WisyCom RTE25, Руководство пользователя

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7
TECHNICAL SPECIFICATIONS

Switchable channels
: 16, preset in one of the following ranges (others on request):

140 ÷ 250 MHz,

300 ÷ 360 MHz,

470 ÷ 880 MHz.

Switching-window
:
15 MHz, in the 140 ÷ 250 and 300 ÷ 360 MHz ranges; 25 MHz, in the 470 ÷ 880 MHz
range.

Frequencies
:
Microprocessor controlled PLL frequency synthesizer circuit, with 25 KHz minimum step.
They are easily user-re-programmable by DOS-PC and optional “UPK 32 Programming kit”.

Frequency error : < ± 5 ppm, in the rated temperature range

Temperature range
:
-10 ÷ +55 °C

Modulation
:
FM, with 50 µs de-emphasis.

Nominal deviation
:

±20 KHz, with NR-system pre-set Off ;

±40 KHz, with NR-system pre-set On .

Peak deviation
:

±75 KHz, with NR-system pre-set Off;

±55 KHz, with NR-system pre-set On.

RF output power
:
2.5 W (± 1 dB).

Spurious emissions
:
< 250 nW.

Antenna connector
:
N-F type.

Output impedance
:
50 ohm.

Audio input
:
Transformer balanced, floating (XLR3-F connector).

Audio input level
:
Micro / Line switchable, and adjustable (for nominal deviation) between:

Micro = -60 ÷ -28 dBu ( 0.77 ÷ 30 mVrms) (Input impedance = > 2 kohm)

Line = -32 ÷ 0 dBu (20 ÷ 775 mVrms) (Input impedance = > 5 kohm)

Peak-limiter
:
Automatic, with dynamic range > 24 dB over the level set for the nominal deviation.
Option LLK:
For stereo applications, the limiter-circuits of two units can be linked by the optional
external cable.

NR-system
:
Compander circuit, can be internally pre-set (or excluded) between following modes:

ENR ( Wisycom Extended-NR, with independent Attack- and Recovery-time), default;

NR (Standard-NR), to be compatible with other apparatus.

AF bandwidth
:
30 Hz ÷ 20 KHz.

Frequency response
:
± 0.5 dB (± 0.25 dB typ.) in the 40 Hz ÷ 19 KHz range.

Distortion
:
< 0.3 % (0.15 % typ.).

SND/N ratio
:

> 110 dB (115 dB typ.), with NR-system pre-set On ;

> 80 dB ( 85 dB typ.), with NR-system pre-set Off .
(referred to the peak deviation, and measured: 22 Hz/22 KHz, RMS, unweighted).

LED indications
:

apparatus On (green LED is on);

limiter-on status (red LED is on).

Bar-graph meter
:

± KHz deviation

± dB deviation
referred to ± 20 KHz deviation.

Powering
:

9 ÷ 15 Vdc / 10 W (typ.: 900 mA @ 12 Vdc), negative ground

mains 100 ÷ 264 Vac, by means of optional PSP25-L “mains-plug” power supply.

Dimensions - Weight
:
243 x 43 mm (½ x 19”/1U standard-rack) x 226 mm depth.

Weight
:
1.5 Kg approx.