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AO-40 QRV report on orbit#242 from Japan.
- Subject: [amsat-bb] AO-40 QRV report on orbit#242 from Japan.
- From: Yoshihiro Imaishi <imaishi@xxxxxxxxxxxx>
- Date: Sun, 13 May 2001 09:43:40 +0900
Hello Tjis is Yoshi.
Sorry for delayed report. This is the report of AO-40 QRV on orbit#242
during 11:46 May-10th - 03:05z May-11th.2001.
1. Equipments
S-Down : MAKI 29ele LOOP YAGI + LNA + 2way splitter
FT-817 for Telemetry receiving.
IC-821 for communication.
U-Up : IC-821 (5-20W) with 25deg. fixed elv. 6ele YAGI.
This time, I tried to split IF signal from 2880 for 2 way by using
splitter unit of BS/CS sat.
<http://plaza16.mbn.or.jp/~palau/images/2880-2spfcs.jpg>
2. QRV Documents
UTC__ MA_ Dist(km) Events__________
11:46 44 43,570 Started S2-MB receiving. S 1-2. AO40RCV could not
trigger the sync bite.
14:00 74 54,460 Still weak. All blocks are CRCC bad. QRT for sleep.
(23:00 local time).
- - -
19:56 154 58,000 QRV again. Strong S2-MB!. Telemetry data says that
there is S1-Tx. I found S1-MB on 2401.346MHz. Thst
is as same strong as S2-MB but less QSB than S2.
20:01 155 57,860 Changed FT-817 dreq to S1-MB.
20:04 156 57,770 Loop test on 2401.400MHz. RST 519. U-AGC indicated
as 2-4dB. It is clear enough.
20:06 157 57,700 Started VVV on 2401.400MHz, then called from Ian ZLAOX.
I changed to SSB and contacted with him by His53-My54.
20:10 158 57,570 Ian called me by his special callsign ZL75. Thanks
Ian! Is that a anniversary of NZART?
20:18 159 57,290 Loop by 10W CW -ok. 5W CW -good!
20:19 160 57,260 Worked with JA4BLC by 529-559
20:26 161 57,030 CHecked both S1-MB and S2-MB by switching. Not so
different but S1 is less QSB than S2.
20:28 162 56,960 FM modulated signal on 2401.376! illegal truck driver
sent his voice so far place... sigh... :-<
20:29 162 56,900 Found like a PSK31 signal on 2401.401. My PC is busy
for decoding telemetry sdo I could not decode it.
20:35 163 56,700 Started SSB CQ on 2401.390 ... no contact.
20:48 166 56,170 Checked the signal of RUDAK. Found GMSK signal on
2400.785, pure callier on 2400.817/874. All of them
were about S-2 unit weak than S1-MB.
20:51 167 56,050 Heavy noise! Car ignittion? or from Microwave oven?
20:52 167 56,010 Found a pure callier on 2401.346 and it had there for
a long time. Was that the band-edge marker that the sat
or somebody sending?
20:53 167 55,940 Too much strong voice on 2401.348. Same level as S2-MB.
I could not understand what are they speaking - not
English.
20:54 167 55,910 Started SSB CQ on 2401.390 ... no contact.
21:06 170 55,390 Found a bleaf voice of JA1FS. He was 55 strong enough.
21:09 171 55,240 Worked with JH1UGF Mr.Makioka on 2401.351 by 53-52.
He is the owner of MAKI-Electrnics Corp (The Maker of
my 29ele LOOP YAGI Hi!). He was uplinking on L band.
21:14 172 55,000 Then called from JH0TOG but could not QSO.
21:21 174 54,660 Found Ian ZL1AOX's SSB CQ on 2401.350. ZL is at the
east edge of footprint. Maybe soon LOS there. I heard
QSO between ZL1AOX-JH0TOG.
21:26 175 54,400 Called Ian ZL1AOX Ian and say thanks again.
21:30 176 54,210 QRT and checked todays schedule (06:30 local). The
meeting had cancelled (Lucky!!) so I got a day off
today.
22:10 185 51,840 QRV again. Heard VK6AK? SSB signal but could not copy well.
22:14 186 51,570 Heard SSB QSO between JA0BBW-JA4GVA on 2401.360. JA0BBW
said he is using 120cm! U-AGC is around 10dB.
22:18 186 51,350 Heard too much strong (same as S2-MB level) voice
QSO on 2401.346. I heard "uno...due..chinquo.."
is that Italian number? Were they Italian station?
22:24 188 50,910 They went somewhere.
22:26 188 50,830 Started CW CQ on 2401.370. 539 by 20W.
22:35 190 50,130 Called from Rino I7LIT and workd by 539-569. His signal
was little bit weak than mine. It was my 1st Europe
station!.
22:49 193 49,090 Got QRM so QSY to 2401.375, then got FM QRM so QSY
to 2401.390 again.
22:54 194 48,680 Heard SSb CQ from DC?B? but could not copy.
22:58 195 48,380 Started CW CQ on 2401.394.
23:03 197 47,930 Sat sunked behind the structure and lost S2 signal.
- - - -
01:41 232 27,900 Moved antenna to the tellace with cabling 20m coax
from my shuck. Started receiving again. S2-MB was still
strong enough but S1-Mb was weak.
01:53 235 25,650 Heard JA5F? voice talking with somebody. Then I tried
to call him but my loop signal was too weak.
01:58 236 24,750 Started CW CQ on 2401.380 (20W) . Most of Telemetry
data were CRCC NG so I could not check the IF matrix.
The transponder will be soon off.
02:12 239 21,700 Called from JR4BRS by SSB and worked with him on closs-
mode by 42-559. Then I lost the downlink at 02:14:30.
It might be the off time.
02:22 242 19,000 S2-MB became weak and AO40RCV could not chase it.
- - - -
3. U-AGC summery
Here is the chart image of U-AGC data during the Xpond-on time on
orbit#242.
<http://plaza16.mbn.or.jp/~palau/images/ao40-orb242-uagc.gif>
4. Misc.
This is a photo image of my receiving antenna that I moved this morning
to the terrace with long cabling.
<http://plaza16.mbn.or.jp/~palau/images/s-29ele-lna01.jpg>
The 2-way splitter is working well!. I can hear both beacon and
communication signals at same condition!.
Thank for reading.
Yoshihiro Imaishi JF6BCC/KH2GR
GL:PM53JV, ex KC6IY(T88IY),V63BP
mailto:jf6bcc@jarl.com or jf6bcc@jamsat.or.jp
<http://plaza16.mbn.or.jp/~palau/> Sorry, Japanese only now.
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