Acquiring signal my unit is over a year old , now i am getting "acquiring signal", cheched antenna and cable there are fine , when remove antenna say no antenna detected , did factory default , no joy any ideas ,note the unit does not leave the vehicle or moved around

It's the antenna. Is it still plugged into the unit? Where is the antenna located? Try moving it to another location.

The only thing you can try is the external antenna for this unit.

You could be in an area that has poor signal.

If it where me, I would go to a place that I could return a unit,
I only use garmin, there hand-held unit's are the top rated for
the frequency of getting satellites.

So say you have a walmart, see if you can return a unit, buy a garmin
and see if it get better reception, and if it doesn't then its not the unit.

If it does,sell you old one on ebay.

the outer braid part of the antenna cable has to grounded so what you report suggest that the grounding of the antenna is loose , incomplete but is completed when you move it

You may have a dead zone in lake area !! I experianced alot of signal lose on a lake in oklahoma last year !!! swampratt200 !! AAEEE!!!

I have a 3 year old Sportster 2 replay unit that worked perfect until 1 month ago. I posted my problem on this website a day before you did with this same problem. I googled to no end and even spoke to Sirius who wasn't willing to replace my unit at no charge since it was out of warranty. I found an unusual solution on the internet that worked for me. I place my receiver in the freezer for at least 20 minutes (this was recommended by a guy somewhere on the internet with the same problem). I have actually left it in freezer overnight too. This has solved my problem. It is the craziest thing but I thought I would try it before I resorted to replacing all my accessories and receiver since Sirius was less than cooperative with the issue. Anyway, hope this helps.

it could be the connection on the back of the reciever that could be bad. I would call sirius and see if your reciever is under warranty still, if not i can almost garauntee that your tuner antenna input is bad, if your antenna is brand new.

This unit looses reception all of the time even with the antenna headphones placed right next to my cars antenna.
You need the car or home kit or else you will suffer many drop outs "aquiring signal".

Have you tried an external antenna? The flip antenna's are known to give problems,

Sirius does not stand behind their products, There is no out of warranty repair for their radios,  and they do not offer sites for repair. Seems  like this is a definite problem with this model. Their solution is to buy a new radio,(with all the new-docking,boombox etc) accessories. also they charge $75.00 to change to the new radio.I liked my sportster 1 because of the FM modulator. It just had to be centrally located and all the radios in my home picked it up(no docking) the new radios require $50.00 docking stations for each stereo location and radio location, unless you bring a boombox everywhere, and the sound isn't the same.    I feel there should be a class action lawsuit against Sirius for these reasons and I might look into it. What do all you think?