HP 3468A - Page 56

The dBm program is used to caiculate a power ratio using a 50 ohm impedance as
the reference. The dBm equation is:
dBm= 10*LOG((X2/R)/1mW)
where X is the measured value, R is the reference impedance (50 ohms) and 1mW
is the OdBm reference.
The dBm value is displayed on both the 3468A display and the -hp- Model
41C/41CV. Notice the use of subprogram MVAC in line 04.
@LeLBL “DBM Label dBm Measurements
2
EQ
“INI68°
Execute
initialization
program
Hse OM. “Byeeura MVAGE AS ate
“nyace rom
a
ist
MYAC
BLOCKS
program
a
a
a
Display
dBm
on
3468A
66 58 18 OUTA
ar 19 CLA
08 1 E-3 28 ARCL X Display dBm on calculator
i Calculate dBm a on
11 18 23 GTO 88
12 * 24 J END.
13 FIX 2
14 RND
DBM HEWLETT PACKARD
3468A PROGRAM
PROGRAM REGISTERS NEEDED: 10
ROW
1
(1
0
0
00
MN 0
000000
uc nt HM
GTO}
51