The “new” country of Azawad was “born” per a signed accord between the Tuareg people of the MNLA (Movement for the Liberation of Azawad) and the jihadists of Ansar Dine. The political reasons leading to the founding of the two so diverse movements are still somewhat unclear, with the Tuareg […]
Monthly Archives: June 2012
16 posts
Thirty years have passed since 1A made its way onto the DXCC list. And an activation by an International team looks to celebrate the uniqueness of this event. So, from the 1st to the 4th July 2012, we will listen them on the air as 1A0C from Santa Maria del […]
The CW Operators’ Club announces its CW Academy, a program aimed at increasing the fun of using CW in the world of Ham Radio. The program addresses all levels of enthusiasts; from those aspiring to become licensed operators with a desire to learn Morse Code, all the way to veteran […]
It is japanese pronunciation of A1 CLUB! Homophone Kanji-character for ei-wan ku-ra-bu is selected by Hiro, JA1HHF. He selected Kanji-character carefully including profound meaning. He said that CW enthusiasts gathered in our club have various talents on CW operation. Someone runs Morsecode very fast by his sharp arm, and someone […]
I’ve been getting a lot of e-mail asking about “the published article” on the Pennant and Flag receiving antennas. I get the impression that a rumor has been circulated that an article has be published about the Pennant. Rather than answer each individual query, a posting on the Topband reflector […]
CALLSIGN PERIOD ENTITY NOT VALID FOR: REMARKS 0S0C JUL’94 PRINC. SEBORGA DXCC Not a DXCC Entity 0S1A JUL’94 PRINC. SEBORGA DXCC Not a DXCC Entity 1A0KM DEC’95 S.M.O.M. DXCC Only on 10 meters 1A0KM/IBYO DXCC Shipboard operation 1A6SBO Bishop Rock (CA) DXCC Unauthorized operation (1967) 1B (ALL) […]
Many years ago I was experimenting with a two element 40 meter phased array. It was composed of two quarter wavelength vertical radiators with moderately good ground systems, spaced a half wavelength apart, in my back yard. The radiators and ground systems were, as close as I could make them, […]
Is it permissable to have both elevated and ground radials? Yes. But with only a few radials (less than about 8 radials per antenna) any radials contacting or very near earth will reduce system efficiency. With less than about 8 elevated radials, a ground rod connected at the common junction […]
Hams living within cities and urban lots are often unable to erect a tower with a regular Yagi or Quad. Experiments with wires may require a lot of space so many Hams “ending” with a multiband vertical antenna. Regardless of wide availability of many types of such antennas the answer […]
The antenna changeover relay on most linear amplifiers is rather slow, and when the transceiver keys it, there is an RF spark because the RF power appears before the relay has fully changed over. Many modern transceivers provide a delay of 10 – 15 ms between key-down – or pressing […]