B&K Precision 2640 User Manual
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Safety Term and Symbols
Caution statements identify conditions or practices that could result in
Ground statements identify conditions or practices that could connect
Danger statements identify condition or practices that could result in injury
or loss of life
.
damage or fire.
.
protective conductor.
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Caution for safety
Prohibiting to removal the cover
Do not remove the instrument cover to access the internal components. Only B&K
Precisions’ Service technician with knowledge of the instruments’ condition and
dangerous voltages can repair the instrument.
Instruments that appear damaged or defective should be made inoperative and secured
against unintended operation until they can be repaired by qualified service personnel.
Keep the clean on power insert
Instrument’s power insert should remain dust free.
Clean the power insert regularly. Dust could result in damage to this instrument.
Continually clean the dust on input terminal of RF frequency counter.
Clean the input terminal regularly. Dust could result in damage to the instrument.
RF in/output rating
Rating of RF input and output connector
Maximum DC voltage rating
RF input connector (socket): N type female, 50Ohms
Maximum RF input power: 5Vrms
Caution: Do not use over 5Vrms supplied and/or (-) power could result in damage to this
instrument
Do not operate this instrument if there is any doubt it is functioning properly: if
operating personnel feels the instrument is not operating properly, return this instrument
to B&K Precision for service and repair to ensure the safety features are maintained.
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DC Power
The operating Personnel must use the DC adaptor supplied with this instrument. Other
adaptors could result in damage to this instrument and it is the limitation of warranty Exterior
DC input connector should be matched with polar. DC connector tip must attach with (+) polar
grounding.
The operating personnel must use grounded power Restore this instrument
Instrument care
＊Avoid direct light
＊Keep away the heating system
＊Avoid high temperature (Ex. Inside of the car during the summer time)
＊Keep away from liquids
＊Avoid high moisture and/or poor ventilation
＊Keep away from dust and/or smoke
＊Avoid extremely low temperature
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B&K Precision 2640 Ni-MH battery is rechargeable. Charging is controlled from the power of
the battery cell and the temperature of the battery. Ni-MH Rechargeable battery is going to
increase temp slowly until the temperature is extremely higher. Battery charging is finished
automatically by checking the degree of the temperature (dT/dt). For battery protection, when
the power of Battery cell is increased, comparing regular temperature and/or exterior
temperature degree of when the temperature increases over 50 degrees, battery charging will
be finished automatically.
Operating personnel must use Ni-MH Rechargeable Battery and do not operate in an
explosive atmosphere.
- The battery usage time can change due to the using term, environment and
temperature.
- When battery consumption is large battery-running time will decrease.
Operating personnel should phase in a new battery when battery-running time is less than
half of the initial operating time.
- Operating personnel should not use this instrument and/or keep the battery in
place for long periods of time, which could result in discharge of the battery.
-
To avoid damages to battery, when battery is low, this instrument will turn off
automatically.
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Warranty
Limited One-Year Warranty
B&K Precision warrants to the original purchaser that its products and the
component parts thereof, will be free from defects in workmanship and
materials for a period of one year from date of purchase from an authorized
B&K Precision distributor.
B&K Precision will, without charge, repair or replace, at its option, defective
product or component parts. Returned product mus t be accompanied by proof
of the purchase date in the form of a sales receipt.
To obtain warranty coverage in the U.S.A., this product m ust be registered by
completing the warranty registration form on www.bkprecision.com within fifteen
(15) days of purchase.
Exclusions: This warranty does not apply in the event of misuse or abuse
of the product or as a result of unauthorized alterations or repairs. The
warranty is void if the serial number is altered, defaced or removed.
B&K Precision shall not be liable for any consequential damages, including
without limitation damages resulting f rom loss of use. Some s tates do not allow
limitations of incidental or consequential damages. So the above limitation or
exclusion may not apply to you.
This warranty gives you specific rights and you ma y have other rights, which
vary from state-to-state.
B&K Precision
22820 Savi Ranch Parkway
Yorba Linda, CA 92887
www.bkprecision.com
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Accessories (included)
User’s Manual
Software CD
Carrying Case
AC Adaptor
Carrying Strap
Coaxial Cable
Power Cable
Ni-MH(Rechargeable
Battery) 6PCS
RS-232 Cable
Ear Phone
N-BNC
Adaptor
Antenna
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Table of contents
1. Introduction
Overview……………………………….……………………………..……………….11
2. Features
Main features …………………………………………………………………….…12
3. Functions
RF Field Strength Analyzer…………………………………………………..…….13
Frequency Counter……………………………………………………….………….13
Specifications………………………………………………………………...……….14
4. Instrument overview
Front Panel………………………………………………………………………...….18
Rear Panel…………………………………………………………………………….20
Side Panel…………………………………………………………………………….21
Top Panel…………………………………………………………………………..….22
5. Basic operation
Before Power On…………………………………………………………….……….23
Power O n……………………………………………………………………………...24
Turn on Power of Instrument………………………………..…………………….25
Description of operation screen…………………………..……………………….26
Reception Mode……………………………………………………………..……….32
Sweep Mode………………………………………………………………………….33
Set up Span……………………………………………………………………..…….34
Frequency Input……………………………………………………..………………. 35
Adjust Screen Level…………………………………………………….………….37
Run - Scanning…………………………………………………..….……………….38
Marker…………………………………………………………..…………………….39
Power Meter…………………………………………………………………………46
Setting of attenuator ………………………………………………………………….49
LCD Light……………………………………………………………………………...50
LCD Contrast………………………………………………………………………….51
Buzzer ON/OFF……………………………………………………..……………….52
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Save/Load………………………………………………………….………………….53
Frequency Counter…………………………………………………………….…….57
Power Source………………………………………………………………..……….59
Level Unit………………………………………………………………………..…….60
Reset………………………………………………………………………………..…61
Baud Rate…………………………………………………………………………..…62
Connection for PC……………………………………………………………………63
Auto Power……………………………………………………………………………64
Offset…………………………………………………………………………..………65
Menu……………………………………………………………..…………………….66
System……………………………………………………………..…….……………70
6. Description of key operating
Run [GHz] …………………………………………………………………….………73
Mode [MHz] ………………………………………………………………..…………73
Sweep [kHz] …………………………………………………………….……………74
Marker [DEL] …………………………………………………………………………74
No. 1 [Start/Stop] …………………………………………………….………………75
No. 2 [Span] ………………………………………………………………..…………75
No. 3 [Level] …………………………………………………………………….……76
No. 4 [Single]…………………….…………………………..………………………76
No. 5 [Multi]…………………………………………………………………………77
No. 6 [UNIT] ……..…………………………………………..………………………77
No. 7 [LCD Light] ……………………………………………………….……………78
No. 8 [LCD CONT; LCD Contrast] …………………………………………………78
No. 9 [Attenuator] ……………………………………………………………………79
No. 0 [system] …………………………………………………………..……………79
Shift……………………………………………………………………………….……80
Dot [Buzzer] ……………………………………………………………..……………80
Menu [Load] ………………………………………………………………….………81
Enter [Save] …………………………………………………………….……………81
Up/Down Keys and Knob Ke y………………………………………………………82
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Introduction (section 1)
Overview
The B&K Precision 2640 handheld RF Field Strength Analyzer is
optimized to analyze signals from many different source for multiple
applications. The B&K Precision 2640 has adopted a synthesizer method
and has a wideband reception range of 100 kHz to 2,000 MHz. The
characteristic of frequency response of the B&K Precision 2640 is
calculated by memorized calculation data from a “look up table”, and so it
enables the B&K Precision 2640 to measure accurate levels and make
easy analysis of a wide range of frequency bands.
The B&K Precision 2640 provides various functions and user-friendly
interface which makes it easy to use. The handheld RF Field Strength
Analyzer is ideal for users to test, install and maintain Mobile
Telecommunications Systems, Cellular and Cordless Phone, CB Paging,
Paging Systems, Cable and Satellite TV Systems as well as antenna site
measurements and maintenance. The B&K Precision 2640 supports RS
232C serial communication and has separate GUI software. So, user can
control the B&K Precision 2640 easily after connecting the B&K Precision
2640 with a personal computer, and can utilize the analyzed data
variously after converting or saving numerical value or graph.
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Features (section 2)
Main features
100 kHz to 2,000 MHz measurement range
Frequency Spectrum Analyzing Function and Frequency
Counter Function
Measure N-FM, W-FM, AM, SSB signals
Demodulate W-FM signals
Built-in 2 GHz Frequency Counter
Accurate Signal Level Measurement
Marker/Delta Marker/Squelch Adjustment Function
PLL tuning system for precise frequency tuning
Built-in Speaker
192 Pixels X 192 Pixels Back Light LCD
Menu selection method for Function selection
RS-232C Interface
User-friendly Icon Display
Maintenance of Wireless Telecommunications Equipments
General Usage for Installation and Maintenance of
Telecommunications Equipments
Installation and Maintenance of Cable
RFID Tag RF Strength Measurement
Installation and Maintenance of Satellite Antenna
Detection of Tapping and Hidden Camera
Functions (section 3)
RF Field Strength Analyzer
Spectrum: Peak Search, Marker to Center,
Internal Attn.: The input range can be extended by internal Ma x
10 dB Attn. function.
Sweep Mode: Single Run, Free Run, Squelch Run Selectable
Squelch Function: The Squelch Level may be adjusted to any
value from the reference level to Full Scale.
Frequency Counter
Frequency range: 35 MHz to 2,000 MHz
No. of digits: 7 digits
Resolution: 1 kHz
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AM/SSB : Approx. 2.4 kHz @-6 dB
125~2500kHz (Multiple of 125 kHz)
Selection Mode
Range
AM/SSB : -100 dBm Max.
Range
Division)
Accuracy
Specifications
Frequency
Amplitude
Frequency Range
Resolution
Accuracy
W-FM / N-FM
/ AM / SSB
Step Range
Span Range
Frequency
Measurement
Average noise
Level
Amplitude Units
Reference Level
Accuracy
100 kHz to 2,000 MHz
Min. 6.25KHz Multiples
± 4.5 PPM
Wide FM : Approx. 180 kHz @-6 dB
Narrow FM : Approx. 12.5 kHz @-6 dB
AM, SSB, Narrow FM : 6.25kHz, 12.5kHz
Wide F M : 6.25~125kHz (Multiple of 6.25 kHz)
AM, SSB, Narrow FM : 1MHz, 2MHz
Wide F M : 1~20MHz (Multiple of 1 MHz)
20~400MHz (Multiple of 20 MHz)
Center, St art/ Stop, Span
-45 dBm to –110 dBm
Wide FM : -100 dBm Max.
Narrow FM : -110 dBm Max.
dBm, dBmV, dBuV
±3.0 dB (typical) @ 400KHz to 600KHz
±2.0 dB @ over 600KHz
Reference Level
Log Scale
Internal Attn
Internal Attn
0 dBm to –80 dBm
0.2 dB/DIV min, in 0.25 dB Span (5 Display
10 dB
±1.0 dB (@25 ℃)
Specifications
/ Squelch Run
Storage
Sweep
Memory
Display
Speed
Trigger Source
Trigger Mode
Trigger Level
Marker Mode
Trace & Setup
Type
Display Resolution
LCD Light
Min. 500 msec
Narrow FM / Wide FM / AM / SSB
Free Run / Single Run / Continuous Wave
TTL Level
Maker / Delta Maker
Max 100 Waveforms and 100 States
Mono STN LCD
192 Pixels X 192 Pixels
On / Off
Frequency
Counter
Frequency Range
Resolution
Accuracy
Sampling Time
Input Sensitivity
Input Impedance
Max. Input Voltage
35 MHz to 2,000 MHz
7 Digits
±50 PPM ±1 COUNT
1 sec
35 MHz to 2,000 MHz : 150 mVrms
50 Ohms
5 Vrms Max.
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Specifications
Temperature
Source
PCS
Specification
Nickel Metal Hydride Battery
SMPS Type AC Adapter (DC 12 V Output)
Car-Adapter (DC 12 V Output)
increased in some point of time. The B&K Precision 2640
Spectrum
input Port
RF Input Connector
Max Input Level
N type Female, 50 Ohms
Max. +10 dBm, 5Vrms
Operation
Environment
Power
Source
Operating
Humidity
Storage Temp.
Battery Power
Battery
Adapter
Auto Power On/Off
A
The B&K Precision 2640 can be quickly recharged using Ni-MH
Rechargeable Batteries. The Recharged method of Ni-MH
Battery is controlled by the voltage of the Battery Cell and the
temperature of Battery. The external temperature of Ni-MH
Rechargeable Battery is gradually increased and then quickly
0 ℃ to 40 ℃
35 RH to 85 RH
10 ℃ to 50 ℃
AA Type Ni-MH Rechargeable Battery × 6
AA Type 1.2 V, 2,700 mAh Rechargeable
Off/ 5 min./ 10 min./ 20 min./30 min.
closes charging quickly after checking the increased amount
(dT/dt) of external temperature of Batter y for a u nit time. Also, for
Battery protection, the recharging is compuls ory closed by builtin temperature sensor in c as e that th e vol tage of Batte r y Cell will
be increased to m ore than some specified level or t he external
temperature of Battery will be going up to over 50C. For safe
usage, it is strongl y recommended to use Ni-MH Recharge able
battery, and please do not use in the place with high temperature
or high humidity during recharging.
Specifications
(including Antenna, except Battery)
Physical
Specifications
Standard
Accessories
Specifications and information is subject to change without notice.
For the most current product information please visit www.bkprecision.com
Dimension
Weight
Antenna (Receive Only), SMPS Type AC Adapter, Fuji-AA type NI-MH
Rechargeable Battery (6 PCS, 1.2 V 2,700 mAh), Manual, Coaxial
Cable, Earphone, Carrying Case, Carrying Belt, RS-232C Cable,
Adapter(N-BNC), Software for PC Application
4 ”(W)×9 ”(H)×1.8 ”(D)
Approx. 0.66 Kg(1.45 lbm)
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Shift
Power21Menu3Enter
4 5 6
7 8 9
0 .
Run
GHz
Mode
MHz
Sweep
kHz
Marker
DEL
Instrument overview (section 4)
Front Panel
Front Figure
LCD
Key Pad
The LCD screen can display the signal input level, frequency and
amplitude values, and the relative system data
Power Key
Key to turn ON/OFF the system
Run / Mode / Sweep / Marker Key
Run
Key to run the Scanning or input the GHz unit for frequency value
input
Front Panel
Mode
Key to set up the Reception Mode or input the MHz unit for
frequency value input
Sweep
Key to set up the Sweep Mode or input the kHz unit for frequency
value input
Marker
Key to select the Marker Function:
Marker, Delta Marker, Squelch Marker, Peak Search and Marker to
Center
Numeric Key
Key to input the frequenc y value
Menu Key
Key to set up the required functions of system
Up/Down Key
Key to select the Menu or Frequency Value
Knob Key
The function of Knob key is same as the Up/Down keys
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Rear Panel
Rear Figure
Belt Clip
User can yoke the B&K Precision 2640 on a belt.
Speaker
User can use the speaker to output the modulated audio from RF
signal level.
Reset Key
User can use this Reset key for system malfunctions or memory
reset.
Battery
Note the polarity of batteries at inserted battery compartment. And
user must use the AA type Ni-MH Rechargeable batteries for battery
charging
Side Panel
Side Figure
DC Input Jack
User can use this DC input jack for power supply and battery
charging with SMPS type AC/DC Adapter or Car Adapter.
RS-232C Connector (8 pin mini DIN connector)
User can use this RS-232C connector for PC communication with
serial cable.
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Top Panel
Top Figure
Input Connector for Signal Level
User can connect the antenna or coaxial cable to this connec tor on
the system. The maximum input voltage is 5 Vrms.
Input Connector for Frequency Counter
User can connect the signal source to be measured to this connector.
The maximum input voltage is 5 Vrms.
Volume Control
User can c ontrol the volume of audio output. To increase the volume
of audio output, turn the Volume Control to clockwise direction.
Earphone Jack
Basic operation (section 5)
Before Power ON
How to insert and charge the AA Type Ni-MH rechargeable batteries?
For the insertion of batteries, please release the screw on the battery
cover on the bottom of the instrument. And put in AA Type Ni-MH
rechargeable batteries (Total 6 PCS).
To charge the batteries after inserting batteries, connect the DC cable
plug of SMPS type adaptor to DC jack of system (DC output: 12V).
Battery charging will begin after DC cable in connected.
At this time, if user turns on the power of system, the battery icon on
the display window is displayed and blinking. And if the charging of
batteries is finished, the blanking of battery icon will stop and only be
displayed.
Connection
for Input
Level
To measure the input level of RF signal, connect the antenna or
coaxial cable to N-type connector of system (marked ANT)
Input Connector for RF Signal Level:
User can connect the antenna or coaxial cable to this connector on
the system. The maximum input voltage is 5 Vrms
Input Connector for Frequency Counter:
User can connect the signal source to be measured to this
connector. The maximum input voltage is 5 Vrms.
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Power ON
To turn on the system power, Press the
The system power is ON. The last displayed screen from the previous
usage will be displayed ( Prev ious setup status).
This system supports the simple manipulation with frequently used
function keys. To use this simple manipulation, push the key and
push the numerical key. The frequently used function is marked on the
numerical key below.
The upper right icons are the basic
User can select the shift mode or basic
key.
If the LCD screen is not readily visible, user can adjust the LCD
contrast to see LCD screen.
To adjust the LCD contrast, push the key. And push the No. 8
(LCD Contrast)
key. Until user’s desired LCD contrast is adjusted,
key.
mode and the mode.
mode by pressing the
use the Up/Down
To turn on the LCD light, push the key. And push the No. 7 (LCD
Light)
And to turn off the LCD light, push the key. And push the No. 7
(LCD Light)
For the LCD display, refer to below figure.
key. Then the LCD light is turned on.
key (Toggle ON/OFF).
keys and Knob key.
Turn on power of instrument
Power On
STEP 1
- Push the
Key.
STEP 2 (Adjust to LCD Contrast)
- Push the Key.
- Push the LCD CONTRAST (No.8) Key.
- Adjust to desired LCD Contrast using the Up/Down
or Knob
Key.
STEP 3
- Push the Dot Key and will be taken out of Menu.
STEP 4 (LCD Light On/Off)
Keys
- Push the Shift Key
STEP 5
- Push the No. 7 (LCD Light) Key
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Description of operating screen
ⓐ
ⓑ ⓒ ⓓ ⓔ
ⓕ
ⓖ
Display
1. ICON
window
1. ICON window 2. Frequency Input window
3. Wavy pattern window 4. Squelch window
5. Marker window
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