messages will be sent,
8.9.2. Telemetry reports / Analog channels
This Tab defines 5 analog channels available in APRS telemetry reports. You can
select many different sources for channels data, including external WXTelemetry module
data (M), other external devices data (E) and device internal data (I).
•
“Name”
- short name for the channel, length is limited by APRS standard and is
different for different channel numbers,
•
“Units”
- short name for units of data for the channel, length is limited by APRS
standard and is different for different channel numbers,
•
“Source”
- most important field, specifies what data will be send for particular
channel, (M) sources are associated with WXTelemetry module and (I) sources are
associated with device's internal statistics and measurements,
•
“Coeff A”
,
“Coeff B”
,
“Coeff C”
- these coefficients tell recipients of the
telemetry reports how to decode analog value in following form:
value = A*data*data + B*data + C,
•
“1 min average”
- only functional for external telemetry module data (M),
defines if reported values are averaged or not,
•
“Default parameters”
– you should click this button after you change data source
for the channel. It loads default coefficient values and name/units for a channel.
Important note: If you change “Source” field for a channel, you also need to change
“Name”, “Units”, and “Coeffs” fields. Otherwise everyone else who receive your data
(including web services like aprs.fi) will not be able do decode your reports properly.
Every source has its own coefficients, names and units. With USB Configurator you can
get default settings by clicking on “Default parameters” button. When changing
configuration via WWW you need to set these fields manually (you can always write
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