Hi
AO7 start on mode B , then change to A at 21:00 UTC.
73
PY5LF
Luciano Fabricio
Curitiba-PR-BR GG54jm
http://www.qrz.com/db/PY5LF
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Hi!
Depending on weather, QRM/QRN, and AO-7, I hope to be on the AO-7 pass around
2025 UTC this afternoon from outside the ARRL Centennial Convention in Hartford
(grid FN31ps). I will use my two FT-817NDs and Elk log periodic antenna, and
should have a nice audience listening to wrap up
Hi
AO7 start on mode B then at 21:43 UTC change tom mode A , going to NA.
73
PY5LF
Luciano Fabricio
Curitiba-PR-BR GG54jm
http://www.qrz.com/db/PY5LF
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Not an
Hi
AO7 start on mode B , then change tom ode A , now 20:06 UTC.
73
PY5LF
Luciano Fabricio
Curitiba-PR-BR GG54jm
http://www.qrz.com/db/PY5LF
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Paul
AO7 don't support our QSO ( PY5LF, PV8DX, PT9BM) today and stop again around
20:20UTC , even when advise the people onboard to reduce the power.
Sorry
73
PY5LF
Luciano Fabricio
Curitiba-PR-BR GG54jm
http://www.qrz.com/db/PY5LF
Interesting that this seems to only happen on ascending passes. This
problem has not been reported on descending passes.
Hopefully this is just a symptom of sun angles on the solar panels at the
present point in it's orbit and when panel illumination improves, it will
become more reliable.
Of
Hi
Nice sequence of sats here in GG54;
AO 7 AOS 18:20 LOS 18:23 follow by FO29 AOS 18:24 LOS 18:40 follow by VO52
AOS 18:41 LOS 18:54 !
Almost one hour of sat available.
PY5LF
Luciano Fabricio
Curitiba-PR-BR GG54jm
http://www.qrz.com/db/PY5LF
Hello Northern Europe-A good foot print into CN87 (Seattle, Wa.) at 1800Z. On
or about 145.950.
73 Bob W7LRD
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Hello...More often than not I have to adjust the up link calibration on
satpc32 in order to accurately track the sat. It is not always the same
adjustment, it can vary from a few cycles to as much as 2.5 khz. Given AO-7 is
a grand old lady, is she just being temperamental, or do I have an issue
Aloha All
It appears AO7 may be in MODE A around 0100Z today. If so, I may give it a try
via CW.
Mahalo and 73
de robert, NH7WN
Honolulu
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Well I am definitely going to try and make the wee hours of the
morning pass of AO7, to see what Mode it is in. AO7-a was loud and
sometimes distorted, but it was weak at others.
I am uncertain of the switch time at this moment but it should be easy
enough to nail it down once the satellite
I have taken one final look at the time at which AO7 will come back into
full sunlight and will not lose the sun any more this season.
My predictions show that at /*22:55:32UTC today, AO7 will go back into
full illumination*/ and no further eclipse's will occur until the
Eclipse Cycle begins
Hello Satellite People;
it is my opinion that we are quickly approaching the end of the Eclipse
Cycle for AO7 this season. I had previously estimated the final
eclipse to be on August the 2nd between 0200 and 0300 UTC but upon
closer check with fresh Kep's it looks like the eclipse durations
AO7 is in Mode A during the 1309UTC pass over EM55aj84ta, just now.
Signals had slight distortion in them, but CW and SSB was readable.
I am not 100% sure if this is an indication of the end of the eclipse
cycle and the return to daily mode switches. My predictions had shown
more eclipses for
Hello BB's
I have a question for any of the fine satellite operators of New Zealand
and Australia. Does any one in those areas monitor AO7 as it enters
into the Eclipse as it nears the coast of Antarctica?
The pass that is flying over right now has an eclipse period duration of
9:40. I was
Hello All AO7 Operators;
During the Eclipse Cycle over Antarctica, AO7 continues to come out of
eclipse in Mode B.
Even better news is that I tracked down Jan A. King the designer of AO7
and he has graciously offered to answer some of my questions about the
basic design of the Grand Old
Good Day everyone;
hopefully by now everyone is aware that AO7 is going into an eclipse as
it passes over Antarctica and with the loss of sunlight on the solar
panels the satellite is going into a Zero Voltage System Reset, and when
the satellite comes back into the sun it is starting up in
AO7 is in Mode B and is giving every indication, from reports around the
globe, to being in the Eclipse Cycle while over Antarctica.
The software being used by those predicting the eclipse periods are Nova
and SatPC32, both seem to be very accurate and predicted the start of
the eclipse cycle
Are there any of the New Zealand satellite operators that could listen
to /*AO7 on May 21, 2013 during the 13:45:50UTC pass?*/
If I am correct this will be the beginning of the satellite eclipse
period that will run until August 2, 2013.
I am not using any fancy software to track the eclipse
Hello AO7 operators!
As of 1005UTC over the USA, AO7 is still in Mode A, the next 45 minutes
is the normal time frame for AO7 to switch so the next pass over Asia,
The Middle East and Western Europe should be switched to Mode B. The
satellite will be over Antarctica when the switch should
Hello Everyone,
I have taken the information from Ib, OZ1MY and plugged it into SatPC32
and starting on May 21, 2013 at approximately 1346UTC, AO7 will start
going into brief eclipse periods as it approaches the coast of
Antarctica. Based on my observations these eclipses will increase in
To all AO7 Users:
AO7 is in Mode A this morning, the normal switch should have occurred
around 10:50UTC, I believe that it was about this time last year when
AO7 was stuck in Mode B for about 3 weeks or more.
If the satellite is going into a brief eclipse periods, there is no
telling when
TO ALL AO7 USERS:
AT 2152UTC, THE AO7 PASS OVER THE WESTERN HEMISPHERE IS STILL IN MODE A.
I will check to see if the 1047UTC time is still the switch time for
the satellite in the morning my first pass that is close to the switch
time is at 0950UTC, the satellite will be over Antarctica when
Hello Linear Satellite lovers!
do any of the die-hard satellite operators want to work Mode A on AO7?
If you want and un-congested satellite pass that will give you good
distance and plenty of time on the Bird, then Mode A is the mode/bird
to try.
Almost any type of an antenna will work, I
/*For those who wonder about such things, the Mode switch for AO7 is
occurring at approximately 10:47:15UTC.*//*
*/
I was listening for Paul, 2M1EUB/P on AO7 this morning and AO7 was still
in Mode A when I came into the footprint, I listened and called for Paul
near center frequency until he
frank i was hanging about for the mode switch sorry we didnt make it ,from io97
im back in 87sq if you abt next 2days de paul 2m1eub/p
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Good Day BB;
this morning during the 1035UTC pass of AO7 over the USA AO7 switched
from Mode B to Mode A at 1037UTC according to my station clock.
Due to the fact that something cause the satellite to shift the switch
time to begin with it cannot be said that this switch time will remain
I noted that Ao7 was still in Mode B on the 0900UTC pass over EM55 but
on the 1042UTC pass it had switched to Mode A.
On the 0900UTC pass heard KB2RVT working EA8BWY and on the 1042UTC pass
I worked KJ4MCZ.
AO7-A was very loud and not crowded. at least we have a good Idea of
when the
Aloha All
It appears that the upcoming AO7 pass over Hawaii (0157Z) will be in MODE B.
The footprint will extend as far east as the western Iowa border. Parts of
Minnesota and
Texas will also be in my footprint. Short notice, I realize, however I will
try to be on
that pass. For those
Hello Fellow satellite users;
Is anyone operating AO7-a? A few of us diehard satellite users are
working AO7-A, the satellite is generally pretty empty, normally I am
just listening to my own signal on the down-link.
Mode A works just as well as Mode B does, you can use your HF beam as a
Just a note:
AO7-a over the USA this morning had a very nice signal, there was no one
but myself on the pass I was on, but the downlink was strong with minor
QSB, I tested with variable power levels and as expected high power
levels would bring on some distortion on CW signals and minor FM'ing
The 2140UTC AO7 pass over the US was heard by myself, I couldn't find
the satellite on Mode A so on the off chance I switched to Mode B and I
was clearly hearing my downlink on both CW and SSB.
I am not sure why or when it switched modes but the satellite was
apparently in a low power mode as
For those wondering about AO7-b, it is alive and well on the 2100UTC
pass over the US, good signal from Paulo, PV8DX, yes it is still FM'ing
some, but it is very readable when it is not being hammered.
The Grand Lady of Satellites is holding her on!
Treat her like the Grand Lady she is!
We
Aloha all
It appears A0-7 is still in MODE A. If so, I may give CW a try
on the 0200Z pass this afternoon. My key speed is SLOW and reception
is iffy. Regardless it would be nice to make a contact in MODE A.
I am still at my home QTH and mountains are problematic. The
footprint does make it to
Hi
Today at about 4pm/EST I worked someone on AO7.
I just couldn't make out whom it was, and it was my first time actually
making contact on a Linear bird.
IF the person who 'worked me' or anyone else that might have heard me,
could you please reply back and let me
Yesterday I was working/listening and waiting AO7 SSB VHF/UHF, One
station was booming in. Call sign intentionally not posted to skip their
possible embarrassment. Midway thru the pass the signals went dead. No
receive at all. If I recall from reading my theory he was likely hitting
bird with 100
Has there been much activity on Mode A recently?
73s John AA5JG
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Check my last email. AO-7 on mode, should be mode B?? It's a grand old lady,
I guess it can be tempermental.
73 Bob
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After about a month of trying Luis LU6QI and I completed a AO7 mode B CW
QSO. EL98-FK66, Most of the work was on his end as I have poor shot to
the south.
Gary K4MF
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Not
The AO7 switching time seems to have changed, can any one in the control
team shed any light on the subject please
Graham
VK2AYE
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Just had a nice QSO on AO-7. Worked RW3XL KO84DM on cw at a distance of 7,480
KM !?? WB2SIH? FN31DD
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Nothing heard during the 0145z pass (#65.199). Did it not switch?
73, Ed - KL7UW, WD2XSH/45
==
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
EME: 144-1.4kw*, 432-100w*, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep dubus...@hotmail.com
Few more comments:
Running 50w into the Lindy works the middle of the pass, OK on
AO7-mode A. I need my 8-element 2m yagi to do better. Since the
support tower is out of commission until spring, I could move the
B5400 and 2m/70cm antennas to a tripod mounted mast that I have used
Hello
I think it's internal clock AO7 changed. Today I got the exact moment when
the AO7 changes from A to B. This happened at 23:11:20 UTC, July 17, 2010
I had already noticed this a few days ago.
http://www.youtube.com/watch?v=hlSbjjrOJVw
73
PY5LF
LUCIANO FABRICIO
CURITIBA-PR-BRAZIL
Hello all
Signal heard from AO7 few minutes ago ;
http://www.youtube.com/watch?v=SAjsrSmmmiU
73
PY5LF
LUCIANO FABRICIO
CURITIBA-PR-BRAZIL
GG54JM
http://www.qrz.com/db/py5lf http://www.qrz.com/db/py5lf
http://www.falautomation.com.br/ www.falautomation.com.br
test
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To night at abt 9.17 gmt on AO7 , mode B Bob W7LRD and myself confirmed
working each other ,exchanged reports etc and was very workable below 0.3 deg !
althrough not a record cn87 to io92bx works out to be 7504.52 km distance but
may well be a United Kingdom A07 record?? thanks Bob and thanks
Hey Joe ...what do you you do in your spare time!!!
Congratulations on 9000+
Malc G7NFO
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