CHA LRT
Page
10
See the
HF Portable Loop Antenna 3.0 (CHA F-
LOOP 3.0) Operator’s Manual
for a complete description
of how to tune the Loop Antenna.
Summary: P
ress the “
<<
”
and
“
>>
” button
s on the Remote Tuning Unit until maximum signal strength is
received. You will know when you are close to resonant frequency because there will be a marked
increase in receiver background noise you will start hearing received signals. P
ress the “
<
”
and
“
>
”
buttons to see which direction reduces the SWR. Continue pressing the single step button that initially
reduced the SWR until SWR is at a minimum.
The Remote Tune Unit comes with a 9V battery installed. To replace the battery:
1.
Press the ridged area on the battery cover and slide off the battery cover.
2.
Pull the battery out of the holder.
3.
Carefully disconnect the battery from the battery connector.
4.
Replace the battery with a high-performance Alkaline or Lithium 9V battery.
5.
Replace the battery cover.
Troubleshooting
1.
Ensure the RTU Cable is connected to the Remote Tune Unit and Motor Assembly.
2.
Replace the 9V battery.
3.
Press the “
<<
”
and listen for motor noise.
4.
Press the “
>>
” and listen for motor noise.
5.
If you did not hear motor noise in either of the preceding two steps, contact us for technical
support.
Preventive Maintenance
Remove the 9V battery if the Loop Remote Tuner is not going to be used for an extended period of time
to prevent damage from battery leakage.
Specifications
•
Frequency: One Step/Increment (
“
<
” or “
>
”
), approximately 12 KHz at 15 MHz.
•
Power: 9V DC internal replaceable battery.
•
Remote Operation: Maximum of 20 ft. from operating position.
•
Dimensions: Remote Tuner Unit: 4 5/8 in. x 3 1/8 in. x 1 in. (H x W x D). Motor Assembly:
projects 4 1/2 in. from Tuning Unit, 1 3/8 in. diameter.
