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BK Precision 2658A 50 kHz - 8.5 GHz Handheld Spectrum Analyzer
BK Precision 2658A 50 kHz - 8.5 GHz Handheld Spectrum Analyzer

Our Price: $10,295.00

Quantity in Stock:1
Product Code: BK-2658A


B&K Precision’s 2658A is a compact, light weight and cost/effective spectrum analyzer for quick and precise signal investigations, especially away from the bench. At a weight of only 4 pounds (1.8 kg), the 2658A is by far the lightest full/featured spectrum analyzer available, yet it delivers performance and features comparable to a full/size bench spectrum analyzer and can operate up to 4 hours on a single battery.

With its ease of use, measurement flexibility and unmatched portability, the 2658A spectrum analyzer is an indispensible tool for engineers and technicians who conduct field measurements in the 50 kHz to 8.5 GHz range.

  • Impressive 4 hour battery life; easy/to/replace rechargeable Lithium/Ion battery
  • Fast sweep speed, minimum 10 ms, to help locate and identify elusive, transient interference signals
  • DANL (displayed average noise level) of /127 dBm
  • Large easy/to/read color display, 640 x 480 resolution
  • Measurement functions: channel/adjacent channel power, occupied bandwidth, electric and magnetic field strength
Frequency section
Frequency range50 kHz to 3.3 GHz (2652A)50 kHz to 8.5 GHz (2658A)
Center frequency
Setting resolution20 kHz Settable with rotary encoder, numeric or function key
Accuracywithin ± (30+20T) kHz±1 dot @frequency span: 200 kHz to 10 MHz, RBW 3 kHz, 23±5 °C
within ± (60+300T) kHz±1dot @frequency span: 20 MHz to max. frequency (3.3 GHz or 8.5 GHz), RBW 100 kHz, 23±5 °C
T: sweep time (s)
RBW frequency errorwithin ±4 kHz @ 3 kHz, 10 kHz, 30 kHz
within 20% of RBW @ RBW: 100 kHz, 300 kHz
within 10% of RBW @ RBW: 1 MHz, 3 MHz
Frequency span
Range0 Hz (zero span), 200 kHz to 2 GHz (1-2-5 step) and 3.3 GHz (full span)0 Hz (zero span), 200 kHz to 2 GHz (1-2-5 step) and 8.5 GHz (Full span)
Accuracywithin ±3% ±1dot @ sweep time of 0.3s, 23±5 °C
Display resolution # of points per trace501dots on LCD screen, 1001dots readout via PC (501 dots are visible on the display, 1001 dots of trace data are captured internally and can be transferred to a PC via USB device interface.)
Resolution bandwidth3 dB bandwidth (6 dB for 2651 @ 9 kHz, 120 kHz)
Range3 kHz to 3 MHz (1-3 sequence) and AUTO (2651: 3 kHz, 9 kHz, 30 kHz, 120 kHz, 300 kHz, 1 MHz, 3 MH
Shape Factor1:12 (typical, 3 dB : 60 dB)
Video bandwidth100 Hz to 1 MHz (1-3 step) and AUTO
SSB phase noise-90 dBc/Hz (typical) @100 kHz offset, RBW : 3 kHz, VBW : 100 Hz, sweep time: 1 s
Spurious responseless than -60 dBc
Harmonicsless than -40 dBc @ = 100 MHz
Amplitude section
Reference level
Range+10 to -60 dBm (1dB step)
Accuracywithin ± 0.8 dB ± 1 dot @ center frequency : 100 MHz, RBW : 3 MHz, VBW : 1 MHz, REF : -15 dBm, 23±5 °C
UnitdBm, dBV, dBmV, dBµV, dBµV/m, dBµA/m (dBµV/m and dBµA/m are used for measurement functions)
Average noise level-127 dBm (typical) @ CF : 1 GHz, RBW : 3 kHz, VBW : 100 Hz, Ref. level < - 40 dBm ( preamp automatically ON)
Frequency responsewithin ±2.0 dB ± 1 dot @50 kHz to 100 MHz
within ±1.0 dB ± 1 dot @100 MHz to max. frequency (3.3 GHz or 8.5 GHz)
Input impedance50 Ω
Input VSWR< 2.0
Input attenuator
Operating range0 to 25 dB (1 dB step), coupled with reference level
Switching error±0.6 dB @100 MHz
RBW switching error±0.6 dB
Display resolution (vertical)381 dots/10 div
Display scale
Scale10 dB/div, 5 dB/div, 2 dB/div
Accuracy±(0.2 dB+1dot)/2 dB ±(0.4 dB+1dot)/5 dB
±(0.8 dB+1dot)/10 dB ±(1.8 dB+1dot)/83 dB
Input damage level+27 dBm (CW average power), 25 VDC
Sweep section
Sweep time
Range (1-3 step)10 ms to 30 s and AUTO @frequency span : 0 to 2 GHz 30 ms to 30 s and AUTO @frequency span : full span10 ms to 30 s and AUTO @frequency span : 0 to 2 GHz 30 ms to 30 s and AUTO @frequency span : 5 GHz, full span
AccuracyWithin ±0.1 %±1d @frequency span : 0 to 2 GHz within ±1.5 %±1dot @ full spanWithin ±0.1 %±1dot @frequency span : 0 to 5 GHz within ±2.5 %±1dot @ full span
Trigger modeAUTO (Available only for zero span)
Trigger sourceInternal and External
External trigger
Input voltage range1 to 10 Vp-p
Frequency rangeDC to 5 MHz
Input couplingDC coupling
Trigger levelapprox. 0.56 V(fix)
Input RCapprox. 10 kΩ / less than 15 pF
Input damage level±50 V(DC+AC peak)
Input connectorSMA(J)
Detection modePositive peak, Negative peak, Sample ( QP and AV for model 2651 only.)
Marker measurementNORM:displays frequency (8 digits max) and level (4 digits max) at marker point.
DELTA:displays frequency difference and level difference between two markers.
Peak searchNORM: searches peak point within 10div (full freq. range). This mode also supports NEXT peak ( up to 10).
ZONE: searches peak point within a zone designated by center and width.
MeasurementsMeasure Channel power, Adjacent channel leakage power, Occupied frequency bandwidth, Electric field strength (requires antenna), Magnetic field strength (requires magnetic field probe).
Auto tuningAutomatically scans the full bandwidth, sets center frequency to the maximum signal within full span and centers it onscreen. Automatically adjusts reference level, RBW, VBW and sweep time to optimum values
SaveSaves 200 reference spectrum measurements and 200 setups
LoadLoads one reference spectrum measurement and one setup
RF Input connectorN(J) connector
USB Communication
ProtocolUSB version 1.1 (will also work with USB 2.0 devices)
Device ConnectorB plug
Transfer rate12 Mbps
Hard copyUSB printer (option) connected to A plug (host) enables hard copy of screen.
Host connectorA plug
Display5.7 inch color TFT LCD
BacklightLED backlight
Number of dots640(H) x 480(V) dots
Power supply
DedicatedInput : 100 to 240 VAC
AC adaptorOutput : 9 VDC/2.6 A
Lithium-ion battery7.4 V/5000 mAh Li-Ion battery (MB400)
Charge functionCapable of charging during power-off. Indicates 4 conditions with two color LED
Charge indicator5 level indicator of remaining battery charge
Environmental and Size
Operating temperature0 to 50° C (guaranteed at 23±10 °C, without soft carrying case)
Operating humidityless than 40 °C/80 %RH (guaranteed at less than 33 °C/70 %RH, without soft carrying case)
Storage temperature-20 to 60 °C, less than 60 °C/70 %RH
Dimensions6.38 (W) x 2.80 (H) x 10.43 (D) inch, 162(W) x 71(H) x 265(D) mm (excluding projections, protection bumper and stand)
Weightapprox. 1.8 kg or 4 lbs (including battery)

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