uwave-4-8-12-neu-d.txt; Issue 17 MAY 2010

Firmware-update description for µwave-4+2, µwave-8 and µwave-12 receivers.

Please use for the update the Akkusoft 2007 [Version 3.2.1.1] or higher.

V 1 - First delivered version for the 2.4 GHz receivers µwave-8 and µwave-12.

V 2  - Solved in V 2 - 27 OCT 2009:
Under some circumstances at the fail-safe programming the LED went off too early.
It was faster than the 10 seconds indicated in the operating instructions.
The function and behavior of the receiver were however not impaired and/or were 
not affected by it (i.e. that the LED had displayed the beginning of the fail-safe
programming too early).
Hint: Because of the fact that there was no problem existing in the µwave-4+2 
no V2 update was available.

V 3  - Improved in V 3 - 04 MAY 2010:
Important Safety Update!
-> Please upgrade yourself your receiver or send it directly to Schulze Elektronik 
GmbH in Weiterstadt for an upgrade.
The recovery function of lost signals was improved.

V 4  - More improvements in V 4 - 12 MAY 2010 
(description for µwave-8 & -12; description for µwave-4+2 below (MAY 17th):
Important Safety Update!
-> Please upgrade yourself your receiver or send it directly to Schulze Elektronik 
GmbH in Weiterstadt for an upgrade.
The µwave-8 will also be hardware modified.
The recovery function of lost signals was additionally improved (0.1 ... 0.5 seconds).

V 4  - More improvements in V 4 - 17 MAY 2010
(description for µwave-4+2, description for µwave-8 & -12 above (MAY 12th)):
a) Important Safety Update!
-> Please upgrade yourself your receiver or send it directly to Schulze Elektronik 
GmbH in Weiterstadt for an upgrade.
The recovery function of lost signals and undervoltage was additionally improved
(0.1 ... 1 seconds).
b) The teach-in of the failsafe positions had not worked precisely, now fixed.

COMMON IMPORTANT HINTS to ensure safe, trouble-free operation:
===>>> 'Self'-made problems which are frequently made <<<===
- A TWO amps BEC system is completely unsuitable for the supply of 6 servos.
- Even a FIVE amps switched BEC is overloaded, when 4 servos are used with 3 amps
  stall current each.
  This applies in particular in a helicopter for the tail servo, which may 
  draw twice of the stall current while reversing (which happend quite often).
  Crest currents up to 20 amps arise in the overall system.
  It is recommended to fly in this case with a buffer battery (See "www.RC-Heli.de").