7-1
About the internal antenna tuner
The internal automatic antenna tuner automatically
matches the transceiver to the antenna within the
UDQJHRIa6:5RIOHVVWKDQ
After the tuner matches an antenna, the latching relay
combinations are memori ed as a preset point for
HDFKIUHTXHQF\UDQJHN+]VWHSV7KHUHIRUH
when you change the frequency range, the latching
relay combinations are automatically preset to the
memori ed point for fast tuning.
• :KHQ\RXLQVWDOODQHZDQWHQQDRU\RXZDQWWR
change the antenna settings, you can clear the all
of the internal antenna tuner preset points with the
³3UHVHW0HPRU\&OHDU!!´LWHPRQWKH781(5VHW
VFUHHQS
MENU
»
6(7!)XQFWLRQ!7XQHU!
Preset Memory Clear
• You can select whether or not to save the internal
antenna tuner’s status after pushing
TUNER
on each
EDQGLQWKH³>781(5@6ZLWFK´LWHPRQWKH781(5
set screen.
S
MENU
»
6(7!)XQFWLRQ!7XQHU!
[TUNER] S itch
NOTE :KHQWKHWUDQVFHLYHUUHFHLYHVDVWURQJSK\VLFDO
VKRFNWKHLQWHUQDOODWFKLQJUHOD\VPD\EHUHWXUQHGWRDQ
unlatched condition. In that case, push
TUNER
to turn
2))WKHWXQHUWKHQWXUQ21DJDLQWRUHVHWWKHDOOODWFKLQJ
relays.
Internal antenna tuner operation
1. Push
TUNER
to turn ON the internal antenna
tuner.
• “TUNE” is displayed when the tuner is ON.
2. Tune the antenna.
LTo tune the antenna, see “Manual tuning” or “PTT
Tuner start” below.
D Manual tuning
You can manually tune the antenna before transmitting
IRUWKH¿UVWWLPH
1. +ROGGRZQ
TUNER
for 1 second to start manual
tuning.
• 7KHWXQHUUHGXFHVWKH6:5WROHVVWKDQDIWHU
aVHFRQGVRIWXQLQJ
L:KLOHWXQLQJDVLGHWRQHLVKHDUGDQG³781(´EOLQNV
red.
2. After tuning, “TUNE” is displayed.
L,IWKHWXQHUFDQQRWUHGXFHWKH6:5WROHVVWKDQ
after 20 seconds, tuning stops and “TUNE” goes out.
D PTT Tuner start
The tuner is always activated when PTT is pushed
DIWHUWKHIUHTXHQF\LVFKDQJHGPRUHWKDQIURP
ODVWWXQHGIUHTXHQF\7KLVIXQFWLRQWXQHVWKHDQWHQQD
IRUWKH¿UVWWUDQVPLVVLRQRQDQHZIUHTXHQF\
L7KLVIXQFWLRQFDQEHWXUQHG21LQWKH³3776WDUW´
LWHPRIWKH781(5VHWVFUHHQ
S
MENU
» 6(7!)XQFWLRQ!7XQHU!PTT Start
NOTE
• ,IWKH6:5LVKLJKHUWKDQDERXWZKHQWXQLQJPRUH
WKDQN+]RQDQDQWHQQD¶VSUHVHWSRLQWKROGGRZQ
>781(5@IRUVHFRQGWRVWDUWPDQXDOWXQLQJ
• ,I\RXWUDQVPLWLQWRDKLJK6:5³781(´PD\EOLQN,QWKDW
case, hold down
TUNER
for 1 second to manually tune.
If the tuner cannot tune the antenna
• 5HSHDWPDQXDOWXQLQJVHYHUDOWLPHV
• (YHQLIWKHWXQHUFDQQRWWXQHWKHDQWHQQDRQWKH¿UVW
tuning, it may success at the second tuning.
• 6RPHDQWHQQDVHVSHFLDOO\IRUWKHORZEDQGVKDYHD
narrow bandwidth. These antennas may not tune at
the edge of their bandwidth, therefore, tune such an
DQWHQQDDVIROORZV
([DPSOH
6XSSRVH\RXKDYHDQDQWHQQDZKLFKKDVDQ6:5RI
DW0+]DQGDQ6:5RIDW0+]
1. 6HW0+]DQGKROGGRZQ
TUNER
for 1
second to start manual tuning.
2. 6HW0+]DQGKROGGRZQ
TUNER
for 1
second to start manual tuning.