Front Panel Control Knob:
The control knob is a continuously rotating control with a push-switch function. Always push the button with your
finger in the direct center of the knob.
Rotate the knob to tune up or down the FM dial. Note that inter-station noise will be muted. Only stations with
signals above the mute threshold will be present.
Pushing the knob will switch between three different display modes:
01. FM or Preset, whether the signal is in stereo (M for Mono, B for Blend and S for Stereo), and the station
call number.
02. RDB/RDBS Display
03. RSSI Display in dBuV: Values above 40dBuV will result in full stereo separation.
Upon Power Up:
When switched on, the FM1 will perform its startup sequence followed by displaying the firmware revision. The
FM1 will be set for one particular world region, notated by one of three letters after the firmware revision:
U
for
US,
E
for Europe,
J
for Japan.
Display Modes:
The FM1 will then go to Standard mode. This displays either FM or the Preset number on the left, presence of
the stereo carrier, whether the signal is in stereo (
S
for full stereo,
B
for stereo blend, and
M
for mono signal), and
the tuned frequency. The decimal to the right of the FM or Preset display indicates the presence of the Stereo
Carrier on the station. This character will flash
R
if that station is transmitting RDS. Rotate the control knob to
discreetly select the frequency.
standard display mode, non-preset
The sonic performance of the FM1 will begin to stabilize after 100 hours of continuous power up.
