Sirius - My daily 40 minutes of silence
Ellen
unit moves a tad each day.
I know it is not the antenna as when it works, it works beautifully, even
through closed mini blinds.
When opening the unit, the directions said that if in Michigan, point it
North. There are no repeaters North of us.
Any ideas welcome.
Ellen
45th Parallel
amanda
"Ellen" <bee...@core.com> wrote in message
news:12trg3b...@corp.supernews.com...
center of the US states....
You are not alone! Sirius plans on a geo-sync sat in 2008, until then your
stuck with Sirius's
shitty coverage, OR......
You can go with XM.....works all the time.Try a XM radio on channel 1 and
see if you can hear
the "Barker" channel. If you can...it will work 24/7 :)
Coyote
Three times a day two sirius satellites are near directly overhead in upper
Michigan. This occurs
3 times a day at 8 hour intervals. At this time in the orbit one satellite
is moving north towards the artic circle
and the other satellite is moving south towards the equator. It may be your
antenna is unable to see directly overhead
during this time frame.
The three sirius satellites are in a north south orbit. Each satellite
spends 16 hours north of the equator and
8 hours south of the equator. The satellite south of the equator is shut
down and not in use during this
segment of the orbit.
The orbits are inclined. The apogee or northern loop is near 30K miles in
elevation while the
lower southern loop is around 10K miles in elevation. As a satellite moves
northward it's climbing
and slows down in speed. This is why it loiters when moving northward. As
it turns to the
south it gains speed as it is going down hill. This is why a satellite
spends 16 hours north of the equator
and 8 hours south of the equator
Coyote
Scroll down on this site to view a animation of sirius satellites.
A map also shows footprint of signal coverage.
http://www.dogstarradios.com/sirasasecoma.html
amanda
"Coyote" <nom...@frontmed.com> wrote in message
news:o62dnYCeFMTNSEDY...@scnresearch.com...
In reality it doesnt!
Too much deadtime. While the Loral 1300's run 20KW output into a 9 foot
reflector, it's ERP is just too low to get into anything.
If your "in the clear" it's OK..but ANY and i mean ANY obstruction and your
history. Add to this the lack of ground based "Repeaters"
and it's a crappy system.
last count was about 140 repeaters for Sirius...over 800 for XM.
By the way, the XM birds run 18,000 Watts into a 16 foot reflector!!!
Sirius wants to launch a STATIONARY sat to 96 degrees....wonder why???
Phil®
I had some dropouts too so I mounted
the antenna outside the window.
Works better with a clear view. I have reception 24/7 now.
Just for extra water proof protection I used silicon around the
entrance wire going into the antenna.
Silicon worked well on my car antenna too.
Good Luck
Kimba W. Lion
>When opening the unit, the directions said that if in Michigan, point it
>North. There are no repeaters North of us.
For MI, I would think West or maybe Northwest would be the desired direction,
not due North.
Coyote
"amanda" <amanda...@yahoo.com> wrote in message
news:UIkDh.1661$re4...@newssvr12.news.prodigy.net...
OK Frontmed, Then WHY has XM got a patent for a Tundra Orbital system if
XM's birds are so great.
Thursday, February 08, 2007
XM Files Another Patent Application to Operate Satellites in Tundra Orbit
XM had yet another application published today for the operation of
satellites in tundra orbits. One has to wonder what all this activity is
about. XM's present satellites operate in a geostationary orbit in the Clark
belt, as we understand it. Sirius' satellites operate in tundra orbits.
The first patent we kind of blew off as some relic of the past. The European
application was just a follow up to that, it seemed. That they are actively
working of the idea is another matter. Do they plan to change their
constellation? Probably not, but still... Are they going to use this against
Sirius? Is this why Sirius now plans to put a satellite in geostationary
orbit? Are they planning satellite radio elsewhere where this type of
constellation might be useful? The application only references the US. This
is curious.
United States Patent Application 20070032191
Kind Code A1
Marko; Paul D. February 8, 2007
--------------------------------------------------------------------------------
Method and apparatus for selectively operating satellites in tundra orbits
Abstract
A satellite system provides geosynchronous satellites in elliptical orbits
in respective elliptical orbital planes separated by 120 degrees. The
satellites traverse a common figure-eight ground track comprising northern
and southern loops. The satellites are controllably switched to operate the
satellite currently traversing the northern loop to deliver a selected
signal (e.g., a selected frequency signal) to satellite receivers.
-----
Looks to me XM will use a Trunda (Sirius) orbit in the future.
A Hybird system would work best for both XM and sirius.
http://satelliteradiotechworld.blogspot.com/2007/02/xm-files-another-patent-application-to.html
NoDow...@gmail.com
This problem is due to Sirius' "elliptical" orbits, which effectively
causes the satellites to move away from where you have the antenna
aimed. If you have the problem, you have it. Two possible solutions:
1) Get the antenna outdoors where it has a clear view to the open sky
at all times; or
2) Get XM, which doesn't suffer from this problem.
Coyote
<NoDow...@gmail.com> wrote in message
news:1172242310.4...@s48g2000cws.googlegroups.com...
Not always the case. XM will not work in my home in any
north facing room. Nor will it work if any solid object blocks
the full southern sky.
PM
my house and get a fluctuated signal beetween 70% and
100% depends on the time of day.
"Ellen" <bee...@core.com> wrote in message
news:12trg3b...@corp.supernews.com...
NoDow...@gmail.com
> north facing room. Nor will it work if any solid object blocks
> the full southern sky.
A lie.
I have one XM receiver, this instant, providing 3 bars of reception,
which is pointed directly at southern-facing brick wall. Works fine.
You could never, ever do that with Sirius.
Coyote
<NoDow...@gmail.com> wrote in message
news:1172423859.0...@j27g2000cwj.googlegroups.com...
Frontmed lies again.
as usual
Bonehenge (B A R R Y)
>I live in S.W.Michigan, I have pointed antena sright up on the East side of
>my house and get a fluctuated signal beetween 70% and
>100% depends on the time of day.
I get the same signal here in CT.
My two XM antennas (one for the den, the other for the basement
workshop) are INSIDE my garage, hot glued to the wall. They are
pointed west, at about a 45 degree incline. The garage has metal
roll-up doors, a plywood and shingle roof, plywood and drywall walls
with exterior vinyl siding (with a metallic paper pre-Tyvek wind
wrap), and exactly ONE window.
Randy Mitchell
news:dhust2p41cr7eh1sj...@4ax.com:
> "Ellen" <bee...@core.com> said in alt.radio.satellite:
>
>>This is getting old. As the earth rotates, my period of silence on my
>>home unit moves a tad each day.
>>
>>I know it is not the antenna as when it works, it works beautifully,
>>even through closed mini blinds.
>
> I, too, was seeing these annoying periods of no reception. I am using
> a SiriusConnect unit intended for a car in my house; originally I
> placed the antenna on my (wood and drywall) windowsill. After some
> time, I tried sticking the antenna on top of a metal filing cabinet
> (the antenna has a magnetic base). Voila! No reception problems since,
> even though the filing cabinet is several feet away from the same
> window where I had originally placed my antenna.
>
> I know that some antennas work better when they have a metal ground
> plane. The Sirius antenna I have might be one of them.
>
> FWIW.
>
I have seen a number of posts complaining about losing the signal for a
substantial period of time with Sirius and I'm a little surprised. I
drive a special needs 18 passenger van for a retirement center (the same
type of vans used for rapid transit systems). The van has an extended top
to allow walking around inside and the upper section is made of
fiberglass. Therefore, my XM magnetic antenna cannot be used on the roof
of the van. I have located the antenna on the driver's side front quarter
panel about halfway between the windshield and the front bumper on the
top of the fender and my radio shows full reception in almost any
location. The only time I ever lose the signal is when I am driving
through downtown Chattanooga, Tennessee between a couple of the
larger"skyscrapers" type buildings, however, I only lose the signal for
about 10-15 seconds. As soon as I am past that area the recrption returns
to normal. Some of the postings I have seen complain about losing the
signal for several hours or more and frankly, I would consider that
competely unacceptable whether it was XM or Sirius. Losing the signal for
that length of time is definitely a transmission problem and not due to
location of the radio or antenna. The reason this surprises me is because
in my opinion, regardless of the quality of programming, I would not pay
for any service with this type of transmitting inconsistencies. Many talk
about how much better the lineup is on Sirius and yet complain of all
these reception problems and I would drop them like a hot rock if I
experienced anything like this.
Just my 2˘ worth...
J. Randy
David
wrote:
> Many talk
>about how much better the lineup is on Sirius and yet complain of all
>these reception problems and I would drop them like a hot rock if I
>experienced anything like this.
>
Yes. Old people love their XM.
Randy Mitchell
4ax.com:
Well, you could be right...if you consider 50 to be "old".
J. Randy