performance hf

performance hf

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• Petlowany Three-Band Burner Antenna - The Petlowany Three-Band Burner is a simple, low-cost, trapless short vertical antenna which amazingly works on three HF bands (20, 15 and 10 meters). This web page contains pictures, performance data, and enough construction details so you can homebrew your own.
  [ Hits: 6057 | Votes: 5 | Rating: 7.2 ]

• AMRAD Active LF Antenna - The AMRAD Active LF Antenna. You can tune into LF activity with this easy-tobuild and erect active antenna. As a bonus, you get MF and HF coverage, too—not to mention world-class performance
  [ Hits: 2473 | Votes: 1 | Rating: 10 ]

• Some J-Poles That I Have Known - The varieties of twinlead J-Poles and some performance standards, L. B. Cebik, W4RNL
  [ Hits: 4304 | Votes: 4 | Rating: 3.75 ]
• The DBJ-1 VHF-UHF Dual Band J-Pole - Searching for an inexpensive, high performance dual band base antenna for VHF and UHF ? Build a simple antenna that uses a single feed line for less than $10.
  [ Hits: 6291 | Votes: 5 | Rating: 6 ]

• 1.8 to 21 Mhz Magnetic Loop antenna - Magnetic loops are a compromise antenna and performance will be down on a full size-wire antenna particurlarly on lower HF Bands. This article compare this magnetic loop with a full-sized wire antenna on 80 meters by VK3YE
  [ Hits: 13715 | Votes: 41 | Rating: 6 ]

• HF insulation, the pitfalls - Although insulation may seem relatively insignificant in the larger picture, on it depends the quality of your performance on air and how long you will be communicating for.
  [ Hits: 540 | Votes: 0 | Rating: 0 ]
• VHF antennas, construction and use - Article by VU2GT about VHF antennas, how to evaluate performances and models.
  [ Hits: 995 | Votes: 0 | Rating: 0 ]

• Cutting Jig for VHF/UHF yagi elements - If you want a top-performance VHF/UHF Long Yagi, you will probably have to build it yourself.
  [ Hits: 18943 | Votes: 14 | Rating: 6.2 ]

• G8JNJ Broadband HF Vertical Antenna - G8JNJ Broadband HF Vertical Antenna - Requires no tuner - great results from 40m to 10m plus 80m & 6m with reduced performance
  [ Hits: 4679 | Votes: 4 | Rating: 7 ]
• Multiband HF Antenna - This article explores the performance of an unloaded vertical as a multi-band HF antenna.
  [ Hits: 1344 | Votes: 1 | Rating: 5 ]
• 13m high elevated vertical - This article explores the performance of an unloaded elevated vertical, base matching and feed line as a multi-band HF antenna system.
  [ Hits: 1357 | Votes: 0 | Rating: 0 ]
• Unloaded vertical as a multi-band HF antenna - Performance of an unloaded ground mounted vertical as a multi-band HF antenna.
  [ Hits: 660 | Votes: 0 | Rating: 0 ]

• LNA Technology - LNA Technology High Performance Low Noise Preamplifiers for Amateur Radio, VHF-UHF weak signal, DX, EME, and commercial applications.
  [ Hits: 2194 | Votes: 4 | Rating: 7 ]

• PCTEL Connected Solutions - PCTEL Connected Solutions develops and delivers high performance land mobile radio, WiFi, WiMAX, GPS, VHF, UHF and cellular antennas through its PCTEL, MAXRAD, Antenna Specialists, Bluewave and Wi-Sys brands
  [ Hits: 1623 | Votes: 22 | Rating: 6.26 ]

• Big Hair's Antennas - High Performance, HF, CB, base and mobile antennas
  [ Hits: 809 | Votes: 1 | Rating: 10 ]

• RF HAMDESIGN - An engineering oriented organization specializing in the design and manufacture of high performance parabolic antennas, 3dB high power RF couplers, Antenna power splitters, directional RF couplers and more items for RF transmission from HF through Microwave frequencies.
  [ Hits: 1616 | Votes: 5 | Rating: 9 ]

• 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 ]

• 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 ]

• Yaesu FT-857 description - The FT-857, the world's smallest HF/VHF/UHF mobile transceiver, provides base station-type performance from an ultra-compact package that's ideal for mobile or external battery portable work.
  [ Hits: 1111 | Votes: 0 | Rating: 0 ]

• Radio Mobile - Radiomobile is an excellent and very detailed radio path mapping software, vhf uhf propagation predictor. This windows free software is a tool used to predict the performance of a radio system.
  [ Hits: 10593 | Votes: 40 | Rating: 8.53 ]

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