Kenwood AT-120 Operating Manual page 2

FEATURES
The Model AT-120 is designed to satisfy your 1. The AT-120 is a high performance HF antenna
antenna-tuning requirements. The AT-120 has tuner and is a modification of thie popular
been manufactured the quality and performance AT-200 antenna tuner. The AT-120 is smail
that makes Kenwood ''The Pacesetter in Amateur and light, and is suitable not only for opera-
Radio". tion in your HAM shack but also for mobile
This unit has been carefully engineered and manu- of field operation.
factured under rigid quality standards, and should 2. The AT-120 consists of an antenna coupler, an
give you satisfactory and dependable operation SWR meter, and an antenna switch.
for many years. 3. The AT-120 is designed to be used on the
Should any trouble arise with this unit, please Amateur bands between 3.5 MHz and 30 MHz.
contact your dealer, the nearest KENWOOD 4, Antenna MATCHING or THROUGH opera-
service facility, or the factory. tion is BAND-switch selected.
5. The SWR meter operates in both THROUGH
AFTER UNPACKING \ and MATCHING modes.
Shipping Container: Save the boxes and packing 6. A mounting bracket is included for mobile
in the event your unit needs to be transported operation.
for remote operation, maintenance, or service. 7. The panel meter can be illuminated by an
The following explicit definitions apply in this external power source.
manual. 8. The antenna matching circuit is effective in
NOTE: If disregarded, inconvenience only. reducing TVI since it acts as a band-pass
No risk of equipment damage or per- filter.
sonal injury.
CAUTION: Equipment damage may occur, but
not personal injury.
CONTENTS
AT-120 Specifications .......... 00 ae 3
Section 1. Preparation for Use.......... 4
Section 2. Controls and their fucntions ....5
Section 3. Operation ........ 0.0.0 6
Section 4. Circuit Description .......... 9
Section 5. Additional Information ..... 10
Schemaict Diagram ..........-2 0000 11