NuPower Xtender™ VU4GX02 User Manual
Rev 1.2
5
2.2
HEAT SINKING
The NuPower Xtender VU4GX02 is offered as a stand‐alone module, or as part of a kit, which also
includes a fan‐cooled heat sink with an AC/DC adapter and an interface cable with banana jack plug
terminations. The fan‐cooled heat sink provides sufficient cooling for operating the NuPower Xtender at
room temperature (25 °C), however higher ambient temperatures may require additional heat‐sinking
to maintain a baseplate temperature below 60 °C at 100% transmit duty cycle.
Figure 3: The NuPower PA Kit offers “out‐of‐the‐box” operation for the user. The fan‐cooled heatsink
with an AC/DC adapter is shown with an example PA (NuPower Xtender not shown).
Caution: The use of external heat‐sinking is required especially for those applications
requiring high duty cycle operation (e.g. continuous wave) or for extended on‐time testing.
Operation without a proper heat sink under these conditions will cause permanent damage
to the product and will void the product warranty.
