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Add power limit for TW region (#3701)

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The TW region had now power limit set, so defaulted to 16dBm.

The relevant regulation is section 5.8.1 of the Low-power Radio-frequency Devices Technical Regulations, which notes the limits of  0.5W (27dBM) indoor or coastal, 1.0W (30dBM) outdoor.

This patch updates the power limit to 27dbM, using the the lower limit specified in the regulations to be conservative.

Regulation references:
https://www.ncc.gov.tw/english/files/23070/102_5190_230703_1_doc_C.PDF (latest English version)
https://gazette.nat.gov.tw/egFront/e_detail.do?metaid=147283 (latest Chinese version, February 2024)
This commit is contained in:
Tom Fifield 2024-04-23 20:11:22 +08:00 committed by GitHub
parent d0e81b9151
commit 7acaec8ef5
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1 changed files with 6 additions and 3 deletions
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9
src/mesh/RadioInterface.cpp
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@ -76,9 +76,12 @@ const RegionInfo regions[] = {
RDEF(KR, 920.0f, 923.0f, 100, 0, 0, true, false, false),
/*
???
Taiwan, 920-925Mhz, limited to 0.5W indoor or coastal, 1.0W outdoor.
5.8.1 in the Low-power Radio-frequency Devices Technical Regulations
https://www.ncc.gov.tw/english/files/23070/102_5190_230703_1_doc_C.PDF
https://gazette.nat.gov.tw/egFront/e_detail.do?metaid=147283
*/
RDEF(TW, 920.0f, 925.0f, 100, 0, 0, true, false, false),
RDEF(TW, 920.0f, 925.0f, 100, 0, 27, true, false, false),
/*
https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
@ -586,4 +589,4 @@ size_t RadioInterface::beginSending(meshtastic_MeshPacket *p)
sendingPacket = p;
return p->encrypted.size + sizeof(PacketHeader);
}
}