Τετάρτη, 25 Ιανουαρίου 2017

Understanding Single Sideband (SSB)

A new Technician Class operator is likely to get started in ham radio with VHF and UHF phone operations using FM simplex channels and repeaters. The channelized world of VHF/UHF FM offers relatively simplicity of operations and is a great way to get on the air immediately upon earning the Technician Class license. However, after mastering repeaters and gaining comfort with on-air FM phone QSOs, the next step for many hams is the more challenging domain of single sideband (SSB) phone operations.

INFO: http://www.hamradioschool.com/understanding-single-sideband-ssb-2/

Δευτέρα, 9 Ιανουαρίου 2017

IARUMS Region 1 (IARU Monitoring System)

IARU Monitoring System

The IARU Monitoring System is a worldwide service authorized by the IARU Administrative Council. It is the obligation of the IARU and its member-societies to defend the interests of the Amateur Services as stated in the IARU Constitution. The IARU Monitoring System is served by many dedicated volunteers who have served effectively for many years. Each of the three IARU regional organizations selects and appoints an IARU MS Regional Coordinator. The IARU Monitoring System operations are coordinated by the Monitoring System Committee (MSC).

One of the primary objectives of the IARU Monitoring System is the identification and initiation of steps leading to the removal from amateur bands of radio signals of non-amateur stations causing harmful interference to the amateur satellite services contrary to International Telecommunications Union and national radio regulations. Typical intruders include shortwave broadcasters, Over the Horizon Radar, CODAR, unlicensed operators on the bands including taxicabs on 10 meters and fishermen on various bands, military RTTY and beacons, fishnet beacons and various types of jamming signals.

Interested parties who want to report intruders on the amateur bands are encouraged to send their observations to the Regional Coordinators and include the following information: your identification (organization-call sign), the frequency, time in UTC, the day, month, any possible identification of the signal, mode, signal strength, direction bearing and any remarks that help describe the signal. In addition, a very beneficial piece of information is a recording of the signal preferably in the form of a wav file that may be e-mailed for quick evaluation.


                                         Info: https://www.iarums-r1.org/

Κυριακή, 6 Νοεμβρίου 2016

New Russian Arctic Over-the-Horizon Radars

New Russian Arctic Over-the-Horizon Radars Set for 2017 Startup

According to media accounts, more long-range, new over-the-horizon (OTH) radars that can identify aerial and sea targets hundreds of miles away are scheduled to begin operation next year in the Russian Arctic. It’s doubtful, however, that the news heralds the return of interference on the level of that generated by the so-called “Russian Woodpecker” OTH radar, which plagued Amateur Radio HF bands in the 1970s and 1980s.