3 Phone Line Hybrid with VQR (Voice Quality Restoration)
| Harga | Rp 1,00 |
| Ketersediaan Barang | Tak Terbatas |
Lebih Lengkap Mengenai 3 Phone Line Hybrid with VQR (Voice Quality Restoration)
The Voice, once restored, has a 50-10.000 Hz bandwidth
The
VQR process, in real time, with no delay, brings near-Studio audio
quality. Due to the average audio quality of receivers, about 95% of the
FM audience believes that the phone line transmission in not a remote
event (that is; the audio quality perceived is like studio quality, for
them)
In some ways it is a method similar to that used in Astronomy to know what materials are formed a star by analyzing its light.
The
HL203 includes a 3 lines hybrid, prior to VQR system, to enable the
handling of two telephone lines and a one cell phone connected
wirelessly by a digital microwave link named Bluetooth.
All 3 lines
can be placed in conference, with a cross gain between them, to allow
for a comfortable and excellent communication level.
It also allows
the direct entry of cell phones instead of phone lines. This way saves a
lot of money on telephone fares by taking advantage of the promotions
of communication at low fee, using Corporative cell phones
Features:
1) An audio processing stage in the return channel to maintain constant the level during conferences.
2)
Audio processing in the returning channel. This process makes
unnecessary the operator continuous correction of the send level. On the
other hand, it increases the intelligibility of the voice, allowing
listening in noisy environment. Band limiter filters eliminates the
return of out of band components, to maintain the quality of the local
voice when the hybrid is on-air.
3) HL 202 has 2, 4 or up tp 6
internal mix-minus buses. This way it is possible to obtain perfect
conferences because it has cross gain of 8 dB, so that all the remote
callers can be listened to each other.
4) Inputs use Nickel-Ferrite transformers that brings high inductance and excellent isolation to avoid humming or line noises
5)
Terrestrial lines or cellular phone It allows managing simultaneous
telephone communications by phone lines (2 wires mode) or cellular phone
(4 wires mode) . The commutation is automatic, when RJ11 connector is
plugged the cellular is detected.
6) Lightning protection. Using
metal oxide varistor (SIOV) the HL 202 hybrid is protected against high
voltage. A 2 KV test capacitor discharge is done at each unit to be
approved at factory.
