[amsat-bb] Falconsat-3 upload problem

[Hans BX2ABT]

Up til now I have been successful in getting PacSatGroundStation (PSGS) 
to work on receive. You can go here if you want to see my setup: 
http://bx2abt.com/main/Falconsat-3 . I can hit FalconSat-3 with a 
directory request or file download request and get an immediate response 
and consequent downloads. Uploading is a different story, however. I 
have been able to get some messages uploaded, but it was more by chance. 
Right now if I want to upload I seem to get into a loop where PSGS keeps 
on sending out the same frame (I presume), then disconnects, after which 
the whole cycle starts over again.

 From the PSGS debugging info you can see that I am successful in 
logging into PFS3-12. My file gets a designated ID (1f14 in this case) 
and is ready to be received. Then it uploads what I presume is one frame 
(you can see this in Direwolf where the same chunk of data is send over 
and over again) after which possibly the reason why things don't work: 
"ER_BODY_CHECK received while uploading: 
/home/hans/PacSatGroundData/FalconSat-3/BX2ABT17.txt.out". The only 
mention of ER_BODY_CHECK I can find on the internet is that it is sent 
when the checksum on the file body fails. After that the whole sequence 
starts again, so the message never gets uploaded and out of the queue.

Does this problem lie with FalconSat-3, Direwolf or PGSG, or somewhere 
else? Where is the checksum being made? This is my first forray into 
packet radio/PacSat, so I'm not an expert (yet). I don't want to make 
any (un)educated guesses, thus any help or hints are appreciated. Cheers,

Hans
BX2ABT



This is the output (with debugging turned on) of PSGS:

--------BEGIN-------
Open ABCD:
Ready to upload file: BX2ABT17.txt.out
B: 209908947.
U>>
DEBUG 3: Open: Adding UP LINK Event: UL_CONNECT
PB: Empty..
I>>From:PFS3-12 to BX2ABT  Ctrl: 0 Type: I Cmd PF: 0 NR: 0 NS: 0  5 2 cc 
a7 fb 5c 4> SUCCESSFUL LOGIN to PFS3-12 by BX2ABT
DEBUG 3: Open: Adding UP LINK Event: From:PFS3-12 to BX2ABT  Ctrl: 0 
Type: I Cmd PF: 0 NR: 0  NS: 0  5 2 cc a7 fb 5c 4> SUCCESSFUL LOGIN to 
PFS3-12 by BX2ABT
DEBUG 3: Cmd Ok: Adding UP LINK Event: UL_REQUEST_UPLOAD
DEBUG 3: Cmd Ok: UL_CMD: From:BX2ABT to PFS3-12 Ctrl: 0 Type: I Cmd PF: 
0 NR: 0  NS: 0  8 3 14 1f 0 0 31 3 0 0 UL CMD: UPLOAD_CMD File: 1f14 
Size: 331
S>>
I>>From:PFS3-12 to BX2ABT  Ctrl: 22 Type: I Cmd PF: 0 NR: 1 NS: 1  8 4 
14 1f 0 0 31 3 0 0> Ready to receive file: 1f14 from BX2ABT  at off: 817
DEBUG 3: Waiting: Adding UP LINK Event: From:PFS3-12 to BX2ABT Ctrl: 22 
Type: I Cmd PF: 0 NR: 1  NS: 1  8 4 14 1f 0 0 31 3 0 0> Ready to receive 
file: 1f14 from BX2ABT  at off: 817
DEBUG 3: Waiting: UL_GO_RESP: From:PFS3-12 to BX2ABT  Ctrl: 22 Type: I 
Cmd PF: 0 NR: 1  NS: 1  8 4 14 1f 0 0 31 3 0 0> Ready to receive file: 
1f14 from BX2ABT  at off: 817
DEBUG 3: Waiting: GO FILE>From:PFS3-12 to BX2ABT  Ctrl: 22 Type: I Cmd 
PF: 0 NR: 1  NS: 1  8 4 14 1f 0 0 31 3 0 0> Ready to receive file: 1f14 
from BX2ABT  at off: 817
DEBUG 3: Data: Adding UP LINK Event: UL_DATA_END
DEBUG 3: Data: UL_DATA_END: UL_DATA_END
S>>
I>>From:PFS3-12 to BX2ABT  Ctrl: 44 Type: I Cmd PF: 0 NR: 2 NS: 2  1 7 
10> UL NAK 16: ER_BODY_CHECK
DEBUG 3: Data End: Adding UP LINK Event: From:PFS3-12 to BX2ABT Ctrl: 44 
Type: I Cmd PF: 0 NR: 2  NS: 2  1 7 10> UL NAK 16: ER_BODY_CHECK
DEBUG 3: Data End: UL_NAK_RESP: From:PFS3-12 to BX2ABT  Ctrl: 44 Type: I 
Cmd PF: 0 NR: 2  NS: 2  1 7 10> UL NAK 16: ER_BODY_CHECK
NAK: ER_BODY_CHECK received while uploading: 
/home/hans/PacSatGroundData/FalconSat-3/BX2ABT17.txt.out

TIME-1: PHT: uptime is 469/13:51:30.  Time is Sat Jun 08 12:19:29 2019.
U>>
DEBUG 3: Idle: Adding UP LINK Event: UL_DISCONNECTED
DEBUG 3: Idle: Adding UP LINK Event: Open ABCD:
Open ABCD:
B: 209908947.
PB: Empty..
---------END-------

This is what Direwolf's output is:

--------BEGIN-------
PFS3-1 audio level = 68(+118/-110)   [NONE] |||||||||
[0.4] PFS3-1>LSTAT:I P:0x13A8 o:0 l:31473 f:31529, d:1 st:4 e:26<0x0d>
Unknown APRS Data Type Indicator "I", Ambulance
[0L] BX2ABT>PFS3-12:(SABM cmd, p=1)

PFS3-12 audio level = 69(+115/-111)   [NONE] |||||||||
[0.4] PFS3-12>BX2ABT:(UA res, f=0)

PFS3-12 audio level = 70(+119/-110)   [NONE] |||||||||
[0.4] PFS3-12>BX2ABT:(I cmd, n(s)=0, n(r)=0, p=0, 
pid=0xf0)<0x05><0x02>^<0xa8><0xfb>\<0x04>
[0L] BX2ABT>PFS3-12:(I cmd, n(s)=16, n(r)=120, p=0, 
pid=0x08)<0x08><0x03><0x14><0x1f><0x00><0x00>1<0x03><0x00><0x00>

PFS3-12 audio level = 70(+121/-110)   [NONE] |||||||||
[0.4] PFS3-12>BX2ABT:(RR res, n(r)=1, f=0)

PFS3-12 audio level = 70(+121/-109)   [NONE] |||||||||
[0.4] PFS3-12>BX2ABT:(I cmd, n(s)=17, n(r)=120, p=0, 
pid=0x08)<0x04><0x14><0x1f><0x00><0x00><0xfe><0x00><0x00><0x00>
[0L] BX2ABT>PFS3-12:(I cmd, n(s)=1, n(r)=2, p=0, pid=0xf0)<0xfe><0x00> 
the internet server that you sent me a message on April 11, but 
unfortunately I never was able to download it. It took a while to get 
the transmitting part working, but now it does and I'm very pleased to 
be able to contact you via FS-3. Truly an amazin
[0L] BX2ABT>PFS3-12:(RR cmd, n(r)=2, p=1)

PFS3-11 audio level = 65(+118/-109)   [NONE] |||||||||
[0.4] PFS3-11>PBLIST:PB: Empty.<0x0d>
Unknown APRS Data Type Indicator "P", Original Balloon (think Ham b

PFS3-12 audio level = 66(+117/-109)   [NONE] |||||||||
[0.4] PFS3-12>BX2ABT:(RR res, n(r)=1, f=1)
[0L] BX2ABT>PFS3-12:(I cmd, n(s)=33, n(r)=120, p=0, 
pid=0x08)<0x08><0x03><0x00><0x00><0x00><0x00>1<0x03><0x00><0x00>

PFS3-12 audio level = 74(+125/-111)   [NONE] |||||||||
[0.4] PFS3-12>BX2ABT:(DISC cmd, p=1)
[0L] BX2ABT>PFS3-12:(UA res, f=1)
--------END-------