User manual
rev.10
MCR41-MCR42 User Manual
38
TECHNICAL SPECIFICATION
• Frequency ranges [1]
:
MCR42 N ⇒ option 470 ÷ 700 MHz
MCR42 M ⇒ option 566 ÷ 798 MHz
MCR42 L* ⇒ option 470 ÷ 678 MHz
MCR42 H* ⇒ option 590 ÷ 822 MHz
• Switchable channels
:
40 groups of 60 channels fully user progr.
• Switching-window
:
Up 240 MHz [1].
• Frequencies
:
Microprocessor controlled frequency synthesizer circuit, with 25 kHz minimum
step. The frequencies is easily PC reprogrammed with the optional UPK 300E
Programming Kit.
• Frequency error
:
< ± 2.5 ppm, in the rated temperature range
•Temperature range
:
-10 ÷ +55 °C
• Modulation
:
FM, with 50 μs de-emphasis.
• Nominal deviation
:
±40 kHz (Max. operating dev. = ± 60 kHz).
• “A” / “B” antenna
inputs
:
With sturdy connectors.
• Antenna input
impedance
:
50 ohm sma type (SWR < 1:2; typ. 1:1.4).
• Sensitivity
:
⇒ 2 μV ( 0 dBμV), for SND/N > 58 dB;
⇒ 5 μV (14 dBμV), for SND/N > 98 dB.
in the whole switching-window [2].
• Amplitude response
:
< 0.5 dB (RF input sig.:6 dBμV ÷ 100 dBμV).
• Co-channel rejection
:
> 2.5 dB.
• Adjacent chan.
selectivity
:
> 80 dB typical (for ch. spacing ≥ 400 kHz).
• Spurious rec. rejection
:
> 100 dB.
• IF image rejection
:
> 90 dB.
• Intermod. rejection
:
> 76 dB.
• IIP3
:
> +10 dBm typical.
• Spurious emissions
:
< 2 nW (typical = 0.1 pW).
• Noise Reduction
system
:
ENR (Wisycom Extended-NR) , noise optimized
ENC (Wisycom Extended-NC), voice optimized & with reduced pre-emphasis
⇒ Others, compatible with most systems, thru an internal DSP emulation of
SA572, SA575 and Rms envelope compander chip set, fully user programmable
• AF bandwidth
:
30 Hz ÷ 20 kHz.
• Frequency response
:
± 0.5 dB in the 30 Hz ÷ 19 kHz range.
• Distortion
:
0.3 % typical.
• SND/D ratio
(Analogue)
:
110 dB typical [2]
• SND/D ratio (AES3)
:
>125 dB typical [2]
•
POWER LEDs
(OLD display*)
:
2 multicolour RGB LEDs to easy indicate Rx1 & Rx2 power status:
- GREEN, if "Receiver ON" with external power supply;
- RED, if Empty battery/power supply;
LEDs blinking indicates power supply status of transmitter:
- slow blinking, at 25% battery capacity;