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CHANNEL INSTALLATION PROCEDUR.E
The channel installation requires a channel crystal,
capacitors, coils, and some jumper wires. The exact
value of these parts should be detemined in ac-
cordance with the following instnrctions.
The fomula below is used to determlne the exact
crystal frequencies:
Crystal = Channel frcquency + 10.7 MHz
NOTE:
The specifications for crystals used with the
oven differ from those used without the oven,
so when ordering crystals, please state clearly
thc 8-digit part number 1H...) given in the
Table below, along with the channel ftequen-
cy.
SMPLEX CIIANNELS
Referring to Figure 4, install the crystals into
the sockets on the CARRIER/LOCAL Unit.
Be sure to install the corect crystal in each
socket, according to the channel number. If
theFT-l8oAis equipped with a crystal ovFn,
the CARRIER/LOCAL Unit is located within
the oven.
Unplug all connectors on the RF unit, un-
screw the four mounting screws, and rcmove
the RF Unit from the chassis.
Referring to Figures 5 and 6, notice that each
of the six channels has two transformers,
together with their associated capacitoA,
which must be selected to correspond with the
desired channel frcquency. Obtain the corect
values for these ttansfomers and capacitors
from the BAND TABLE on page 44, and
install in the correct locations on the RF Unit.
2.
3 .
1 .
CH6 simplex or CH3 TX only
CHs simpl€x or CH2 TX only
CH4 simplex or CHl TX only
Those locations us€d
{or TX crystals for
s€mi-duPlex channols
CH3 simplex or CH3 RX only
CH2 simplex or CH2 RX only
CH1 simplex or CHI RX only
These lo€ations used
for RXcrystals for
semi-duplex channels.
CRYSTAL TOCATIONS
Figure 4
CRYSTAL DATA
x6ofi
H0 !0 : 38 7
X 6 00 1 X 60 0/ i
Iror,-,::re l
x60l
l-xuor xooi
H0t0: 39 0
Iloldcr
I HC4ljjU
IIc-:l:lU
IT
Fr c. r uc tr u y
I 10 .7 Mllz
C l l + l0 i ( ! l I I 7)
( l l.l i u H z ro
l 0 7 N i H z
C H + 10. I (i I l l z)
( 1: . 1 M I IZ i .
: l l . 7 v Ik )
( l l.l i u H z ro
1 8 .7 N l Hz )
f-.,.-*
r .*^....-- t
l r
-
FuD J i nr Lf tc l
Fr rr d
'N ntJ l
, . " *
]
" *
llo t
Ilo tl e
futdinr. nt .l
l l D donc nhl
t
' r ' J
\. ,r 1J ! rr J rc c
I
:.r 1l
:'P F
lesr thxr 40o
llss lhnn ,10!2
F r equ enc r t o lc rln c e ] i5 0 llz
I ' l o t
p ' n
f R quc ,R \
" tJ b ilitr |
!ln pp mr
l 0 " cn ' 5 0' cr
] ,.u
fr * *
fio"'
l-r4l
!0 . l 5 ppm r' C ( ? 0' ( t o 80" C )
14 DF
i :6 Dt-
F
.l 4 l'F 1 0l pF |
5l'F, OiI F
Pr r a lte lcu Fic itan cc
34 DfI0lp F
5pFI05pf
|
. r v! i!.\h r . i
l.s. th ., 4 0 J]
l s\ I [ rn 4 0
U , \. .r ( 1
l r..\
n\ e n t c mN rJ r ur e
7 5" C 1 3 ' C
3 8
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