KL7UW
HF TOPICS
Update for March - 2010
An Elecraft K3/10 10w HF transceiver has been ordered that will replace using the FT-847
on HF bands. A CCI 300w HF solid-state linear amplifier kit will be built. It should run
at 200w with the drive available from the K3/10. Hopefully, the CCI linear will also
operate on 6m (with some modification). The CCI linear will also drive the Swan
linear for running 600w 160m - 20m.
I operate using either an 80-40m dipole or the TH3-mk4 Tri-band yagi (20-15-10m).
On November 25, 2008 the second 50-foot Tower was raised supporting my Tri-band yagi and
the 80-40m inverted vee dipole and a 30m sloper diplole.
I occasionally operate on 20m PSK-31 and check into the 14.345 MHz weekend EME Net at
1700 utc. On 80m I occasionally check into Nets on 3.933 MHz:
- the Motley Group on week nights at 2100 local time.
- the Swap-N-Shop Net on Saturday mornings at 1000 local time.
I have a Swan Mk-III commercial linear that covers 2-16 MHz using a pair of 3-400z for
1000w input on SSB. The Swan HV power supply does double-duty providing power for
my 50 and 144 MHz amplifiers.
Examining the layout of towers at the new QTH, they are well situated to support a
130 foot horizontal wire at 40-50 feet above ground. This provides the opportunity to
put up an 80 meter Half-Square antenna beaming toward 145 degrees (West Coast USA) and
325 degrees to Asia.
The HF Tower can support the inverted vee at right angles to the Half-square. More
detail about the HF Tower can be seen on the Six Meter Page.
Photos of tower project:
Photo-1, Photo-2, Photo-3, Photo-4, Photo-5, Photo-6, Photo-7, Photo-8, Photo-9
New J-Pole for 6m/10m Installed
A combination J-Pole vertical antenna has been set up to permit working 6m FM stations and on 10m FM.
Go to the J-Pole page
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