Antennas : 2M
- A turnstile antenna for 2-meter ARDF
- Antenna design for use with hidden transmitters on international-rules ARDF events
[ Hits: 17481 | Votes: 22 | Rating: 7.52 ]
- A Quadruple Helix for AO-40
- A homebrew project of a quadruple helix antenna system based on G3RUH 16 turn helix antenna for 2.4 GHz.
[ Hits: 8022 | Votes: 8 | Rating: 6.25 ]
- A 16 Turn S-Band Helix
- This design represents the smallest practical antenna for Oscar-13 mode-S. Perfect beacon reception at all times is possible, and acceptable SSB even at 43,000 km range.
[ Hits: 8745 | Votes: 4 | Rating: 7.5 ]
- Multi Turn Magnetic Loop for 40/60/80
- The 40/60/80 is a portable loop that covers 80 meters with a high degree of compromise
[ Hits: 3394 | Votes: 6 | Rating: 5 ]
- An automatically tuned 7-30MHz mobile antenna
- This is a base-loaded vertical antenna that mounts on the car's roof. The loading coil is designed as a variable inductor, with a three-legged chariot that travels up and down inside the coil, with grooved brass wheels running on the coil turns, and driven by a slotted rotor tube.
[ Hits: 3748 | Votes: 2 | Rating: 1 ]
- Receiving Loop Theory - N4YWK
- Sensitivity of multi turn receiving loops
William E. Payne, N4YWK
[ Hits: 641 | Votes: 1 | Rating: 1 ]
- 802.11b Homebrew WiFi Antenna Shootout
- Guide to homebrew your wifi antenna, using a tin can, in this cases using a pringles can. This antennas are also known as cantenna and let you spread your wifi signal.
[ Hits: 71108 | Votes: 62 | Rating: 6.59 ]
- How to build a tin can waveguide antenna
- Looking for an inexpensive way to increase the range of your wireless network? A tin can waveguide antenna, or Cantenna, may be just the ticket. This design can be built for under $5 U.S. and reuses a food, juice, or other tin can.
[ Hits: 37350 | Votes: 44 | Rating: 7.42 ]
- Sunstone Circuits
- Sunstone Circuits is your easiest source for quoting and ordering printed circuit boards online. We are three respected brands in one: PCBexpress quickturn boards, PCBpro.com full-featured and design-checked boards, and PCB123 design software.
[ Hits: 566 | Votes: 3 | Rating: 8 ]
- Near-Real-Time F2-Layer Critical Frequency Map
- This map can be used to determine the frequencies that will always be returned to the Earth. Transmitted frequencies higher than the indicated contours (which are given in MHz) may penetrate the ionosphere, resulting in lost power to space.
The map shows the radio auroral zones as green bands near the northern and southern poles.
[ Hits: 5000 | Votes: 22 | Rating: 5.1 ]
- Kenwood TS-950S RF gain mod
- The Kenwood TS-950S and TS-950SD HF transceivers are fine radios. However, many, if not all,
of them were produced with a design flaw which allows the RG GAIN control to cease function in
the presence of a strong signal IF the AGC has been turned OFF
[ Hits: 1506 | Votes: 1 | Rating: 1 ]
- The KA7OEI FT-817 pages
- A web page dedicated to the Yaesu FT-817 with lots of links and usefull resources
[ Hits: 461 | Votes: 0 | Rating: 0 ]
- Thomas distributing
- Discount CB & Accessory Distributor. Top Brands such as Cobra, Uniden, Midland, Galaxy, Solarcon, Bandit, Pyramid, Wilson, Superstar, Palomar, Nortstar, President, Dosy, Paradynamics, K40, Nemarc, Road Noise, Astatic, Turner, Telex. Best Prices and exceptional service. 21 Years serving the Communication Trade.
[ Hits: 22563 | Votes: 22 | Rating: 5.82 ]
- 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: 9392 | Votes: 176 | Rating: 3.71 ]
- AEA - Wireless software
- AEA Wireless Director Software Series turns PC's (running Windows 95/98/2000/ME or NT) into powerful tools that expand the use and power of SWR, Return Loss and Complex Impedance Analyzers.
[ Hits: 2568 | Votes: 6 | Rating: 5 ]
- IC746 control
- IC-746 control Itís as simple as point and click. Left click will turn counter clockwise, and right click will turn clockwise.
[ Hits: 1642 | Votes: 1 | Rating: 10 ]
- Variable bandwidth cw filter
- As the sunspots return and DX propagation conditions to improve, the age old problem with QRM begins to show up on the amateur bands. Thif filter help you on improving reception
[ Hits: 1047 | Votes: 3 | Rating: 4.33 ]
- 11 Most Popular MIC Wiring Diagrams
- 11 most popular MIC wiring diagrams including AZDEN Alinco Icom Kenwood Yaesu Astatic Cobra Sadelta Turner microphens diagrams and pin-end views
[ Hits: 104377 | Votes: 179 | Rating: 5.5 ]
- Raspberry Pi based APRS Tracker Digipeater and iGate
- A project to turn a Raspberry Pi into a very versatile tracker, digipeater and an iGate
[ Hits: 67 | Votes: 0 | Rating: 0 ]
- Motorola Radius M110 modification
- Turn a professional 2m VHF FM PMR transceiver Motorola Radius M110 into an amateur radio
[ Hits: 8776 | Votes: 48 | Rating: 4.5 ]