spur rejection

French translation: rejet des rayonnements non désirés

13:13 Feb 16, 2016
English to French translations [PRO]
Tech/Engineering - Telecom(munications)
English term or phrase: spur rejection
Bonjour,

Toujours à propos d'antennes.

"We have a 25dB attenuator at the spectrum analyzer input, so the actual Noise_Tx is -70+25=-45dBm.
The Tx power at 4.8GHz is +30dBm, therefore the Noise_Tx rejection is 30-(-45)=75dBc
B. At close offsets – the data-link have a spur at 10MHz offset (reference clock of the PLL):
Using the same calculation as above, this spur rejection is 65dBc.
Antennas Specifications
UAV Airborne Omni-Directional Antenna
The Omni airborne antenna is mounted on top of the UAV (facing up)."

Merci d'avance.
Julien Mulas
France
Local time: 12:26
French translation:rejet des rayonnements non désirés
Explanation:
une suggestion...

spur : rayonnements non désirés (dBc/(largeur de bande de rÈfÈrence))
Selected response from:

florence metzger
Local time: 12:26
Grading comment
4 KudoZ points were awarded for this answer



Summary of answers provided
5rejet des bruits parasites
FX Fraipont (X)
4rejet de bandes de fréquences indésirables
HERBET Abel
3 +1rejet des rayonnements non désirés
florence metzger


  

Answers


41 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
rejet de bandes de fréquences indésirables


Explanation:
qui se programme ou se calcule

HERBET Abel
Local time: 12:26
Works in field
Native speaker of: French
PRO pts in category: 20
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48 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
rejet des rayonnements non désirés


Explanation:
une suggestion...

spur : rayonnements non désirés (dBc/(largeur de bande de rÈfÈrence))

florence metzger
Local time: 12:26
Native speaker of: Native in FrenchFrench
PRO pts in category: 44

Peer comments on this answer (and responses from the answerer)
agree  GILLES MEUNIER: rayonnements indésirables
3 hrs
  -> merci
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3 hrs   confidence: Answerer confidence 5/5
rejet des bruits parasites


Explanation:
"In addition to noise, there are other repeating phenomena that generate additional tones, usually much lower than the carrier. Such tones are labeled as "spurs." The word "spur" comes from the word "spurious", which means "not the original" Spurs are signals close to the primary/carrier frequency but that are not the primary signal. Such signals can be problematic for some applications but may have no effect on other systems. Typically, the term "spurs" refers to those that are not harmonics of the carrier signal; so, many devices specify non-harmonic spurious power separately. Spurs require additional consideration when calculating the integrated jitter."
Integrated Phase Noise -- AN256 - Silicon Labs
https://www.silabs.com/Support Documents/.../AN256.p..

" spurious noise
bruit parasite
Domaine physique
Auteur Radio-Canada, 1977"
http://www.granddictionnaire.com/ficheOqlf.aspx?Id_Fiche=190...


FX Fraipont (X)
Belgium
Local time: 12:26
Works in field
Native speaker of: Native in FrenchFrench
PRO pts in category: 447
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