Mary, It is interesting because I just fired up a unit that has the Holux GPSlim236 and it reported 11 satellite for most of the trip and there were even a few times when I hhad 12 satellites. I don't ever recall having 12 satellites on the 236 for the year or so I used it and quite rareley did I ever get 11 satellites. I think the last time I used the 236 was in April and then on average I had between 7-10 satellites. But the funny thing was, the entire evening I never received WAAS. So when you think you have this satellite business down, it hits you in the back. Kevin -----Original Message----- From: gps-talkusers-bounce@xxxxxxxxxxxxx [mailto:gps-talkusers-bounce@xxxxxxxxxxxxx] On Behalf Of Mary Ellen Earls Sent: Monday, October 15, 2007 5:53 PM To: gps-talkusers@xxxxxxxxxxxxx Subject: [gps-talkusers] Re: e: My Latest Experience with GPS Interestingly I get 11 satellites quite frequently here where I am living now. I have the Holux 236. ----- Original Message ----- From: "Kevin Chao" <g.unit89@xxxxxxxxxxxxx> To: <gps-talkusers@xxxxxxxxxxxxx> Sent: Monday, October 15, 2007 3:04 PM Subject: [gps-talkusers] Re: e: My Latest Experience with GPS > The higher the amount of channels means the more satellites that you are > able to track at any one given time, in GPS terms this is called "parallel > tracking." I have found through personal experience that the M-1000 that > has 32 channels will track in the range of 10-12 satellites quite > frequentley while the GPSlim236 using the SIRF STAR III will track in the > range of 8-10 satellites quite frequentley. I think the thing to really > pay attention to is the sensativity and battery life of the recievers as > there really is only a maximum of 12 satellites that are viewable at any > point in time. > > If you wish to continue this discussion, please send me a private message > at: g.unit89@xxxxxxxxxxxxx > > I am sure this is more than many wanted to know. > > Kevin > ----- Original Message ----- > From: "Scott Granados" <gsgranados@xxxxxxxxxxx> > To: <gps-talkusers@xxxxxxxxxxxxx> > Sent: Monday, October 15, 2007 2:54 PM > Subject: [gps-talkusers] Re: e: My Latest Experience with GPS > > >> So what are they doing with the extra channels? Could you explain if >> it's not off topic a little on how the number of channels improves the >> functionality. Do the birds broadcast more data on more channels or >> what's the deal?:) What does 12 do and what does 20 offer that 12 >> doesn't and 32? Thanks! >> >> >> Thanks >> >> ----- Original Message ----- >> From: "Kevin Chao" <g.unit89@xxxxxxxxxxxxx> >> To: <gps-talkusers@xxxxxxxxxxxxx> >> Sent: Monday, October 15, 2007 2:52 PM >> Subject: [gps-talkusers] Re: e: My Latest Experience with GPS >> >> >>> You are correct in the TTF (time to first fix). The newer recievers that >>> are using the MTK chipset that were introduced towards the end of last >>> year now have 32 channels. Here is what has what in terms of Sendero >>> past receivers: >>> Earthmate Blue Logger, SIRF STAR II, 12 channels >>> Holux GPSlim236, SIRF STAR III, 20 channels >>> Holux M-1000, MTK, 32 channels >>> >>> All of this information along with the TTF can be found in their >>> respective user guide. >>> >>> I didn't list recievers beyond this because I am not sure what they are. >>> >>> Kevin >>> ----- Original Message ----- >>> From: "Scott Granados" <gsgranados@xxxxxxxxxxx> >>> To: <gps-talkusers@xxxxxxxxxxxxx> >>> Sent: Monday, October 15, 2007 1:45 PM >>> Subject: [gps-talkusers] Re: e: My Latest Experience with GPS >>> >>> >>>> Actually, and someone please pipe in if I'm way off but the channel >>>> numbers are 12 or 20. The us-globalsat 338 and 358 are 20 channel >>>> units. >>>> As for the time to fix remember there are different start states for >>>> your receiver so when you power up you may or may not enter a given >>>> start state. A new fix I.E. starting the unit up for the first time >>>> takes a few seconds. Around 40 sounds average. However, from a hot >>>> start state you can sync up in sub 1 second depending. So your time to >>>> aquizition will vary.:) >>>> >>>> ----- Original Message ----- >>>> From: "Ken Perry" <kperry@xxxxxxxxxxxxx> >>>> To: <gps-talkusers@xxxxxxxxxxxxx> >>>> Sent: Monday, October 15, 2007 9:59 AM >>>> Subject: [gps-talkusers] Re: e: My Latest Experience with GPS >>>> >>>> >>>>> >>>>> >>>>> Nod this helps I use the BT 338 and it is rated at 38 seconds but I >>>>> find >>>>> along with the reviews I have read on line I get a fix with in 2 to 3 >>>>> seconds. So I was wondering how they could get faster. I think its >>>>> more >>>>> important to look for the channels which I think is 32 on the Holux >>>>> m-1000 >>>>> where the BT 338 only has 20. I wonder though if it is better than >>>>> the BT >>>>> 338 though because they say the BT can pick up signals as low as 13 DB >>>>> from >>>>> satellites when normal gps receivers are rated at no lower than 20 db. >>>>> I >>>>> couldn't find the db rating for the Holux does it say in the manual? >>>>> I will >>>>> go see if I can find it on line. >>>>> >>>>> Ken >>>>> >>>>> -----Original Message----- >>>>> From: gps-talkusers-bounce@xxxxxxxxxxxxx >>>>> [mailto:gps-talkusers-bounce@xxxxxxxxxxxxx] On Behalf Of Chris >>>>> Grabowski >>>>> Sent: Monday, October 15, 2007 9:05 AM >>>>> To: gps-talkusers@xxxxxxxxxxxxx >>>>> Subject: [gps-talkusers] Re: e: My Latest Experience with GPS >>>>> >>>>> Hi, >>>>> According to the manual the Holux m-1000 cold start is rated at 36 >>>>> seconds. >>>>> The majority of the time, I turn on my m-1000 then the bn then enter >>>>> GPS. >>>>> I normally have a fix quite rapidly after that. >>>>> Hope this helps. >>>>> Chris >>>>> On Mon, 15 Oct 2007 08:45:02 -0700, "Ken Perry" <kperry@xxxxxxxxxxxxx> >>>>> wrote: >>>>> >>>>>> >>>>>> >>>>>>I have seen a few posts about the holux m-1000 and that it would cause >>>>>>better boot up speeds. I am currently not using the Sendero GPS >>>>>>product and am interested in how long it takes for most people to get >>>>>>connected with the satellite. >>>>>> >>>>>>Ken >>>>>> >>>>>>-----Original Message----- >>>>>>From: gps-talkusers-bounce@xxxxxxxxxxxxx >>>>>>[mailto:gps-talkusers-bounce@xxxxxxxxxxxxx] On Behalf Of richard >>>>>>synnott >>>>>>Sent: Monday, October 15, 2007 2:23 AM >>>>>>To: gps-talkusers@xxxxxxxxxxxxx >>>>>>Subject: [gps-talkusers] e: My Latest Experience with GPS >>>>>> >>>>>>Hi Joleen, >>>>>>what receiver are you using? >>>>>>if you're not currently using the holux m-1000, I'm sure this would >>>>>>improve things greatly regarding sattellite tracking, accuracy and >>>>>>boot-up time if you were to acquire one. >>>>>>On the other hand, if you are using the m-1000, I don't know what to >>>>>>suggest other than to say it sounds like a mapping problem. >>>>>>Don't give up, though. >>>>>>All the bestst, Richard. >>>>>> >>>>>>> ----- Original Message ----- >>>>>>>From: Joleen <cjferg@xxxxxxxxxxx >>>>>>>To: gps-talkusers@xxxxxxxxxxxxx >>>>>>>Date: Sun, 14 Oct 2007 18:08:36 -0700 >>>>>>>Subject: [gps-talkusers] My Latest Experience with GPS >>>>>> >>>>>>>Hi All, >>>>>> >>>>>>>Let me share my latest experience with GPS. >>>>>> >>>>>>>Yesterday I was traveling to a camp site where my driver had >>>>>>>forgotten >>>>>>>to bring his map. >>>>>> >>>>>>>With a sense that I could be of real help, I took out my GPS and >>>>>>>created a route from Yakima to Camp Ghormley. I was able to give >>>>>>>directions. At one point, we turned onto a gravel road. It turned >>>>>>>out to be a very poor road with wash-out areas. After traveling >>>>>>>several miles on this "path" my BN announced that we had arrived! >>>>>>>Where were we? No where! The camp was not anywhere around there. >>>>>> >>>>>>>With my hopes dashed, we turned around and made our way back to the >>>>>>>road more traveled. Eventually we found the right turn and I put a >>>>>>>user POI at the camp entrance. >>>>>> >>>>>>>My bad luck again. The actual camp entrance was 3.48 miles from the >>>>>>>GPS location. After this and previous experiences, I now am shy of >>>>>>>using my GPS to do any navigation for others. >>>>>> >>>>>>>Still eager to make GPS work for me, I took time to fire it up as I >>>>>>>was shown from the cabin to the main lodge. Confident that I had >>>>>>>learned well how to create a manual route, I set out. I put in a >>>>>>>series of way points along the trail. All seemed well. >>>>>>>However, after dinner and when it was dark, I found someone else who >>>>>>>was also staying in my cabin. She was not sure of the direction. >>>>>>>Again, I suggested that my GPS could help us in the dark. I started >>>>>>>it up and had to pair the receiver due to a spontaneous BN crash and >>>>>>>reset earlier in the afternoon. >>>>>>>Eventually I was successful in getting the BN and receiver to see >>>>>>>each >>>>>>>other. Then there was a long wait for a fix. My friend remained >>>>>>>patient. Eventually there was success. Now, all I had to do was to >>>>>>>reverse the route. All I could get from it was that I could not >>>>>>>recalculate the route. It was only after I gave up and followed her >>>>>>>guesses that we made our way to the cabin. >>>>>>>There, I worked with it until I realized that I had probably exited >>>>>>>the main lodge at a door different from the one I had set as a way >>>>>>>point. >>>>>>>Both doors would have been on the same side of the building, but I >>>>>>>suspect that they were more than 30 feet apart. >>>>>> >>>>>>>One more try. When I was ready to come home, all I needed was to get >>>>>>>my luggage from the cabin. My driver had not been to the cabin and >>>>>>>there seemed to be no one to ask. Again, I tried my GPS. This time, >>>>>>>I knew it could help because I had a user POI. >>>>>>>It must have taken ten minutes to acquire a fix. Meanwhile, We got >>>>>>>into the car and he drove around trying to spot the cabin. >>>>>>>As we pulled up to it, my GPS announced that we had arrived. It was >>>>>>>too late to be of any benefit this time. He had seen the sign far >>>>>>>earlier than the GPS. >>>>>> >>>>>>>I am afraid my GPS is becoming a source of great humor. No one will >>>>>>>trust it. I am afraid that in my circumstances, I have little >>>>>>>confidence that it can be relied upon for much of anything. >>>>>> >>>>>>>I am grateful that Tele Atlas is looking at the major discrepancies >>>>>>>in >>>>>>>my home town. However, the wilderness areas of Washington state also >>>>>>>seem to be questionable as my trips to two different camp sites in >>>>>>>very different parts of the state have both yielded errors of 3.5 >>>>>>>miles. >>>>>> >>>>>>>Trying to be enthusiastic about my GPS. >>>>>> >>>>>>>Joleen >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> >>>> >>>> >>> >>> >>> >>> >> >> >> > > > >