LEM158 DXpedition
Equipment
December 1-8, 2001
by Mika
Mäkeläinen
Borrowing a couple
of receivers from friends, we had a total of four
JRC NRD-535s and one JRC NRD-545 DSP. Additional
equipment included amplifiers, antenna tuners and
antenna switchboards. Both had a switchboard designed
by Roland Sandberg to select the antennae and, if
necessary, to split a particular antenna between
two receivers. An "active splitter" was
used to divide all the essential antennae between
the listeners.
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Mika's NRD-545 DSP |
This season the Lemmenjoki
cabin was equipped with 12 beverage (terminated)
or longwire (not terminated) antennae. Most of the
antennae needed to be split between both users when
conditions focused on a particular region of interest.
For example, there was only one good antenna for
the U.S. East Coast, one for the Iberian Peninsula,
one for both the Southern and Northern parts of
South America and so on. Since our antenna splitters
were able to handle a maximum of nine antennae,
that was the amount we used. Occasionally, some
of the regular antennae were replaced by additional
antennae towards North America, when conditions
to that area were exceptionally good.
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Jim's NRD-535 with a switchboard
and an amplifier |
Each antenna was 0.8 - 1.1 kilometers
(0.5 - 0.7 miles) in length. Because of the reindeer,
antennae needed to be 3-4 meters above the ground.
Wherever trees are not available, poles have been
erected. This time antennae were pointed at the
following areas:
- Iberian Peninsula (230 degrees)
- Southern part of South America (Brazil, Uruguay,
Argentina, Chile) and the United Kingdom (245 degrees)
- Northern part of South America (Venezuela, Columbia,
Ecuador) and the Caribbean (275 degrees)
- Eastern Coast of North America and Central America
(290 degrees)
- Midwest (297 and 312 degrees)
- Rocky Mountains (320 degrees)
- West Coast of North America (342 degrees)
- north towards Alaska and Hawaii (0 degrees)
- Far East (Japan, Koreas) at direction 55 degrees
- East Asia (China, Taiwan, the Philippines) at
70 degrees
Not much new on the recording
front; Mika relied mostly on minidiscs (Sony MDS-JE520
deck and a portable Sony MZ-R35), but had also a
Pioneer CT-S330 cassette deck. Jim used portable
cassette decks.
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