Instruction Manual
3.3GHz (Model 2650/2652) and 8.5GHz (Model 2658)
Handheld Spectrum Analyzer series
Before Starting to Use the Unit
· When you use the unit, please observe the following notes listed on the rear of the body.
· For you to use it safely
1) When abnormal sounds, abnormal smell and smoke were confirmed, remove the battery and AC adapter
and stop the use.
2) Never use with hands that got wet, because doing so may cause damage, fire and electric shock to the
unit.
3) Never use it under the thunder. There is a possibility of receiving a thunderbolt.
4) Never use an AC adapter other than the one specified, because doing so may cause damage to the unit.
For static electricity protection, ground the unit by connecting the three cores if possible. Not grounding
the unit can damage it and the object measured.
5) Never use a battery other than the one specified, because doing so may cause damage to the unit.
When removing or installing the battery, be sure to do it after you turn off the unit and disconnect the
AC adapter.
6) When replacing the fuse, disconnect the AC adapter, open the battery cover on the back and remove
battery, and then take sufficient care to perform the replacement. Use 5A/250V fuse (IEC127-2 sheet 3,
slow-blow type).
Never use a fuse not specified because doing so may cause damage to the unit.
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· Guarantee of quality
Guarantee period
Guarantees that it will repair any failure free of charge if it occurs because of our responsibility within
one year after delivery. However, the above guarantee does not apply to such a failure that:
1) is caused by a fire, natural disasters, etc.
2) is caused by inappropriate handling of the unit, such as dropping it while moving it after
purchasing.
3) is caused by handling counter to the instructions or precautions listed in the operating manual.
4) is caused by modifying the unit or by being considered to be your responsibility because of
inappropriate use.
We will not be responsible for direct or indirect damage caused by use of this product or by a failure of
this product.
Warm-up time
In order to stabilize the electric performance at the time of turning on the unit, please perform
warming-up for at least 10 minutes.
The LCD may flicker on conditions of the low temperature and the dark backlight.
In that case, adjust the LCD backlight control BLCTR to be bright.
However, do not be bright too much in order to keep battery operation time longer.
Precautions for storage
1) Strictly observe the storage conditions specified for this unit, such as avoiding direct sunlight and dust.
2) Store this unit in a place where -20°C to 60°C, less than 60°C/70%RH, variations in temperature and
humidity are small.
After service
If you have any question about the contents of this product or how to operate it, please contact us at:
B&K Precision Corporation
22820 Savi Ranch Parkway – Yorba Linda, CA92887
TEL. 714-921-9095
FAX. 714-921-6422
URL: http://www.bkprecision.com/ E-mail: sales@bkprecision.com
–II–
Contents
1. Outline
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1.1 Product outlines
1.2 Standard accessories
1.3 Optical accessories
2. Specifications
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2.1 Performances
2.2 Outline
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3. Description of Panel
4. Description of Screen
5. Function Key Menu
5.1 List of the function key menus
5.2 Menu tree
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6. Preparing for Operation
6.1 Stand
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6.2 Connection to power supply
6.3 Replacing the fuse
6.4 Installing the battery
6.5 Soft carrying case
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7. Center Frequency <FREQ>
7.1 Setting with the step keys
7.2 Setting with the encoder
7.3 Setting with the numeric keys
7.4 According to the marker position
8. Frequency Span <SPAN>
9. Reference Level <REFER>
9.1 Setting the reference level
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9.2 Switching units of amplitude axis
9.3 Reference level setting range for each unit
9.4 Relation between the reference level and ATT·AMP
9.5 Setting the offset level
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9.6 Setting the input impedance correction
10. Display Scale <SCALE>
10.1 Setting with the keys
10.2 Setting with the encoder
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11. Resolution Bandwidth <RBW>
11.1 MANUAL mode
11.2 AUTO mode
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11.3 ALL AUTO mode
12. Video Bandwidth <VBW>
12.1 MANUAL mode
12.2 AUTO mode
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12.3 ALL AUTO mode
13. Sweep Axis · Detection mode <SWEEP>
13.1 MANUAL mode
13.2 AUTO mode
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13.3 ALL AUTO mode
13.4 Setting the detection mode
14. AUTO Tuning <AUTO TUNE>
15. Hold/Run <HOLD/RUN>
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16. Calculation Function <CALC>
16.1 NORM mode
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16.2 MAX HOLD mode
16.3 MIN HOLD mode
16.4 AVERAGE mode
16.5 OVER WRITE mode
16.6 SPURIOUS FREE mode
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