qrp antenna

106 links

Frame Antenna for 80m - A frame antenna for the 80 meters band, built to be folded and to be easy to be mounted and dismounted. This antenna is suitable for indoor and QRP use, bandwidth is just 10kHz and should be observed a proper distance while transmitting due to high voltage.
[ Hits: 728 | Votes: 5 | Rating: 8.8 ]
80m Shortened Dipole Antenna - This antenna just requires about 24m of free space instead of 41m that a normal half wave 80m antenna needs to hang up. The so called loaded dipole uses a coil in every dipole arm to electrically lengthen the mechanical too short dipole arms. Every coil has an inductivity of 120 microHenry.
[ Hits: 154 | Votes: 0 | Rating: 0 ]

End Fed Half-Wave Antennas - An interesting article on end fed half-wave wire antennas with a couple of original experiments. Author illustrate the role of the QRP matchbox, and a 40/20 meter antenna with a center stub making it a large bandwidth antenna for 40 and 20. Includes also an 80/40 end fed with the typical coil to make it available on 80 merts band.
[ Hits: 288 | Votes: 2 | Rating: 10 ]
QRP End-Fed for 40m 20m 10m - This antenna build was strongly inspired by the well known PAR end fed antenna. The matcher box uses a T82-43 Fair-Rite core.
[ Hits: 170 | Votes: 3 | Rating: 9.67 ]
End fed half wave antenna 40/30/20m - For my SOTA activities, i recently bought a QRP transceiver QRP SW-3B, which is a three-band QRP CW only for 40/30/20 m. So, i needed an antenna that would allow to use these 3 bands in SOTA portable activity. Already having some experience with the EFHW antenna, i decided to build one for 40/30/20m.
[ Hits: 168 | Votes: 0 | Rating: 0 ]

Indoor QRP HF Loop Antenna - A home made magnetic loop for HF Bands. This small and compact loop is designed to support small power transmissions on HF bands, from 7 MHz to 21 MHz
[ Hits: 323 | Votes: 1 | Rating: 10 ]
QRP HF Loop Antenna - This is an uncommon loop antenna, hombrewed without the small feeding loop. With small spare parts is possible to build a loop antenna tuner for portable usage tha can ben used with common HF QRP transceivers
[ Hits: 162 | Votes: 1 | Rating: 10 ]
K1FM Mini Magnetic Loop - Original HF magnetic loop antenna designed by the author to work in conjunction with QRP transceivers like the FT-817 in portable operations. In this configuration the loop can operate from 30 to 10 meters. Using a two spires radiator of the same diameter it also covers 40 meters.
[ Hits: 118 | Votes: 1 | Rating: 8 ]

QRP Link Dipole Antenna - Dipole antennas are some of the simplest antennas to build in addition to being very efficient and solid performers. I wanted to make a simple dipole antenna for QRP portable operation that could be used on multiple bands.
[ Hits: 283 | Votes: 2 | Rating: 7.5 ]
PAC-12 Antenna modification - A Multiband Slinky Coil for the PAC-12 portable Antenna, can be used also as a dual PAC-12 dipole by James Bennett
[ Hits: 267 | Votes: 2 | Rating: 10 ]
2m Lightweight Portable Dipole - Lightweight portable QRP 2m & 70cm half wave dipole for SOTA or an emergency antenna for the 2m and 70cm Go-box.
[ Hits: 176 | Votes: 1 | Rating: 9 ]
Portable VHF UHF Dipole Antenna - A SOTA Lightweight Portable 2m 70cm Dipole Antenna Lightweight portable QRP 2m and 70cm half wave dipole for SOTA or an emergency antenna for the 2m and 70cm Go-box.
[ Hits: 177 | Votes: 0 | Rating: 0 ]

A QRP Transmatch ATU - A home made Antenna Tuner made with a simple inductor and a few spare parts. Despite the title, the author succesfully tested this ATU with higher power inputs.
[ Hits: 204 | Votes: 0 | Rating: 0 ]
L-Match Tuner Build for QRP Operation - An L-Match tuner is a device that can add either inductance (L) or capacitance (C) to the antenna, bridging that gap between 5000 ohms and 50 ohms, thus matching it to the radio. The L-Match tuner is an extremely useful device that every QRP operator will want to have.
[ Hits: 186 | Votes: 0 | Rating: 0 ]
QRP Z Match Antenna Tuner Project - A Home made antenna tuner for QRP transceivers. This small tuner is the ideal for portable operations with random length wires or whenever you have not a resonant antenna.
[ Hits: 109 | Votes: 1 | Rating: 10 ]

OM0ET Antennas - Maker of small and compact multiband QRP UltraLight Magnetic Loop Antennas and UnUn transformer for end-fed multiband antennas
[ Hits: 312 | Votes: 7 | Rating: 7.57 ]

Breadboard Radio - Maker of QRP Kits, QRP CW receiver and transmitters, audio CW Filters, antenna tuners, dummy loads, and morse code practice oscillator
[ Hits: 1313 | Votes: 1 | Rating: 10 ]
Aerial 51 - Aerial 51 is an antenna manufacturer producing HF Wire antennas. Their antenna product catalog includes portable, OCF wire antennas for HF bands but also QRP transceivers, and accessories for portable operations.Based in Germany
[ Hits: 426 | Votes: 0 | Rating: 0 ]

Radio N9SKN /P QRP Field Operations - Personal web site by N9SKN about portable QRP operations with pictures of several portable setups and antenna solutions.
[ Hits: 145 | Votes: 0 | Rating: 0 ]

Midway Electronics - Midway Electronics supplies the area with electronic components, wire, cables, amateur radio transceivers, QRP kits, CB transceivers, GMRS radios, Shortwave radios, power supplies, antennas, coax, connector and ham radio accessories
[ Hits: 216 | Votes: 2 | Rating: 3 ]