Mark,
I did not see any response to your bandplan proposal.
Some thoughts that I have:
- I would have a digital area on each band (including WARC bands) for
suggested mixed mode activity based upon FCC mode allowance.
- Because we have gravitated toward the bottom of the bands with CW and
Mark,
I did not see any response to your bandplan proposal.
Some thoughts that I have:
- I would have a digital area on each band (including WARC bands) for
suggested mixed mode activity based upon FCC mode allowance.
- Because we have gravitated toward the bottom of the bands with CW and
Rick,
I have been working on such a plan. This plan keeps things organized
the way they are now, but adds the multimedia playground 25kHz below
the top of each band. Let me go through a summary, then you can look
at the chart, and comment.
160 meters, no change from what it is now.
80
It appears to me that the first mistake is leaving 160 how it is today. I
have been saying for 20 years that it is just plain nuts to mix SSB and CW
across the band. There is no reason that the SSB signals (and other
wideband stuff) cant be put up at the top half of the band, much like most
of
I would rather use zip, rar or gzip. Maybe, bz2 for an extra squeeze.
.doc format is VERY redundant and has a minimum size around 20 K,
even if you type a pair of characters.
Possibly .odt is a good move. Even then, I would compress it.
Even using plain text, compression and uuencoding did
Currently, the default compressed image format for amateur radio digital
SSTV images has been jpeg2000 (file extension of jp2).
Both jpeg2000 and a similar ATT developed djvu system are wavelet type
compression programs. Both are MRC (Mixed Raster Content) based which
means that the document
The FCC rules provide the following definitions for fax:
Image. Facsimile and television emissions having designators with
A, C, D, F, G, H, J or R as the first symbol; 1, 2 or 3 as the second
symbol; C or F as the third symbol; and emissions having B as the
first symbol; 7, 8
The FCC rules provide the following definitions for fax:
Image. Facsimile and television emissions having designators with
A, C, D, F, G, H, J or R as the first symbol; 1, 2 or 3 as the second
symbol; C or F as the third symbol; and emissions having B as the
first symbol; 7, 8
I think you are correct. Text emissions have some sort of code which
indicates the character to be transmitted. Such codes are Morse,
Baudot, ASCII, and Varicode to name a few. Digital facsimile is
pixilated and the pixel's intensity is represented numerically as in
bitmap images. Pixels
I ran a few tests to see just how long it really takes for sending a
document via a digital data program such as WinDRM. If you had a good
path and probably at least a 10 db S/N ratio, the transmission time for
my test document of 29 K was only about two minutes. The test file is a
two page
Now if you convert this .doc file into a moderately compressed (90%) pdf
file, it grows to 67 K, so that is probably not a good direction.
A possible answer might be to move toward the coming standardized file
structure already available in FOSS software such as Open Office that
uses the
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