8 band

687 links - and 4 categories

The Battle Creek 40 80 160 m antenna - 3 Band vertical Marconi-antenna for the bands 40, 80, 160 meters with a ground net of wires as radials.
[ Hits: 2728 | Votes: 3 | Rating: 8 ]

Portable Dipole Antenna for 7 MHz - A simple portable dipole antenna for the 40 meter band using a total lenght of 18 meter. It can be used for 80 to 10 meters coverage using a antenna tuner.
[ Hits: 324 | Votes: 2 | Rating: 7.5 ]

Multi-Band Super Mini Loop Antenna - How to make the Super antenna. To build this antenna you need a lot that is at least 100 feet across. Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands This antenna works as a Full Wave Loop on 80 Meters and also works as a 2 wavelength open loop or Bi-Square on the 40 Meter band
[ Hits: 23212 | Votes: 8 | Rating: 6.95 ]

VE7CA portable tribander yagi - 30/17/12 and 20/15/10-Meter Tribanders and a 40 meters inverted V wire yagi antenna
[ Hits: 2655 | Votes: 1 | Rating: 5 ]

Inverted V - Described is a simple inverted-V antenna which, when used with a balanced ATU, can be used on all the main Radio Amateur HF bands (80, 40, 20, 15 and 10m). The cental support is made in such a way that the wire can be coiled up for storage when the antenna is taken down.
[ Hits: 3398 | Votes: 1 | Rating: 8 ]

Large multiband moxon antenna - This very large moxon antenna resonate on 80 40 and 10 meters, has been used for CQWW 2006 by a YU team project
[ Hits: 4367 | Votes: 3 | Rating: 9.33 ]

Vertical antenna for Vacation - Vertical Vacation Antenna for 80, 40 and 20 Meter-Band, by Herbert OE3BMB This antenna is a full size λ/4 for 20m and 40m band, and a shortened λ/4 for the 80m band. Generally on the 40m band the SWR is under 1,6. In 80m and 20m band at the resonant frequency the SWR is about 1,1.
[ Hits: 5037 | Votes: 4 | Rating: 8 ]

Portable satellite antenna - A project for a portable antenna for amateur radio satellite reception, for 2 meters and 70 centimeters bands
[ Hits: 3059 | Votes: 0 | Rating: 0 ]

Switched inductor L match tuner - A 10 to 80 meters band qrp antenna tuner by KC8AON, based on Steve Weber, KD1JV "ALT or Altoids L Tuner"
[ Hits: 6468 | Votes: 9 | Rating: 7 ]
A Z match tuner for HF bands - This small tuner by KC8AON has only 2 controls and will tune almost anything from 10 to 80
[ Hits: 9798 | Votes: 5 | Rating: 4.6 ]

Vertical trapped antenna - An HF multiband trapped antenna in french
[ Hits: 1445 | Votes: 1 | Rating: 9 ]

W3DZZ multiband dipole - The multi-band trapped dipole is resonant on approx 3.7, 7, 14, 24 7 28.5 Mhz. The overall top length needs to be approximately 32.9 Meters
[ Hits: 10473 | Votes: 20 | Rating: 6.9 ]

40M Inverted Vee - This simple antenna can be used in various configurations for 40/80/20 or any WARC band or a combination of them
[ Hits: 3836 | Votes: 1 | Rating: 10 ]
Multi Band Wire HF Antennas - Notes on multi band HF antennas by G8JNJ
[ Hits: 1065 | Votes: 0 | Rating: 0 ]

OK0EV 1854 Khz beacon - Beacon OK0EV works daily from 6:00AM to 8:00PM local time in 160m band from the Czech Republic.
[ Hits: 597 | Votes: 14 | Rating: 6.14 ]

Low Frequency Transmission Modes - Article by W1TAG on operating modes used on low-banding. The 2200 meter band (135.7 - 137.8 kHz) is only 2.1 kHz wide, so voice work on SSB or AM is out. Find out the best modes on LF
[ Hits: 438 | Votes: 0 | Rating: 0 ]

WideBand for Yaesu 817 857 897 ^pop - Free Download of Widebander. This software will allow you to extended TX for the Yaesu FT 857 FT 817 FT 897 and reset back to standard factory defaults. Warining: this programs looks like not to be supported. Download and use it at your own risk.
[ Hits: 41154 | Votes: 65 | Rating: 6.14 ]

Homebrew a CW Filter - An home-brewed morse code CW filter with a central frequency of 800hz and a variable bandwidth from 230hz to 26hz by F5RDH in french.
[ Hits: 1769 | Votes: 2 | Rating: 2.5 ]
Interdigital bandpass filter designer - Fill out the form to design a bandpass filter as described in the January 1985 issue of Ham Radio Magazine. These filters are generally limited to frequencies above 200 MHZ because their size is slightly longer than 1/4 wavelength
[ Hits: 1117 | Votes: 6 | Rating: 7.67 ]