- The TTFD-2 antenna
- The lowest-cost approach for home brewing broadband, general-purpose antenna for shortwaves
[ Hits: 6352 | Votes: 19 | Rating: 7.58 ]
- Building an own Stackmatch
- Nowdays lots of people are putting up antennas to either beam in different directions at the same time or just to stack them and get a lower angle of radiation. Use this stackmatch to match you array.
[ Hits: 1408 | Votes: 1 | Rating: 8.00 ]
- 7 Elements YAGI for 144 Mhz
- The QM7 antenna is a simple 7 elements Yagi with 3.7 m boom length for the lower 144 MHz
SSB/MGM band, in PDF Format
[ Hits: 40012 | Votes: 37 | Rating: 5.96 ]
- QM5 Yagi for 2 meters band
- The QM5 antenna is a simple 5 elements Yagi with 1.88 m boom length for the lower 144 MHz SSB/MGM band, I used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 9.17 dBd; i.e. 11.3 dB forward gain over the isotropic radiator, while the F/R is about 11.5 dB. Elements
[ Hits: 6470 | Votes: 4 | Rating: 5.25 ]
- 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: 5181 | Votes: 15 | Rating: 5.27 ]
- Effective HF Mobile Antennas
- Effective HF Mobile Antennas Keith WB2VUO, explains difficulties on gaining antennas efficiency on lower bands with mobile antennas.
[ Hits: 7640 | Votes: 4 | Rating: 6.75 ]
- Crossed-Wire HF Antenna
- This Crossed-Wire Electrically-Steerable HF Antenna, capable of transmitting signals over the entire 1.8 to 30MHz HF range, and capable of receiving signals at much lower frequencies is basically a crossed centre-fed wire system, consisting of four thin wires brought to a central mast by G3YNH
[ Hits: 4801 | Votes: 2 | Rating: 10.00 ]
- Double 5 / 8 Flower Pot Antenna
- The Double 5/8 is a natural extension of the Single 5/8 and uses a 5/8λ element for both the top and bottom radiators.
[ Hits: 825 | Votes: 1 | Rating: 10.00 ]
- G1IVG Colin
- Amateur Radio mods for FT847, TM732, TH48, C510, GP300, GM300, MCMicro, IC2800 plus others
[ Hits: 2267 | Votes: 9 | Rating: 8.33 ]
- Microwave Email list
- Message list about 903 Mhz. and above bands. Use various VHF reflectors for the 432 and lower bands. Most traffic will be about 2304 and above.
[ Hits: 608 | Votes: 0 | Rating: 0.00 ]
- Hellschreiber beacon project
- This web site describes a low power beacon system to be used for propagation and performance tests on the lower bands. The beacon offers CW (on-off keyed) modes and FSK modes; the traditional Morse ID mode, and Feld-Hell, another highly noise immune CW mode.
[ Hits: 1495 | Votes: 6 | Rating: 9.83 ]
- Freeband EQSO Server
- Eqso server for eleven meter freebanders. Only freebanders are allowed by this eqso server, based in spain
[ Hits: 3000 | Votes: 30 | Rating: 4.76 ]
- KH6FOO Pages
- Hawaii-Californian Tropo ducting reports
[ Hits: 428 | Votes: 1 | Rating: 5.00 ]
- Frequency Guide Victoria
- A site for every scanner enthusiast but especially for people living or visiting the lower Vancouver Island Area and Victoria B.C. Canada. This page has pictures with aerial pictures.
[ Hits: 3804 | Votes: 12 | Rating: 5.75 ]
- Mainland Radio Communications
- Yaesu Kenwood, drake MFJ JPS JRC AOR Daiwa Hygain Weltz Uniden Lowe Black Jaguar Trident dealer
[ Hits: 3626 | Votes: 11 | Rating: 4.82 ]
- IMAGINE QSL's Print Service
- We design and print QSLs (simple,double,triple...), calendars, awards, directories... High quality at lower price
[ Hits: 2017 | Votes: 2 | Rating: 5.50 ]
- VOA Special English uses a limited vocabulary and a slower rate of speech to help people become familiar with American English through programs on radio, television and the Internet. At the same time people also learn about world news, science, American culture and other subjects.
[ Hits: 728 | Votes: 10 | Rating: 5.50 ]
- Audio spectrum analyzer
- Analyzes audio from 10 Hz to 20 kHz, input from microphone or wave file, Variable sample rates (8000 Hz, 11025 Hz, 22050 Hz, 44100 Hz)
Variable transform sizes (1k, 2k, 4k, 8k)
Upper and lower limits adjustable
Continuous, averaged, peak hold
[ Hits: 29101 | Votes: 52 | Rating: 3.75 ]
- Fox Tango International
- Yaesu FT-101 Users Group purpose and scope is to serve as a sort of benevolent, protective, mutual aid and social club, essentially for the purpose of interchanging information, ideas, experiences and problems. By and for owners of Yaesu amateur radio equipment. Founded in 1972 by Amateur Radio operator Milton Lowens N4ML
[ Hits: 1834 | Votes: 260 | Rating: 8.84 ]
- Icom 706MKIIG mod of internal fan on rx
- Unlike the old Icom 706, the 706 MKIIG HF/VHF/UHF multi-mode ham radio transceiver do not keep its internal blower running all the time in receive mode.
[ Hits: 3150 | Votes: 120 | Rating: 9.44 ]
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