TH-02  Ex Mk-II r
Digital Hybrid with Frequency Extender
TH-02
Ex Mk-II
Digital Hybrid with Frequency Extender
The ultimate solution for interconnection between Telephone
Lines and Radio and TV Programs
Telephone communications are performing a main
role in broadcasting programs today an with no
doubt, will still do in the future.
Their range of applications is constantly extending in
order to achieve more creative Radio and TV
programs, increasing the participation of the public.
But studio engineers know the problems that usually
occurs when carrying out an interconnection
between a telephone line and a "live" program. The
side rejection between the studio signals and the
input signal is difficult to avoid with the conventional
analog methods.
However, the arrival of digital audio processing
techniques, together with the quick advance of
micro-electronics, have allowed us to develop a
telephone interface specially designed for the radio
and TV broadcasting companies, the TH-02Ex Mk-II.
The TH-02Ex Mk-II is a configurable system, which
can be used in the two-wire mode, as a digital hybrid,
or in the four-wire mode as a full duplex intercom.
Due to its excellent technical and functional
characteristics, the TH-02EX Mk-II has set the trend
to follow by all other similar equipment.
The Mk- II version of the TH-02EX Mk-II hybrid gives
users the option to activate the multiplex mode. In
the last possibility, each line of the equipment
operates as a single independent hybrid.
Working with two lines, the user takes advantage of
the Mix-Minus bus fitted into the system.
Using this bus, it is possible to make a multiplex
and full duplex communication between the studio
and two communication lines connected to the TH02EX Mk-II.
The user can select the working mode of each line
so, there are different configurations that make the
TH-02EX Mk-II a very versatile system, with a wide
choice of applications.
The TH-02EX Mk-II incorporates a useful
application, the Extended Mode. When connected,
the frequency extensor displaces all the frequencies
250 Hz upwards in the emission band, and 250 Hz
downwards in the reception band. For correct
operation of the function, the inverse mode should
be applied at the other end of the line with another
TH-02EX Mk-II or TLE-02, TLE02-D, MPAC-02,
EAGLE, COURSE or SWING.
The new feature permits to send through telephone
line frequencies between 50 and 3.150 Hz, instead
of those between 300 and 3.450 Hz, transmitting
two and a half additional octaves in low frequencies,
with a loss of only 1/10 octave in high frequencies,
obtaining such perfect sound that you can not
appreciate the transmission is made through
telephone lines, disappearing the characteristic
shortage of low frequencies.
The TH-02EX Mk-II can work with one or two
communication lines.
AEQ International : C/ Rey Pastor, 40 28914 LEGANES / MADRID (SPAIN) Phone: +34 91 686 13 00 - Fax: +34 91 686 44 92
e-mail: aeqsales@aeq.es- http://www.aeq.es
AEQ USA: 4121 SW 47 Avenue, Suite 1303 Fort Lauderdale FL 33314 Phone: 954 - 581 7999 Fax.: 954 - 581 7733
e-mail: sales@aeqbroadcast.com - www.aeqbroadcast.com
Digital Hybrid with Frequency Extender
TH-02
Ex Mk-II
BACK PANEL
TECHNICAL CHARACTERISTICS
AUDIO INPUTS:
Program inputs: Transformer balanced.
Input impedance: > 6 kOhms.
Nominal input level: 0 dBm.
Four Wire inputs: Transformer balanced.
Input impedance: > 1KOhm.
Nominal input level: 0 dBm.
AUDIO OUTPUTS:
Program outputs: Transformer balanced.
Nominal output level: 0dBm.
Four Wire outputs: Transformer balanced.
Nominal output level: 0 dBm.
TELEPHONE LINE INTERFACE:
Input/Output: Transformer balanced.
Impedance: 600 Ohm.
Nominal input level: -10 dBm.
Nominal output level: -6.5 dBm.
* In multiconference mode, the output level of the
telephone line provinient from the other line (nominal
output level) is -7.5 dBm.
TWO WIRE MODE
BANDWIDTH (not active extensor)
Telephone line: 300-4.000 Hz +/- 1 dB
Program output: 300-4.000 Hz +/- 1 dB
BANDWIDTH (active extensor)
Telephone line: 50 - 3.750 Hz +/- 1 dB
Program output: 50 - 3.750 Hz +/- 1 dB
Distortion + THDN: 1 KHz with nominal input and output
levels.
Telephone line: < 0.20%.
Program output: < 0.15%.
Absolute noise: TX = >-66 dBm. RX = - 68 dBm.
SUPRESSION ELECTRICAL ECHO:
One and Two lines connected: Impedance: 600 Ohm.
Signal source: One and Two lines: 1 Khz.
Nominal input and output levels.
Program output.
Level One line: < -64 dBm tipical.
Level Two lines: < -58 dBm tipical.
FOUR WIRE MODE:
BANDWIDTH ( not active expansor).
Telephone line: 300-4.000 Hz +/- 1 dB.
Program output: 300-4.000 Hz +/- 1 dB.
BANDWIDTH (active expansor).
Telephone line: 50 - 3.750 Hz +/- 1 dB.
Program output: 50 - 3.750 Hz +/- 1 dB.
Distortion + THDN: 1 KHz with nominal input and
output levels.
Four Wire output: < 0.10%.
Program output: < 0.10%.
Absolute noise:
TX = < - 66 dBm. RX = < - 68 dBm.
Frequeny extensor:
TX = 250 Hz. RX = -250 Hz.
Cross-talk in any case: Lower than absolute noise.
AC POWER SUPPLY:
110/220 V. 50 - 60 Hz. 37 VA.
DIMENSIONS:
19” rack (1 Unit height).
Width: 482 mm. (19”).
Height: 44.5 mm (1,75”).
Depth: 356 mm. (14”).
Ed.: 10-2003
Frequency extensor: TX = 250 Hz. RX = - 250 Hz.
Cross-talk in any case: Lower than absolute noise.
DESIGNED BY:
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