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| Telephone Control Interface Option |
| Features
 Remote
signal monitoring over telephone
Easy
control via touch tone keypad codes
Digitized
voice announcements
Optional
connection to a cell-phone
Optional
PC control via voice modem
The WiNRADiO Telephone Control Interface (WTCI) is ideally suited for
remote surveillance and monitoring of radio signals.
The unit is designed to work in conjunction with WiNRADiO wide-band
communications receivers (WR-1550e, WR-3150e,
WR-3500e and WR-3700e).
The WTCI is connected to the receiver and a standard phone line, or
optionally to a cell-phone. The user can control the receiver remotely
using DTMF (touch-tone) commands, and the WTCI unit confirms received
commands using a digitized voice. |
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| Received audio signals can be listened to by the user in real time,
from any public or private phone. There is no limit on how far the
receiver can be located from the listener, as long as a standard
telephone service exists in both locations. The WTCI unit is therefore
eminently suitable for remote monitoring of transmitters in civilian as
well as government and military applications.
The WTCI works like an auto-answer modem. Upon dialing in, a pleasant
digitized voice invites the user to enter a password.
Upon successful entry of the password, the user can select from a large
variety of commands. These include simple commands such as setting
frequency and volume, as well as commands performing scanning, or status
reading including signal strength. |
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| There are two WTCI models: WTCI-B (basic version) and
WTCI-S (special professional version). The WTCI-B
model supports manual control only, and does not have a provision for a
mobile (cellular) phone connection. The WTCI-S model makes
it also possible to control the receiver using a PC (equipped with a
voice modem) and the WTCInet option.
| Model |
Support for PC control |
Support for cellular phone |
| WTCI-B |
No |
No |
| WTCI-S |
Yes
(with WTCInet software option) |
Yes |
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| The WTCInet option is a PC-based software which makes
it possible to network WTCI units using a PC with a voice modem, as well
as add various advanced functions such as real-time audio recording.
The user interface of the optional WTCInet software is
designed around familiar and intuitive WiNRADiO receiver interfacing
concepts. The control panel resembles the intuitive user interface of a
standard WiNRADiO receiver.
In addition to real-time control by the operator, WTCInet
software makes it possible to automatically monitor, log and record the
audio signal, without supervision.
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| Technical Specifications
| Receivers supported |
WR-1550e (0.15-1500 MHz)
WR-3150e (0.15-1500 MHz)
WR-3500e (0.15-2600 MHz)
WR-3700e (0.15-4000 MHz)
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| Supply voltage |
12-15 V DC (standard WiNRADiO receiver power supply)
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| Supply current |
Typ. 150 mA |
| DTMF signal level |
27.5 - 869 mV rms |
| DTMF duration |
Min. 60 ms |
| DTMF interval |
Min. 40 ms |
| Ring detector sensitivity |
20 - 150 V rms |
| Loop current |
10 - 120 mA |
| Power |
96-265 VAC @ 47-63 Hz, auto-switching |
| Dimensions |
121 x 215 x 26 mm
(4.76"x 8.46"x 1.02") |
| Weight |
900g
(31.2 oz) |
Specifications are subject to change without notice. |
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