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(75 eller
300
ohm) skal tilslutningen foretages
til
enten bosning
)
eller
©.
AM-antenner
Den indbyggede ferritantenne
vil
medfore tilfreds-
stillende modtagelse
af
staerke, lokale stationer.
I
yderkanten
af
senderens daekningsomrêde eller
i
bygninger
af
beton, hvor tilfredsstiilende
mod-
tagelse ikke
kan
opnas
med den
indbyggede
ferritantenne, skal
en
udendors AM-antenne tilslut-
tes terminal
®,
maerket'Y'.
En
jordforbindelse
kan
tilsluttes
til
'i'-siden
af
denne terminal.
Betjening
Tsend
for
apparatet
med Q.
Indstilling
af
FM-stationer
Nedtryk FM-omskifter
®.
Opsog
den
onskede station
med
sogeren
@.
Under opsogningen bliver stoj mellem stationerne
automatisk reduceret
til en
acceptabelt niveau.
Indstillingen
er
optimal,
og
opsogningen indstil-
les
nar
farven
i
lysviseren
®
andres
fra rod til
gron.
Et servokredslob
vil
automatisk soge
ind til
statio-
nens centerindstilling
og
fastlases
i
denne position.
Bemaerk:
Denne funktion virker ikke
ved
mod-
tagelse
af
svage stationer.
Tekniske
data
(Ret
til
sBndringer forbeholdes)
FM-delen
Belgeomréde: 87,5-108 MHz
Antenneindgang:
75 ohm coax
300 ohm balanceret
Folsomhed ved 75 ohm:
mono, 26 dB S/N: 1 ^V ved 75 kHz afvigelse
stereo, 46 dB S/N: 25 ij.V ved 75 kHz
off
resonance
Selektivitet: 50 dB ved 300 kHz
off
resonance
Tota! harmonisk forvrsengning:
mono 0.18% (DIN)
stereo 0.35% (DIN)
Frekvensgang:30-15.(X10Hz, ±1,5 dB
Signal/st0j-forhold:
mono, 75 dB (IHF)
stereo, 72 dB (IHF)
Pilottone-undertrykkelse: 32 dB (IHF)
Stereoadskillelse (1 kHz): 35 dB
AM
undertrykkelse: 50 dB
IF
undertrykkelse: 70 dB
Spejlfrekvensdaempning: 40 dB
Lyd-udgang (100% modulation):
1
V
MB/LB-delen
Bolgeomréder:
LangbBige 150-255 kHz
Mellembolge 520-1605 kHz
Folsomhed: 100 i^V
for
26 dB S/N (600 kHz)
Selektivitet:
35
dB
for 9
kHz
off
resonance
Lyd-udgang (30% modulation): 300 mV
Modtagekvallteten
af
FM-stereoudsendelser
af-
hffinger
i hoj
grad
af
antenneslgnalets styrke.
Med
et kraftigt signal
fra
FM-antennen
vil
stereoudsen-
delser gengives
i h0j
kvalitet
og med
ringe
bag-
grundstoj,
og
indikatoren
@
vil lyse. Hvis signalet
er
svagt, ville stojniveauet normalt stige,
og
delvis
Odelffigge programmets indhold.
I
dette apparat
er
der imidlertid indbygget
et
'glidende stereo'-
kredslob,
som
automatisk forbedrer
signal/st0j-
forholdet. Stationer med
et
signal under
det
gliden-
de stereokredslobs nedre taerskel
vil
blive
mod-
taget,
men
selvfolgelig
kun i
mono.
I
dette tilfaslde
vil
FM
stereoindikator
(3)
ikke lyse,
og
viseren
®
forblive
rod.
Indstilling
af
IVIB/LB-stationer
Nedtryk enten langbolgeomskifter
®
eller
mel-
lembolgeomskifter
®.
Viseren
® vil
almindellgvis
lyse
op i r0dt.
Ops0g den
onskede station
med
sogeren
@.
Ved indsogning
af en
staerk station
vil
farven
i
viseren sendre
sig fra
rodt
til gr0nt.
Tilpas derfor
for
optimal indstilling.
Bemserk:
Ved modtagelse
af
svage MB/LB-statio-
ner
vil
farven
i
viseren
®
ikke skifte over
fra
rodt
til
gront,
men
derimod forblive rodt.
14
14


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