Search found 233 matches

by dazcaz
Thu Apr 19, 2007 10:37 pm
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

No worries Dave, Just heard the 23:26 pass and ISS is working many EU hams and he's called one UK ham, sadly it wasn't me :( Only a short pass this time. I have the bit between my teeth now. The new rig is going in and I'll be shouting on every pass. Sadly if I do make the trip, I don't think that I...
by dazcaz
Thu Apr 19, 2007 10:21 pm
Forum: Observing
Topic: My God! It's full of stars .....
Replies: 13
Views: 4881

The western end of Cornwall does this to me. We often camp near Goonhilly. We don't need a telly or any other distraction on clear nights. We just wrap up warm and sit outside the tent or motorhome (depending which we take) and crick our necks and look upwards. I'm not a religious man, a born athies...
by dazcaz
Thu Apr 19, 2007 10:11 pm
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

Dave, I too only heard the one side :( To transmit to ISS you need to be on 145.200MHz. This split operation means you'll only hear the ISS.... Just like being in a taxi, you only ever hear base and not the other cars :) TX: 145.200 RX 145.800 ISS listens on 145.200 and transmits 145.800 The uplink ...
by dazcaz
Thu Apr 19, 2007 9:26 pm
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

Just watched the ISS pass just above Saturn, As it flew over my receiver burst into life. NA1SS in conversation with HA2SK (in Hungary) on the ham freq 145.8. This contact finshed with the words,"thanks for the good wishes we're heading home tomorrow, I'm looking forward ". Then a brief ex...
by dazcaz
Thu Apr 19, 2007 5:26 pm
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

Davej, I'm lucky that my ham radio kit has a line level out, so I get a constant line level regardless of te volume setting. This output is designed for when we use data modes. It supposed to feed into the computer, but I feed it into my 20gig "Archos Jukebox FM Recorder" running Rockbox f...
by dazcaz
Thu Apr 19, 2007 7:17 am
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

I've just heard about 5 seconds of Russian on the 143.625 frequency! as it passed over Burton OnTrent at 9.30 God, they've got a great job! I've recorded those 5 seconds :) My system does seem to be working. Those 5 seconds was/were the only transmission I heard all day. I rushed into the radio sha...
by dazcaz
Thu Apr 19, 2007 7:12 am
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

Yep, I used my refractor this time, as my reflector turned out to be rather uncollimated. So I got sharper images than yesterday: http://www.12dstring.me.uk/images/iss70.jpg Holy turds!!!!! Bloody amazing stuff :) I watched it through bins (12X50) but it was nothing more than a blob. Well done! Dar...
by dazcaz
Wed Apr 18, 2007 6:11 pm
Forum: General chat
Topic: Astronomy for Schools
Replies: 14
Views: 4715

Where I work, we have a small, but beautifully equipped planetarium. We also have a few world class presenters, don't we Praesepe? ;) This is always popular with young kids, but sometimes it can be a struggle to get non school group kids interested. Our under 7 shows are quite popular. We run "...
by dazcaz
Tue Apr 17, 2007 8:20 pm
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

Just watched the 21:09 (local) ISS pass. Wonderful!!!!
Sadly nowt heard on the radio.
I was amazed at just how accurate the Heavens above prediction was.
There are some clever people in this world!

Darren

PS Now waiting for 22:45
by dazcaz
Tue Apr 17, 2007 7:43 pm
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

Managed to record a couple of minutes of today's 19:36 (local) pass. This time on 145.800. Not that strong and soon faded away. Sadly my "sky pointing" weather sat antenna seems to developed a fault... More like the cable has come away :( so I'm relying on my vertical ham antenna which isn...
by dazcaz
Tue Apr 17, 2007 4:31 pm
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

It covers the frequencies needed, but being an analogue needle display it would be very difficult to get the right frequency. These tend to be crude TRF (Tuned Radio Frequency) receivers, you really need a synthesized, digital display type receiver to get the frequencies cock on.

Darren
by dazcaz
Tue Apr 17, 2007 7:13 am
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

My overnight test of my auto record was a disaster :( I was hoping to get nothing, but something cropped up on 145.8 and held the receiver's squelch open. I've recorded 5 1/2 hours of noise!!!!! It's intermittant. Possibly a neigbour's heating thermostat. I'll have another play when I get home from ...
by dazcaz
Mon Apr 16, 2007 11:31 pm
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

b****r.... When using auto record, I can't dual watch as the switch between the two freqs starts the recorder... I have a sproggy on 145.8 and it's a little too loud and starts the recorder running. So I chose 143 and not 145 thinking that they only use 145 for ham stuff and school links etc. D'oh!!...
by dazcaz
Mon Apr 16, 2007 10:17 pm
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

Heard nothing on 143.625 in Cardiff :( Rig listening, recorder set to auto record anything it heard.... NOTHING!!!! It was only a short pass for me (3 mins visable), so perhaps a little too far away. I don't know what daylight passes there will be tomorrow, but if I can find the PSU for the recorder...
by dazcaz
Mon Apr 16, 2007 8:03 pm
Forum: Visual Satellite Observing
Topic: ISS voice transmissions
Replies: 1146
Views: 267167

Just caught the 20:49 pass of ISS. Cloud cover prevented me from seeing it, but my radio caught a one sided conversation in russian on 143.625. Two different voices talking to ground. Obviously ground could not be heard :( I have recorded it on my moby. It's saved as an amr file. How do I convert it...