Recent content by DaveInDenver

CTCSS is continuous tone-coded squelch system and DCS is digital code squelch. They can be single transmit or receive or both on TX and RX. The difference is CTCSS is analog (and is the same thing as PL Tone, which is Privacy Line, a Motorola trademark) and DCS is digital codes instead of a...

I need to be clear, Canada has a FRS/GMRS, just that a U.S. GMRS license (all Part 95 radios, CB, FRS, GMRS) doesn't grant any authority and the radios aren't the same. On the air the differences aren't that great so it's a letter of the regulations situation. The radios need to carry an...

Canada has the General Radio Service, which is the same channels as the U.S. 27 MHz CB. As I understand them the rules up there are as loosely enforced as they are down in the States. You used to have to get a temporary operating license even for CB. You can talk to Canadian CB'ers across the...

CB, GMRS and FRS are essentially only in the United States. There are similar services and even sometimes on similar frequencies in other counties but the rules differ and the radios are not the same. If you want to be legal you have to follow the rules of that country. Maybe this only...

I guess I'm confused then since asking about country of origin is usually a question workers rights and environment not a technical one. Perhaps intellectual property theft straddles both. The actual quality of what they make varies too much from world class to pure crap to make a blanket...

Where exactly was the red dot sitting when you saw 147°? Can you put your hand on the spot? What chargers are running? Just the Victron shore, right? I have my doubts the battery case measured that hot because that would imply the plates inside were much hotter than this. My first thought...

Country of origin is certainly a political point. But most of the radios your cops and fire departments are using are made in Malaysia and have been for a long time (Motorola, Kenwood, Vertex). I like that GME has managed to keep everything in one place but ultimately the widget has to be...

FYI the website is https://gmeus.com/ I agree, having a major brand alternative to Midland should be good for the U.S. GMRS users. I'm not anti-Midland but more options is welcomed, especially as it comes to advanced users who might want flexibility with tones, bandwidth and using repeaters.

The reason you don't usually see fuses on communication lines is they are not getting power directly from a source. There's a circuit driving the line that is inherently power limited, you're looking at a few tens of mW of power. It's basically impossible to burn up a signal wire from the...

Are you suggesting on capacity or lack of a fuse? For reference Victron says <1mA draw, 1A is the smallest ATC/ATO, just sayin'.

There's nothing wrong with overkill but just know that fuse type selection is subject to some engineering discretion. The underlying suggestion for using a class T fuse is based on the very low internal resistance of lithium chemistry which leads to a characteristic that they can source a great...

Going straight to the battery post is fine. As you point out space is the limitation. As you build up more accessories you usually end up with a tiered approach. A few heavy cables on the battery that feed distribution bars or fuse blocks. It's easier to plan for it up front instead of...

FWIW, found the GM document showing how to install the factory Comeup winch. https://comeupusa.com/userfiles/files/download/D00INFZL030.pdf Looks like they use a special MEGA type fuse harness that sits on top of the battery aside the hold down bracket to get power to the winch and connects...

The aux relay box @Verkstad mentions is this: https://www.shopchevyparts.com/chevrolet/2024/colorado/electronics/2024-colorado-accessory-power-distribution-fuse-box-relay-center-under-hood-p-92331103.html It looks like it includes a fuse tap and 60A fuse. So electrically what you've got is...

I found the 2023 Colorado upfitter guide. https://www.gmupfitter.com/wp-content/uploads/2023/01/23Colorado_Electrical_Body_Builder.pdf This is what that fuse box is doing. It's the main distribution for power in the truck.