Tecsun PL-660 User Manual

www.tecsunradios.com.au
PL-660...................................................................................17
Wide Band
It has better audio fidelity when receiving
strong signals or local stations.
Narrow Band
It is suitable to receive weak & long
distant station as narrow band is able to
limit the interference from adjacent strong
signal and reduce the background noise.
AM BW (BANDWIDTH)
Push the [ANT. GAIN] switch to “DX”
position for normal listening. But when
listening to the stations with strong
signal or strong electrical interference,
push the [ANT.GAIN] switch to either
“NORMAL” or “LOCAL” position to
reduce background noise or
interference.
ANT. GAIN
SL EEP
kHz
Ni-MH
Battery
Shortwave BW
0 1 2 3 4 5
Press the [AM BW] button to select your desired bandwidth for MW,
LW, SW, and SSB.
AM Bandwidth Indiction
TONE
TREBLE
BASS
ANT. GAIN
DX
NORMAL
LOCAL
Push the [TONE] switch upward for “TREBLE” listening, downward
or “BASS” tone.
TONE CONTROL
To activate the key lock function, press & hold the “ ” button with
“ ” appears on display. Press & hold it again with “ ”
disappears to deactivate the key lock function.
KEY-LOCK FUNCTION

Tecsun PL-660 Specifications

Frequency Range

FM frequency range	76~108 / 87~108 MHz
MW frequency range	522~1620 / 520~1710 kHz
LW frequency range	100~519 kHz
SW frequency range	1711~29999 kHz
AIR frequency range	118~137 MHz

Sensitivity

FM sensitivity	Less than 3 uV
MW sensitivity	Less than 1 mV/m
LW sensitivity	Less than 5 mV/m
SW sensitivity	Less than 20 uV
SSB sensitivity	Less than 1 uV
AIR sensitivity	Less than 5 uV

Selectivity and S/N Ratio

FM selectivity	＞ 30 dB (±200 kHz)
MW/LW selectivity	＞ 40 dB (±9 kHz)
SW selectivity	＞ 40 dB (±5 kHz)
FM S/N ratio	Less than 60 dB
MW/LW S/N ratio	Less than 45 dB
SW S/N ratio	Less than 50 dB

AM Frequency

SSB, AM 1st IF	55.845 MHz
AM 2nd IF	455 kHz
FM IF	10.7 MHz

Output Power

Speaker output power	≥ 450 mW
Earphone output power	≥ 10 mW
FM Stereo crosstalk	Less than 20 dB