R F Μtunin G Kit - Yaesu FT DX 3000 Operating Manual

i
nsTallaTiOn OF
The RF µTuning Kits provide ultra-sharp RF selectivity for the front end of the transceiver. Very high Q is made
possible by the narrow-band design. Three RF µTuning Kits are available. The MTU-160 covers the 1.8 MHz band. The
MTU-80/40 covers the 3.5 and 7 MHz bands. The MTU-30/20 covers 10.1 and 14 MHz bands.
The narrow bandwidth is especially useful on the low bands, when many strong signals are being received via NVIS
propagation (Near Vertical-Incidence Signals) within a narrow bandwidth. The added protection for the receiver RF
stages is especially helpful in preventing IMD and blocking.
Installation
Assemble the RF µTuning Unit according to the "RF
µTuning Kit Installation Manual" supplied with the RF
µTuning Kit.
ANT
DC IN
RF Cable
(Supplied with RF µTUNING KIT)
RF Cable (Supplied with RF µTUNING KIT)
ANT
DC IN
Page 132
O
pTiOnal
RF µt
CNTL Cable
(Supplied with RF µTUNING KIT)
Multi Connection
RF Cable*
CNTL Cable*
Multi Connection
a
ccessOries
K
Uning it
Interconnections to FT
Connect each cable (supplied with the RF µTuning
Kit) between the RF µTuning Unit and the FT
Transceiver.
r The RF connecting cables are color
coded (black and gray) to assist in
properly connecting the RF IN and
RF OUT jacks. (See illustration)
r A n i m p r o p e r c o n n e c t i o n w i l l
not damage the RF µTuning Kit.
However, improper operation may
occur.
r Connect the color-coded control
c a b l e ( s ) b e t w e e n t h e C N T L
O U T a n d C N T L I N j a c k s
(see illustration). Confirm all
connections before turning on the
transceiver.
r If the FT
and the frequency display blinks
sometimes, confirm and correct
the "CNTL IN" and "CNTL OUT"
connections on the RF µTuning
Unit.
r The order of connecting multiple
RF µTuning Units is not important.
RF Cable*
CNTL Cable*
RF Cable*
FT
DX
3000
DX
DX
Advice
3000 does not operate
DX
RF Cable* RF Cable*
CNTL Cable*
*: Supplied with RF µTUNING KIT
3000 O M
peraTing anual
3000