Power Control
The power control is the other blue trimmer potentiometer. It is set fully clockwise from
the factory for maximum power. This trimmer sets the gate voltage on the amplifier
module to allow power control over a wide range, but it is important to remember that
this controls’ range is all within a few degrees of fully clockwise. Power adjustments are
best made using a wattmeter and dummy load. The power adjustment may also be used
when programming your MT-AIO with your computer. Turning the power all the way
down will minimize problems in programming caused by RF energy “swamping” your
computer or USB to serial adaptor.
Antennas
The Micro-Trak AIO is shipped with a high quality 2 Meter whip antenna. For portable
use, this is a great option. Take care not to bend the base of the antenna, as this can result
in a cracked enclosure or broken PC board. External antennas may be utilized, but care
should be taken to ensure that the SWR is within best practices, and that the antenna is
not in too close a proximity to other transmitters or static fields, as this can damage the
final amplifier. Operating without an antenna will destroy the final amplifier. For this
reason, final amplifiers are not covered under warranty, and repairs will be subject to
parts and bench tech costs.
Status LED
A single bi-color LED is used to show the status of the unit. Immediately upon start up,
the LED will flash a pattern of red and green, indicating that the unit is starting up and
internally resetting. If this pattern continues without stopping, this is an indication that
something is wrong, such as a low battery state or excessive SWR. The single pulse of a
red signal indicates that the unit is sending a transmission. A blinking green indicates that
the unit has switched on the GPS and is waiting for it to lock onto the GPS satellites.
When the GPS locks on solidly, the TT3 processor will allow the transmitter to send its
data out over the air, causing the GPS green indicator to switch off. In some cases, the
GPS LED will remain lit until the next timing cycle. This is normal, and is an attempt by
the TT3 to verify good GPS data.
Содержание Micro-Trak All-In-One
Страница 9: ...Schematic...
