CAS-5A manual update2023年03月01日 07時52分

New version 2.1 of the manual for the CAS-5A
How to receive and request DTMF from the camera
CAMSAT CAS-5A Amateur Radio Satellite User's Manual  v2.1 pdf

AprizeSat series2023年03月01日 11時32分

SpaceQuest   Argentina
AprizeSat-1  #28372 unknown
AprizeSat-2  #28366 unknown
AprizeSat-3  #35686 unknown
AprizeSat-4  #35684 unknown
AprizeSat-5  #37792 unknown
AprizeSat-6  #37793 400.591 GMSK 9600 unknown
AprizeSat-7  #39416 400.585 GMSK 9600 unknown
AprizeSat-8  #39425 400.553 GMSK 9600 active
AprizeSat-9  #40018 400.552 GMSK 9600 active
AprizeSat-10 #40019 unknown

KSM1 series2023年03月01日 14時12分

Kleos Space, Luxembourg
KSM1-A, #46912 401.030MHz 9k6_FSK active
KSM1-B, #46914 401.060MHz 9k6_FSK active
KSM1-C, #46906 401.120MHz 9k6_FSK active
KSM1-D, #46907 401.090MHz 9k6_FSK active

PIXL-1 9k6_MSK2023年03月01日 15時29分

German Aerospace Center
#47448 400.575MHz 9k6_MSK active

Centauri series2023年03月01日 16時53分

Fleet Space Technologies, Australia
Centauri-1 #43809 400.625MHz 9k6_FSK inactive
Centauri-2 #43722 400.625MHz 9k6_FSK inactive
Centauri-3 #47966 400.180MHz 9k6_FSK active
Centauri-4 #48898 400.180MHz FSK     active
Centauri-5 #52742 unknown
Centauri-6 to be launched
Centauri-7 to be launched
Centauri-8 to be launched

CAS-5A Images-Decoder Update2023年03月02日 09時15分



EROP@HRPTEgor updated the decoder to work with the new CAS-5A signal structure.

以前のCAS-5A衛星の録音ファイルを この updated decoder にかけると、エラー
メッセージが出て描画することができない。現在のCAS-5Aの信号構造に対応した
新しい updated decoder である。(現在の録音 IQ.wavファイルを求む。)
http://www.ne.jp/asahi/hamradio/je9pel/cas5aimg.htm

CAS-5A Photo 072023年03月02日 10時49分

Thanks to the decoder @knglaser, but also the hard work of @scott23192 and
@HRPTEgor, I have such a picture! I sent to satellite twice requesting *07#.
I saved the kss file and processed the decoder. SUCCESS !  @Tomasz SP5LOT
https://pbs.twimg.com/media/FqLYfJ8WAAIf1Mq?format=jpg&name=small

Thunderbirds2023年03月02日 17時43分

CAS-5A first successful access2023年03月03日 20時06分

IQ.wav saved by JE1CVL&JA3IKC, 3 Mar 2023
しかし下の cmd_prompt画面を見ると、衛星信号の構造と新しいdecoderとの
相性が合っていないように思える。

 

 

CAS-5A jpg trick?2023年03月04日 17時59分

CAS-5A jpg trick?
JE9PEL, Mineo Wakita
On Sat, Mar 4, 2023 at 7:14 UTC

I downloaded several jpg_file including *A07# or *A09# through the
DTMF request command to the satellite. Then the following message,
"Try to get another photos" or "Synchronization code not received"
appears on the cmd_prompt screen and I cannot proceed.
Is there any trick to making an image?

Re: CAS-5A jpg trick?
K4KDR, Scott

No trick, I'm afraid... I know it sounds simple (even though it is NOT),
but we just need to get ALL of the packets.

When you miss packet #1 (with the 'FF D8' bytes), that decoder will show
"Synchronization code not received". Here is an example from #22 last
night. These are the decodes from N6RFM (with the ax.25 header removed
so the sequence numbers are at the start of each line in my editor):



... you can see that he got every packet up until number '008e', but
then missed a number of packets until decodes started again with #00a2.

So, to make a complete picture, I looked at MY decodes and I had the
missing packets.  With copy/paste, I was able to fill in all of Bob's
missing packets from my decode.  Very lucky!

It would be a real accomplishment for ONE station to get a perfect,
100% picture with no missing packets... at least on a single pass.
But even if you don't get packets from another station, you can always
download again on the next pass - or even on the next day. Over 2
or 3 passes, you can accumulate all the packets and fill in the ones
that are missing. Good luck!!