Lokalizacja:
Kłodzko JO80IK06AO
Posty: 45504 #8118320
|
#12: Use Real-Time Spectrum Analysis to Characterize a transmitter key-up
This video shows the unique key-up characteristics of two different hand-held radios. The radios are a pair of multi-band HTs that are designed for the amateur/ham radio market. One is a Yaesu FT-470 Dual-Band (2m/440MHz), and the other is a Kenwood TH-F6A Tri-Bander (2m/220/440). The key-up, or transmitter turn-on characteristics are captured and analyzed on a real-time spectrum analyzer (Tektronix RSA5106A). It's quite surprising to see how differently these two transmitters behave, and how the transient characteristics of the transmitter turning on create very unique signatures that would make identification of these devices very easy simply by capturing their output over the air.
TYLKO ZAREJESTROWANI I ZALOGOWANI UŻYTKOWNICY WIDZĄ LINKI. DARMOWA REJESTRACJA
_________________
73! Stanisław SP6MLK
Kłodzko JO80IK06AO
http://ra-ukf.iq24.pl/default.asp
http://www.ukf-te.iq24.pl/default.asp
Przemiennik SR6DKL 439.4750 MHz / 94,8 Hz |
