Galileo GNSS System: Complete Failure on 11 July 2019

It appears that the Galileo GNSS system has failed (the entire constellation). The official [ status page : ] lists all SV’s as degraded.

The start of the (hopefully temporary failure) is listed as 01:00 11 July 2019 UTC.

The NAGU [ ] has details.

All my test receivers are tracking but not using GAL, I have confirmed similar status in Europe.

This will be a good chance to appreciate the system going forward. Hopefully it gets fixed soon.


Leave a comment

Filed under Uncategorized

End of Customer Support Update

Ref:  [ ]

‘The End of Non-Customer” blog entry that generated the most feedback of any blog entry on this blog. Actually more feedback than all other entries combined.

Most of the new comments are non-customers asking for help with ProMark / MobileMapper 100 / 120 receivers in doing the update! ( Here are my [ step-by-step instructions ]. ) I am deleting these requests because I think they are demeaning to the requesting person. So, in response to a blog entry that says no more endless support for equipment that we did not sell for customers that we will not possibly sell to in the future; the response is demands for more free assistance.

O.M.G. Obviously there is a problem here.

But I want to make one thing clear: if you purchased equipment from iGage we will support you in anyway we can. Don’t hesitate to call us! If you purchase equipment from us, we provide great support.

Again: if you purchased your equipment elsewhere, call YOUR dealer. We are NOT YOUR DEALER. We don’t WANT to be your dealer. You already made this choice, we did not participate in the decision.


1 Comment

Filed under Uncategorized

Fixing Verizon Jetpack and iPhone Issues with Data Collectors

Which data collector you ask? A: all the data collectors that we sell.

Verizon JetPack Issue

Windows Mobile based data collectors have a hard time connecting or staying connected to Verizon Jetpacks (Mi-Fi Hotspots).

More data: customer says “it used to work just fine, but … now it won’t connect or looses connection frequently.”

Apparent answer: Verizon pushed a Firmware update that added or changed the default security or made a change the the protocol implementation.

The Solution: log into the Jetpack as an administrator from a computer. (You can connect by Wi-Fi to the Jetpack, then browse to the address typically. The administrator password is on one of the display screens.)

Browse to the Wi-Fi settings screen, then select the ‘Primary Network’ tab:


Find the ‘Security:’ drop down. It will be set to WPA2. Change it to WPA/WPA2. (Note: None works great, but …). Click on Save Changes.

Item #2: Make sure the SSID is simple. I don’t know what the rules are, but I think it is safe that an SSID like “Mark’s JetPack-01” is not OK. Keep the SSID really simple like “MARKJP” using all upper case letters and numbers with no punctuation marks. (This is especially true on iPhones where the default SSID would be “Mark’s iPhone” but the ‘ (apostrophe) is a multi-byte character that Windows Mobile does not support.

Finally: On the data collector, remove settings for the Jetpack, then reconnect.

Problem solved typically.

But, I don’t know if this makes your Jetpack feel insecure or not. We should worry about that.

iPhone SSID

One some iPhones the default SSDI is the iPhone owner’s name. Like:

‘Mark’s iPhone’

However the “‘” between the k and s is a multi-byte character. Some devices (like the Data Collectors) reduce the apostrophe to a simpler single byte ASCII character. This prevents the collector from reconnecting to the phone.

The solution is to change the SSID of the iPhone to something simple. I reccomend:


No spaces, not mixed case, no spaces, no funny characters.

You can get to this from ‘Settings: General: About …’


Leave a comment

Filed under Uncategorized

Two Feet Forward

Did you watch Dr. Michael Dennis’s ‘Fate of the US-Survey Foot’ webinar? If not, you should. Here is the link:

As always, Dr. Dennis knocks it out of the park. A Geodetic Rock Star. This webinar should be shown at the beginning of every survey course series and every GIS course taught in the USA.


Leave a comment

Filed under Uncategorized

The End of Non-Customer Support

Effective Thursday 18 April 2019 I (Mark Silver) will no longer entertain helping non-customers with issues on equipment that iGage Mapping Corporation did not sell. In addition, iGage will no longer sell accessories, batteries, cables, equipment outside of the United States.

The Back-Story

Since March I have fielded as many as 50 email / phone questions per day from non-customers asking about WNRO (Week Number Roll Over) issues. Since the beginning of April I have gotten over 20 questions per day requesting help with installing updated firmware on receivers, post-processing 1999 dated files. Yesterday I was up until 11:30 pm responding to these queries. Of the 20+ questions yesterday only one was from an iGage customer who purchased the equipment in question from iGage.

Some of the questions come from customers who purchased equipment elsewhere, but have purchased a battery or cable from iGage in the past. Purchasing a cable for a ProMark 500 does not entitle you to support for that ProMark 500 receiver. And if the cable worked when you received it 5 years ago, our warranty has expired and we bear no responsibility for supporting you if it appears to not work today.

All of these non-customer questions share a common thread: the equipment/software was purchased from another dealer who is out of business or no longer will provide support for the equipment that they previously sold.

iGage Customers

If you purchased equipment from iGage, I am happy to support that equipment as best I can (keep in mind that most of the questions at hand are about 7+ year  old equipment.) However, I will ONLY support equipment that iGage sold directly or through one of our sub-dealers. So if you purchased multiple receivers from multiple sources, I am not going to help you with the equipment not purchased here.

What if you are willing to pay for support?

Well, that is great, but I will not support equipment that iGage did not sell. I don’t care if you are willing to pay for support.

An alternative is to return the equipment to the original company and purchase replacement equipment from iGage.


Too harsh of  response? Perhaps, but by continuing to spend 8+ hours per day supporting non-customers I am putting the company that I work for at risk of failure. We survive by selling equipment and providing the best support and service that we can. Please consider purchasing equipment from us if you expect us to provide you support and service.


Filed under Uncategorized

Magellen Professional, Ashtech, Spectra Precision, Spectra Geospatial GNSS Receivers and GPS Week Number Rollover – April 2019

This is an URGENT NOTICE for users of the following GNSS receivers:

ProFlex 500, ProFlex 800
MobileMapper 100, 120
ProMark 100, 120, 200, 220, 700, 800
SP 20, 60, 80, 90m

The notice also includes information for users of:

ProMark 700
MobileMapper 300
EPOCH 10, 25, 35, 50

If you are using any of these receivers, you MUST update firmware prior to April 6th 2019 or your receivers will stop working at (about) midnight UTC the morning of April 7th 2019.

Specific Instructions, with links to updated firmware can be found in this Official Spectra Geospatial ‘Support Note’:


(The following note is from Mark Silver and does not reflect an official position from the factory.)

No official information is available from the factory regarding ProMark 3, ProMark 2 or earlier receivers. Since the ProMark 100 receiver is a descendant of the ProMark 3 and all subsequent devices (ProMark 120, ProMark 500, ProMark 800 and SP80/60) have mandatory firmware updates it is my guess that the PM2/PM3 receivers will fail on rollover. In addition, I believe that the desktop tool ‘GNSS Solutions’ will probably also fail.

Will the failure be catastrophic? Perhaps not. In the case of static files from ProMark 3 receivers it may be possible to ‘fix’ them using a software shim tool to modify RINEX dates.

To put the ProMark 3 in perspective, I do not believe that we have any working PM3’s at iGage to play with at this point (and the search for them may prompt a needed shelf cleaning and subsequent dumpster fill.) I will disclose that I have received more calls from ProMark 3 users worried about WNRO than any other device. So I do realize that there are many PM3’s in daily use.

I would caution everyone that while some receivers have been tested using GPS/GNSS simulators, the process of constructing simulation files is VERY complicated. Normally the simulators use signals that are recorded and then replayed. So there might be additional complications discovered after April 7th.

In any case, I plan to spend Sunday April 7th pulling old receivers and testing them at the office. Hopefully it will be an uneventful, sunny, spring day.

Good tracking to all,

Mark Silver


Filed under Uncategorized

Carlson Formated Argentina IGN GEOID Modelo AR16

He convertido el archivo para usted.

Descargar desde esta ubicación web:

Ambos formatos de Carlson están disponibles, creo que el formato .GSB es superior.

Aquí hay una visualización:


Leave a comment

Filed under Uncategorized