Nady Systems Nady MRC-11X - Manual (Page 10)

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SYMPTOM — No Power
SOLUTION
• Check batteries. Ensure that the batteries are installed correctly
• The batteries may be weak.
• Replace old batteries with four (4) new AAA alkaline or fully charged Ni- MH or
NiCad rechargeable batteries.
SYMPTOM — Weak Reception
SOLUTION
• Press the UP button to increase VOLUME.
• The receiving signal may be weak and/ or out of range. If this happens press the
SCAN button to defeat the AutoSquelch .
SYMPTOM — Can Not Change Channels
SOLUTION
• To change channels, press the MOD button until the Channel number flashes on the
LCD Screen. Press the UP or DOWN button to change channels.
• Batteries may be weak and need replacement. Replace with new batteries if the
BATTERY CHARGE LEVEL indicator is low.
SYMPTOM — Limited Range
SOLUTION
• Batteries may be weak and need replacement. Replace with new batteries if the
BATTERY CHARGE LEVEL indicator is low.
• The maximum range will vary depending on terrain and environment. Open fields
provide the maximum range, while structures, heavy foliage and use in buildings
and in vehicles may limit the range significantly.
• Wearing the radio close to the body, such as in a pocket or on a belt, will decrease
range. Change the location of the radio away from the body for optimum range
under any conditions.
SYMPTOM — Sound Distortion Problems
SOLUTION
• If you are transmitting, speak in a normal tone of voice, 1 to 2 inches away from the
MICROPHONE.
• If you are receiving, lower the VOLUME to a comfortable level.
• Radios may be too close. Radios must be at least 5 feet apart. Increase your
separation distance.
• Radios too far apart. Obstacles may be interfering with transmission. Shorten your
operating distance.
TROUBLESHOOTING
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Operating Frequency Range ............................................... 462.563MHz-467.713MHz
Number of Channels ........................................................... 22 total/GMRS + FRS
Effective Radiated Power ................................................... GMRS channels: 3W @ 6.0VDC
FRS channels: 500mW @ 6.0VDC
(power automatically selected for
channels as required by FCC)
Range .................................................................................. Up to 7 miles (11Km) line-of-sight,
3/4 to 2 miles typical
Modulation .......................................................................... FM, +/-1.5kHz
Carrier Frequency stability .................................................. +/- 2PPM
Harmonic Suppression ....................................................... >50dB
Carrier Attack Time ............................................................. 30ms
Receiver I.F. Frequencies .................................................... 1st: 21.6MHz, 2nd: 455KHz
Receiver Sensitivity (12 dB Sinad) ...................................... 0.4uV
Receiver Selectivity ............................................................. 50dB
Max S/N ratio @-60dBm RF input ...................................... 50dB
Squelch sensitivity .............................................................. -118dBm
Attack time .......................................................................... 120ms
Closing time ........................................................................ 200ms
Nominal Audio Output ........................................................ 200mW
Audio Frequency Response ................................................ 300-3000Hz
Audio distortion .................................................................. <1% (@1KHz deviation and 1mV RF input)
Max. Audio Output @10% THD .......................................... 350mW
Internal Speaker (deactivated when using headset) ........... 8 ohm/0.25W
Internal Microphone (deactivated when using headset) ..... Electret condenser
Microphone Sensitivity ....................................................... 10mV @ 1.5KHz deviation
Low Battery Display Threshold ........................................... 4.3-4.6VDC
Transmit Current (4.6VDC High Power) .............................. <0.8A (TX); <30mA (STBY); <100mA (RX)
Current Drain (Intercom) ..................................................... <100mA
Standby Current (4.6VDC) .................................................. <30mA
Power Required .................................................................. 4 Ni-Cad, NiMH
or Alkaline AAA batteries (4.6-6.0 VDC)
Battery Life 4.6VDC (4xAAA) ............................................... >48 HR (RX)
Max. Audio output @ 10% THD Current ............................. <200mA
Dimensions/Weight ............................................................. 2.5" X 4.0" X 1.0" (63.4 X 101.6 X 25.4mm)
5.1oz / 143g (without batteries)
GENERAL SPECIFICATIONS