Technical Specifications - Midland PMR446 Manual De Instrucciones

The channel is used by an excessive
number of parties or the transmis-
sion has been barred due to a busy
Transmission is not
channel.
always possible
The transmission timer has enabled
VOX causes the radio
The sensitivity and/or environmental
to accidentally enable
noise are too high.
transmission
The VOX feature
requires speaking in a The sensitivity is too low.
loud voice
Logic related faults
Incorrect setting caused by a problem
(unreadable displayed
with the power supply.
symbols, functions )
Commission time is too high.
The autonomy of the
battery pack is limited For NiMH battery packs only: memo-
ry effect on the battery pack

TECHNICAL SPECIFICATIONS

Select another channel. Ask the radio
link provider to disable the block due
to busy channel. Channels ..........................................................................................................1~8 PMR, 1~69 LPD
Frequency generation ..............................................................................................PLL synthesizer
Reduce transmission time. Ask the
Frequency range .......................................................................446.00625 - 446.09375MHz (PMR)
radio link provider to set the transmis-
sion timer to a higher value.
............................................................................................................ 433.075 - 434.775MHz (LPD)
.......................................................................................................................... 520 - 1620KHz (AM)
Reduce the VOX sensitivity.
........................................................................................................................87.5 - 108.0MHz (FM)
................................................................................................................ 156.3 - 162MHz (MARINE)
If the environmental noise is not high,
Aerial ..............................................................................................12.5 KHz (PMR); 25 KHz (LPD)
increase the sensitivity or use an
optional microphone.
Rated power supply ................................................................................................... 6+/- 10% VDC
Operating temperature ...........................................................................................from -20° to +55°
Recharge the battery pack.
Size (without antenna) ...........................................................................................120x180x 55 mm
Weight (without batteries) ....................................................................................................0,563 kg
Try reducing the transmission time
Operation cycle (% on 1 h) . ............................................................... TX 5%, RX 5%, stand-by 90%
and/or using a low power.
Eliminate the memory effect.
Transmitter
Output power (ERP) . ................................................................................10 o 500 mW (Selectable)
Type of circuit ............................................................................................................................... FM
Suppression of spurious signals ................................................................ Compliant with ETSI law
Receiver
Sensitivity at 12dB Sinad .......................................................................................................0,35µV
Spurious signals rejection ......................................................................................................... 70dB
Audio output power (10% THD) ................................................................................................... 2W
Medium frequencies . ................................................................................ 1°:21,4 MHz ; 2°:455 KHz
Connection for external microphone and recharge . ............................................2,5 mm jack stereo
Connector for external speaker . ...........................................................................3.5 mm jack mono
Specifications are subject to change without notice.
CTE International herewith declares that the product complies with the essential requirements
of EC Directive 99/05/EC; the declaration of conformity of the device can be consulted onto
www.midlandradio.eu
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