lf antennas

lf antennas

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• Ground System on a 160M vertical - Ground system measurements on a 160 M vertical by Rudy Severns N6LF
  [ Hits: 1913 | Votes: 1 | Rating: 10 ]

• Balun for HF wire antennas  ^pop - Schema of a self made balun used to match randmon wire antennas, mainly for shortwave listening pourposes, in italian
  [ Hits: 36325 | Votes: 23 | Rating: 5.66 ]

• Portable QRP HF Antennas - Notes on the end-fed half-wave antenna, single-band stub-fed EFHW and a multiband EFHW antenna
  [ Hits: 6414 | Votes: 1 | Rating: 7 ]
• How to make an end-fed antenna work  ^pop - Here is a sure fire way to make end-fed halfwave antennas fed with a 50 ohm coupler work - without long radials, grounds, chokes, voodoo.
  [ Hits: 43964 | Votes: 30 | Rating: 6.71 ]

• 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 ]

• Remote Loop Tuning - Lyle Koehler's article on remote use of LF loop antennas for receiving purposes.
  [ Hits: 8909 | Votes: 6 | Rating: 4.5 ]

• Flags and Pennants - Excellent low-noise receive antennas originated by EA3VY and optimized for 160 meters by K6SE
  [ Hits: 2417 | Votes: 2 | Rating: 1.5 ]

• 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: 90297 | Votes: 80 | Rating: 5.12 ]

• Joby's Rhombic Ranch - Rhombic antennas plans
  [ Hits: 6458 | Votes: 12 | Rating: 7.25 ]

• Longwire antenna basics  ^pop - basic notes on building longwire antennas for medium waves
  [ Hits: 51003 | Votes: 41 | Rating: 5.96 ]
• Choosing wire for an antenna  ^pop - One of the most asked questions when it comes to antennas is what kind of wire should I use
  [ Hits: 32908 | Votes: 36 | Rating: 6.33 ]

• Limited space antennas - more limited space antennas
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• How create simple dipoles - How to create a simple but effective half wave dipole, illustrated instrucions on how to build wire antennas
  [ Hits: 3339 | Votes: 4 | Rating: 6.5 ]

• PY3CRX PY2PLL - Portuguese page, from VLF to some GHz, antennas, projects, EME, NDB DX and more.
  [ Hits: 2551 | Votes: 4 | Rating: 4.75 ]

• K4TR Antennas - K4TR Manufacture and sell simple dipoles, half square 2 wire phased vertical arrays, end fed zepp antennas, G5RV antennas. 1:1 baluns
  [ Hits: 4429 | Votes: 8 | Rating: 7.88 ]

• Antenna Noise and Signal Cancelling at LF - The fact that the phasing between a wanted signal and an unwanted signal can be different on different antennas is put to advantage. With this condition, the unwanted signal can be cancelled out by controlling amplitude and phase. The heart of the system is some form of phase control circuitry.
  [ Hits: 628 | Votes: 0 | Rating: 0 ]

• HF Antennas for restricted space - Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable.
  [ Hits: 9199 | Votes: 7 | Rating: 5.28 ]

• AMANDX - AMANDX is a site dedicated to the new listener. There are articles on antennas receivers etc.
  [ Hits: 1932 | Votes: 7 | Rating: 8.57 ]

• Antenna Noise and Signal Cancelling at LF - By using the signals from two antennas, controlling their relative amplitudes and controlling the phase of one of them, unwanted signal or unwanted noise can be phased out. Circuitry is described which uses the signal from a wire antenna to provide selective cancelling against the signal output from an LF loop antenna.
  [ Hits: 7909 | Votes: 6 | Rating: 4.5 ]
• QRM and noise reduction - You will find on these pages my experiences and results on antennas and local/non-local QRM/noise reduction. Using a broadband vertical active magnetic loop and a home made / designed broadband amplifier. Two vertical magnetic Alford loops are used in an array. Analog and Digital Signal Processing and a dual phase coherent Software Defined Radio (SDR) are used. By PA0SIM
  [ Hits: 5086 | Votes: 6 | Rating: 7 ]

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