Table of Contents
Advertisement
PC Software
2. It writes in by PC software MAS300.
Connect the personal computer to HM5033 by MI180. Turn
on the power of HM5033. Start the PC software MAS300.
Please set the same baud rate of HM5033 and MAS300.
(Refer to „HM5033 operating manual" for details)
On the case of electric field strength measurement,
please choose [File] ! [Write E/F User Data],
on the case of magnetic field strength measurement,
please choose [File] ! [Write M/F User Data],
from the upper menu of software, and select the text file which
made some time ago.
Then, data is written.
4) Method 2 of writing data
It is method of writing in which does not use MAS300. A user
needs to prepare communication program.
1. Prepare the RS-232C communication software.
Connect the personal computer to HM5033.
Turn on the power of HM5033.
Start the RS-232C communication software.
Please set the same baud rate of HM5033 and software,
and unite the setting of communication. (Refer to „22. Data
Output" for details.)
2. Write the data
Please transmit data of the following format to HM5033
from RS-232C communication software.
Format
Case of compensation data of electric field strength
measurement.
EFUSER"Frequency":"Antenna gain" ,
"Frequency":"Antenna gain" , ···
Case of compensation data of magnetic field strength
measurement.
MFUSER"Frequency":"Compensation
"Frequency":"Compensation coefficient" , ···
Example: case of CP-2S
M F U S E R 10 M : 8 6 . 7 D B , 10 0 M : 6 9 . 2 D B , 1 G : 5 0 . 7 D B ,
2G:44.9DB,3G:40.1DB
Please write unit with a capital letter.
3. After writing is completed correctly
„OK" is returned from HM5033.
5) How to use
1. Please set the measuring function of HM5033 to
electric field strength measurement mode or magnetic
field strength measurement mode.
On the case of electric field strength measurement,
please select [MEAS] ! [E/F ANT],
on the case of magnetic field strength measurement,
please select [MEAS] ! [M/F PROBE],
32
Please push [F1] and display [USER] on the upper of [F1].
Now, electric field strength measurement or magnetic field
strength measurement can be performed by using
compensation data written.
Even if a power supply is shut off, the written
compensation data does not disappear.
If a power supply is shuts off at once, it will return to the
usual measurement.
6) About the antenna gain
In this items, the antenna gain is meaning absolute gain [dBi].
When antenna gain is relative gain, it can change into absolute
gain by adding +2.15dB.
Absolute gain [dBi] = Relative gain [dBd] + 2.15dB
As reference, the conversion formula to electric field strength
is using the following:
E=√(480
E: Electric field strength [V/m]
Pa: Received electric power [W]
Ga: Antenna gain [times] = 10
λ: Wavelength [m] = (3 × 10
23.6 Sample program
An example program to send following setting with RS-232C is
shown below.
Setting: Center frequency 1GHz
10
20
30
40
50
24. PC Software (optional)
coefficient" ,
This is the software MAS300 that controls HM5033 by RS-232C.
All setting can be performed from PC. Although the 251 points
of trace data is displayed on horizontal axis in the screen of the
HM5033, 1001 points of trace data are taken per sweep. When
this software is used, all of these 1001 points data are transformed
to a PC and trace is displayed at high resolution.
Corresponding OS
Hardware Requirements
Computer that is able to act normally Windows
use the COM port and CD-ROM drive.
Screen size 1024x768 or more computers.
Operating system
Windows
XP: Only the check of operation is performed.
Communication method
Bidirectional communication by RS-232C.
π
× Pa ÷ (Ga × λ
2
2
)
(antenna gain [dBi] ÷ 10)
8
) ÷ frequency [Hz]
OPEN „COM1:N81N" AS #1
PRINT #1 „FREQ1G";
INPUT #1 A$
CLOSE #1
®
95/98/2000/Me/NT
Subject to change without notice
'FREQ SETTING
„FREQ1G" OUTPUT
„OK" READ
®
, and able to
Advertisement
Table of Contents
