5 o radio

1408 links - and 2 categories

Multiband delta loop by DL2HCB ^pop - A 10-20 meters coverage delta loop antenna by DL2HCB
[ Hits: 81648 | Votes: 42 | Rating: 4.79 ]

50MHz J-Pole Antenna ^pop - Need a general purpose antenna on the magic band? The J-Pole is an easy-to-build and inexpensive device that provides an omni-directional vertically polarised antenna without the need for a ground plane. In technical terms, it is an end fed vertical 1/2 wave which is fed via a 1/4 wave matching stub.
[ Hits: 33823 | Votes: 18 | Rating: 7.05 ]

80 Meters EH Antenna plan ^pop - Building this antenna is very easy and inexpensive, 6 Foot EH Antenna
[ Hits: 42173 | Votes: 58 | Rating: 6.35 ]
My 80 Meter Magnetic Loop ^pop - A custom made 80 meter loop antenna. Reports on usage and tips to build the support.
[ Hits: 26534 | Votes: 24 | Rating: 6.74 ]

EH Antenna calculator - Calculate eh antenna components dimension with this online form
[ Hits: 20625 | Votes: 79 | Rating: 5.43 ]

G5RV All-Band HF Antenna ^pop - About G5RV antennas, with radiation pattern produced with eznec
[ Hits: 29623 | Votes: 13 | Rating: 4.54 ]
The G5 RV Antenna - Theory and operantions, G5RV construction tips by Keith, KE2DI
[ Hits: 5196 | Votes: 8 | Rating: 6.88 ]
The G5RV patterns - G5RV detailed antenna patterns and 3D plots setting it up as inverted V with a different angle, compared to horizontal way.
[ Hits: 4928 | Votes: 1 | Rating: 5 ]
G5RV tips - How to build a G5RV in italian
[ Hits: 3319 | Votes: 0 | Rating: 0 ]

J-Pole theory ^pop - The J-Pole antenna is an omnidirectional antenna that can be used for base, mobile and field day stations. It does not need a ground plane, radials or a complicated matching system. The J-Pole can be cheaply, simply and quickly constructed using a variety of techniques, some of which are discussed in this article.
[ Hits: 30319 | Votes: 26 | Rating: 6.87 ]
A J-Pole for 2-meters and 70-cm ^pop - An Easy Dual-Band VHF/UHF vertical Antenna made with a TV twin lead and coax cable
[ Hits: 103694 | Votes: 135 | Rating: 5.97 ]

EA5XQ's Projects: Magnetic Loop - Due to my job I have top travel a lot around the world, in order to find a way of making radio I decided to build a Magnetic Loop after some comments of other colleagues for working between 20 and 80 meters mainly.
[ Hits: 1852 | Votes: 0 | Rating: 0 ]

W5YD Ham radio club - Mississippi state university Ham radio club
[ Hits: 684 | Votes: 2 | Rating: 3.5 ]

W5AC - The Texas A&M University - W5AC is the Texas A&M University Amateur or "Ham" Radio Club. This club, founded in 1912, is one of the oldest university radio clubs in existence.
[ Hits: 1081 | Votes: 3 | Rating: 9 ]

W6YX - Stanford Amateur Radio Club - The Stanford Amateur Radio Club (W6YX) consists of about 50 students, staff, faculty, alumni, and community members.
[ Hits: 563 | Votes: 1 | Rating: 10 ]

PC to RTX interface - Schematics for IC-706, IC-718, IC-756PRO, TS-570, TS-870, and simple universal S.B. interface All three interfaces presented on this page employ galvanic isolation of the transceiver from PC computer. Audio paths are separated by transformers, optocouplers serve to separate the digital paths (PTT and RTTY keying).
[ Hits: 3782 | Votes: 2 | Rating: 7.5 ]

ERP Calculator Plus - ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss
[ Hits: 3002 | Votes: 9 | Rating: 5.11 ]

UDY-2 Voice Keyer - The UDY-2 Voice Keyer digital voice keyer amateur radio software utility integrates many popular voice keyer features in one convenient easy to use program. Whether you're working a contest as multi op, single op, running a net, or just plain rag chewing the UDY-2 Voice Keyer has something to make hamming more fun and convenient for you.
[ Hits: 7147 | Votes: 6 | Rating: 5.5 ]

50MHz frequency counter, V-meter - Circuit schematic PCB and photo documentation on building a 50 Mhz frequency counter
[ Hits: 6608 | Votes: 10 | Rating: 4.55 ]

Motorola Radius M110 modification - Turn a professional 2m VHF FM PMR transceiver Motorola Radius M110 into an amateur radio
[ Hits: 8988 | Votes: 48 | Rating: 4.5 ]