band

2398 links - and 30 categories

QM7 7 elements 144 MHz Yagi-Uda Antenna - The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB
[ Hits: 5231 | Votes: 15 | Rating: 5.27 ]
8 Element Quad for 145 Mhz ^pop - 8 elements quad antenna for 2 meters band, centered on 145 Mhz
[ Hits: 28649 | Votes: 101 | Rating: 5.88 ]

Switchable Antenna 80/160 meters band ^pop - A switchable antenna for 80/160 meters by IK1ZOY. A new version of a 1/4L 80 m. dipole modified for use in 160 m. band. using it's own coaxial cable feeder to wrap a coil.
[ Hits: 16514 | Votes: 6 | Rating: 5.50 ]

A Small Loop Antenna for Forty Meters ^pop - Article on a small magnetic loop antenna for forty meters band by Ben Smith
[ Hits: 26548 | Votes: 8 | Rating: 5.00 ]

Effective HF Mobile Antennas - Effective HF Mobile Antennas Keith WB2VUO, explains difficulties on gaining antennas efficiency on lower bands with mobile antennas.
[ Hits: 7724 | Votes: 4 | Rating: 6.75 ]

Cubic Quad ^pop - The cubic quad is a very popular way to get reasonably high gain and excellent front to back ratios as well as low angles of radiation for without going to extreme heights. Includes design for 2 6 10 12 15 meter bands
[ Hits: 66689 | Votes: 59 | Rating: 4.91 ]

Groundplane antenna - Short guide to build your own groundplane antenna, includes radial measurements fro warc bands
[ Hits: 5312 | Votes: 2 | Rating: 10.00 ]
7 MHz Vertical antenna ^pop - 7 MHz Vertical antenna for ham radio band of 40 meter text in spanish and english
[ Hits: 32876 | Votes: 92 | Rating: 8.55 ]

A Hexbeam in 3 hours - EI7BA describes a nice selfmade Hexbeam project for a single band version.
[ Hits: 3076 | Votes: 1 | Rating: 8.00 ]
40m Short Antenna ^pop - GM4JMU shortened dipole for 40 meters band
[ Hits: 26450 | Votes: 29 | Rating: 5.07 ]
Half square antenna - The elevated half square antenna is a very simple antenna that can be constructed from common materials yet gives significant improvement over a dipole at the same elevation. Ground mounted versions of this antenna are commonly used in amateur radio for 75/80 and 160 meter bands
[ Hits: 7029 | Votes: 3 | Rating: 7.67 ]

DXQSM Freeband dx infos - Website for 11 meters freebanders activations , QSM adress( OM & email) logs links and dx cluster
[ Hits: 1810 | Votes: 2 | Rating: 10.00 ]
DXIOTA Freeband IOTA info - Iota Website for 11 meters freebanders
[ Hits: 1001 | Votes: 1 | Rating: 8.00 ]

GDXF - German DX Foundation - The German DX Foundation (GDXF), founded in 1996, was established to support HF DX activities - on all bands or modes - to rare countries all over the world
[ Hits: 991 | Votes: 9 | Rating: 7.22 ]

160 m DXCC - The largest and most up-to-date rankings of top-banders on the Internet.
[ Hits: 468 | Votes: 0 | Rating: 0.00 ]

ON4AOI Automatic Band Decoder - Automaticaly select the correct antenna and bandpass filter, by ON4AOI
[ Hits: 1263 | Votes: 4 | Rating: 7.25 ]

Autotena - Antenna manufacturer in Taiwan, products range are RF communication antennas ( CB, VHF, UHF, Dual band, Base Station, Marine, GPS,GSM, PCS, Cellular, DVB-T ) , Amplifiers , Mounting Kit ,Accessories & Related products.
[ Hits: 4104 | Votes: 8 | Rating: 4.00 ]

Auto Band Select Box for the FT-817 - This project is an interface box for the Yaesu FT-817 that includes a band output port, a computer serial interface, and a remote interface for the FL-7000 (and Quadra?) solid state power amplifiers
[ Hits: 2102 | Votes: 0 | Rating: 0.00 ]

FT897 SuperControl ^updated ^pop - CAT control and logging software project especially developed for the YAESU FT-897 transceiver. Full control of the trcvr, EEPROM modification, VoIP, TCP/IP remote control, macro CW keyer, visual band scope
[ Hits: 15828 | Votes: 22 | Rating: 7.86 ]

A 80/40m DDS controlled QRP CW transmitter - JUMA-TX1 is a 5W CW transmitter for the 80/40m bands. Juha (OH2NLT) and Matti (OH7SV) have had high quality CW keying and a compact size as design goals for this project. No coils need to be wound to construct this transmitter!
[ Hits: 4530 | Votes: 5 | Rating: 7.80 ]