Technical Specifications - WisyCom CTK38 User Manual

Rev. 01
CTK38 User Manual

TECHNICAL SPECIFICATIONS

 Switchable channels
 Switching-window
 Frequencies
 Channel spacing
 Frequency error
 Temperature range
 RF output power
 RF output impedance
 Spurious emissions
 Transmission activation
 Modulation
 Mod. audio input
 Mod. audio input level
 Peak-limiter
 NR system
 AF bandwidth
 Distortion
 SND/N ratio
 Led indications
 Powering
 Dimensions
 Weight
NOTE [1]: according to local regulations
7
: 16, preset in the 140 ÷ 250 MHz range (other upon request).
: 10 MHz (other upon request).
: microprocessor controlled PLL synthesizer circuit, with 25 kHz
minimum step [1].
They are easily PC reprogrammable by the optional "UPK 32
Programming kit".
: 25KHz standard (Other on request)
: < ±5 ppm, in the rated temperature range.
: -10 ÷ +55 °C.
: 300 ÷ 10 mW ( 1 dB) [1].
: 50 ohm (type N-F connector).
: < 2 nW.
: remote PTT (Push To Talk) circuit, wired to ¼" (6.3 mm) mono
jack connector.
The transmission is allowed when the central pin (hot) is
connected to external ring (ground). See Note #1 on front
page.
: FM (peak deviation = ±5 kHz).
: transformer balanced, floating.
: Micro / Line switchable, and externally adjustable between:
 Micro = -64 ÷ -34 dBu (0.5 ÷ 15 mV)
-
Input impedance = > 2 Kohm
 Line = -22 ÷ +8 dBu (60 ÷ 1,950 mV)
-
Input impedance = > 10 kohm.
: automatic, with dynamic-range > 30 dB over the level set for
the nominal modulation.
: compressor circuit with noise-gate, specially adapted to the
MicroEar receivers.
: 200 Hz ÷ 5 kHz (-3 dB).
: < 0.5 % (0.25% typ.).
: > 80 dB (83 dB typ.), CCITT measured.
 Transmitter On (red LED)
:
 Limiter On
: 10.5 ÷ 16 Vdc, 300 mA max. (negative ground).
: 40 x 120 x 175 mm.
: 700 g ca.
(yellow LED).