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Top Amateur Radio Websites – Issue 2221
A Versatile SOTA Antenna Tuner KX0R This is a detailed, technical piece, intended mostly for makers and more creative activators, who enjoy building and using their own tools on the summits. A...
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Top Amateur Radio Websites – Issue 2222
VHF UHF BiQuad KE4UYP This is a vertically polarized Broadside and Collinear Array each Loop is a vertically polarized Broadside Array both the right and the left side of the Loop is a bent 1/2 wave...
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Top Amateur Radio Websites – Issue 2223
Interactive Worldwide Map of Amateur Radio and more IU1FIG The first interactive map of amateur radio repeaters and more updated in REAL TIME. The Vertical Buddi Beam for 20m KE4UYP The Vertical Buddi...
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Top Amateur Radio Websites – Issue 2224
Spy Numbers Recordings shortwavearchive From the sortwave radio audio archive, a collection of recordings of several spy numbers stations, russian, spanish, cuban audio recordings SWR-Display DL2KHP...
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Top Amateur Radio Websites – Issue 2225
20 / 40 Meter Short Coil Loaded Dipole Antenna buildthings Experimenting a 20 40 meter short coil loaded dipole antenna with the goal to keep the total length under 40 feet so that the dipole can be...
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Top Amateur Radio Websites – Issue 2226
miniVNA PRO Installation Notes buildthings Notes on installing the miniVNA PRO software, making a calibration standard, a trap tuning loop. Corned Fed Delta Loop LA8OKA Author found a ratio between...
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Top Amateur Radio Websites – Issue 2227
DXCenter DX Cluster SV2AGW Online world map with live updates from the DX Cluster network, displaying new spots on the maps as they appear. Filtering options are available including bands, source...
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Top Amateur Radio Websites – Issue 2228
Coax Attenuation Chart w4rp Tables with attenuation in DB per 100 feet of several coaxial cables. 9:1 Unun Impedance Transformer VK1AD A 9:1 unbalanced to unbalanced (unun) impedance transformer based...
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Top Amateur Radio Websites – Issue 2229
Foldable Yagi Antenna pd0g A home made RDF 3 elements Yagi that can be used for fox hunting. The particularity of this antenna is that it can be folded, in order to save space while travelling. In...
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Top Amateur Radio Websites – Issue 2230
Controlled Antenna Switch NutsVolts A four position HF antenna switch with PC control Kenwood TS-990S Review PF9Z A syntethic review of the Kenwood TS 990S. The author was previosly a FTdx101d owner...
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Top Amateur Radio Websites – Issue 2231
40m center loaded vertical antenna VK1NAM A 5 metre center loaded vertical for 40m combined with a 4 wire ground plane. Coax Dipole for 2 meters band VK1NAM A homebrew 2m 144.2 MHz vertical 1/2 wave...
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Top Amateur Radio Websites – Issue 2232
ICOM IC 7300 mods brucerichards Modifications for the ICOM IC 7300 transceiver, MARS mod, antenna tuner coverage expansion, Mic Modification A simble Attic Antenna for HF bands Eugene Viktorovich This...
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Top Amateur Radio Websites – Issue 2233
A cheap VHF UHF Yagi US7IGN Elements are aluminum TIG soldering rods 4.0mm of diameter, almost 1m long, these objects are light, thin and flexible based on the RZ9CJ Design Multi-Band 4 Foot Magnetic...
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Top Amateur Radio Websites – Issue 2234
Moebius style 80/40 m band antenna YO4DFT A loop antenna for 80 and 40 meters band, the main loop is based by a crossed line using aluminium strip lines. The main loop diameter is 150 cm. Loop...
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Top Amateur Radio Websites – Issue 2235
The Pop-Up Vertical 2.0 WB3GCK Basically, this antenna is a 23-foot wire fed through a 4:1 un-un transformer. This antenna can be easily used in portable operation, for operating all bands from 40-10...
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Top Amateur Radio Websites – Issue 2236
Amateur Radio License Map HamInfo Use this map to find amateur radio license holders in the USA. 80m Vertical dj0ip This is a FULL SIZE quarter-wavelength vertical made on a 18m Spiderbeam fiberglass...
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Top Amateur Radio Websites – Issue 2237
Short Antenna for 40-30-20 Meters Band dj0ip This page describes an entirely simple, One-Knob matchbox that will match this antenna efficiently on 40, 30 and 20m, using a simple circuit that can be...
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Top Amateur Radio Websites – Issue 2238
The UnTenna KC8AON Multiband random wire unun (unbalanced to unbalanced) for use with rigs with builtin autotuners. Wire Beam Antenna Types dj0ip In this article the author feature the various types...
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Top Amateur Radio Websites – Issue 2239
Slim Jim vs. Traditional J-pole Antenna hamradiome A comparison among a traditional J-Pole Antenna and 2BCX Slim Jim Antenna 40-80 Coax Trap Dipole I6IBE Full article on how to build a home-made wire...
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Top Amateur Radio Websites – Issue 2240
80m-40m Dual-Band Vertical dj0ip A dual band 40-80 vertical antenna on an 18m Spiderbeam Fiberglass Spiderpole, with monoband performance KC2G HF MUF Propagation maps KC2G Ionospheric propagation maps...
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