Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-05 Thread David J Taylor
Satellite TV (Dish, Direct, etc) has been having trouble for 10 hours or so, sometimes losing some channels and occasionally all of them. Fox News is consistently down, so it could have a human cause, but Space Weather says we have unusual solar activity. I no longer have GPS time receivers,

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread David I. Emery
On Fri, Nov 04, 2016 at 06:53:53PM -0500, David wrote: > On Fri, 4 Nov 2016 18:43:03 -0400, you wrote: > > >... > > > > There HAVE been attempts to deliberately jam cable distribution > >satellites... mostly the EIRPs used for distribution signal uplinks > >make this a bit difficult, but it

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread David
On Fri, 4 Nov 2016 18:43:03 -0400, you wrote: >... > > There HAVE been attempts to deliberately jam cable distribution >satellites... mostly the EIRPs used for distribution signal uplinks >make this a bit difficult, but it has been done. There are also some >countermeasures in place to

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread David
On Fri, 4 Nov 2016 18:23:16 -0400, you wrote: >I no longer have DISH but I did have it a year ago and the outage >happened every year like clockwork , they even sent me a notice that I >could expect a sun outage and I did.. I also experienced outages every >time a thunderhead at 30,+ feet

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread David I. Emery
On Fri, Nov 04, 2016 at 06:19:13PM -0400, David I. Emery wrote: > Solar outages are not greatly worse on C band. > > It WAS true that EIRPs at C band were kept lower at one time (to > protect the now mostly completely abandoned terrestrial C band microwave > telephone network which

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread David I. Emery
On Fri, Nov 04, 2016 at 03:19:20PM -0700, Hal Murray wrote: > > petervince1...@gmail.com said: > > Sorry Don, I beg to differ. The effects are often not noticeable in these > > days of digital television, but the noise-floor can definitely be seen to > > rise dramatically on a spectrum analyser.

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Artek Manuals
On 11/4/2016 6:04 PM, Peter Vince wrote: Sorry Don, I beg to differ. The effects are often not noticeable in these days of digital television, but the noise-floor can definitely be seen to rise dramatically on a spectrum analyser. Regards (ex BBC TV, London) On 4 November 2016 at

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread David I. Emery
On Fri, Nov 04, 2016 at 09:58:50PM +, Mark Sims wrote: > I was a local electronics parts store this afternoon and they were > saying some of the satellite TV internet infrastructure was being > DDoS'd... ah, the subtle wonders of a few hundred thousand hacked TV > cameras yammering down your

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Hal Murray
petervince1...@gmail.com said: > Sorry Don, I beg to differ. The effects are often not noticeable in these > days of digital television, but the noise-floor can definitely be seen to > rise dramatically on a spectrum analyser. Right. But I think that's because the sun is lining up with the

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Don Murray via time-nuts
Peter... The rise in the noise floor on Ku was not sufficient to cause programming outage. When I was running the satellite receive system in Miami, we never had problems with Ku downlinks during the twice yearly sun outage. My customers in the news department got very upset when their

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread David I. Emery
On Fri, Nov 04, 2016 at 06:11:48PM -0400, David I. Emery wrote: > > The solar outage season (a loss of signal for about 10 minutes > max when the sun is directly behind the satellite as seen from the dish) > runs from very late Sept (deep south) to about Oct 15 or so (Canada). Try

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Richard (Rick) Karlquist
On 11/4/2016 2:51 PM, Don Murray via time-nuts wrote: DirecTV and DishNetwork are on Ku-Band platforms. Ku-Band is not affected by sun outage. Don W4WJ The backhaul on C band might be affected. Rick ___ time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread David I. Emery
On Fri, Nov 04, 2016 at 05:51:35PM -0400, Don Murray via time-nuts wrote: > DirecTV and DishNetwork are on Ku-Band platforms. > Ku-Band is not affected by sun outage. I beg to differ !!! The sun is still plenty energetic enough at 10-12 Ghz to override weak satellite

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread David I. Emery
On Fri, Nov 04, 2016 at 04:52:25PM -0400, paul swed wrote: > U with respect to direct TV is it the noramal two time per year sun > outage its about the right time. > Regards > Paul. Nope way off... The solar outage season (a loss of signal for about 10 minutes max when

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Peter Vince
Sorry Don, I beg to differ. The effects are often not noticeable in these days of digital television, but the noise-floor can definitely be seen to rise dramatically on a spectrum analyser. Regards (ex BBC TV, London) On 4 November 2016 at 21:51, Don Murray via time-nuts

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Peter Vince
I don't think so Paul. That happens about the 12th of October in London (51.5° North), a few days later at higher latitudes, and a few days earlier at lower latitudes. Cairo, for instance, on about 30° North, was around the 5th of October. Peter On 4 November 2016 at 20:52, paul swed

[time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Mark Sims
I was a local electronics parts store this afternoon and they were saying some of the satellite TV internet infrastructure was being DDoS'd... ah, the subtle wonders of a few hundred thousand hacked TV cameras yammering down your pipe at the same time.

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Don Murray via time-nuts
DirecTV and DishNetwork are on Ku-Band platforms. Ku-Band is not affected by sun outage. Don W4WJ In a message dated 11/4/2016 3:52:33 P.M. Central Daylight Time, paulsw...@gmail.com writes: U with respect to direct TV is it the noramal two time per year sun outage its about the

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread paul swed
U with respect to direct TV is it the noramal two time per year sun outage its about the right time. Regards Paul. On Fri, Nov 4, 2016 at 4:47 PM, Norm n3ykf wrote: > Tmobile clock on cell off. Garmin fenix3 watch is correct. > > On Fri, Nov 4, 2016 at 4:19 PM, Don

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Norm n3ykf
Tmobile clock on cell off. Garmin fenix3 watch is correct. On Fri, Nov 4, 2016 at 4:19 PM, Don Murray via time-nuts wrote: > No problems here with FOX on Dish, Ch 205 > > Don > W4WJ > > > > In a message dated 11/4/2016 1:45:21 P.M. Central Daylight Time, > bill.i...@pobox.com

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Don Murray via time-nuts
No problems here with FOX on Dish, Ch 205 Don W4WJ In a message dated 11/4/2016 1:45:21 P.M. Central Daylight Time, bill.i...@pobox.com writes: Satellite TV (Dish, Direct, etc) has been having trouble for 10 hours or so, sometimes losing some channels and occasionally all of them.

Re: [time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Pete Stephenson
On Nov 4, 2016 19:45, "Bill Hawkins" wrote: > > Satellite TV (Dish, Direct, etc) has been having trouble for 10 hours or > so, sometimes losing some channels and occasionally all of them. > > Fox News is consistently down, so it could have a human cause, but Space > Weather

[time-nuts] Satellite TV messed up, how is GPS time

2016-11-04 Thread Bill Hawkins
Satellite TV (Dish, Direct, etc) has been having trouble for 10 hours or so, sometimes losing some channels and occasionally all of them. Fox News is consistently down, so it could have a human cause, but Space Weather says we have unusual solar activity. I no longer have GPS time receivers, so