AMSAT-Brazil is organizing a reverse beacon FT8 QRPp experiment/contest via the QO-100 NB transponder.
https://amsat-uk.org/2020/03/16/amsat-br-qo-100-ft8/
Participate!!
73, Edson PY2SDR
AMSAT-BR QO-100 FT8 QRPp Experiment
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Hallo ...
i will try to let run my rx monitor on FT4 and FT8...
received spots are sent with 23cm frequency marking (so not all spotted in PSK31reporter
LINK last 12hours...
https://pskreporter.info/pskma…band=480000000-1400000000Additional NOTE
some station are marked with unknown frequency in PSK 31 reporter
so they can not be seen with 23cm filter
maybe it is time to open PSK31reporter to 3cm (10.368/10.489 MHz)
73 de dg0opk
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Hallo ...
i will try to let run my rx monitor on FT4 and FT8...
received spots are sent with 23cm frequency marking (so not all spotted in PSK31reporter
LINK last 12hours...
https://pskreporter.info/pskma…band=480000000-1400000000Additional NOTE
some station are marked with unknown frequency in PSK 31 reporter
so they can not be seen with 23cm filter
maybe it is time to open PSK31reporter to 3cm (10.368/10.489 MHz)
73 de dg0opk
The experiment is a reverse beacon (receive only).
73, Edson PY2SDR
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@ PY2SDR
YES ...RECEIVE ONLY ...
spotting to PSK31reporter
nothing to do (for me)
73 de dg0opk
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DB2OS
Moved the thread from forum General Information to forum NB Transponder. -
Ranking as of today...
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PY1SAN -20 in JN61FQ
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Hallo all...
here i will upload my RX Data from 21mach 2020 FT8 and FT4 monitoring on my 120cm Offset DISH with
TWIN LNB (TCXO mod by DG0OPK), AIRSPY Mini, SDR CONSOLE 3.0.21 with BEACON LOCKING for drift correction and virtual audio cable to 2 instances of WSJTX (FT8 and FT4)
NOTE:
WSJTX frequency is set to 1296.6 MHz for uploading to PSK31reporter ... (but not all spots can be seen because PSK31reporter dont support 3cm until now)
73 de dg0opk
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Current ranking...
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Hallo all...
here my FT8 & FT4 receiving results from yesterday....
sometimes running PLUTOSDR (FT8) on 85cm in parallel to the AirspMini at 120cm (FT4+FT8)
setup: TWIN LNB with internal TCXO + SDR Console 3.0.21 with software drift correction + virtual Audio to WSJTX
73 de dg0opk
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Hello dear OMs,
I have also joined in and would like to share what I use.
Yaesu FT991 - DXPatrol - 2W PA.
As damping I use 10m RG213 and 6m RG58.
Various damping elements from -1 to -10dB on a
5.5 windings self-built Helix antenna on a 1.2m Offsetdish.
RX Octagon Quad Mod 25Mhz TCXO ext. Lo.
RTL SDR V3 and SDR Console and WJST-X
-22dB I have done and let's see if I can still create the -23dB
Enjoy everyone with the experiment.
73's de Enrico DO3ASE
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Hi Enrico
You beat me by 1dB.... REVENGE! HI
73s
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Maybe it would be better to look for FT-8 packets not with "CQ" but some other text, eg. "RB" or so.
There are OMs who answer to those CQ calls and are getting no answer..
73s DB8TF
The problem is that JT modes like FT8 can only support a very small set of structured messages (CQ in one of them) or up to 13 alphanumeric characters. Something like RB PY2SDR GG56 would not be possible.
I have been thinking about using only the callsign (6 characters max) and a six-character locator. For example PY2SDR GG56TV. A different frequency could be used so that the experiment would not interfere with FT8 QSOs. What do people think?
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I think both are good!
There is still enough space in the NB-Digi.
73´s DO3ASE
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Hi Enrico
You beat me by 1dB.... REVENGE! HI
73s
We're right up now. Let's see if we're still cracking the -23dB.
Will be difficult!
Have fun DB8TF
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Hello guys, will try my luck as well ! This is where FTx makes sense.
Trying to slowly decrease pwr level step by step and see how far I can go.
I'm however not familiar with FT8, and wonder why despite my message is "RB F5MFO JN19", the Reverse Beacon reports "CQ F5MFO JN19" ... Any clue ?
Have fun.
73, Pat
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Hello guys, will try my luck as well ! This is where FTx makes sense.
Trying to slowly decrease pwr level step by step and see how far I can go.
I'm however not familiar with FT8, and wonder why despite my message is "RB F5MFO JN19", the Reverse Beacon reports "CQ F5MFO JN19" ... Any clue ?
Have fun.
73, Pat
Hello Pat,
The RB receive station does not change the received message. It only filters out non CQ messages. It seems that you station is transmitting CQ.
73, Edson PY2SDR
