SU1035536A1 - Method of measuring radio-transmitting device noise spectrum - Google Patents
Method of measuring radio-transmitting device noise spectrum Download PDFInfo
- Publication number
- SU1035536A1 SU1035536A1 SU823382447A SU3382447A SU1035536A1 SU 1035536 A1 SU1035536 A1 SU 1035536A1 SU 823382447 A SU823382447 A SU 823382447A SU 3382447 A SU3382447 A SU 3382447A SU 1035536 A1 SU1035536 A1 SU 1035536A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- receiver
- noise
- measuring
- frequency
- radio
- Prior art date
Links
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
СПОСОБ ИЗМЕРЕНИЯ ШУМОВОГО СПЕКТРА РАДИОПЕРЕДАЮЩЕГО УСТРОЙСТВА, заключающийс в определении за полосой блокировани измерительного приемника при различных частотных отстройках от частоты несущей радиопереданидего устройства возрастани шума на выходе измерительного приемника относительно собственного шума этого приемника на каждой из частот отстройки, отличающийс тем, что, с целью повьшени точности измерений измерений на частотах в пределах полосы блокировани измерительного приемника производ т при каждой из частотных отстроек от частоты несущей радиопередающего устройства путем измерени напр жени на выходе измерительного приемника при наличии сигнала радиопередающего устройства, затем одновременно с сигналом радиопередающего устройства подают вспомогательный сигнал, имеющий частоту, равную частоте настройки измерительного приемника .и измен ют амплитуду напр жени этого сигнала таким образом, чтобы среднеквадратичное значение напр жени на выходе измерительного СО приемника превысило в V2 раз зафикси{ )ованиде ранее напр жение на с выходе измерительного приемника при отсутствии вспомогательного сигнала,A METHOD FOR MEASURING A NOISE SPECTRUM OF A RADIO TRANSMITTING DEVICE, which consists in determining the blocking band of a measuring receiver at different frequency offsets from the radio carrier frequency of the device that increases the noise at the output of the measuring receiver relative to the noise of this receiver at the same distance, it is with the same noise of this receiver which, the outfitting of this receiver with the noise of the receiver, would be out of the way of the receiver’s noise of the receiver, with the noise of the receiver, to go to the radio receiver with the noise of the receiver in the detuning frequency of the receiver to the noise of the receiver, with the noise from the radio receiver, the ratios of the receiver will be out of alignment with the receiver’s own noise on the receiver, with the noise from the frequency of the receiver will be out of alignment with the receiver’s own noise on the receiver, with the help of this receiver’s noise on the receiver’s outgoing noise relative to the receiver’s own noise on the receiver’s receiver, in terms of the frequency of the radio receiver, the distance between the receiver’s noise and the radio receiver measurements at frequencies within the blocking band of the measuring receiver are made at each of the frequencies x offsets from the carrier frequency of the radio transmitting device by measuring the voltage at the output of the measuring receiver in the presence of a signal from the radio transmitting device; then, simultaneously with the signal of the radio transmitting device, an auxiliary signal is given, having a frequency equal to the frequency of the measuring receiver; and changing the voltage amplitude of this signal in this way so that the rms value of the voltage at the output of the measuring receiver’s CO exceeds V2 times the voltage {) previously the output of the measuring receiver in the absence of an auxiliary signal,
Description
со ел елate
: о:: about:
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU823382447A SU1035536A1 (en) | 1982-01-08 | 1982-01-08 | Method of measuring radio-transmitting device noise spectrum |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU823382447A SU1035536A1 (en) | 1982-01-08 | 1982-01-08 | Method of measuring radio-transmitting device noise spectrum |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1035536A1 true SU1035536A1 (en) | 1983-08-15 |
Family
ID=20992557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU823382447A SU1035536A1 (en) | 1982-01-08 | 1982-01-08 | Method of measuring radio-transmitting device noise spectrum |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1035536A1 (en) |
-
1982
- 1982-01-08 SU SU823382447A patent/SU1035536A1/en active
Non-Patent Citations (1)
Title |
---|
1. Передатчики морские однополосные. Методы измерений и испьатаний. ГОСТ 21895-76. М., Советское радио, 1977 (протртип). * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE28956T1 (en) | RECEIVER FOR RADIO FREQUENCY SIGNALS THAT CONTAINS TWO PARALLEL SIGNAL PATHS. | |
CA2058146A1 (en) | Method for fine tuning the resonant frequency of a filter in a combiner | |
SU1035536A1 (en) | Method of measuring radio-transmitting device noise spectrum | |
JPH04268832A (en) | Receiving apparatus composed of plurality of receiving branches | |
FR2371095A1 (en) | VHF RECEIVER INPUT CIRCUIT | |
FR2355414A1 (en) | SHORT WAVE RADIO RECEIVER | |
FI904085A0 (en) | OVER ANCHORING FOR OIL CONDITIONING ENGINE SKICK. | |
ES456619A1 (en) | Receiver apparatus for detection of two voice frequencies in a multifrequency tone signal | |
JPS6423186A (en) | Direct spread spectrum type radar equipment | |
JPS5690215A (en) | Ultrasonic measurement device | |
RU2026564C1 (en) | Signal-to-noise ratio meter | |
SU546834A1 (en) | Device for recording lightning discharges | |
SU347004A1 (en) | Reconnaissance station radio receiving device | |
ES2191024T3 (en) | PROCEDURE FOR THE TRANSMISSION OF A SIGNAL AT A MINIMUM IN TWO CHANNELS. | |
SU1197109A1 (en) | Device for measuring probability of signal reception error | |
SU828043A1 (en) | Nuclear magnetic resonance spectrometer | |
JPS6465940A (en) | Multipath measuring instrument | |
SU907827A1 (en) | Method of measuring signal-to-noise ratio | |
SU924877A1 (en) | Device for measuring phase distortions in communication channels | |
SU784011A1 (en) | Measuring receiver | |
SU1298695A1 (en) | Meter of phase noise spectrum of microwave amplifier | |
SU1453333A1 (en) | Device for measuring signal power | |
SU337061A1 (en) | Magnetic detector | |
SU985739A1 (en) | Gas spectrometry method | |
SU1427582A1 (en) | Device for measuring frequency variation in audio frequency channel |