Handheld Spectrum Analyzers
Models 2650 and 2658
Specifications
Specifications
Frequency Section
Sweep Section
Sweep time
50 kHz to 3.3 GHz (2650)
50 kHz to 8.5 GHz (2658)
Frequency Range
10 ms to 30 s (1-3 step, frequency span: 0 to 2 GHz) and AUTO,
30 ms to 30 s (1-3 step, frequency span: full span) and AUTO (2650)
30 ms to 30 s (1-3 step, frequency span: 5 GHz) and AUTO (2658)
Setting range
Center Frequency
Setting resolution
100 kHz
within 0.1% 1 dot (frequency span: 0 to 2 GHz) (2650),
within 0.1% 1 dot (frequency span: 0 to 5 GHz) (2658),
within 1.5% 1 dot (frequency span: full span) (2650),
within 2.5% 1 dot (frequency span: full span) (2658)
within (30+20T) kHz 1 dot T: Sweep time(s)
(frequency span: 200 kHz to 10 MHz, RBW: 30 kHz, 23 5 °C)
within (100+700T)kHz 1dot T: Sweep time(s) (2650)
(frequency span: 20 MHz to 3.3 GHz (2650), RBW: 100 kHz, 23 5 °C
within (60+300T)kHz 1dot T: Sweep time(s) (2658)
(frequency span:20 MHz to 8.5 GHz (Model 2658), RBW: 100 kHz,
23 5 °C)
Accuracy
Accuracy
Trigger mode
AUTO(frequency span: zero span)
Positive peak, Negative peak, Sample (When sweep time is 10 ms
or 30 ms, only Sample can be set)
Detection mode
within 6% of RBW (RBW: 3 kHz, 30 kHz)
within 30% of RBW (RBW: 100 kHz to 3 MHz)
RBW frequency error
Frequency Span
Functions
NORM: displays frequency (7 digits max) and level (4 digits max) at
marker point.
DELTA: displays differential frequency and level between 2 markers.
0 Hz(zero span), 200 kHz to 2 GHz (2650) (1-2-5step) or
200 kHz to 5 GHz (2658) (1-2-5step),
Marker
Setting range
and 3.3 GHz (full span/ 2650) or 8.5 GHz (full span/ 2658)
NORM: searches a peak point within 10 div.
Available NEXT peak (10 max).
ZONE: searches a peak point within a zone designated by
center and width. Marker moves to a peak point each sweep.
within 3% 20T kHz 1dot
(frequency span: 200 kHz to 10 MHz, 23 5 °C)
within 3% 200T kHz 1dot (frequency span:
20 MHz to 3.3 GHz (2650), 20 MHz to 8.5 GHz (2658)
23 5 °C) T: Sweep time(s)
Peak search
Accuracy
NORM, MAX HOLD, MIN HOLD, AVERAGE, OVER WRITE
MAX/MIN HOLD: 2 to 1024 times, AVERAGE: 2 to 256
Calculation
Measuring
Frequency span/250
Frequency span/1000 (only measurement by RS-232C communication)
Display resolution
Display dot number
Channel power, Adjacent channel leakage power, Occupied frequency
bandwidth, Electric field strength (needs antenna), Magnetic field strength
(needs optional magnetic field probe) measurement.
251dots, 1001dots (only measurement by RS-232C communication)
(The unit displays data in 251 horizontal
dots, but it internally captures the trace in 1001 dots)
When pushing AUTO TUNE key, the maximum level spectrum within
3.3 GHz (2650), 8.5 GHz (2658) bandwidth is adjusted to center,
and reference level, RBW,
Resolution bandwidth
Setting range
Accuracy
3 dB bandwidth
3 kHz to 3 MHz(1-3step) and AUTO
within 20%
AUTO tuning
VBW and sweep time are adjusted to optimum values.
Save/Load
Selectivity
1:12 (typical, 3 dB : 60 dB)
100Hz to 1MHz(1-3step), and AUTO
-90 dBc/Hz (typical, 100 kHz offset, RBW: 3 kHz,
VBW: 100 Hz, Sweep time: 0.3s)
less than -60 dBc
less than -40 dBc (100 MHz to 3.3GHz/2650),
(100 MHz to 8.5 GHz/2658)
Save
Load
Saves 100 traces and 100 setups
Loads 1 trace and 1 setup
Video bandwidth
SSB phase noise
Spurious response
Harmonics
General
Input connector
Communication Interface
Baud rate
SMA(J)
RS-232C
2400 to 38400 bps
Amplitude Section
Reference level
Hard copy
Allows direct hard copy with an optional printer.
LCD
Setting range
+10 to -60 dBm (1 dB step)
Display
within 0.8 dB 1 dot, (center frequency: 100 MHz,
RBW: 3 MHz, VBW: 1 MHz, ATT: 0 dB, 23 5 °C)
dBm, dBV, dBmV, dBµV, dBµV/m, dBµA/m
(dBµV/m and dBµA/m using the measuring function)
-110 dBm (typical, center frequency: 100 MHz,
RBW: 3 kHz, VBW: 100 Hz)
within 2.0 dB 1 dot (100 kHz to 100 MHz)
within 1.0 dB 1 dot (100 MHz to 3.3 GHz/2650),
(100 MHz to 8.5 GHz/2658)
Accuracy
Unit
Backlight
CFL backlight
Resolution
240 (V) x 320 (H) dots
Ni-MH battery (optional)
Battery
Average noise level
External DC source
Operating temperature
DC jack,+4.75 to +5.25 VDC/4 A
Frequency Characteristic
0 to 40 °C (Guaranteed at 23 10 °C, without soft carrying case)
less than 40 °C/80% RH(Guaranteed at less than 33 °C /70% RH,
without soft carrying case)
Operating humidity
Input impedance
Input VSWR
50 Ω
less than 2.0
Storage temperature
Dimensions
-20 to 60°C, less than 60°C/70%RH
Input Attenuator
Operating range
Switching error
RBW switching error
Display dot number
Display Scale
162 (W) × 70 (H) × 260 (D) mm (exclude projections and stand)
approx. 1.8 kg (include battery), approx. 1.5 kg (without battery)
0 to 25 dB (1 dB step), coupled with reference level
Weight
within 0.6 dB
within 0.6 dB
200 dots
Two Year Warranty
AC adapter (BC 2650), Soft carrying case (LC 2650), Accessory pouch,
Operating manual, Ni-MH Battery (BP 2650)
Supplied Accessories
Optional Accessories:
Dipole antennas (AN 301,AN 302, AN 303,AN 304, AN 305,AN 306),
Magnetic field probe (PR 26M) with a dedicated double shielded coaxial
cable, PC software (AK 2650), Printer (PT 2650) with AC adapter. 4pcs
of AA batteries, and roll paper, Roll paper refill (PX 2650) for optional
printer PT 2650 (10 rolls),1 GHz coaxial adapter kit for RF test instru-
ments (CT 2701), Deluxe spectrum accessory kits (CC265 and CC560)
Scale
10 dB/div, 2 dB/div
within 0.8 dB/10 dB 1 dot,
within 0.2 dB/2 dB 1 dot,
within 1.6 dB/ 70 dB 1 dot
Accuracy
Input damage level
+23 dBm(CW average power), 25 VDC
2
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