== Using Altus Metrum Products
ifdef::radio[]
+
=== Being Legal
In the US, you need an
link:http://www.altusmetrum.org/Radio/[amateur radio license]
or other authorization to legally operate the radio
transmitters that are part of our products.
+
endif::radio[]
In the rocket itself, you just need a flight computer
and a single-cell, 3.7 volt nominal Li-Po rechargeable
battery.
- ifdef::telemetrum,telemega,easymega[]
+ ifdef::telemetrum,telemega,easymega,easytimer[]
An 850mAh battery weighs less than a 9V
- alkaline battery, and will run a TeleMetrum, TeleMega
- or EasyMega for hours.
- endif::telemetrum,telemega,easymega[]
+ alkaline battery, and will run a TeleMetrum, TeleMega,
+ EasyMega or EasyTimer for hours.
+ endif::telemetrum,telemega,easymega,easytimer[]
A 110mAh battery weighs less
than a triple A battery and is a good choice for use
with