Specifications – B&K Precision 2640 - Datasheet User Manual
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Accessories
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Handheld RF Field Strength Meter
Model 2640
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Frequency Range
100 kHz to 2,000 MHz
Resolution
Min. 6.25 kHz Multiples
Accuracy
± 4.5 PPM
W-FM / N-FM
Wide FM : Approx. 180 kHz @-6 dB
/ AM / SSB
Narrow FM : Approx. 12.5KHz @-6 dB
AM/SSB : Approx. 2.4 kHz @-6 dB
Step Range
AM, SSB, Narrow FM : 6.25 kHz, 12.5 kHz
Wide FM : 6.25~125 kHz (Multiple of 6.25 kHz)
125~2500 kHz (Multiple of 125 kHz)
Span Range
AM, SSB, Narrow FM : 1 MHz, 2 MHz
Wide FM : 1~20 MHz (Multiple of 1 MHz)
20~400 MHz (Multiple of 20 MHz)
Frequency Selection Mode
Center, Start/ Stop, Span
A
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Measurement Range
-45 dBm to –110 dBm
Average noise Level
Wide FM : -100 dBm Max.
Narrow FM : -110 dBm Max.
AM/SSB : -100 dBm Max.
Amplitude Units
dBm, dBmV, dBuV
Reference Level Accuracy
±3.0 dB (Typical) @ 400 kHz to 600 kHz
±2.0 dB @ over 600 kHz
Reference Level Range
0 dBm to –80 dBm
Log Scale
0.2 dB/DIV min, in 0.25 dB Span (5 Display Division)
Internal Attn
10 dB
Internal Attn Accuracy
±1.0 dB (@25)
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Speed
Min. 500 msec
Trigger Source
Narrow FM / Wide FM / AM / SSB
Trigger Mode
Free Run /Single Run /Continuous /Wave Squelch Run
Trigger Level
TTL Level
Marker Mode
Marker / Delta Marker
M
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Trace & Setup Storage
Max 100 Waveforms and 100 States
D
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Type
Mono STN LCD
Display Resolution
192 Pixels X 192 Pixels
LCD Light
On / Off
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Frequency Range
35 MHz to 2,000 MHz
Resolution
7 Digits
Accuracy
±50 PPM ±1 COUNT
Sampling Time
1 sec
Input Sensitivity
35 MHz to 2,000 MHz : 150 mVrms
20 MHz to 1,000 MHz : 100 mVrms
Input Impedance
50 Ω
Max. Input Voltage
5 Vrms Max.
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RF Input Connector
N type Female, 50Ω
Max Input Level
Max. +10 dBm, 5V rms
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Operating Temperature
0º C to 40º C
Humidity
35% RH to 85% RHP
Storage Temperature
10º C to 50º C
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Battery Power Source
AA Type Ni-MH Rechargeable Battery × 6 PCS
Battery Specification
AA Type 1.2 V, 2,700 mAh Rechargeable Nickel
Metal Hydride Battery
Adapter
SMPS Type AC Adapter (DC 12 V Output)
Car-Adapter (DC 12 V Output)
Auto Power On/Off
Off/ 5 min./ 10 min./ 20 min./30 min.
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Dimension
4 ”(W)×9 ”(H)×1.8 ”(D)
Weight
Approx. 0.66 kg(1.45 lbs)
(including Antenna, except Battery)
Supplied: 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
The included AK2640 software and interface cable allows full control of the 2640
via a PC through the RS232C interface. The software allows the saving, recalling
and analyzing of current and saved waveforms. The 2640 can save up to 100
waveforms and states in to it’s internal memory.
Screenshot of the AK2640 software
Screenshot of the exported CSV data
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Spectrum: Peak Search, Marker to Center, Channel Power
Function
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Internal Attenuation: The input range can be extended by
enabling the internal 10 dB Attenuation function
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Sweep Mode: Single Run, Free Run, Squelch Run Selectable
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Squelch Function: The Squelch Level may be adjusted across the
full dynamic range.
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The 2640’s built in frequency counter is independent from the field strength
analyzer and measures the signal applied to the external BNC connector
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Frequency range: 35 MHz to 2,000 MHz
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No. of digits: 7 digits
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Resolution: 1 kHz
Volume
Earphone
RF Input
Type N
Frequency
Counter
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Specifications
model
One Year Warranty
2640