venus-os:gx-gsm
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venus-os:gx-gsm [2018-07-26 11:49] – [GX GSM] mvader | venus-os:gx-gsm [2023-01-19 09:47] (current) – Deleted. A new manual has been added to the product page. sloges | ||
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- | ====== GX GSM ====== | ||
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- | DRAFT: function & product not released yet. | ||
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- | ===== Trouble shooting ===== | ||
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- | ^ ^ Step | ||
- | | 1 | Power | Check that the blue LED is either lit continuous or blinking | ||
- | | 2 | USB | The modem must be connected to USB, and visible in the Settings -> GSM modem menu | | ||
- | | 3 | Simcard | (feature is still being added to the software) | | ||
- | | 4 | Signal strength | 15 or higher (and see below table) | ||
- | | 5 | Network | Check that a network name is visible. If it is not, contact your simcard provider and/or insert the simcard in a phone to double check its operation | ||
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- | === Antenna reception interpretation === | ||
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- | Even when there is no simcard inserted, you can check signal strength. | ||
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- | < | ||
- | 0 = -113 dBm or less | ||
- | 1 = -111 dBm | ||
- | 2 = -109 .. -53 dBm | ||
- | 31 = - 51dBm | ||
- | 99 = not known or not detectable | ||
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- | -50 to -75 dBm: high signal | ||
- | -76 to 90 dBm: medium signal | ||
- | -91 to -100: low signal | ||
- | -101 to -120 dBm poor signal | ||
- | </ | ||
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- | You also need to remember that an outdoor antenna typically increases received signal by 15 dB to 25 dB. (verify) | ||
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- | TODO: replace above by something meaning full, ie indicate the signal strenght to the user in such way that he doesn' | ||
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venus-os/gx-gsm.1532598550.txt.gz · Last modified: 2018-07-26 11:49 by mvader