View source for EzUHF radio control system

The ImmersionRC EzUHF is a 433MHz wireless control system. Suitable for long range and critical remote control situations.

* [http://www.immersionrc.com/EzUHF.htm ImmersionRC EzUHF product page]

== EzUHF transmitter ==
* Purchase date: 2012-08-22
* Transmitter ID: 985
* Stock firmware version: 1.25a (6)
* Upgraded firmware version: 
* Frequency band selected: 436-438MHz

== EzUHF receiver ==
* Purchase date: 2012-08-22
* Channels: 8
* Diversity: two dipole antennas
* Stock firmware version: 1.24 (6)
* Upgraded firmware version: 1.25a (6)
* Frequency band selected: 436-438MHz

== Spectrum Norway ==
The spectrum space in Norway follows most of the European line of distribution. The entire 430-438MHz band is dedicated for amateur use.

* [http://www.npt.no/iKnowBase/Content/Frequency_allocations_NORWAY.pdf?documentID=49095 Frequency allocations Norway] - pdf

== Equipment ==
[[Image:ezuhf_boxes.jpg|400px]]
 
Content:
* all needed

== Drivers ==
The driver install is not straight forward, at least not on Windows XP. The USB driver failed to install and a manual driver update had to be done, poin the path to ''c:\Program Files\ImmersionRC\ImmersionRCTools''.

== Software ==
The ImmersionRC software is quite good and fairly straightforward. The receiver tab include a simplified spectrum analyzer, very useful to determine if the RF environment.

[[Image:ezuhf_spectrum_analyzer.png|400px]]

== Firmware upgrade ==
The firmware upgrade process is simple and recommended to keep the units up-to-date. Make sure to test the units properly after upgrading the firmware to find any new quirks.

Transmitter:

# Remove the antenna, switch the power switch to High and hold the pushbutton
# Plug in the USB cable and install the new Immersion RC Custom USB Device driver
# The red LED should start blinking
# In the IRC tool, the Update Firmware button should now be activated, uncheck Preserve Configuration for a full restore
# Pick the correct .fw-receiver firmware (Tx500) and upload the code, should take about 10-20 seconds
# Mount the antenna and re-plug the USB cable to load the new firmware, configure it using the IRC tool
# Lastly, enter firmware mode again and hit Fix Fuses to make sure everything is set up

Receiver:

# Hold the pushbutton next to the servo-headers using a plastic tool
# Plug in the USB cable and install the new Immersion RC Custom USB Device driver
# The red LED should start blinking
# In the IRC tool, the Update Firmware button should now be activated, uncheck Preserve Configuration for a full restore
# Pick the correct .fw-receiver firmware (Rx8ch) and upload the code, should take about 10-20 seconds
# Unplug the USB cable and re-insert it to load the new firmware, configure it using the IRC tool
# Re-bind the receiver with the transmitter
# Lastly, enter firmware mode again and hit Fix Fuses to make sure everything is set up

== References ==
* [http://flitetest.com/articles/Long_Range_Systems Long Range System review]