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opencomputeproject / Time-Appliance-Project

Develop an end-to-end hypothetical reference model, network architectures, precision time tools, performance objectives and the methods to distribute, operate, monitor time synchronization within data center and much more...
MIT License
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Unknown connector #18

Closed wisxxx closed 3 years ago

wisxxx commented 3 years ago

What is this external connector? It isn't in the schematic, but seems to be associated with the GNSS receiver.

conn_unk

ahmadexp commented 3 years ago

That is a simple RF proto module which allows you to build all kinds of filters, attenuators, etc... At the moment I have a pass through (just a wire) inside it. This was place there because we are planning to use an active antenna (GPS-OVER-FIBER) and that will require an attenuator (-30db) on the line to avoid receiver [input](Screen Shot 2021-08-17 at 5 47 18 PM) saturation.

Screen Shot 2021-08-17 at 5 57 26 PM
wisxxx commented 3 years ago

Thanks. It seems then that I could use a simple SMA/SMA (or SMB/SMB) pass-through connector if I have a powered patch antenna a run of low-loss cable.

ahmadexp commented 3 years ago

That's right. I have done that too.

Screen Shot 2021-08-17 at 5 59 20 PM