antenna 80 meter

222 links - and 2 categories

Broadband 80 meter dipole - The AB2RA bowtie 80 meter antenna includes also a 40 meter dipole
[ Hits: 864 | Votes: 0 | Rating: 0 ]
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: 727 | Votes: 5 | Rating: 8.8 ]
Shortened 80m Antenna - An antenna for 80 meters band for those who does not have enough space to setup a halwave wire dipole that is aprox 130ft or 40 meters. The antenna is an open-wire-fed shortened dipole
[ Hits: 421 | Votes: 1 | Rating: 1 ]
80 Meter Shortened Ground Plain Antenna - This antenna is a vertical loop antenna mounted on a 8 meters high grounded mast with an input impedance of 50 Ohms without a matching device
[ Hits: 445 | Votes: 1 | Rating: 5 ]
Top Loaded Vertical Antenna for 80 Meters Band - Top Loaded Vertical Antenna 3,5 MHz 80m and a 14 MHz Trap for the 20m band. The weight of this portable vertical antenna is less than 1 kg, including the ground network. The weight of the telescopic fiberglass fishing rod is another 1kg. The rod expands from 1.5 meters to 8 meters.
[ Hits: 268 | Votes: 0 | Rating: 0 ]

Building and Using an Experimental Beverage - An interesting article about planning and testing beverage antennas for 80 and 160 meters in a rural location
[ Hits: 788 | Votes: 3 | Rating: 5.33 ]

Multi-band End-Fed Antenna - An excellent guide to homebrewing multi band end-fed antennas. The article, embed several drawings including diagrams and detailed pictures, illustrating the basic funcionality of end-fed antennas. The author gives some basic hints on how to build a half size antenna for 80 40 to 10 meters and a 6 meter to 40 meter configuration. It is also well described how to build the impedance transformer and the loading coils for lower bands.
[ Hits: 1105 | Votes: 6 | Rating: 4.5 ]

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 ]
End Fed Antenna with a 1:64 Matching Network - In this experiment the autor is going to explore the use of a 1:64 matching network on the End Fed Long Wire Antenna. Experiment will consist in build a 80-40-20-15-10 meter End Fed Long Wire Antenna with a 1:64 matching network from the documentation available on the internet
[ Hits: 872 | Votes: 15 | Rating: 6.73 ]

The KL3JM modified SRI Fan Dipole for 80-40-20 Meters - The antenna in this project is a modification of the techniques used to design a multiband fan type dipole with little or no tuning involved having a total space of 105 feet
[ Hits: 502 | Votes: 1 | Rating: 5 ]
Half Wave Fan Dipole Antenna - Amateur Radio 40m 20m 15m Half Wave Fan dipole antenna project with part list, pictures and drawing. Includes the option to expand the antenna to cover the 80 meters band
[ Hits: 681 | Votes: 1 | Rating: 1 ]
6 Bands Fan Dipole Antenna - Extension to an existing fan dipole originally modeled for 40 20 and 6 meters. This modification will add 80 15 and 10 meter bands.
[ Hits: 1298 | Votes: 2 | Rating: 5 ]

RX Loop Antenna for 80 and 160 Meters - Four or Five turn one meter loop antenna for 80 and 160 meter band. This home made receive only antena can be assembled in a small place.
[ Hits: 248 | Votes: 1 | Rating: 1 ]

Portable NVIS Loop for 80m to 40m - A portable (15.5 foot diameter) NVIS loop for 3.5 to 7.3 MHz. Performs well at high and low takeoff angles, and has smaller footprint than most NVIS antennas.
[ Hits: 364 | Votes: 0 | Rating: 0 ]

Balcony Mounted Buddistick Antenna by KP4MD - The antenna handles 250 watts and covers 40 through 10 meters, with an optional add on coil for 80 and 60 meters. The author in this pages includes an interesting video in which describes the antenna setup, and the importance of the shunting coil on lower bands like 40 and 80 meters. SWR curves diagrams are also included and demonstrate the influence on resonating frequency of the shunting coil.
[ Hits: 281 | Votes: 3 | Rating: 10 ]

Half Sloper Multiband Antenna - A presentation of a HF multi-band sloper antenna. This antenna project is for low band operations, and antenna presented in this article works on 40 80 and 160 meters band. Article is in Polish.
[ Hits: 793 | Votes: 5 | Rating: 7 ]

Improve your Antennas for Low Solar Activity - How to improve your transmitting antennas for very low solar activity periods, vertically polarized 160 meter antennas, horizontally polarized 80 to 10 meter antennas, single or stacked yagis, multi-tower stations
[ Hits: 422 | Votes: 0 | Rating: 0 ]

Semi-automatic antenna tuner project - Thsi article describes a microcontroller driven semi-automatic antenna tuner capable of handling power levels up to 150 watts. The device is a low pass filter tuner manually tuned by setting the optimized L/C combination by hand and then storing the values into the EEPROM of the mictrocontroller to recall them later (seperately for each band from 80 to 10 meters including WARC bands)
[ Hits: 291 | Votes: 0 | Rating: 0 ]

Cobra Antenna - A folded dipole - A wire dipole antenna for the 80 and 40 meters band obtained by folding elements of a dipole and feeding with a 1:4 balun.
[ Hits: 1053 | Votes: 5 | Rating: 6.8 ]

A 3.5MHz Receiver for SSB and CW - Homemade receiver for 80 meters band. The receiver works very well (in fact better than some of its successors), especially the AGC makes listening to 80m QSOs a real pleasure. Sensitivity is not cutting-edge, but on a full-size short-wave antenna it is by fare sensitive enough.
[ Hits: 250 | Votes: 2 | Rating: 6.5 ]