System Description
1-8
602-13729-01 Rev B
Expedio Digital Electronic News Gathering Radio
IF U P C O N V E R TO R
79M H Z
X T AL
O S C IL L ATO R
IF U p co n ve rto r
70MH z S AW
Pad
8dB
9MHz
I/P
7 0 M H z
IF O U T
Figure 7: IF Upconverter Block Diagram
The resultant carrier is translated up to 70 MHz by the IF Upconverter. This is accomplished by a
standard mixing of the carrier with a phase-locked LO. A 70 MHz SAW filter provides an
exceptional, spectrally clean output signal.
