Can you elaborate on the accuracy over time

On Thu, Feb 13, 2020, 7:44 PM Steve D <[email protected]> wrote:

>   I guess it all depends on how you do documentation.  Myself, if I had my
> way, I'd probably have our tech's run something like Smartsheet.  Punch in
> customer info, app will grab gps coords from phone, and have them all in a
> handy dandy spreadsheet for your office people to attach to the customer
> file.  Apps like this are flexible in that you can set it up to record
> whatever info you want, and it's (theoretically) easy for the monkeys to
> use if you create forms for them.  See:
> https://www.smartsheet.com/content-center/product-news/product-releases/quickly-capture-share-exact-locations-from-your-mobile-device
> .  If you don't like to pay more monthly fees, I'm sure there are dozen
> sketchier free apps that do the same thing.  (I used to like one called
> Memento until I learned it was made in Russia.)
>
> Hell, I'd not be surprised if Powercode/Sonar/etc start creating something
> like it for their systems.  Or the towercoverage guys (I think they had an
> app anyway?).
>
> As far as accuracy, all phone app's rely on the hardware itself.  If your
> tech's phone is basically a potato, it's gonna be crap, but I think all
> modern phones are pretty decent for GPS accuracy.  50m is a lot of wiggle
> room, and even then, I know android does a pretty decent job just working
> out location just triangulating from cell towers.  Like Bill alluded to,
> GPS takes time to lock in too.  Some people turn off location for
> battery/privacy reasons, but if you leave it on, it slowly narrows down
> your location better over time.
>
> -Steve D
>
> On Tue, Feb 11, 2020 at 3:26 PM Bill Prince <[email protected]> wrote:
>
>> Altitude is the worst measure from GPS. Older Garmin handheld units would
>> vary by +/- 500 feet until they'd been on in a single spot for about 45
>> minutes or so. I just turned on my phone GPS, and it's been running about
>> 70' to 100' too low. It may settle out near the actual altitude, but I
>> don't know how long that will take.
>>
>> I'd use Google Earth for a relatively accurate elevation for a given
>> spot.
>>
>>
>> bp
>> <part15sbs{at}gmail{dot}com>
>>
>>
>> On 2/11/2020 2:17 PM, Steve Jones wrote:
>>
>> Im not worried about altitude, was just looking for an accurate
>> coordinate. Are any phone apps any more accurate than others? is a garmin
>> any more accurate than a phone?
>>
>> On Tue, Feb 11, 2020 at 3:58 PM <[email protected]> wrote:
>>
>>> Garden variety GPS will give you crap for altitude.  GPS in general is
>>> crap for altitude.
>>> Google Earth plus a tape measure is your best accurate solution for less
>>> than multiple thousands of dollars.
>>>
>>> *From:* Steve Jones
>>> *Sent:* Tuesday, February 11, 2020 2:45 PM
>>> *To:* AnimalFarm Microwave Users Group
>>> *Subject:* Re: [AFMUG] App or tool for CBRS GPS
>>>
>>> If I give any variance to the installers, they will push it too far. I
>>> dont care that we get the 50 meters, I want it as accurate as possible. AGL
>>> is fin for guessing, but GPS I want as accurate as possible and within
>>> reason. and documented.
>>>
>>> Im thinking thats also going to be something the SAS administrators will
>>> be offering is the high resolution plotting since they will need something
>>> to market
>>>
>>> On Tue, Feb 11, 2020 at 3:11 PM castarritt . <[email protected]>
>>> wrote:
>>>
>>>> Horizontal accuracy is to within 50M, and if one of my guys has to
>>>> carry his ladder that far from where he parked the truck (which records GPS
>>>> location automatically), I'm sure I'll hear him bitch about it.
>>>>
>>>> On Tue, Feb 11, 2020 at 3:04 PM Ken Hohhof <[email protected]> wrote:
>>>>
>>>>> I guess in theory the SAS might grant you a lower EIRP than it
>>>>> otherwise would if you overstate the height by a meter or two.  Hard to
>>>>> believe that will make a big difference.
>>>>>
>>>>> -----Original Message-----
>>>>> From: AF <[email protected]> On Behalf Of Mark Radabaugh
>>>>> Sent: Tuesday, February 11, 2020 2:24 PM
>>>>> To: AnimalFarm Microwave Users Group <[email protected]>
>>>>> Subject: Re: [AFMUG] App or tool for CBRS GPS
>>>>>
>>>>> Tape measure?   $8/each on Amazon.   They can lose a lot of those.
>>>>>
>>>>> Height tolerance is +/-3M (~9’).    Each story of a house is ~10’.
>>>>> Did they put it on the first, second, or third floor of the house?
>>>>>
>>>>> Mark
>>>>>
>>>>> > On Feb 11, 2020, at 3:11 PM, Steve Jones <[email protected]>
>>>>> wrote:
>>>>> >
>>>>> > Im not looking for a smartligner, we will get one hopefully for base
>>>>> stations
>>>>> >
>>>>> > For the installer, I need something the installer sticks in front of
>>>>> the radio to get the GPS. as I understand it, the AGL.ASL is not accurate
>>>>> from GPS, that needs to be tape measured or range finder.
>>>>> >
>>>>> > Is there an App for a phone that is more accurate than another or is
>>>>> that all dependent on the cell phone itself?
>>>>> >
>>>>> > Is there a fairly inexpensive device thats worth giving a tech to
>>>>> break too?
>>>>> >
>>>>> > Mainly I just want to have a screenshot of a GPS coordinate to
>>>>> attach to the customer file for CPI reference.
>>>>> >
>>>>> > There used to be a WISP app that you put in all your POP locations
>>>>> and it would give you your azimuth and best guess elevation from your
>>>>> current point, I think it even had a pointing arrow that never worked all
>>>>> that well., but I dont recall what was or if it still works
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