HP 8642A Operation And Calibration Manual

Model 8642A/B
Appendix C
Appendix C:
AMPLITUDE UNITS CONVERSION
You can use this information to convert the output amplitude to practically any desired units.
This information might be useful, for example, to convert between dBm and volts or EMF mV
and dBm or dB EMF uV to EMF uY.
Observe
the following three considerations sequentially when converting amplitude units:
1. When you desire non-EMF units and the EMF mode is currently selected, turn off the EMF
mode by selecting EMF ( ( SHIFT I I INCR SET I ) (OFF ON I (HP-IB code: EMOF). If you
desire
EMF units, then do nothing at this point.
2. Use the following table to determine the keystrokes or HP-IB codes that will convert to the
amplitude units in the left column of the table.
To Select The
Select the Following:
Following Units:
Keys
HP-IB Codes
dBm'
Vl. OM
~ (];D
V dBm
or
or
S§ REf'ET OJ
~
(AMPTO 1
REL OFF
AMPTD SHiFf 8 0
dBm
lIJ
APRS 0 OM APRO
ON
V, mV, or p.V; or
[ M~l ]
or ~ or
CO
VL
EMF V, EMF mV, or EMF p.V
I ,.,v
.v
dBp.V2 or
dB ......
or
['MPTD I I SHiFf I ~
OJ CO
DU or APRS 1 UV
dB EMF p.V2
W
. FREO
%
dB!
I AMPTD) [SHIFT I
f~A:~Tl CJ OJ OJ m
00
118m
APRS -120 OM
dBW
S EJ REF SET OJ OJ 00
AMPTO SHIFT 8 3 0 dB~
APRS 30 DM
dBV
(AMPlD I (SHIFT I
AEf5ET OJ ~
APRS 1 VL
dB EMF V
8 1 V
dB mV
88 REFSITOJW
dB EMF mV
AMPTO SHIFT 8 1 ~\~
APRS 1 MV
dB REL
Refer to Relative Amplitude
dB EMF REL
, If operating below -127.0 dBm, up to a 0.2 dB change could occur. To ensure no level change occurs, use the second sequence
provided
2To ensure thai message "AMPTD REF SET to 1.00UV "C2" will not occur, use Ule second sequence provided
3. When you desire EMF units and the EMF mode is currently off, turn on the EMF mode by
selecting EMF ( ( SHIFT I (INCR SET I ) ( OFF ON ) (HP-IB code: EM ON).
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HP 8642A Specifications

General

Brand	HP
Model	8642A
Category	Inverter
Language	English