Author Topic: 6555 Question  (Read 4027 times)

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Offline Yank61s

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6555 Question
« on: March 18, 2017, 10:25:19 PM »
installed the 6555 last night, install was easy and reporting to the Davis link web site as well as WU. After setup I was looking for my station on Davis link site and noticed my station is showing to be about 6 miles from the actual location. The lat-lon is set correctly in the console, Any one have any ideas??

Offline ValentineWeather

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Re: 6555 Question
« Reply #1 on: March 18, 2017, 10:37:15 PM »
If memory serves they use decimal degrees and not degrees, min, and seconds.
If you have Google Earth you can select this under tools/options or look on the web for decimal degrees locator.
Randy

Offline btw-nc

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Re: 6555 Question
« Reply #2 on: March 18, 2017, 10:54:42 PM »
This is a definite omission in the manual. Another post I found indicated that you should use deg/min/sec so that's the way I went. If I was to use decimal degrees, I would need a negative value and I don't think the console allows that.
Davis 6153 24HR FARS, in service 18MAR2017

Offline Yank61s

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Re: 6555 Question
« Reply #3 on: March 18, 2017, 11:04:02 PM »
Thanks for the info Ill see what I can figure out

Offline ValentineWeather

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Re: 6555 Question
« Reply #4 on: March 18, 2017, 11:27:44 PM »
Weather Underground and CWOP for sure use decimal degrees looks something like this when setting up location. Lat, Lon:   42.80504578, -101.56336975
Randy

Offline Yank61s

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Re: 6555 Question
« Reply #5 on: March 19, 2017, 09:50:30 AM »
I've got it fixed. Thanks for all of the input

Offline dalecoy

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Re: 6555 Question
« Reply #6 on: March 19, 2017, 10:08:24 AM »
I've got it fixed. Thanks for all of the input

To help folks in the future....
What was the problem, and what was the "fix"?

Offline Yank61s

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Re: 6555 Question
« Reply #7 on: March 19, 2017, 10:31:29 AM »
The problem was the location as stated in the first post. The solution was converting lat-Lon to the decimal on the Davis link site

Offline ValentineWeather

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Re: 6555 Question
« Reply #8 on: March 19, 2017, 10:38:47 AM »
The problem was the location as stated in the first post. The solution was converting lat-Lon to the decimal on the Davis link site

It would be less confusing for all since everyone has went with decimal for location on websites if they would do the same with wx station software.
Randy

Offline Billyram

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Re: 6555 Question
« Reply #9 on: March 19, 2017, 10:43:46 AM »
I just checked my location on the station map and it was off about 5 miles or so. I corrected the location by going into the edit mode, clicking on the map and moving the icon to the correct location. This took care of it.
Billy

Offline btw-nc

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Re: 6555 Question
« Reply #10 on: March 19, 2017, 12:07:41 PM »
For those of us just using the console, I assume the units should be deg/min - since you can't enter a negative value for decimal longitude?
Davis 6153 24HR FARS, in service 18MAR2017

Offline ValentineWeather

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Re: 6555 Question
« Reply #11 on: March 19, 2017, 12:22:42 PM »
For those of us just using the console, I assume the units should be deg/min - since you can't enter a negative value for decimal longitude?

Are you saying there is no North, South, East, West options for longitude and latitude? Depending on location negative latitude is below the equator, negative longitude is west of the prime meridian.
Randy

Offline btw-nc

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Re: 6555 Question
« Reply #12 on: March 19, 2017, 12:27:42 PM »
If my decimal coordinates are 36.167 latitude and -81.146 longitude, how can that be entered into the console setup since you can't input a negative number?   That's why I was thinking the console was meant for degrees/seconds.
Davis 6153 24HR FARS, in service 18MAR2017

Offline ValentineWeather

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Re: 6555 Question
« Reply #13 on: March 19, 2017, 12:31:46 PM »
The console doesn't have North, South, East, West options? That's how you add the negative or positive. 
Randy

Offline johnd

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Re: 6555 Question
« Reply #14 on: March 19, 2017, 12:57:35 PM »
For those of us just using the console, I assume the units should be deg/min - since you can't enter a negative value for decimal longitude?

Here's a novel idea: Why not just read the VP2 console manual (assuming it is a VP2, but analogously for a Vue)? It says eg for latitude:

1. Press the < and > keys to move between fields.
2. Press the + and - keys to change the settings up or down.
3. To select between SOUTH or NORTH, press 2ND and then UNITS.

The example given for lat is 37.6 North, so obviously using degrees to 1dp as the appropriate unit. And similarly for longitude.
« Last Edit: March 19, 2017, 01:07:07 PM by johnd »
Prodata Weather Systems
Prodata's FAQ/support site for Davis stations
Includes many details on 6313 Weatherlink console.
UK Davis Premier Dealer - All Davis stations, accessories and spares
Cambridge UK

Sorry, but I don't usually have time to help with individual issues by email unless you are a Prodata customer. Please post your issue in the relevant forum section here & I will comment there if I have anything useful to add.

Offline dalecoy

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Re: 6555 Question
« Reply #15 on: March 19, 2017, 02:25:07 PM »
The problem was the location as stated in the first post. The solution was converting lat-Lon to the decimal on the Davis link site

Translation:  If you have the WeatherLinkIP logger, log into the WeatherLink.com site and refine the location using decimal latitude and longitude.

Offline btw-nc

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Re: 6555 Question
« Reply #16 on: March 19, 2017, 02:35:15 PM »
I did read the manual - thanks for the suggestion. Nowhere does it say which coordinate system to use. However, since we have the ability to select North, South / East, West,  the system should be degrees/minutes.  If using decimal degrees, there is no need to specify these parameters.  See attachment for an example using my location.

Here's a novel idea: Why not just read the VP2 console manual (assuming it is a VP2, but analogously for a Vue)? It says eg for latitude:

1. Press the < and > keys to move between fields.
2. Press the + and - keys to change the settings up or down.
3. To select between SOUTH or NORTH, press 2ND and then UNITS.

The example given for lat is 37.6 North, so obviously using degrees to 1dp as the appropriate unit. And similarly for longitude.
Davis 6153 24HR FARS, in service 18MAR2017

Offline Yank61s

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Re: 6555 Question
« Reply #17 on: March 19, 2017, 02:48:52 PM »
I agree with btw. I started this thread with a simple question and got the answer. Didn't really need the extra BS of a novel idea. Some things don't come as easy to me as does others.
Thanks to all who helped  me figure out and fix my issue

Offline dalecoy

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Re: 6555 Question
« Reply #18 on: March 19, 2017, 02:49:56 PM »
I did read the manual - thanks for the suggestion. Nowhere does it say which coordinate system to use.

...agreed.  It just shows an example that includes a decimal point

Offline johnd

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Re: 6555 Question
« Reply #19 on: March 19, 2017, 03:42:40 PM »
However, since we have the ability to select North, South / East, West,  the system should be degrees/minutes.  If using decimal degrees, there is no need to specify these parameters.

No I don't agree I'm afraid. The N/S and +/- conventions do not, as far as I'm aware, depend on whether decimal degrees or minutes, seconds etc are used. See eg:

https://www.maptools.com/tutorials/lat_lon/formats

where they're regarded as interchangeable when decimal degrees are used.

I don't disagree that it would have been still more helpful if the manual had said explicitly that they were using decimal degrees, but personally I think an example that says '37.6' is fairly unambiguous. There's a decimal point there and no degrees symbol - what else could it have been? 37°60' makes no sense, and if it were just 6' then it would have to have been written 37.06 I guess. But sorry I think I'm labouring the point!
Prodata Weather Systems
Prodata's FAQ/support site for Davis stations
Includes many details on 6313 Weatherlink console.
UK Davis Premier Dealer - All Davis stations, accessories and spares
Cambridge UK

Sorry, but I don't usually have time to help with individual issues by email unless you are a Prodata customer. Please post your issue in the relevant forum section here & I will comment there if I have anything useful to add.

Offline btw-nc

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Re: 6555 Question
« Reply #20 on: March 19, 2017, 04:01:19 PM »
Sorry for the long thread, and I'm glad Yank61s got it fixed!
Davis 6153 24HR FARS, in service 18MAR2017

Offline Scalphunter

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Re: 6555 Question
« Reply #21 on: March 19, 2017, 04:22:42 PM »
Need to use the maidenhead grid system like what is used in ham Radio.

John

Offline dalecoy

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Re: 6555 Question
« Reply #22 on: March 19, 2017, 06:01:12 PM »
Need to use the maidenhead grid system like what is used in ham Radio.

.....which will provide the "accurate" position within about 7.5 miles?????

Offline Scalphunter

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Re: 6555 Question
« Reply #23 on: March 19, 2017, 06:06:49 PM »
No they are  accurate as any other method.  For your info  Canada aeronautical  charts uses it.  I  can take my cords and work  down to hit  what IT should be. Guess this  is something your really not  familar with .  Don't know why dale but you seem to always have an backlash at anything I say Dale.

John

Offline dalecoy

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Re: 6555 Question
« Reply #24 on: March 19, 2017, 06:13:15 PM »
No they are  accurate as any other method. 

From http://www.arrl.org/grid-squares

Quote
An instrument of the Maidenhead Locator System (named after the town outside London where it was first conceived by a meeting of European VHF managers in 1980), a grid square measures 1° latitude by 2° longitude and measures approximately 70 × 100 miles in the continental US. A grid square is indicated by two letters (the field) and two numbers (the square), as in FN31, the grid square within which W1AW, ARRL's Maxim Memorial Station, resides.

Each subsquare is designated by the addition of two letters after the grid square, as FN44ig. These more precise locators are used as part of the exchange in the 10-GHz contest. They measure 2.5 minutes latitude by 5 minutes longitude, roughly corresponding to 3 × 4 miles in the continental US.

My grid square is EM28tw

72, de W5VBQ
« Last Edit: March 19, 2017, 06:16:19 PM by dalecoy »

 

anything