ISS voice transmissions

A place to post details relating to artificial satellite observations

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beamer3.6m
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Post by beamer3.6m »

Another question.

Heavens above have details of Radio Amateur Satellites - what can you here when you tune into these or do these simply carry the signal so that you can extend the range of your transmission etc.
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beamer3.6m
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Post by beamer3.6m »

Dave and Dstring can you report on what you hear tonight.

I quite fancy this 3d astronomy, not only can you see the stars you can hear the people amongst them - amazing.
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12dstring
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Post by 12dstring »

Yea sure, if I can pick anything up (haven't used my scanner in quite a while) I'll try and record it and post a link here.
Dave

Telescopes: Skywatcher Explorer-150 + Skywatcher ED80
Cameras: SPC900NC (SC1.5 & SC4.25 - both cooled) + Canon 350D (ACF modded)
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Davej
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Post by Davej »

beamer3.6m wrote:Another question.

Heavens above have details of Radio Amateur Satellites - what can you here when you tune into these or do these simply carry the signal so that you can extend the range of your transmission etc.
There are a great many of these satellites but I haven"t heard much

other than faint "bleeps" (can"t expect much more realy though).

With the right equipment you can convert weather satellite signals into

images of weather systems etc.

Dave.
Meade LX 200 (7"). Odyssey 8" Dob.
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dazcaz
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Post by dazcaz »

According to
http://www.rac.ca/ariss/oindex.htm#ARISS%20Status
there is no school contact scheduled for tonight. This doesn't mean that the hams on board won't be playing radio. They might be, but then they might be busy doing astronaut type stuff :)

the ARISS project is important, but it always takes second (or 3rd,4th,5th) to real space mission stuff. Don't forget they'll have their new passenger on board so he might take priority from ARISS stuff.

I'll be listening just in case. My little FT-817 and V2000 antenna are waiting :)

Darren
I once came last in an astronomy competition.
I was awarded a constellation prize


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Davej
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Post by Davej »

beamer3.6m wrote:Dave and Dstring can you report on what you hear tonight.

I quite fancy this 3d astronomy, not only can you see the stars you can hear the people amongst them - amazing.
Certainly will :)

Dave
Meade LX 200 (7"). Odyssey 8" Dob.
11X80 10x50 15x70 bins
Celestron Neximage ccd cam
12dstring
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Post by 12dstring »

Didn't get anything on that pass. :(
Dave

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dazcaz
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Post by dazcaz »

Davej wrote: There are a great many of these satellites but I haven"t heard much

other than faint "bleeps" (can"t expect much more realy though).

With the right equipment you can convert weather satellite signals into

images of weather systems etc.

Dave.
The ham sats are called OSCAR, Orbiting Satellite Carrying Amateur Radio.
There are many. Some are a lot easier to hear and talk through than others.
I used to dabble with this years ago, but gave up and switched to shortwave instead.
For more information on ham sats look at:-
http://www.uk.amsat.org/

It's nothing like CB ops pretending to be police. There is a BIG difference between CB ops and ham ops.

As for decoding weather sats, this is dead easy.
The decoding software can be downloaded from
http://www.hffax.de/html/hauptteil_wxsat.htm
This site also tell you all you need to know to get you started.

I have a pro weather sat receiver (Dartcom) and the Dartcom software.
receiving weather pics is fascinating. It's reverse astronomy. Getting images of Earth from space. Brilliant!

Darren
I once came last in an astronomy competition.
I was awarded a constellation prize


Skywatcher Explorer 200 HEQ5
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Davej
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Post by Davej »

12dstring wrote:Didn't get anything on that pass. :(
Didn"t even see it either (been clear all day untill about half an hour ago)

:(

Dave
Meade LX 200 (7"). Odyssey 8" Dob.
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beamer3.6m
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Post by beamer3.6m »

So how often do these things 'talk' then.

Is it often and worth while buying he kit or pure luck if you hear anything.

Can you also pick up planes etc.
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dazcaz
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Post by dazcaz »

The ham sats are in use every time they pass overhead. They work on different frequencies at different times, so you need to know what to listen for. They might be in data mode. The down link might be up on 1200Mhz... It all depends. Amsat UK and other sites will be able to tell you more. As the passes are not always directly overhead you might need larger and directional antennas to be sure of hearing them, but you can hear them on a handheld if you get one overhead.

The weather sats are constantly whizzing around. They orbit over the poles. A half decent antenna on the roof or in the loft will receive a decent length of pass.
Weather sats are continuously transmitting. So as they get close your software will wake up and start to decode the signal.
My software controls my receiver, so it only wakes up when a pass is due, but most software requires the rig to be tuned to the right frequency before the pass.
As for how often the passes are.... This depends. Sometime you can go for 3 or 4 hours without a pass, sometimes you get two ovehead at the same time on different frequencies. You rarely have to wait more than 2 hours for a decent pass.
From Cardiff a directly overhead pass will last about 10 minutes. The signal received covers from Spain to well above the Scottish isles. The scan width covers from Norway to well into the atlantic.

Some software will decode line by line so you see the image as it's sent, Others, like my dartcom software recive the signal and show the whole image when finished.
The right receiver will even allow you to see the infra red images too. Most scanners are not wide enough for this.
The signal you receive is basically a fax.

Is it worth spending the money... You betcha!
Any scanner can be hours of fun. Get the right one and you won't watch telly for weeks :)
Cordless phones(analogue), fire brigade, taxis, aircraft, marine etc etc etc.

A small warning.... Technically it is illegal to listen in to anything that isn't meant for public ears. So unless it's on a broadcast frequency it's illegal to listen to. This includes aircraft, but go into any airport viewing gallery and you'll see a lot of scanners :)
If you should "stumble" across a private transmission, it's illegal to say what you heard to anyone. ... The law is an ass!

Darren
I once came last in an astronomy competition.
I was awarded a constellation prize


Skywatcher Explorer 200 HEQ5
Skywatcher Skymax 127 SupaTrak
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RoCkHoPpEr
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Post by RoCkHoPpEr »

That is so cool will have to get me a scanner...

RoCkHoPpEr
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Gregger
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Post by Gregger »

I have a £25 scanner off Ebay

I too heard nothing last night except the traffic going into East Mids Airport
12dstring
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Post by 12dstring »

Just saw my first pass of the ISS, 88 deg altitude so it wizzed right overhead.
:shock: So bright! wooow!

not a peep from the scanner though.
Dave

Telescopes: Skywatcher Explorer-150 + Skywatcher ED80
Cameras: SPC900NC (SC1.5 & SC4.25 - both cooled) + Canon 350D (ACF modded)
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Davej
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Post by Davej »

12dstring wrote:Just saw my first pass of the ISS, 88 deg altitude so it wizzed right overhead.
:shock: So bright! wooow!

not a peep from the scanner though.
Same here (like I said on the posting I have just submitted to the

observing section) it should be even better tomorrow evening (for

my location hopefully) :)

Dave
Meade LX 200 (7"). Odyssey 8" Dob.
11X80 10x50 15x70 bins
Celestron Neximage ccd cam
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