low bands

low bands

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• Low band antennas for 80 and 160m  ^pop - Antennas for the Low Bands. Plans and pictures of 80m and 160m antennas, both for transmission and reception built by EI7BA
  [ Hits: 55529 | Votes: 33 | Rating: 6.12 ]

• W7AV 40 Meter Half Square - These antennas offer big gun DX performance on the low bands, yet they are surprisingly simple to build. Try one- you will like it!
  [ Hits: 4048 | Votes: 4 | Rating: 6.25 ]

• Beverage switching box  ^updated - Sharing beverage antennas with this switch boxes is possible. This article describes a 6-position remote antenna switch for Beverage antennas on 3 bands (160m, 80m, 40m). It allows selecting one of 6 antennas for each band without affecting other receivers. The system uses a control box with a rotary switch and a separate splitting box with bandpass filters for each band.
  [ Hits: 5507 | Votes: 3 | Rating: 4.33 ]

• Build An LF Antenna Analyzer - A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.
  [ Hits: 4567 | Votes: 2 | Rating: 5 ]

• G5RV multi-band antenna - Multi-band centre-fed antenna capable of very efficient operation on all HF bands, specifically designed with dimensions which allow it to be installed in gardens and other open spaces which accommodate a reasonably-straight run of 31.1m (102 ft) for the flat-top standard model.
  [ Hits: 7302 | Votes: 8 | Rating: 7.38 ]

• A Small Wire Loop Antennas for 160 meters  ^pop - Low noise, receive only coax loop antennas for 160 - 10 meters HF bands
  [ Hits: 49347 | Votes: 10 | Rating: 6.5 ]

• 160/80m Coaxial Receiving Loop Antennas  ^pop - 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: 65116 | Votes: 61 | Rating: 5.89 ]

• Antennas for HF mobile operation  ^pop - The following description should give you guidance on how to build a mobile antenna for HF bands yourself, using a very cheap CB-mobile whip antenna base. Antennas for mobile operation 7Mhz ,10Mhz, 14Mhz, 18Mhz, 21Mhz, 24Mhz,28-430Mhz
  [ Hits: 90295 | Votes: 80 | Rating: 5.12 ]
• Effective HF Mobile Antennas - Effective HF Mobile Antennas Keith WB2VUO, explains difficulties on gaining antennas efficiency on lower bands with mobile antennas.
  [ Hits: 7913 | Votes: 4 | Rating: 6.75 ]

• Homemade Carolina Windom antenna - This multiband wire antenna it is an off centre fed dipole, with 10 feet of vertical radiator, needs no tuner on 40m, 20m and 10m and works fine on all bands above 40m with a tuner, and even below 40m on 60m, and 80m.
  [ Hits: 8186 | Votes: 12 | Rating: 7.58 ]

• 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: 68064 | Votes: 64 | Rating: 5.08 ]

• Petlowany Three-Band Burner Antenna - a simple, low-cost, trapless short vertical antenna which amazingly works on three HF bands (20, 15 and 10 meters)
  [ Hits: 15303 | Votes: 5 | Rating: 8.2 ]

• K5ZD contest audio recordings - Have you ever wanted to listen in on a serious SO2R DX contest effort? hear what the low bands sound like from New England? enjoy a contest without having access to a radio? This is your chance!
  [ Hits: 2113 | Votes: 2 | Rating: 9.5 ]

• 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: 2465 | Votes: 5 | Rating: 3.8 ]

• SV8CS Spiros - Dx on Hf specially on low bands from Zante island Greece
  [ Hits: 446 | Votes: 2 | Rating: 10 ]

• 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: 731 | Votes: 0 | Rating: 0 ]

• 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: 8928 | Votes: 14 | Rating: 6.86 ]

• About AMTOR - AmTOR may be considered as the next development from RTTY. AmTOR was introduced to overcome the problems with RTTY. As a result of its performance, it has become popular on the HF bands because it gives more reliable communication, especially when interference is present. It achieves this by using a coding system that allows errors to be detected and corrected.
  [ Hits: 363 | Votes: 0 | Rating: 0 ]

• 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: 15540 | Votes: 53 | Rating: 6.82 ]

• Diplexer - This program expedites the design of lumped-element diplexers using both the lowpass/highpass and the bandpass/bandstop topologies.
  [ Hits: 1497 | Votes: 5 | Rating: 4.6 ]

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