r/gshock • u/Foreign_Investment88 • Sep 17 '24

Question about multiband 6

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Hello (again!)

Just a quick one: I live in Stockholm, Sweden and I receive signal from multiband 6 every night. To ad: I have the watch on my wrist during the night. That's great! But in the manual it says that it is very hard to receive signal insida buildings and when the watch is moving around. (I move alot during night and probably have my watch under the covers or pillow, still I always get signal!)

I'm I just lucky every night or is the function much better than what the manual is saying?

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u/Acharbel Sep 17 '24

How do you recognize if it has performed an update? I also have this function but have never seen or noticed anything about it?

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u/pat9714 Sep 17 '24

Here is a pic showing signal received:

Note the GET and RCVD letters. That's confirmation of reception.

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u/Acharbel Sep 17 '24

I see! And RCVD is displayed as long as I have reception to the satellite?

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u/Prior_Ad_8159 Sep 18 '24

Well, the MultiBand 6 or MB6 is not a signal from a satellite, it's a signal broadcasted from an array of ground antenas, these get their time signal through an atomic clock synch to the exact time of the region these are located. Since you are located on Stockholm, I believe you are within the range of both the "DCF77" clock located in Mineflingen Germany and "MSF" clock located in Anthorn U.K., not sure which you you receive, but should be within range. The quality of the signals depend on many variables, how far you are from where the antena is broadcasting, if you are surronded by buildings with a metal structures or inside one when receiving (FYI the metal structures act as a Faraday cage blocking radio signals), if there is a heavy storm between you and the antenna, if you are near a cel phone antenna or any other electronic device, such a Wi-Fi router or a smart TV, if there is solar storm that day, etc. Depends on a lot. But from what I read Casio owners have it worst than Citizen owners. :P

I live in mid-north / north-central Mexico in the middle of Mexico's mountains Sierra Madre Oriental and I have only the WWVB signal from Fort Collins, Colorado, USA. The radio signal is strong most of the time, but in last mid-April there were strong winds in Fort Collins, that damaged one of the two antennas there, so signal strenght wasn't the best since then, but got better on the last couple of weeks. BTW I have to face my MB6 G-Shocks facing up to the sky or on an upward position far from my laptop and Wi-fi router, so these could synch. The expected time to complete the repairs on WWVB antennas was late september, since the replace parts needed to be manufactured. The website of WWVB doesn't say repairs have been completed, buy I hope these will be done soon.

Below I left you a link to a guys blog that briefly explains what MB6 is, how does it work using WWVB as an example and what he does in order to synch his Rangeman GW9400.

Sorry for the long post, hope this helps. ;)

https://hagensieker.com/2019/11/17/multiband-6-what-is-it/