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HF Propagatie


   Bezoekers online


RSS lezer - 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 1921  Kijk naar?

Long Wire Antenna for portable operations, ICOM IC-7610 review by PD9Z, TelTad Online Shop, ADALM-PLUTO SDR, DX HOLIDAY
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 1920  Kijk naar?

Build your own RF-Choke, End-Fed antenna for 17 and 12 meters, Harbach Electronics - Amateur Radio Amplifier Parts, Delta Loop DX Antenna for 40 meters band, UKW-Berichte Telecommunications, F-troop, VK6FLAB Podcasts - Foundations of Amateur Radio
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 1919  Kijk naar?

Isotron Antennas, Maria Maluca by DL4AC, G3TSO Mobile Antenna Page, Flag Database - Miniflags by Mooney, Microwave Transverters Projects
(01/01/1970 @ 01:00)
ICOM IC-R20  Kijk naar?

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)
Antenna Mast Guying for Amateur Radio Antennas  Kijk naar?

Article based on ROHN engineering specification that will guide on proper guying heights and guy lengths when guying ham radio antenna masts. It will help you determine ahead of time the proper length of guy wires and the distance from the base of the mast to the anchor points

... / ... Lees meer...

(01/01/1970 @ 01:00)
MSL - Mechanical Systems Lehmann - Telescopic Masts and Towers  Kijk naar?

Manufacturers/Towers and Accessories
Specialist for vertically adjustable supporting frameworks including telescopic masts and telescopic towers for ham radio systems, lighting systems, measurement techniques, observation systems. Located in Gnaschwitz Germany

... / ... Lees meer...

(01/01/1970 @ 01:00)
How setup the antenna tower  Kijk naar?

A multiple page article about assembling the antenna system, this section includes informations on constructing of the concrete tower base, starting from setting up correctly the foundations in relation to the antenna height.

... / ... Lees meer...

(01/01/1970 @ 01:00)
Trapped Dipole Antenna for 20-30-40m  Kijk naar?

An 20 30 40 meters trapped dipole antenna plan for sota and portable operations.
(01/01/1970 @ 01:00)
Folded dipole antennas: terminated vs un-terminated  Kijk naar?

As the name suggests, it is simply a dipole with the tips folded towards each other. In this case, a full-wave dipole. The span of a standard folded dipole is aprox 0,5 lambda
(01/01/1970 @ 01:00)
KM4NMP  Kijk naar?

Ham Radio/Blogs/USA
Web site and blog that reviews equipment, goes over safety, and display projects being built. Includes Yaesu FT-891 and Ameritron RCS-10 Review, a 555 Morse Code Practice Oscillator, and and arduino based Morse Code Practice Oscillator

... / ... Lees meer...

(01/01/1970 @ 01:00)
HF SIGNALS  Kijk naar?

Manufacturers/QRP Kits
Makers of QRP HF General Coverage Transceiver you can build. The Home of BITX transceivers, µBITX General Coverage Receiver-Transmitter. . A general coverage, 10 watts HF SSB/CW transceiver kit with features you NEED for operating ease, convenience and versatility. It works from 3 MHz to 30 MHz, with up to 10 watts on SSB and CW, with a very sensitive receiver.

... / ... Lees meer...

(01/01/1970 @ 01:00)
Vertical Antenna for 30 meters band  Kijk naar?

Homebrew 30 meter full quarter wave vertical antenna.
(01/01/1970 @ 01:00)
435 plus 1296MHz ATF54143 Pre-amplifier  Kijk naar?

Technical Reference/Preamplifiers
The prototype for this amplifier was originally designed for 70cm and was used on the 2004 3B9C Dx-pedition to Rodriguez Island for satellite and EME. It had a noise figure of 0.49dB with an associated gain of 20dB.

... / ... Lees meer...

(01/01/1970 @ 01:00)
Microwave Filter Company  Kijk naar?

Microwave Filter Company is a leader in the design, development and manufacture of high quality passive electronic filter products in the 5 Hz to 50 GHz frequency spectrum.
(01/01/1970 @ 01:00)

Laatst import : 24/06/2019 @ 00:15

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