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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
0
0
00
MN
0
000000
uc
nt
HM
GTO}
51
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