
Headphone socket
ROBERTS RADIO LIMITED
www.robertsradio.com
© 2021 Roberts Radio Limited
Issue 8
2021-02-24
A 3.5mm Headphone socket located on the right hand end
of your radio is provided for use with headphones. Inserting
a plug automatically mutes the internal loudspeaker.
Please be aware that the sensitivity of headphones can vary
widely. We therefore recommend setting the volume to a low
level before connecting headphones to the radio.
Other information
STEP 2 - Operating your radio
3 band portable radio
Please read this guide and the safety/warranty leaet before use
R9993
1 Switch on your radio by rotating the Volume control anti-clockwise until a click is heard.
The On/Off indicator will light up.
2 Set the Waveband selector to the
required waveband.
3 Adjust the Volume control until a
hissing sound is heard.
4 Rotate the Tuning control to select
the desired station. For the MW and
LW wavebands the tuning scales are
shown in kilohertz (kHz). For the FM
waveband the tuning scale is shown
in Megahertz (MHz).
5 For MW and LW reception rotate
your radio to the position giving best
reception.
6 For FM reception fully extend the
Telescopic aerial and then angle
and rotate for best reception.
7 Adjust the Volume control to the
required sound level.
8 To switch off your radio rotate the Volume control fully clockwise until a click is heard.
Note: The telescopic aerial is inoperative on MW and LW.
6
24
1
It is recommended that the
FM band be used wherever
possible as better results in
terms of quality and freedom
from interference will usually
be obtained than on the MW
or LW bands.
Specications
Power requirements
Batteries 4 x LR6 / AA size (not included)
DC input 6V 300mA centre pin negative (-).
Battery life
Approx. 50hrs of listening for 4 hours a day at normal
volume using alkaline cells.
Frequency coverage
FM 87.5 - 108MHz, MW 522 - 1620kHz, LW 144 - 281kHz
Product markings
This symbol indicates DC voltage.
The name plate is located on the
underside of your radio.
Circuit features
Headphone socket 3.5mm dia
Aerial System FM Telescopic aerial
MW / LW Built-in Ferrite aerial
The company reserves the right to
amend the specication without notice.
Designed & Engineered in the UK
Made in China