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Antennas
- The TTFD-2 antenna
- The lowest-cost approach for home brewing broadband, general-purpose antenna for shortwaves
[Hits: 5191 | Votes: 18 | Rate: 7.61] Antennas : 160M Antennas : 20M
- Homebrew Travel Antenna
- This is a low cost homebrew two band travel antenna for 20 and 40 meters. It is based on the B&W Travel Antenna concept with a telescoping whip and a loading coil
[Hits: 14297 | Votes: 11 | Rate: 6.36] Antennas : 6M
- Loop Antenna for 6m
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- Indoor loop antenna for six meters band, project by Colen Harlow, G8BTK
[Hits: 24197 | Votes: 16 | Rate: 4.44] Antennas : Quad
- CB Quad antenna
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- A low-cost and easy to build Quad antenna tuned for CB band on 27 Mhz.
[Hits: 20669 | Votes: 49 | Rate: 6.50] Antennas : Receiving
- 160/80m Coaxial Receiving Loop Antennas
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- Receiving loop antenna for top band. This antenna allow to reduce noise on both bands. The stand alone 80m loop is approximately four feet in diameter. And made of light weight material. Which makes it ideal for portable use or you can mount it above a pre-existing vhf antenna, and due to it's small size it is quite rotatable.
[Hits: 50028 | Votes: 47 | Rate: 5.88] Antennas : Repair and Maintenance
- EI7BA's Amateur Radio Pages
- Multi Band Quad,Cushcraft R5, R7, R7000, repair and maintenance, Remote Antenna Switching, Hexagonal Beam, Automatic Band Decoder, Low Band Verticals, Crank-up Tiltover Tower etc
[Hits: 12300 | Votes: 19 | Rate: 7.53] Antennas : Vertical DX Resources : Newsletters
- Low band monitor
- The Low Band Monitor Newsletter is dedicated to the 40 - 80 and 160 Meter DXer.
[Hits: 703 | Votes: 3 | Rate: 9.67] Ham Radio : Band Plans
- RSGB HF Data Band Plans
- The following frequencies are assigned to datacommunications in the HF bands within the UK
By RSGB data communications committee information.
[Hits: 2024 | Votes: 4 | Rate: 4.50] Ham Radio : Personal Pages : Europe
- SV8CS Spiros
- Dx on Hf specially on low bands from Zante island Greece
[Hits: 232 | Votes: 2 | Rate: 10.00] Internet and Radio : Mailing Lists
- 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: 495 | Votes: 0 | Rate: 0.00] Manufacturers : Amplifiers
- TE Systems
- Manuf RF power amplifiers wideband+narrowband for Commercial, Defense, OEM and amatuer markets. Also low-noise rf amplifiers
[Hits: 838 | Votes: 0 | Rate: 0.00] Manufacturers : Antenna Analyzers
- Array Solutions - WX0B
- Stacking and phasing HF and 6m arrays antenna switches and contesting devices. Custom low band antenna arrays, bandpass filters,commercial/Mil STd filters,microwave components, commercial broadcast filters.
[Hits: 4406 | Votes: 7 | Rate: 7.14] Manufacturers : Antennas : HF : Log Periodic Antennas
- Giovannini Elettromeccanica
- Quad, Yagi for low bands. Specialist in antennas, supports and moving of medium-large sized radio antennas, professional rotators, masts, towers, and accessories.
[Hits: 6495 | Votes: 10 | Rate: 6.60] Manufacturers : Filters
- Heros Technology Ltd
- HF Radio Preselectors,BCB filters,Low Pass filters,Band Pass filter
[Hits: 208 | Votes: 1 | Rate: 10.00] Operating Modes : Hellschreiber
- 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: 1339 | Votes: 5 | Rate: 9.80] Operating Modes : VHF UHF
- 49MHz Hobbyists Site
- A website and email reflector for hobbyists in the unlicensed 49MHz low-power band.
[Hits: 1487 | Votes: 4 | Rate: 7.50] Propagation : Resources Software : Audio Recorders
- Scanrec Scanner Recorder
- Scanner Recorder (Scanrec) is a free audio recorder that is primarily designed to record speech. It has a VOX control that allows the user to save disk space when no sound is present in the signal. Since FM communications has such an effective squelch, the recorder works best with FM. HF ham bands and World Band radio have such a poor signal to noise ratio that the VOX gate on Scanrec might not be very easy to set.
[Hits: 9817 | Votes: 35 | Rate: 7.03] Software : Circuit Design
- WINRLC
- Simple freeware tool to calculate several kinds of HF filters. Use to calculate L-C and R-C band filters and bandpasses, L-C, L-R and R-C highpasses and lowpasses, coils and capacitors.
[Hits: 4260 | Votes: 11 | Rate: 5.45] Software : Contesting
- Super-Duper for Listeners
- SDL is a dedicated contest logger for SWLs. It's good for all the major international contests and for dozens of others worldwide. SDL is fully working and unrestricted, and is distributed as freeware. It links to Icom, Kenwood and Yaesu radios to follow band and mode changes.
[Hits: 1123 | Votes: 3 | Rate: 7.00] Software : DSP
- Free programmable DSP-Filter
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- Free programmable LOW/HIGH/BANDPASS FIR filter in the audio range 0-4kHz
[Hits: 22956 | Votes: 71 | Rate: 5.70] - SlowFeld
- Win95 xperimental narrow band communication program that makes use of the Hellschreiber principle
[Hits: 847 | Votes: 0 | Rate: 0.00]
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