hf auto

hf auto

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• How build a 1:40 Balun - Italian page about a home made a 1 to 40 balun with pictures and measurements on HF bands.
  [ Hits: 1316 | Votes: 2 | Rating: 8 ]

• 88' Zig Zag Double Extended Zepp - A Double Zepp indoor antenna based on Cebik's reccomendations and design. Can cover HF bands, fed with 450 ohm open wire feeder terminating in an automatic antenna tuner, can perform incredible results.
  [ Hits: 2686 | Votes: 7 | Rating: 6.71 ]

• An automatically tuned 7-30MHz mobile antenna - This is a base-loaded vertical antenna that mounts on the car's roof. The loading coil is designed as a variable inductor, with a three-legged chariot that travels up and down inside the coil, with grooved brass wheels running on the coil turns, and driven by a slotted rotor tube.
  [ Hits: 4049 | Votes: 2 | Rating: 1 ]

• Notes on Portable HF Antennas - Notes on an optimum Portable HF Antenna, a comparison of MFJ927 and SGC239 autotuners, and a 31 ft. vs 43 ft. vertical by VE1ZAC
  [ Hits: 452 | Votes: 1 | Rating: 10 ]

• The EZ-Tuner - The "EZ-Tuner" is a homebrew automatic legal-limit antenna tuner that covers all amateur HF bands from 160-10 meters. Using a T-network design and controlled by a BASIC Stamp BS2sx microcontroller, the EZ-Tuner will match at least a 16:1 VSWR for either unbalanced or balanced transmission lines.
  [ Hits: 5569 | Votes: 1 | Rating: 9 ]

• HF-series Power Amplifier - Manufacture HF-serie power amplifiers for global radio amateurs. Provide two models: manual HF2000DX and automatic HF2011DX-A
  [ Hits: 971 | Votes: 4 | Rating: 3.5 ]
• SPE Electronics - Makers of the worlds smallest automatic solid state HF amplifier Expert 1K-FA, Expert 2K-FA and Expert 1.3K-FA
  [ Hits: 362 | Votes: 0 | Rating: 0 ]

• Autotena - Antenna manufacturer in Taiwan, products range are RF communication antennas ( CB, VHF, UHF, Dual band, Base Station, Marine, GPS,GSM, PCS, Cellular, DVB-T ) , Amplifiers , Mounting Kit ,Accessories & Related products.
  [ Hits: 4289 | Votes: 8 | Rating: 4 ]

• CG Antenna - CG Antenna is a HF radio communication solution manufactory based in China produce automatic antenna tuners, and digital radio interfaces.
  [ Hits: 772 | Votes: 1 | Rating: 1 ]

• Q15X25 - Q15X25 is a packet modem with a KISS/AX.25 interface designed for HF transmission of AX.25 packets and TCP/IP using Automatic Repeat reQuest (ARQ) and forward error correction (FEC).
  [ Hits: 705 | Votes: 1 | Rating: 1 ]

• ARRLWeb: Automobile - Hams have been putting stations in their cars since the Twenties. Today, there is great satisfaction in facing the challenge of installing a transceiver in our small cars and pick-ups, using somewhat inefficient antennas
  [ Hits: 855 | Votes: 2 | Rating: 10 ]

• NAVTEX - The NAVTEX system is used for the automatic broadcast of localised Maritime Safety Information (MSI) using Radio Telex (also known as Narrow Band Direct Printing, or NBDP).
  [ Hits: 2248 | Votes: 5 | Rating: 5.8 ]

• Automatic Picture Transmission - Automatic Picture Transmission (APT) is used by Satellites to enable a fully automated unattended reception of the transmitted pictures.
  [ Hits: 2403 | Votes: 5 | Rating: 1.6 ]

• Propagation eAlert Service - Automatic e-mail alert of propagation information. Gives current solar flux, Ap, Kp, solar wind information, solar and geomagnetic conditions past and forecast, sunspots, aurora index, and more.
  [ Hits: 855 | Votes: 1 | Rating: 10 ]

• Icom IC703 10W Transceiver - The IC703 features a built-in DSP filter and auto ATU as well as speech processing an a CW keyer with 3 message memories. It is an ideal all-in-one ham station for QRPers.
  [ Hits: 404 | Votes: 3 | Rating: 10 ]

• Shipplotter - ShipPlotter displays complete information about ships that are within VHF range of your position using the Universal Automatic Identification System (AIS).
  [ Hits: 2914 | Votes: 14 | Rating: 6.79 ]

• PropView - PropView is a free application that uses the included VOACAP, ICEPAC, and IONCAP engines to graphically display band openings between two locations over a specified 24 hour period. It can also build schedules for the IARU/HF beacon network and automatically QSY your transceiver to monitor each scheduled beacon.
  [ Hits: 12154 | Votes: 144 | Rating: 8.27 ]
• Beacons - The W6AMT Beacons is a Windows program which automates the collection of radio propagation data. HF data is collected by monitoring the worldwide network of NCDXF / IARU HF beacons.
  [ Hits: 2587 | Votes: 4 | Rating: 7.5 ]
• Faros - Windows shareware, automatic NCDXF beacon monitor for Radio Amateurs, SWL'ers and HF communication engineers. by Alex VE3NEA. It continuously monitors 18 NCDXF beacons on five bands, automatically detects the presence of the beacon signals, even in QRM and noise.
  [ Hits: 1420 | Votes: 3 | Rating: 10 ]

• The Microsniffer Project - The Microsniffer is a fully autoranging VHF or UHF sniffer which has been designed for those who are foxhunting on a budget.
  [ Hits: 627 | Votes: 0 | Rating: 0 ]

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