WB6FZH/KH6-QRP Operating Conditions from Hawaii
QRP Operating Conditions in Hawaii
QRP is More Difficult Out Here!
Operating Conditions /KH6: What it is like.. Frequently Updated!
During the contests, where my power level is about 4.5watts out (maximum)
I wait on 20 meters, around 14060 khz for signals to be audible.
They pop up above the noise for a moment, and then are gone, it
sometimes it that way for hours. Then enough signals to form
calls, come through, and I call, and I call. Sometimes the signals
jump out of the noise, and I get excited, perhaps mine is
doing the same thing at the other end? Then, it happens, One
contact after another...and then usually the end of the contest
just as the band is opening for KH6.
Often, when the band is poor for QRP, I go to QRO...10-20+ watts and
often trade good reports to these same places that do not copy my
QRP level signals.
These days 15 meters is open from time to time and QRP signals do very
well. I have even had QRP QSOs when we were the only two stations copied
on the band. My HW-8 with 1.5 watts output has made many contacts from
the Home QTH and Beach Parks along the Windward Coast of Oahu.
10 meters is open less frequently, but monitored with great anticipation
of the improved propagation in the future. During the 1998 WW DX Contest
some 5 watt SSB Exchanges were made.
Sometimes I take the HW-8 or Homebrew Xcvr and a portable antenna out to
a beachpark and try and make a few contacts on 20/15 & 10. I suppose I
should take a gag picture with me on the beach with the J-37 WW2 telegraph
key on my leg and some tropical drink with an umbrella and fruit in the
glass with girls doing the hula in the background or something..
7mhz is pretty predictable, the late afternoon to early evening and early
morning the grayline brings new signals to me. I can hear the signals start
come in around 7025- 7040 khz, many with /QRP in their calls. I call, but
most often find that I am down in the noise on the other end. Lots of QRM
in the Continental US masks my signal. However, that is nothing compared to
the SW broadcast stations that are all over the 40 meter band out here.
There is even a special part of the band for voice out here..7075-7100khz.
I rarely operate there, and it is often full of digital intruders. The
International Broadcast Stations are every few Khz, and if there is an open
spot, it is filled with a SSB signal from a foreign phone band, or pirate
operator. Eventually, the band stretches out as night falls and signals
get stronger for a short time. I make a few CW contacts, and then
recognize when the band changing. I can still hear signals, but my
experience now tells me to wait. I usually must wait several hours until
it is very late at night (or early in the morning). In the meantime
often stations throughout the Pacific can be contacted, and ocassionally
some pleasant suprises from elsewhere in the world.
I often tune to 3.5 and 1.8 in search of a CW contact, but with the
exception of the contests, when stations listen closer, and some fire-up
their big "DX" antennas, pointed out this way. it is hard to make QRP
contacts on these lower bands. On 3.5/1.8 I try with 10/20W, but often
resort to 100W to make contacts. If I had room for a larger antenna, I am
sure I could do more with low power on these bands.
In December 1997, I tried very hard to make contacts on 160 Meters, the ARRL
160 Contest presented a great opportunity. In the
1997 ARRL 160 Mtr CW
Contest, I used a 1944 National HRO-W Receiver with Plug-in Coils
and a 1944 Collins TCS-12 CW/AM Transmitter at 4.75 watts out to the
Butternut Vertical. It was difficult, after almost 10 hours, I finally did
make 2 exchanges, Alaska and Nevada. In 1998 I hope to do more with 80
meters, some QRP SSB, CW, and perhaps AM. There is some local interest
in building some gear, and that will bring new stations active on QRPs.
Classic AM.
I also try to make QRP Satellite CW/SSB contacts on RS-12 satellite when
it is configured to take my 5W signal transmitted on 15mtrs and retransmit
it on 10mtrs. The RS-12 satellite beacon transmits CW on 29.408mhz. Check into
Satellite Operation, it is a real challenge!
My antenna system is primarily a couple of verticals, a Butternut HF-5V
with the 160 coil, with it's radials into the Bay itself.It probably
does not do much electronically, but it sounds good and makes me feel better
. The other vertical, an R5 is at the other extreme of the small lot,
near the street. The G5RV is in the middle of the lot on one side, hanging
25' up in a small Palm Tree. It works well too, especially for local
inter-island HF communications, or to extend a QSO as the band is changing
and the vertical is loosing the signal. It also is used for RS-Satellite
downlink reception.
I am working on various temporary antenna designs for use in
contests, and for testing. None of the small palm trees is in the
right place, and I am above the more desiriable low-profile antenna
level now.
For portable operation, a portable vertical is used on 20, 15 & 10 meters
with a counterpoise. Various 1/2 wave longwires, dipoles and a G5RV
are used aswell.
All equipment is transported in plastic packing boxes, and plastic covers
are at the ready to protect the station from the frequent rain showers.
Power for portable operation is provided by a 6 ampere hour Gell Cell, or
a 12 volt Deep Cycle Battery. A small solar panel is often transported to
the portable location, to keep the gell cell charging from the sun.
Continiously Modified Article/Greg
Last Updated: June 27, 1998
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