Sputnik 1 - Page 3 - UK Vintage Radio Repair and Restoration Discussion Forum

AC/HL · 9th Oct 2017, 8:35 pm

Coincidentally, I popped into the Media Museum the other day whilst in town. Tim Peake's taxi is in temporary residence. The parachute requires three floors to display, although only partially deployed.

dsergeant · 10th Oct 2017, 10:01 am

Regarding the anniversary, this is the eQSL card from R60SAT which was on the air on the amateur bands last week to celebrate the occasion. I was a bit disappointed that they used one of the stock eQSL photos rather than something a bit more appropriate. I don't think there are any lakes like that in Asiatic Russia...

Dave G3YMC

HamishBoxer · 10th Oct 2017, 10:06 am

Looks like a tropical island!

Bazz4CQJ · 12th Oct 2017, 11:17 pm

In the realms of transmitters on spacecraft, I wonder how many people on the forum might know that back in 1972 one Apollo spacecraft flew around the Moon for a few days dangling what looked like a 2m Yagi and a 40m dipole around its back end?

I was totally oblivious of this until quite recently, but this was an early ground penetration radar experiment flown on Apollo 17. It transmitted on 1.5, 15 and 150MHz. I subsequently found one photo where part of the Yagi can be seen, but I've never found anything where the dipole was visible. I believe the latter was unfurled rather like a steel tape measure. I think it ran about 100W out, so even if they could have attached a microphone and put out a "CQ", I'm not too sure that many of us would have heard it, even in the pre-wallwart era!.

B

9th Oct 2017, 8:35 pm	#41
AC/HL Dekatron Join Date: Nov 2003 Location: Heckmondwike, West Yorkshire, UK. Posts: 9,642	Re: Sputnik 1 Coincidentally, I popped into the Media Museum the other day whilst in town. Tim Peake's taxi is in temporary residence. The parachute requires three floors to display, although only partially deployed.

10th Oct 2017, 10:01 am	#42
dsergeant Octode Join Date: Mar 2006 Location: Bracknell, Berkshire,UK. Posts: 1,172	Re: Sputnik 1 Regarding the anniversary, this is the eQSL card from R60SAT which was on the air on the amateur bands last week to celebrate the occasion. I was a bit disappointed that they used one of the stock eQSL photos rather than something a bit more appropriate. I don't think there are any lakes like that in Asiatic Russia... Dave G3YMC Attached Thumbnails

10th Oct 2017, 10:06 am	#43
HamishBoxer Dekatron Join Date: Aug 2007 Location: W.Butterwick, near Doncaster UK. Posts: 8,932	Re: Sputnik 1 Looks like a tropical island! __________________ G8JET BVWS Archivist and Member V.M.A.R.S

12th Oct 2017, 11:17 pm	#44
Bazz4CQJ Dekatron Join Date: Apr 2009 Location: Oxfordshire, UK. Posts: 4,934	Re: Sputnik 1 In the realms of transmitters on spacecraft, I wonder how many people on the forum might know that back in 1972 one Apollo spacecraft flew around the Moon for a few days dangling what looked like a 2m Yagi and a 40m dipole around its back end? I was totally oblivious of this until quite recently, but this was an early ground penetration radar experiment flown on Apollo 17. It transmitted on 1.5, 15 and 150MHz. I subsequently found one photo where part of the Yagi can be seen, but I've never found anything where the dipole was visible. I believe the latter was unfurled rather like a steel tape measure. I think it ran about 100W out, so even if they could have attached a microphone and put out a "CQ", I'm not too sure that many of us would have heard it, even in the pre-wallwart era!. B __________________ Saturn V had 6 million pounds of fuel. It would take thirty thousand strong men to lift it an inch.