80 40 antenna

148 links - and 1 categories

Broadband 80 meter dipole - The AB2RA bowtie 80 meter antenna includes also a 40 meter dipole
[ Hits: 864 | Votes: 0 | Rating: 0 ]
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 ]

20 40 80 Trapped Dipole - An homemade portable trapped dipole antenna for 40 and 80 meters band with an optional extension for the 20 meters.
[ Hits: 1403 | Votes: 9 | Rating: 5 ]

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 ]

Shortened EFHW Antenna 80-10m ^updated - A shortened multiband antenna, about 23m long, for 80m - 10m bands with a low SWR (<1.3) on 80m and 40m, and <3 till 10m. Bandwith on 80m is 300kHz
[ Hits: 4133 | Votes: 11 | Rating: 6.18 ]
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: 1299 | Votes: 2 | Rating: 5 ]

4 Square K9AY Antenna - 4 Square K9AY Array project for 80 and 40 meters band
[ Hits: 555 | Votes: 0 | Rating: 0 ]

Morgain Antenna by DL6GD - A schematic antenna for a 40-80 Morgain dipole antenna with diagram and pictures, article partially in german
[ Hits: 1489 | Votes: 6 | Rating: 6.5 ]

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: 366 | 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 ]

Dish Antenna for 2.4 GHz Satellite Reception - Modified 80cm Offset Dish for 2.4 GHz Satellite Reception. This 50-ohm impedance antenna allows, when connected to 2.4GHz preamplifier and downconverter, to receive Amateur satellites with 2.4GHz transponders such as AO-40.
[ Hits: 319 | Votes: 1 | Rating: 5 ]

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 ]

Safari - Inverted V antenna - A dual band portable inverted V antenna for 80 and 40 meters band with dimensions for other bands and several assembling instruction
[ Hits: 619 | Votes: 1 | Rating: 5 ]
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 ]

Some Useful ZS6BKW Modifications - The ZS6BKW antenna evolved from an optimization of the G5RV antenna. The SWR on 80m is too high and the 40 ft ladder line matching section is a little too long on 17m and a little too short on 10m
[ Hits: 1025 | Votes: 3 | Rating: 4 ]

HF2V 80 40m Vertical - Article on the HF dual band antenna with construction details and how to add 160 meters to the HF2V
[ Hits: 3030 | Votes: 10 | Rating: 7.2 ]