[Coco] COCO 3 for LowFER transmitter?
John E. Malmberg
wb8tyw at qsl.net
Wed Dec 10 22:00:00 EST 2003
KnudsenMJ at aol.com wrote:
>
> Use the cassette relay to key the CW carrier. If you run the carrier
> continuous and key the audio via the DAC, you'll be output MCW, which I believe the
> FCC has banned from every band (marine and Ham) for a long time, as a waste of
> spectrum space.
> Though the Lowfer band rules are probably different.
The last time I looked at the LowFER rules, it was 1 Watt input power
into a 50 foot antenna, including the feedline.
Frequency is 160 to 190 Khz. Modulation must be completely contained in
the band.
With perfect conditions, a maximum range of 100 Miles was supposed be
achievable.
Modulating an AM tone for CW will cut your effective range considerably
from running straight CW.
If I were doing a Lowfer project, I would build a remotely controlled
transmitter in a weather proof container and put it outside at the end
of what ever antenna that I had rigged up. Having a good ground plane
is essential.
-John
wb8tyw at qsl.net
Personal Opinion Only
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