Up-converter KRUB 464466.002
Up-converter is intended for application in the
transmitting equipment of a tropospheric radio station as the converter of 70 MHz IF in
a signal of a very high frequency, the frequency of which one can be varied in of 4400... 5000
MHz operational frequency range. The up-converter is executed under the scheme with single
frequency up-conversion with using an external local oscillator. The controller performs the
remote set-up of the up-converter on specified output frequency.
Frequency sequencer forms coherent signals that differ
in the high spectrum purity degree and low level of the phase noises. FS synchronize from
reference frequency 10 MHz generator. Than FS extended aging distantly from operating device
and gives acknowledgement of the extended aging. There is an ability to indicate sequenced
frequencies and control operation with the help of digital indicator and control luminodiodes
on the right side of FS.
FS saves installed operating modes after interruptions in the power supply.
FS is intended for using in such conditions:
- ambient temperature -25°С...+ 60°С;
- maximum ambient temperature +70°С;
- decreased atmospheric pressure - 460 mm Hg.;
- increased air humidity (95±3)% at 35°С temperature.
Specifications
Range of operational frequencies, MHz:
of input signals
of local oscillator
of output signals
of input pilot signals
of output pilot signals |
64,5...75,5
4330...5070
4400...5000
56±1, 84+1
4386...5014 |
IF input
Input of transmitter frequency synthesizer
Microwave output
pilot signal generator input
receiver small circle output |
| Output microwave signal power in range of operational frequencies, dBm | 12 ± 2 | at Рin=(0±1) |
| Limits of remote regulation of output power, not less, dB | 25 | |
| Gain ripple in fo+6 MHz, no more, dB | 1 | |
Level of by-products, no more, dBs:
at fо ±60 MHz
at fо ±140 MHz
harmonics level |
-60
-90
-30 | |
| 3rd intermodulation distortion measured according to 2 tone test (at 2 MHz spacing with 3 dBm power) | - 30 | |
| VSWR of 70 MHz input, no more | 1,2 | |
| VSWR of main microwave output, no more | 1,3 | |
| VSWR of LO input, no more | 1,3 | |
Transfer ratio in operating frequency range:
from IF input to small circle transmitter output, dB
from pilot signal generator input to receiver small circle output, dB |
3 ± 5
-23 ± 5 | |
| VSWR of pilot signal generator input, no more | 1,2 | |
| VSWR of small circle transmitter output, no more | 1,3 | |
Consumption current, no more, А
+27 V (analogue)
+27 V (digital)
+12 V |
0,4
0,1
0,7 | |
| Time between failures, hours | 30000 | |
|
TM
