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Initial entry, specs, some connectors, CPU/RF chip
The LMS-6 Radiosonde is a radiosonde manufactured by Lockheed-Martin Sippican, and used for meteorological sounding.
<br />
== Overview ==
There are two models of the LMS-6, a 403MHz model and a 1680MHz model. This article will cover the 403MHz model unless specified.
<br />
== Specs ==
* 16 Fixed transmit carrier frequencies (MHz): 400.250, 400.625, 401.000, 401.375, 401.750, 402.125, 402.500, 402.875, 403.250, 403.625, 404.000, 404.375, 404.750, 405.125, 405.500, 405.875
* Frequency tolerance +/-30ppm
* Mean TX Power 70.8mW (18.5dBm)
* Emission Designator 16K8F1D
* FSK with a maximum modulating frequency of 4.8 kHz
* Emission 3dB BW +/-5.0 kHz
* Emission 20dB BW +/-12.7 kHz
* Omnidirectional antenna
* Main beam gain 2dBi
* Horizontal Beamwidth 360 degrees
* Vertical Beamwidth +84 degrees
Source: https://apps.fcc.gov/els/GetAtt.html?id=121623&x=.
== Photos ==
<br />
== Connectors ==
sens 1 - NC (7-pin) (baro?)
sens 2 - RH
sens 3 - standalone TC
sens 4 - RH TC
Card edge - 40-pin, looks like ISA spacing
J1 - 4 pin 0.1
- 1 - Black
- 2 - White
- 3 - Red
- 4 - NC
J4 - NC - earphone jack? uses SENS3 leads
J5 - 4-pin 0.1 - to U3 (STM)
SP1 - 2x4pin 0.1 - tu U14 (SPI mem?)
== Components ==
GPS - Trimble 63530-50 s/n 1190122906
<nowiki>https://www.trimble.com/embeddedsystems/copernicus2.aspx</nowiki>
U3 - 72F324J6T6 - ST72324 - Main Microcontroller, ST7 series
U21 - TI/Chipcon CC1050 (TSSOP 24)
== Circuits ==
RF from CC to Ant1 - coming soon
<br />
== Overview ==
There are two models of the LMS-6, a 403MHz model and a 1680MHz model. This article will cover the 403MHz model unless specified.
<br />
== Specs ==
* 16 Fixed transmit carrier frequencies (MHz): 400.250, 400.625, 401.000, 401.375, 401.750, 402.125, 402.500, 402.875, 403.250, 403.625, 404.000, 404.375, 404.750, 405.125, 405.500, 405.875
* Frequency tolerance +/-30ppm
* Mean TX Power 70.8mW (18.5dBm)
* Emission Designator 16K8F1D
* FSK with a maximum modulating frequency of 4.8 kHz
* Emission 3dB BW +/-5.0 kHz
* Emission 20dB BW +/-12.7 kHz
* Omnidirectional antenna
* Main beam gain 2dBi
* Horizontal Beamwidth 360 degrees
* Vertical Beamwidth +84 degrees
Source: https://apps.fcc.gov/els/GetAtt.html?id=121623&x=.
== Photos ==
<br />
== Connectors ==
sens 1 - NC (7-pin) (baro?)
sens 2 - RH
sens 3 - standalone TC
sens 4 - RH TC
Card edge - 40-pin, looks like ISA spacing
J1 - 4 pin 0.1
- 1 - Black
- 2 - White
- 3 - Red
- 4 - NC
J4 - NC - earphone jack? uses SENS3 leads
J5 - 4-pin 0.1 - to U3 (STM)
SP1 - 2x4pin 0.1 - tu U14 (SPI mem?)
== Components ==
GPS - Trimble 63530-50 s/n 1190122906
<nowiki>https://www.trimble.com/embeddedsystems/copernicus2.aspx</nowiki>
U3 - 72F324J6T6 - ST72324 - Main Microcontroller, ST7 series
U21 - TI/Chipcon CC1050 (TSSOP 24)
== Circuits ==
RF from CC to Ant1 - coming soon