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HF Propagation


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Friends News - The DXZone.com

The DXZone.com Amateur Radio Internet Guide

Latest articles, reviews and links posted to The DXZone.com, an amateur radio, cb radio, scanning and shortwave radio, reference site

Top Amateur Radio Websites - Issue 2239  View ?

Slim Jim vs. Traditional J-pole Antenna, 40-80 Coax Trap Dipole, Repurposing LEDs from commercial strips, Roving Antenna Range and Much More, N6QAB Hidden Transmitter Controllers, FT-817 CAT and Dig Mode Interface
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2238  View ?

The UnTenna, Wire Beam Antenna Types, Universal PC Headset Interface, Camping Portable antenna overview, E-Sporadic Forecast - propquest, More UHF Cheap Yagi Antennas, Yaesu FT-950 CAT Manual
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2237  View ?

Short Antenna for 40-30-20 Meters Band, VE6LK Fan Dipole , Zeppelin aerials, VHF APRS Propagation Map, How RTL-SDR dongles work, Elecraft K2 Preselector Modification, IC706 MKIIg Cooling Fans Mod
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2236  View ?

Amateur Radio License Map, 80m Vertical, RF Exposure Calculator, Demonstrating AM sidebands, Retevis RT3 Tytera MD-380 Modifications, Automated Voice announcements over RF , ARRL Exam Review for Ham Radio,
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2235  View ?

The Pop-Up Vertical 2.0, Handheld SSB transceiver for 20m, CAT Interface for Yaesu FT-817 and FT-100, Homebrew an OCF Off-Center Fed Dipole Antenna, Field Day Inverted L, Miniature CI-V for Icom Radios, A Mobile Antenna Mount for T-Hunting,
(01/01/1970 @ 01:00)
ICOM IC-R20  View ?

IC-R20 by Icom. Wideband Receiver Professional radioreceiver, allow double receiver, from HF to Microwave, digital recorde, DTCS, Memories and 11 hours countinuous reception.
(01/01/1970 @ 01:00)
Band Pass Filters for HF Transceivers  View ?

Technical Reference/Filters
If your multiple transceiver station is suffering of intrastation interference, this handy and inexpensive band pass filters and help you. QST article Sept 1988
(01/01/1970 @ 01:00)
The M0CVO HW-42HP OCF Antenna  View ?

A multi-band off centre fed dipole, designed to operate on all bands from 40m (7MHz) to 6m (50MHz). Author claims it will operate on 40, 30, 20, 17, 15, 12 and 10m without an ATU (SWR <3:1) plus 6m with an ATU.
(01/01/1970 @ 01:00)
160m 80m Vertical Antenna  View ?

A dual band vertical antenna for 160 and 80 meters band, on a 18m spiderbeam fiberglass pole. This vertical is a good compromise when you want good performance on these two low ham bands and don't have the space to install two seperate antennas.

... / ...

(01/01/1970 @ 01:00)
80m Shortened Dipole Antenna  View ?

This antenna just requires about 24m of free space instead of 41m that a normal half wave 80m antenna needs to hang up. The so called loaded dipole uses a coil in every dipole arm to electrically lengthen the mechanical too short dipole arms. Every coil has an inductivity of 120 microHenry.

... / ...

(01/01/1970 @ 01:00)
80m-40m Loaded Dipole  View ?

A dual band dipole antenna for 40 and 80 meters band. Total lenght of 26 meters, foreseen two coils at aprox 11 meters distance from center feed.
(01/01/1970 @ 01:00)
GW4ARC Rhyl and District Amateur Radio Club  View ?

Ham Radio/Clubs/Europe/UK/Wales
Website of the Rhyl & District Amateur Radio Club, a friendly and dedicated radio club located in Rhyl on the North Wales coast.
(01/01/1970 @ 01:00)
County-Hunting Mapper  View ?

DX Resources/County Hunting
A unique, easy-to-use Amateur Radio program for creating County, State, Section and Grid Locator outline maps of North America that can be filled by Hand, from a Contest Logger UDP Feed, or from Imported ADIF or Cabrillo Logs.

... / ...

(01/01/1970 @ 01:00)
USA Amateur Radio Repeaters  View ?

Operating Modes/Repeaters/USA
USA Amateur Radio Repeaters Directory, 2m and 70cm bands.
(01/01/1970 @ 01:00)
Aerial Printing Concepts  View ?

Shopping and Services/QSL Printing
Affordable full color QSL card printing. Premium quality offset printing with gloss, spot UV, and foil coatings.
(01/01/1970 @ 01:00)
80m Inverted-L Base-loaded for 160m  View ?

80m Inverted-L Antenna, Base-loaded for 160m antenna. This antenna is not a good DX antenna however within small garden where true DX antennas would be impossible it has performed very well.
(01/01/1970 @ 01:00)

Last import : 02/12/2022 @ 12:07

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