WISYCOM S.r.l. •Via Spin, 156 •I-36060 Romano d’Ezzelino (VI) •Italy
Tel.
+39
0424
382605
•Fax +39 0424 382733 •www.wisycom.com •e-mail: [email protected]
CRT 16, CRT 16-2T - UHF FULL-DUPLEX BELT TRANSCEIVER
for WIRELESS-INTERCOM SYSTEMS
TECHNICAL SPECIFICATIONS:
•Switchable channels : 16 RX + 16 TX in the 380 ÷ 550 MHz range (others on request).
•Switching-window : ⇒5 MHz in the 400 ÷ 470 MHz range
⇒7 MHz in the 470 ÷ 550 MHz range (others on request).
•TX / RX frequency
spacing : 10 MHz min. & 40 MHz max. (others on request).
•Frequencies : with microprocessor controlled PLL frequency synthesizer. The frequencies are easily user-
reprogrammable by PC and optional “UPK 100 Programming kit”.
•Channel spacing : 12.5 or 20 or 25 or 50 KHz (according to local regulations)
•Frequency error : < ± 2 ppm, in the rated temperature range.
•Temperature range : -10 ÷ +55 °C.
•Antenna : single flexible wire-antenna, connector-interchangeable (Impedance = 50 ohm).
•Operating mode : full-duplex, with or without use of PTT (Push To Talk) push-buttons.
The transceiver can operate also in continuous transmission by a “double click” on one PTT
button (this function can be inhibited by internal setting).
•Modulation : FM (nominal deviation = ±1.7, ±2.5, ±3.3 or ±5.5 KHz, depending on the channel spacing).
•Spurious emissions : < 1 nW (50 pW typ.).
•NR system : compander circuit on both RX & TX channels, set in NR-mode (Wisycom NR).
•AF bandwidth : ⇒300 Hz ÷ 2.5 KHz (-3 dB), for 12.5 KHz channel spacing;
⇒300 Hz ÷ 3.3 KHz (-3 dB), for 20 KHz channel spacing;
⇒300 Hz ÷ 4.5 KHz (-3 dB), for 25 KHz channel spacing;
⇒300 Hz ÷ 8 KHz (-3 dB), for 50 KHz channel spacing.
•Distortion : < 2%, CCITT measured (< 1% @ 50 KHz channel spacing).
•SND/N ratio : > -80 dB (-86 dB typ.), CCITT measured (for 25 kHz channel spacing).
•RX sensitivity : < 0.25 µV, for SND/N = 20 dB (CCITT measured), for 25 kHz channel spacing.
•RX selectivity : > 76 dB to the adjacent channel (for 25 kHz channel spacing).
•RX intermod. rejection : > 73 dB.
•RX audio-output : balanced. Level = 4 Vrms max., with volume control. Impedance = 10 ohm.
•RX squelch : internally adjustable (and excludable).
•TX output power : 50 mW, ±1 dB.
•TX audio-input : internally pre-settable (and externally adjustable) for following microphone types:
⇒dynamic
⇒electret (2-wire or 3-wire type)
⇒active.
•TX coder : CTCSS (sub-audio tone-squelch).
•LED indications : ⇒Apparatus On (green Led BATT is on)
⇒Low-battery (green Led BATT blinks)
⇒Squelch is open (yellow Led SQL is on)
⇒Transmitter On (red Led TX1 or green Led TX2 is on)
⇒Modulation peak (blue Led LIM is on)
•Powering : n. 4 size-AA battery elements (alkaline or Ni-Mh rechargeable elements).
•Battery lifetime : ⇒15 hours ca., continuous receiving.
⇒6 hours ca., continuous receiving and transmitting.
•Size (body) / Weight : 143 x 75 x 26 mm / 310 g ca.
CRT 16 and CRT 16-2T comply with the following ETSI specifications:
⇒ETS 300 086: versions with 12.5, 20 or 25 KHz channel spacing;
⇒ETS 300 422: version with 50 KHz channel spacing (for frequency-ranges above 470 MHz).
SUPPLIED ACCESSORIES:
AWF 16 - UHF flexible antenna
BCL 18 - Belt clip (removable)
CNS 12 - Wisycom AF connector (for customer’s microphone/headphones-set wiring)
OPTIONALS:
CNT 12 - Wisycom AF connector and its mounting on the customer’s microphone/headphones set.
(Optimum factory-presetting of the transceiver included).
UPK 100 - Working frequencies user programming kit (DOS-PC running interface + software)
MCU xx - Microphone/headphones-set, on request (with Wisycom AF connector)
CPR 30 - Talk-back UHF pocket receiver, with 32 frequencies reprogrammable PLL sinthesizer.
