[amsat-bb] Re: RAFT PSK-31 is enabled

Jeff Griffin kb2m at comcast.net
Wed Jan 31 18:10:56 PST 2007 

  I will be on the 349z and 524z passes tonight. I will attempt to bring up 
the PSK31 transponder and then call/copy my  PSK31 CQ's , any  RX 
reports(send to WB4APR),  or TX (someone to talk to)  welcome...

See you in Orlando....
73 Jeff kb2m

----- Original Message ----- 
From: "Robert Bruninga" <bruninga at usna.edu>
To: "'Jeff Griffin'" <kb2m at comcast.net>
Cc: <bruninga at usna.edu>
Sent: Wednesday, January 31, 2007 7:32 PM
Subject: RE: [amsat-bb] Re: RAFT PSK-31 is enabled


> Jeff,
> Thanks.
> I need positive confirmatino from someone I trust that they DID
> uplink at the right time and with PSK-31 mode on and DID or DID
> not hear it.  Until I have positive proof from a trusted test, I
> cannot declare the PSK-31 operational or inoperational.  Thanks
> Bob
>
>
>> -----Original Message-----
>> From: Jeff Griffin [mailto:kb2m at comcast.net]
>> Sent: Tuesday, January 30, 2007 2:32 PM
>> To: bruninga at usna.edu
>> Subject: RE: [amsat-bb] Re: RAFT PSK-31 is enabled
>>
>> Good afternoon Bob. I will try to get on tonite, with my KW.
>> I will email
>> you anything I capture on the d/l...
>>
>> 73 Jeff kb2m
>>
>> -----Original Message-----
>> From: amsat-bb-bounces at amsat.org
> [mailto:amsat-bb-bounces at amsat.org]On
>> Behalf Of Robert Bruninga
>> Sent: Tuesday, January 30, 2007 1:18 PM
>> To: bruninga at usna.edu; amsat-bb at amsat.org
>> Subject: [amsat-bb] Re: RAFT PSK-31 is enabled
>>
>>
>> During last-night's East Coast pass at midnight, I  heard no
> one
>> on the uplink.
>>
>> We will keep RAFT in this CW/PSK-31 10m up/ 2mFM down mode
>> through Friday.  If no one is heard, we will go back to the
>> packet-to-voice transponder.  We would really appreciate some
>> big guns to try out their high power 10m CW or PSK-31
>> transmitters during one of these late-evening nearly overhead
>> passes.  Anyone with AX.25 on 2m can comand on the transponder
>> for 90 seconds at a time.
>>
>> WB4APR, Bob
>>
>> > -----Original Message-----
>> > From: Robert Bruninga [mailto:bruninga at usna.edu]
>> > Sent: Monday, January 29, 2007 5:45 PM
>> > To: 'Bob Bruninga '; amsat-bb at amsat.org
>> > Subject: RE: [amsat-bb] RAFT PSK-31 is enabled
>> >
>> > RAFT PSK-31 passes are now beginning to occur around
> midnight
>> > in the northern heisphere.  Analysis shows RAFT didn't get
>> > above 40 C over the weekend when the PSK-31 transponder was
>> on.
>> >
>> > Although the 10m receiver noise is hearable in the 145.825
> FM
>> > downlink, no one has reported hearing a 10m signal yet.  So
>> > this experiment continues until we hear a big gun.  Anyone
> is
>> > authorized to bring up the tranponder as noted in the
> original
>> > post below.
>> >
>> > The one thing we do know is that RAFT is most reponsive to
>> > being brought up in the dark.  Do not even bother during the
>> > day.  Its command receiver appears to be distorted then and
>> > will not come up.
>> >
>> > Bob
>> > WB4APR
>> >
>> > > -----Original Message-----
>> > > Sent: Saturday, January 27, 2007 11:25 AM
>> > > Subject: [amsat-bb] RAFT PSK-31 is enabled
>> > >
>> > > RAFT lives!
>> > >
>> > > Throught overnight sleepless efforts, RAFT was finally
>> > > commanded into PSK-31 mode by the combined efforts of
>> > > DK3WN, PA3GUO, and PE1ITR and others.
>> > >
>> > > The problem has been that the RAFT command receiver is
>> > > deaf when the bus voltage is over 8.1 volts.  But at
>> > > night in the dark, it works OK.  SO here is how to work
>> > > RAFT PSK-31. (we have heard no signals yet, and do not
>> > > know if the HF wire antenna got deployed.  So we welcome
>> > > MAX power on the 28.120 USB PSK-31 uplink.  Listen with
>> > > FM on 145.825 downlink.  It is very weak and needs a
>> > > beam.
>> > >
>> > > Someone in the footprint needs to bring up the PSK-31
>> > > transponder with their own TNC command on 145.825
>> > > uplink.  Just send C RAFT.  This connect request packet
>> > > will activate the PSK-31 transponder for about 90
>> > > seconds.  You will not get an ACK however.
>> > >
>> > > You may TX on 28.120 USB PSK-31 with max power throughout
>> > > the pass until we find out if the HF RX is working.
>> > >
>> > > Oh, notice that the "C RAFT" probably will not work in
>> > > the daytime since the BUS voltage is above 8.1V and so
>> > > the command receiver is deaf.  But you are welcome to try.
>> > >
>> > > Good luck!
>> > > I am on slow dialup this weekend, so will have little
>> comment.
>> > >
>> > > Bob, Wb4APR
>> > > USNA RAFT command station.
>> > >
>> > > ---- Original message ----
>> > > >Date: Sat, 27 Jan 2007 12:56:52 +0100 (CET)
>> > > >From: "Rob Hardenberg" <rob at itr-datanet.com>
>> > > >Subject: Re: AW: AW: RAFT trials Jan 27 night over Europe
>>
>> > > >
>> > > >I was listening on the psk31 downlink the 435UTC pass
> with
>> > > >the psk decoder but couldn't also detect your signal. The
>> > > >2m downlink is OK with spinrate qsb between S4 and S9+.
>> > > >Its noisy with computer signals in the waterfall display,
>> > > >but the signal strenght is good for psk demodulation.
>> > > >
>> > > >I didn't try the 10m uplink yet but if its ok the I will
>> > > >try tomorrow 28/1. I use also a dipole and 100W.
>> > > >
>> > > >The 6:10UTC pass was not tracked here because of
> sleep.....
>> > > >
>> > > >!S 04:35:37 !RAFT>BEACON,SGATE/1
>> > > :T#375,081,002,036,036,107,10000000,999
>> > > >!S 04:36:38 !RAFT>BEACON,SGATE/1
>> > > :T#378,081,002,037,036,105,10000000,999
>> > > >!S 04:36:58 !RAFT>BEACON,SGATE/1
>> > > :T#379,081,002,036,035,104,10000000,999
>> > > >!S 04:37:18 !RAFT>BEACON,SGATE/1
>> > > :T#380,081,002,036,035,104,10000000,999
>> > > >!S 04:37:37 !RAFT>BEACON,SGATE/1
>> > > :T#381,080,002,037,036,103,10000000,999
>> > > >!S 04:37:47 !RAFT>BEACON,SGATE/1 :>RAFT is on 145.825  US
>> > > Naval Academy
>> > > >!S 04:37:58 !RAFT>BEACON,SGATE/1
>> > > :T#382,080,002,036,035,103,10000000,999
>> > > >!S 04:38:17 !RAFT>BEACON,SGATE/1
>> > > :T#383,081,002,036,036,102,10000000,999
>> > > >!S 04:38:37 !RAFT>BEACON,SGATE/1
>> > > :T#384,081,002,036,035,101,10000000,999
>> > > >!S 04:38:57 !RAFT>BEACON,SGATE/1
>> > > :T#385,080,002,036,035,101,10000000,999
>> > > >!S 04:40:47 !RAFT>BEACON,SGATE/1 :>RAFT is on 145.825  US
>> > > Naval Academy
>> > > >
>> > > >73 Rob PE1ITR
>> > > >
>> > > >Mike Rupprecht schreef:
>> > > >> Hi,
>> > > >>
>> > > >> 0435UTC pass:
>> > > >>
>> > > >> RAFT PSK transponder was ON for 98 seconds.
>> > > >> I could not hear my own signal. Worked with (only)
>> > > >> 100watts and dipole /vertical R6000 antenna. Downlink
>> > > >> is very noisy but we can see the spin rate.
>> > > >>
>> > > >> I think we need big guns......
>> > > >>
>> > > >> 73, Mike
>> > > >>
>> > > >> If you connect to RAFT, you will never get an answer
>> > > >> from the satellite  TNC. So it is important to
> DISCONNECT
>>
>> > > >> the own TNC.
>> > > >>
>> > > _______________________________________________
>> >
>> >
>>
>> _______________________________________________
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