Harman Kardon 730 Owner's Manual page 8

RECEIVING FM BROADCASTS
Five ba sic c on trols are used to rec eive
FM b road cas ts throu gh the 730
FUNCTI ON , VOLUME, BALANCE,
an
FM MUTING.
Make the followin g
ad1 ustmen s to these controls a ter
ac tI ating the SPKRS-1 sw itch :
(1] FUNCTION -FM
[2 ]
BALANCE - N eutra l ( 12 o'clock )
[3] FM MUTING - Out
[4]
Tuning - Use thi s control to
move the d ial point r
to the ex re me end of
th e dial scale
[5]
VOLUME
- Ad vanc e until hiss
is au d ible
[6]
MONO - Out
You shou ld now hear mild hissing or
r shing soun d -this is tmospheri c noise
p1cke up by the tuner sect ion. Dep ress
the FM MUTING button an d the noi se
d isap pea rs: it h s been mu ted . Turn the
tu ning knob
111
either directi on un ii a
bro adcast signal is rece ived. Th e
FM
MAX QUI ET meter should have deflected
and shoul d now be registe ri ng the relative
quality of th e FM sig nal you are receiving .
Note that the me er defl ects to the lelt in
an increa sing deg re e as signal quality
im proves . Maximum obtainable deflection
to the left repres en ts th e best listening
point. · If the broadcast is in stereo, th e red
STE RE O beac
on Is
lit:
the beacon does
not light wh en an FM stati on is
broad cast in g mo noph on ica ll y. If you have
a srereo station tu ned press th e MONO
switc h in .
* Co ventional signal s treng h or cen ter
channel meters sim ly ind icate the
s eng th of a signal an d pas s band
ccur cy. Harman Kar don·s extraordinar y
Ou1e t1ng meter ac tually indic ates he
sign al-to-noise ratio or the qua lity of the
received sig nal.
Th e 730 is now receiving the stereo
broadcast monophonic ally. In add ition .
th e red STEREO beacon light is d isabled
Thi s feature is useful for weak stereo
stations where reception is accompanied
by a large amount of nois . The program
can be received monophon ic ally without
the noise. Very weak monop hon ic stations
may be re ceived if
FM MUTING
is
defeated, but tu ning fr om s tation to station
is no longer noise- free .
The upper dia l scale of the 730 is
calibrated for FM broadcast stat ion
frequencies fr om 88 to 108 MHz. Eac h FM
station in your area has an ass ig ned
frequency that I alls within thes e li mi ts. You
can use the illumina ted dial pointer and
scale of the 730 to find any station in your
area if you know the assigned frequency.
Similarly, the lower d ial sca le is c alib rated
for A M siations In your area. whi ch have
assigned freq uencies rang ing from about
550 kHz to 1600 kH z. Note that when an
AM station is being tuned in the FM MAX
QUIET mete r d efle c ti on is from left to
right. In other words th e best listening
point is w hen th e meter is as fa r to the right
as possible. For convenience, a third
" logg ing " scale with arbitrary numbers
from 0-100 is prov ided so you can simplify
the ask of memorizing the various
assigned frequency numbers of the FM
and AM stations in you r area. Witr1 :he
logg ing sca le , a ll you need remember is
that your favorite FM station is at 80 on the
logging sca le, se lec t FM, tune to 80, and
listen .
The preced ing examples give you a
working fam il iar ity with the rImary
controls of the 730 .
3
Muting Adjustment
The MUTE ADJ control on the rear
panel controls the signal th eshol at
whic h muting ac tion takes pace when t e
FM MUTING push button Is activated . The
control has be n set at ou r fa c tory to
accommod ate the major ity of FM
rec eption co d itions . If you wish to
re ad1ust this control, depress the FM
MUTING pushbutton and tune away from
any station. Turn the MUTING ADJ control
u ntil the interstation noi s (hiss)
d isappea rs.