Tecsun PL-660 User Manual

www.tecsunradios.com.au
QUESTIONS ANSWERS SOLUTIONS
The charging time
becomes shorter and
shorter.
Radio malfunction.
The chargeable
batteries getting old.
This may caused by
interference, and the
computer microchip
does not function
properly.
Replace the old
rechargeable batteries
with new ones.
Remove all batteries,
then reload again.
If it is still not working,
please press on the
reset button with a
pointed object.
When the alarm is
on, there is only
noise with the
broadcast.
-Did not set the proper
radio station for the
alarm.
-Or there is no
broadcasting at that
radio station.
-Preset your alarm
station properly
-Make sure it has
radio broadcast in
your location.
-Or you are in another
city where does not
have a radio station for
your preset frequency.
PL-660...................................................................................23
TROUBLE SHOOTING

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