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Digital
multichannel radio extension RT-300 |
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It is intended for transfer from 15-oe up to 120-oe
user's channels and Internet on a radio channel
on distance up to 40 km, with group speed 2 mbps.
Consists of a digital radio extension of group
use "RT-300" and user's multiplexers of a series
"IKM-6A" and "MC-115T."
Provides a fast and effective way of maintenance
with communication and Internet the removed settlements
at absence to them of communication lines and
the organization distributed integrated (oaeaoiiey+aaiiua)
departmental networks.
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The Digital radio extension of group use "RT-300" this
is analogue RRE " R-6/E1 ", transferred in strips of
frequencies of 307,5-308,0 MHz and 343,5-344,0 MHz.
- Reception of
frequencies is made not in the main federal
radio-frequency center, and in local (the
regional radio-frequency center) with reduction
of terms on reception of radio frequencies.
The decision of the given question has removed
the basic problem arising at operators if
necessary of application smol chennel RRE
for the organization of radiocarrying out
of user's capacity or organization magisterial
network.
- Features of
distribution of radiowaves in a range allow
applying of 300 MHz "RT-300" at absence of
direct visibility that excludes necessity
of construction of mast constructions which
conducts to increase of cost of projects.
- Low cost of
a digital radio extension "RT-300" and terminal
multiplexers entering into its structure provides
the cost price of one number in 5 thousand
rbl. That becomes very attractive moment for
realization of various programs on installation
of telephones of village.
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| The
Basic Characteristics |
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| The Range of frequencies:
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307,5-308,0
MHz and 343,5-344,0 MHz, from hollows.
36 MHz |
| Number of duplex radio
channels |
1 |
| Speed of transfer of the
information on a radio channel (group),
kbps |
From 512 up to
2048 |
| The Kind of modulation
of bearing frequency in a radio channel
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DBPSK and QPSK
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| CSW a transferring output
of station, no more |
1,5 |
| The Pressure of a feed
of the central and removed radio station
a direct current |
From 10,5 up to
13,5 In |
| The Capacity consumed
by the equipment from a network of a
direct current, no more |
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The station complete set
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20 W |
The removed complete set
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20 W |
| Factor of noise of the
receiver, no more |
6,5 dB |
| The Kind of demodulation
of a signal |
The phase detector
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| The Maximum level of an
accepted signal of the MICROWAVE |
Not less, a minus
75 dB |
| The Passband
of the receiver corresponds to throughput
of system at speed of transfer 1024
kbps should be no more |
On
a level a minus 3 dB |
3,5 MHz |
30 dB |
18 MHz |
60 dB |
26 MHz |
| Selectivity on the mirror
channel, not less |
70 dB |
| BER at a level of a handicap
on the next channel with the +2 MHz,
equal to the level of a useful signal
corresponding BER=10T-6 |
10E-5 |
| Rating value of intermediate
frequency of the receiver |
39 MHz and 10,7
MHz |
| Capacity on an output
of the transmitter |
1 W |
| The Maximum deviation
of frequency of the transmitter |
No more 20*10A-6
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| Width of a strip of radio
frequencies of a signal of transfer
on a level a minus 3 dB from not modulated
bearing |
No more than 0,55
MHz |
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