Radio operation – PolyPlanar MRD-70 User Manual
Page 8

Poly Planar LLC 520 McCormick Dr. Glen Burnie MD. 21061 410-761-4000
www.polyplanar.com
8
Radio Operation
Selecting band & storing presets: 
Pressing BAND (7) will toggle through the radio modes as follows FM1 -> FM2 -> FM3 
-> AM1 -> AM2. Each band stores up to 6 independent presets for a total of 18 FM and 
12 AM presets. To program a preset, tune in the desired station. Push and hold the 
desired PRESET button for at least 2 seconds. 
 
Automatically setting the presets: 
To automatically set the presets to the next higher stations, press the preset button (1-
6) from which to start programming. Hold the MENU button (10) for at least 2 seconds. 
The current preset and additional preset memories up to P6 will be programmed with 
the next tunable stations. All 18 FM and 12 AM presets can be set sequentially by 
selecting the next band and continuing the operation during auto programming. 
 
Seek & manual tune: 
Press the TUNE/SEEK-UP button (5) once to automatically tune to the next higher 
station. Press the TUNE/SEEK-DOWN button (6) once to automatically tune to the 
next lower station. To manually tune to a frequency, press and hold either TUNE/SEEK 
button for at least 2 seconds. Holding the button down will increase or decrease the 
frequency manually. When the desired frequency is reached, release the button. The 
unit remains in manual tune for 3 seconds after the button is released, so you can still 
fine tune with additional button presses. After 3 seconds the seek mode is re-enabled. 
 
Scan function: 
Select either AM, FM1 or FM2 mode and press SCAN (8) to listen to a few seconds of 
each radio station. SCAN will be displayed in the panel lights. The radio will 
automatically SCAN to the next higher station, play that station for a few seconds, then 
SCAN to the next higher station. To stop scanning and continue listening to the current 
station, press SCAN (8) again. The radio remains in SCAN mode until the SCAN 
button is pressed a second time or one of the tune buttons is pressed. 
 
Preset scan function: 
Press MENU (10) to enter preset scan mode. The next higher preset station will be 
selected and auditioned for 3 seconds while the display flashes. If you wish to remain 
on this station, press SCAN (8) a second time. If you do not press the scan button 
within 3 seconds, the next higher preset scan station will be selected. The radio 
remains in Preset Scan mode until MENU (10) is pressed a second time or one of the 
preset buttons is pressed. 
 
Changing the tuner frequency from US to Euro: 
Your unit it factory-set to US tuning frequency steps. To switch to Euro tuning steps, 
use the switch on the bottom of the unit. With the unit disconnected from the power 
source, peel back the sticker on the bottom of the radio and use a screwdriver to slide 
