L'explication/l'anotation:Signal generator of HF. For adjustment, adjustments and èñïûòà
Nia of different radio engineering instrument and facilities of communication ðàäèîâåùàòå
ëüíîãî range.
La description détaillée de marque:The high frequency tuning accuracy, the stability, improved ïà-
ðàìåòðû AM and FM, the low-lying level of amplitude noises satisfy ïîâû-
øåííûì òðåáëâàíèÿì of wide consumer and provide âûñîêîêà÷åñòâå-
ííîå the broadcasting, the detectors inspection of main kW of relation and radio-
stations with single-sideband modulation. The generator provides following
business hours: unmodulated oscillations (Tax Codes), internal and external àì-
ïëèòóäíóþ (AM) and frequency (FM) modulating.
main technical characteristics.
frequency characteristics:
C band discreteness from 1 Hz to 1 kHz. 0, 01. 130 mHz
main frequency setting error. +-10Å-5
after 1 hour of ñàìîïðîãðåâà. | +-5. 10Å-6
stepless frequency detuning. No less than 2. 10Å-3 %
parameters of output voltage:
limits of change of level (on bear load 50 and 75 Omaghs). 1. 10Å-7. 2 in
setting error of output voltage. +-0, 5. 1 decibel
spectrum parameters:
harmonic weakening. - 30 decibels
spectral density of amplitude noises in case of
tuning out from carrier on 20 kHz. - 123 äÁ/Ãö
parasitic amplitude modulation in mode of Tax Code. Not more 0, 1 %
residual deviation in mode of Tax Code in page 30Ãö. 20êÃö. 1. 10Å-6Fñ+5Ãö
parameters of amplitude modulation:
range of modulating frequencies: external AM. 30 Hz. 20 kHz
internal AM. 1 kHz
AM coefficient. 0. 99 %
basic error of SIF:
in case of SIF 5. 90 %, kHz Fì=1. +-5 %
within a range of modulating frequencies. +-10 %
parameters of frequency modulation:
range of modulating frequencies:
within a range of carrier 1. 4 mHz. 30 Hz. 20 kHz
within a range of carrier 4. 130 mHz. 30 Hz. 60 kHz
directive limits of dollar exchange. 1. 600 kHz
setting error of dollar exchange. +-10 %
other parameters:
operating temperature range. - 10. +50 degree. With
mains supply 50 cycles. 220 in
mains-operated 400 Hz. 115 in
power consumption. 70 computer engineerings |
