I have a USB GPS (Holux SIRF Star III) that is driving me nuts. It has never worked reliably when connected to my Cerbo GX (running 3.54) yet works flawlessly when connected to my laptop. When connected to the Cerbo, it will occasionally give me a fix that I can see on VRM. I though maybe it was be…

How many satellites does it show in the device?

None. Just shows the GPS connected, but no fix.

If the device is connected to the Cerbo but can’t find satellites that sounds like a GPS receiver issue.

That was my thinking so I plugged it in on my laptop and it is fine there.

Leaving the GPS receiver in the same spot?

Tried multiple locations. Currently outside with a clear view of the sky. If I use my laptop in the same location I get good sentences and $GPGSV sentence shows 7+ sats in view. I am using a USB extension but have tried without and no difference. I did get some data through the Cerbo briefly but at…

That’s odd. I don’t see how a connection to the Cerbo would disrupt the receiver. Is your RV on shore power during the test? Is the receiver plugged directly into the Cerbo or behind a hub? I have a cheap no brand GPS, $19 from Amazon. I was a bit surprised, it gets a fix in the basement of my …

Yes, we’re on shore power but everything runs thru our Multiplus II. I have tried both direct and through the hub, powered and not. It definitely seems to work better without any extensions but is still not great. I am beginning to wonder if my Cerbo has a weak USB driver chip in it. I’m trying to…

I’ve found the Cerbo USB to be pretty robust so far. You could try pulling the shore power connection. Maybe something to do with grounding is messing up the GPS signal?

I’m having a similar (ish) issue. posted here for you to follow, maybe you can try these commands and determine if it’s related. [image] Cerbo - USB GPS Issue - serial-starter.sh Q&A and troubleshooting Hi all, Cerbox-GX Firmware version 3.55 Running into a challenge …

Can't get Cerbo USB GPS working

DIY

unclesudo 27 April 2025 01:10 11

I’m having a similar (ish) issue.

posted here for you to follow, maybe you can try these commands and determine if it’s related.

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Can't get Cerbo USB GPS working

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