | Rating: 8.1 ]

• Butternut HF9V Project - WB3AAL setup project of the popular HF9V vertical antenna with report on tuning it on ham radio HF bands
  [ Hits: 804 | Votes: 2 | Rating: 5.5 ]

• K6XX CW Indicator Kit - The purpose of this circuit is to light a LED in your radio when you tune to within +- 20hz of a cw signal. This makes for easy tuning of a cw signal by eye rather than by ear
  [ Hits: 1256 | Votes: 0 | Rating: 0 ]

• miniVNA PRO Installation Notes - Notes on installing the miniVNA PRO software, making a calibration standard, a trap tuning loop.
  [ Hits: 170 | Votes: 0 | Rating: 0 ]

• 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 ]

• Sparkys cb shack - CB and 10 Meter Amateur Radio Sales and Service. Free Custom Tuning. Free Shipping. Home of the Sparktune Modulator. Give your radio that Blazing Modulation We stock Galaxy, Cobra, magnum, Connex, General,Uniden, Workman, Dosy, Hustler, Turner
  [ Hits: 9708 | Votes: 177 | Rating: 3.74 ]

• International Radio Club of America - Established in 1964, IRCA is a dedicated club focused on the pastime of tuning into distant stations on the AM broadcast band (510-1720 kHz). The club's official publication, DX Monitor, is released 35 times annually. It is published weekly from October to March, twice in September and April, and monthly from May to August. DX Monitor includes members' loggings, articles covering radio stations, receiver reviews, technical pieces, DX tips, and other content of relevance to Broadcast Band DX enthusiasts. Additionally, IRCA is affiliated with ANARC.
  [ Hits: 29 | Votes: 0 | Rating: 0 ]

• Studio1 - Studio 1 is a Paid windows SDR software defined radio application, supports Tmate and Tmate2 USB control consoles, for better tuning and control.
  [ Hits: 641 | Votes: 5 | Rating: 3 ]

• The CW Flea: Modern Morse Transmitter with Arduino - Reviving the spirit of early ham radio experimentation, the CW Flea is a contemporary Morse code transmitter. Utilizing an Arduino Nano, Si5351 clock generator, and innovative design, this open-source project offers simplicity, flexibility, and easy tuning for aspiring radio enthusiasts.
  [ Hits: 90 | Votes: 2 | Rating: 3.5 ]

• CAT Interface - CAT (Computer Aided Tuning) connects computers with ham radio. Yaesu FT-890 intercace and ICOM IC-Q7 schematics by DK7IN
  [ Hits: 881 | Votes: 0 | Rating: 0 ]

• Programming a Baofeng UV-5R for PMR446 - Nice feature of the Baofeng UV5R family is that they support 6.25kHz tuning steps. That fact makes it possible to dial in the radio to use the exact PMR446 channel frequencies rather than a nearest fit which is the case in many other transceivers.
  [ Hits: 697 | Votes: 8 | Rating: 3.88 ]