Fm Antenna Connections - Harman Kardon 730 Owner's Manual

TURNTABLES OR
AUTOMATIC CHANGERS
The 730 has provision for connec ting
two record playing unit s. All record
playing units provide two or th ree cables
(aside from the power cord) for connec-
tion to the 730. These are the left and right
channe l sig nal cables and the ground
co nnection. (Some turnta bles combine
the ground con nection wi th one of the
signal cables.) The two sig nal cables are
usually identified as "left channel" and
" rig ht channel" by a color code or tabs , or
the channel identification s are molded into
the insulators around the pin-type RCA
connectors. Determine which of the
cables is left and whi ch rig ht and insert
them into the two correspond ing
recep tac les on the rear panel of th e 730
marked PHONO 1. Press them in as fa r as
they will go so they are seated snugly.
If a separate ground wire 1s prov·ded,
connect its lu g or stripped end under the
knurled nut marked
GND
on the rear panel
of the 730. The phonograph signal
connections are now complete .
If a second re cord pl aying unit 1s lo be
used connect it to the PH ONO 2 inputs in
the same man ne r as the fi rst unit was
connected to PHONO 1.
Note: The 730 is desig ned to ope rate
with a hrgh q uality
Magnetic
car rid ge. If
you purchased ou r 730 and t rn bie
separately , be sure the turn able is
equipped ith cartridge of this type.
lnser t e AC power cord of your
urn tab le into the AC receptac le marked
UNSWITCHED on the rear of t~1e 730. This
re ceptac le is "Ii
e"
so long as the 730
itself is connected to a live AC outlet ,
reg ardless of whether the 730 is itself
o erating . Your turntable or automafc
changers ould be connec ed to his
rec eptacle.
FM ANTENNA CONNECTIONS
A " T"-shap ed, fold ed dipole antenna is
provided with the 730 for FM reception .
However, FM performance of the 730 will
be greatly enhanced if it is connected to
an outdoor antenna system . Man y
apar tment bui ldings in urban areas
provide a master antenna system for
television recep tion which can often be
used for FM purposes. In some suburban
and rural areas, cable television systems
exist that can also be used for FM
reception . In fac t, television antennas on
private houses are often good for FM
reception .
Two type s of wire, 300 ohm and 75
ohm, are used as lead- in for outdoor
an tenna systems . Eith er type can be
co nn ected to the 730. Find the three-
connector term inal strip on the rear panel
of the 730 ma rked ANTENNA
If your lead-in is 300 ohm, it wi ll be a
very flat wire with a conductor at each
edge. Carefully cu t about
1 ½"
of the
insulation material from the center of the
lead -in withou t dam ag ing either
conductor . Strip off about ¾" of insulation
from each condu ctor an d connec t on e of
them to each of th e term inals on the three-
connector ANTENNA strip under the
brac ket labeled 300!1. (The term "ohm"
and the symbol
•ff
' have equivalent
meaning .)
If your lead-in is 75 ohm, you must
use a match ing transformer. The lead-i n
wire will be a sing le round wire with a
termination consi sting of a metal
connector with a short length of bare,
solid , copper-colored wir e protruding
from its center . This conn ector is inlended
to be joined to a 75!1 to 300!1 matching
transformer These tr ansformers are
inexpensive and avai lable at many
le levision or electronic parts supply
stores Once they are joi ned lo the lead-in
they provide two 300 ohm conductors ha t
are connected to the 730 as described
above. If your 75!1 lead-in has a bare end,
the appropr iate conn ector must be
attached to it so that you can use a
· matchi ng transformer.
Where there is only one lead-in nd it
must supply sig nal or both a telev ision
re ceive r an d th e 730 , a sig nal splitter"' or
·· 2-set coup ler" c an be used. Consult your
high fidelity or tel evi sion dealer for
info rmati on on such devices
If no outdoor antenna is available to
you ,
con nect th e lug s of the dipole
antenna to the 300!1 terminals
Th e dipole antenna wrll perform best if
its arms are car fully xtended in a
straight lrne horizon all y, and the en tire
an tenna fi xed to aw II or tac ked to the
back of a shell . Dipoles are most sensitiv e
on the ax is perp end ic ul ar
to
the pl ane of
th e two arms so an tenna position is
important for op timum r cep t1 on.
AM ANTENNA CON NECTIONS
A ferrite loops tick AM antenna is
provided on th e rear of the 730, whic h writ
yield good rec eption in many areas. It can
be or ien ed
to
improve reception of distant
stations. The third terminal of the ANTE N-
NA strip is connec tion for ··ion ire"
AM antenna. AM reception over ex remel y
long d istances can be obtai ed with a
well -des igned long wire ante, na. Many
high fidel ity deal ers, especially those who
have exp erience with amateur and
shortwave radio, can help you with long
wire AM antenna system
WARNING:
DO NOT MISTAKE THE
FERRITE LOOPSTICK AM AN TENNA
FOR A HANDLE. ITS BRACKET
CANNOT SUPPORT THE WEIGHT OF
THE 730. THE 730 SH OULD NEVER BE
LIFTED, PULLED, OR PUSHED BY
GRIPPING THE AM ANTENNA.