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peterantypas / maiana

MAIANA™ is the first Open Source AIS transponder. It proudly raises an extra long middle finger to the marine electronics industry, government overregulation and everything else that gets in the way of innovation in this space.
GNU General Public License v3.0
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LC79H? #117

Closed JosefWN closed 10 months ago

JosefWN commented 2 years ago

Hello Peter, really cool project!

Have you seen the new LC79H from Quectel? It seems to be in the same price range as the one you are using: https://www.quectel.com/product/gnss-lc79h

With it you would have dual-band L1/L5 and could go from an accuracy of 2.5m CEP to 1m CEP, seems to slice the power consumption in half compared to your current GNSS module as well. I'm not an electrical engineer, but it's the one my company was recommended when building something of similar nature.

peterantypas commented 2 years ago

There are two variants of this module and the one in stock is not optimal for a passive antenna design. It needs an xternal front end (LNA+SAW) plus it only works at 1.8V so the HW design would have to change substantially. Is it worth it? Maybe, but I'd like to hear from more folks.

JosefWN commented 2 years ago

Ah, gotcha. Sorry for the stupid question: is the passive antenna requirement a consequence of the tight form factor or to keep the power consumption down?