Example.
A few months ago a group of ham radio operators went into the central Pacific
Ocean to an island named Swain's Island [ATOLL]. Swain's Island had just been
approved by the Ham radio Certificate Powers {American Radio relay League] as a
separate DX [distance] entity and as such it qualifies as an entry into the
various DX awards [DXCC being the prime award}. [DXCC means you have submitted
written proof of confirmed contacts with other ham radio operators in 100 or
more other countries [or entities].
The Hams operated from this rare location for about a week and then returned
home. There is no-one there today!
Let me digress into another of your questions: i.e. What is SSB?
Fifty years ago ham radio, and still today the AM broadcast band, transmitted
three components to put a signal on the air. First, was the carrier that set the
dial frequency e.g. 3950 KHz. The carrier contains NO information, it just sets
the dial frequency. Then voice audio was added to the carrier. This addition
[modulation] produced two audio signals around the carrier. One above the
carrier, the other below the carrier. So, the resulting signal had the carrier
and one upper side band and one lower sideband. The carrier contained 2X the
power of the audio. And the audio was redundant with 1/2 the audio power in each
sideband. The resulting signal can be described as Double Sideband Plus Carrier.
In the 50s and early 60s design techniques were incorporated to suppress the
carrier, which contained NO information; and to eliminate one of the redundant
sidebands. The resulting signal is Single Sideband [one audio channel] with
suppressed carrier. [SSB = Single Side Band]
wrote:
On Wed, 30 Aug 2006 18:10:03 +0200 (CEST), Anonymous via the
Cypherpunks Tonga Remailer wrote:
Dave Said:
As long a 'Rare DX' uses CW, CW will live and thrive in the DX community.
I've seen this DX term here and there, but, can't seem to find out what it stand for, or what a DX community
is. Can you post some info or links on what this is/involves?
well even if you are pulling our chain it is better than a lot of the
stuff posted
DX isseeking out Distant contacts for an eXchange of very basic data
and ocollecting these conacts and esp proof of these conacts for
various awadrd the DX comunity obviously is those into chasing down
these DX contacts
Thanks,
noonespecial
http://kb9rqz.blogspot.com/