Honeywell International Inc. T8665C Manuale Utente

HS9-T8665C 

3 

For transmitted radiated emission measurements, the sample was programmed to 
continuously transmit a typical data.  This mode was also used to capture the occupied 
bandwidth plot shown below.  
 

Plot 1 

 

 

 
 
 
The field strength measurements were taken using an HP8596E spectrum analyzer, an 
EMCO 3121C dipole set, an EMCO 3115 double ridge guide horn and an Avantek 
UJ210 preamp.  The device was scanned in both transmit and receive modes from 
30MHz. to 10GHz. and all emissions within 30 dB. of the limits were noted. 
 
The receiver in this device is a pulse sequenced TRF, clocked at  approximately 1.54 
MHz. and has no local oscillator.  An effort was made to detect emissions that would be 
harmonically related to the sequencer clock but none were found.