Sorry, but I don't agree, Hans. The current arrangement of one FT8 dial
frequency per band will not survive the first big DXpedition or,
perhaps, even Field Day. You'll need to know who's where, just as now.
73, Pete N4ZR
Check out the Reverse Beacon Network
at <http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.
On 6/12/2018 12:32 PM, Radio KØHB kzerohb@gmail.com [DX-IS] wrote:
[Attachment(s) <#TopText> from =?utf-8?Q?Radio_K=C3=98HB?= included
below]
Since virtually all FT8 operations are clustered into their own 3kHz
smoking-pit on each band, the mode requires no “searching around the
band” for individual signals. Essentially the entire workable “band”
of FT8 signals is visible at your own station without an outside feed.
That, coupled with the very detailed graphic presentations at sites
like pskreporter.info and pskreporter.de, seems to make a traditional
CW-style spotting network for of low value to an FT8 operator. In
fact, I would posit that the traditional Spotting/RBN infrastructure
is really rather quaint and unsophisticated when compared to the
information available at pskreporter.info.
73, de Hans, KØHB
"Just a boy and his radio"™
*From: *N4ZR n4zr@comcast.net [DX-IS] <mailto:DX-IS@yahoogroups.com>
*Sent: *Tuesday, June 12, 2018 1:35 PM
*To: *RBN-OPS@groups.io <mailto:RBN-OPS@groups.io>;
sysops@dxcluster.info <mailto:sysops@dxcluster.info>; WW1ME@arrl.org
<mailto:WW1ME@arrl.org>; DX-IS@yahoogroups.com
<mailto:DX-IS@yahoogroups.com>; reflector cq-contest
<mailto:CQ-Contest@Contesting.COM>
*Subject: *[DX-IS] RBN Announcement on FT8 Spotting
As some may be aware, we’ve been debating for some time about whether
the RBN should handle FT8 spots. A few weeks, ago, several prolific
RBN nodes began spotting FT8 signals, using the combination of WSJT-X
and an unreleased Aggregator, version 5. The purpose of this limited
Alpha test was to get a feel for the load and other implications of
carrying FT8 spots on the RBN; it has been very revealing.
The most striking characteristic of FT8 spots is their sheer
quantity. Here are some weekday statistics from one of the US testers:
*23-May*
CW 4294 14%
RTTY 69 0.22%
FT8 26318 86%
Total 30681
*24-May*
CW 4370 13%
RTTY 46 0.14%
FT8 29298 87%
Total 33714
Whether due to the startling popularity of the new mode, or to the
ability to spot stations at 22 dB below the noise level, it seems
obvious that adding FT8 spots to our spot flow could have a huge
impact on the infrastructure of the RBN. These numbers suggest that if
only 20-30 RBN nodes added FT8 spots, those spots could outnumber the
total CW and RTTY spots being delivered by the 140-150 nodes currently
active on the network, doubling the total required throughput.
We frankly don’t know whether the RBN servers will be up to the task,
so we decided we had better find out before the fall contest season is
upon us. Accordingly, we are taking the following steps on a Beta
test basis:
1.Effective immediately, the RBN’s current spot feed
(telnet,reversebeacon.net port 7000) will be repurposed to handle only
CW and RTTY spots. telnet.reversebeacon.net port 7001 will be set up
for FT8 spots only.
2.Operators of “retail” DX clusters are encouraged to offer the option
of RBN spots with and without FT8 spots, as they now often give users
a choice between spot streams with and without “Skimmer” spots, and to
advertise when they begin to carry FT8 spots
3.A Beta test version of Aggregator Version 5 that can handle FT8
spots received from WSJT-X will be made available on the RBN web site,
along with instructions on how RBN node-ops can configure their nodes
to spot FT8 on one or multiple bands. Note, please, that doing so
will not interfere with your ability to continue spotting CW and RTTY.
We will closely monitor how the RBN servers handle this new load, as
more and more nodes begin sending FT8 spots. We also reserve the
right to take steps as necessary to protect the core mission of the
RBN, including shutting off the FT8 stream on major CW and RTTY
contest weekends or, in an extreme case, discontinuing spotting of FT8
altogether. Even in a worst case scenario, FT8 spots will continue to
be carried by PSKReporter.
We hope we’re not doing this in a vacuum. The RBN team has been
collecting the views of contesters and DXers on this, and we think
that we’re headed in the right direction. Feel free to let us know
what you think of this experiment.
73,
The RBN Team (KM3T, N4ZR, PY1NB, SV3SJ, W3OA)
__._,_.___
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