R-693 modification
The product R-693 is meant for being applied as a part of the ship automated receiving hardware complexes, and has various modifications either based on the receivable receive chains number: 4, 8, 12, 16, or on the receivable frequency range: from 10 kHz to 80 MHz in VLF-MF-HF-VHF-UHF-ranges and from 1,5 to 30 MHz in HF-range.
The product is constructed according to the principle of direct digital-analog transformation.
The main functional components of the product are:
- Receiving module of receivers KVZ, operating in the range from 1,5 to 30 MHz and meant for receiving three independent channels with forming digital receive chain output in pass bands 3,1 and 40 kHz. Every receive chain has an electro-reconfigurable 4-contour preselector, providing the ability of receiving if having interference at antenna input with the voltage level up to 30 V;
- Receiving module VLF-MF-2HF-UHF, operating in the range from 10 kHz to 80MHz, and providing receiving up to 16 VLF-MF channels (0,01-1,5 MHz), UHF channels (30-80 MHz), or two HF channels (analog to KVZ receiver), while other 14 channels can be VLF-MF and UHF;
- 16-channel program computer-based demodulator;
- Analog-output module for 16 receive chains;
- Local information network commutator (LIN);
- Operator console.
The total amount of the receive chains of the product is determined by the number of applied modules of the receiver KVZ. The VLF-MF ranges have separate antenna inputs, and the number of HF antenna inputs is determined by the number of HF receive chains, which can be formed by the antenna amplifier UR-4 with a splitter for 4 outputs, built in the product.
The receiver accounts the possibility of reconfiguring the main features of the product by means of the unified interface (the 8EK technology is realized).
The construction of the product is a standard 19-inch stand, including all the components mentioned above.
Specification
¹ |
Name of the characteristic |
Value of the characteristic |
1 |
Receive chains number |
4, 8, 12, 16 |
2 |
Operating frequency range |
10…80000 |
3 |
Received emissions types |
J3Å, À1À, À3Å, F1B, G1B etc. |
4 |
Receive chains noise coefficient |
35 in the range from 10 to 160 kHz; 22 in the range from 160 to 3000 kHz; 16 in the range from 3000 to 30000 kHz; and 12 in the range from 30000 to 80000 kHz. |
5 |
Dynamic 3-order intermodulation distortion range, dB relative to µV, not less than |
80 dB\ µV with interference tuning-out 20 kHz and more in the frequency range from 1500 to 80000 kHz with included attenuator value 0 dB |
6 |
Blocking interference level with blocking coefficient not more than 3 dB with fixed attenuator value 0 dB |
With tuning out 20 kHz and more – not less than100 dB\ µV and not less than 150 dB\ µV, with interference tuning out in HF range 10% and more |
7 |
Adjacent-channel selectivity with band 3,1 kHz and with tuning out from the tuning frequency ±3, ±6 and ±10kHz
|
65,75 and 85 dB respectively |
8 |
Information exchange between components of the product is performed |
By means of unified interface LIN according to the standard IEEE 802.3 (Gigabit Ethernet) with the realization of physical level 1000BASE-T on the basis of the RTP protocol, respective to the document RFC 3550 |
9 |
The control of the product is performed using the operators console |
Distantly in accordance with the Protocols of information-technical coupling with external control devices in interfaces IRPS, RS-232ñ and Gigabit Ethernet |
10 |
Power consumption, W, not more than |
600 |
11 |
Strength and resistance to external effecting factors, except for the operator console |
The product is a part of the hardware of use group 1.1 in accordance with the State Standard (GOST RV 20.39.304) with amendments to the service conditions: • operating temperature from 263 to 313 K (from -10 to +40 °Ñ). |