Tests in Chile 2006
16th February 2006 / 18.2.06
/February antenna tests were performed in Chile.
The previous Chile tests in September 05 in Chile were not successful,
new tests were planned.
The tests were performed on two bands: 20m and 40m.
The 40m antenna was the first one built now, the version with the top
The installation was in Maipu, suburb of Santiago, on a 2 floor
clay stile roofing.
Result: The antenna could be adjusted as in Switzerland to SWR 1:1 and
gave excellent commnication results.
At the beginnig with a bad surprise: The full band with broadband QRM,
level which made receiption nearly impossible.
The cause was a switched power supply of a DVD player, which first had
be denoised. Here the procedure to denoise
this type of QRM.
Then followed the construction of the 20m antenna.
Also this one worked perfectly from the beginning.
With this one I had contacts from Iquique (1500 km in the north) to
fuego (2500 south), to Argentina, Buenos Aires, north in Argentina to
(LU9OY = Asusena), where I received during 3 following days the
report in a round a several LU stations.
Unfortunately there was no nearby local station to obtain comparitive
Then came the trip 1000 km to the south, Enterlagos (near Osorno),
installed a 2 ele Quad 18 m above ground, and the "new hf antenna" for
on the roof, 8 m above ground.
On the 6th of February the new antenna was QRV for the first tests.
The quad was still in construction. TX = TS-50, 100 W PEP.
6.2.06 in Entrelagos, 100 W PEP, 14 MHz, Antenna = RoomCap
Time(CE) hrd /
Conception 400km N Buenos Aires
58-9 Alejandro Jujui
The following days I was QRV from 0700 to 0800 (CE) on 20m, as I
expected at this time
Australia and Europe.
On the 7th Febr. first contact with SP4R in Balistok with 55 / 55
On the 8th Febr. VK4WT in Ravenshoe with 57 / 57
On the 11th Febr.
with 57 / 57
VK4JAO Arno nr.Brisbane with 55 / 55
UR5HAC Jura, Ukraine with 56 / 57
Peter Island Expedition: Call
From February 8 to 18th, the
DX-Expedition Peter Island was qrv.
The station was always called
by many stations from all over the world.
On February 12th I called
short with the new antenna and 100 W:
At the second call the
station replied and confirmed the contact.
On the 12th Febr. the Quad was running and comparisons between the quad
(18 m high)
and the "new one" at 8m height could begin.
During QSOs with Germany, Switzerland and Australia comparitive tests
could be performed.
Here it was noted, that the quad outperformed the "new" as expected.
I also had a linear amplifier (TL-922), and the result was, that the
quad compared with the "new"
was like Quad with/without linear, or in other words, quad without
liner was equal to
"new" with linear.
Without linear, the power was 100 W PEP.
With linear, the power was 1200 W PEP.
Unfortunately, the conditions became so bad, that from the 13th on, the
signals from Europe
dropped about 3 - 4 S points, as compared to the days from 7th to 11th
Working with quad and 1.2 KW I was just audible, so that a real
comparison between the
2 antennas was no longer possible.
On February 15th I had m last QSOs, then I had to remove my antennas to
contine my trip.
Picture Entrelagos: Right : Quad; on the roof (right) = 20m RoomCap
antenna, left (big) = 2m antenna