PicoVNA Series

Low-cost, professional-grade 6 GHz and 8.5 GHz VNAs for both lab and field use

Frequently asked questions Book a demonstration

PicoVNA specifications

Standard conditions: 10 Hz resolution bandwidth, at 13 dBm (PicoVNA 106) or 0 dBm (PicoVNA 108) test power, at an ambient temperature of between 20°C and 30°C but within 1°C of the calibration temperature and 60 minutes after power-up.

Receiver characteristics
Parameter Value (PicoVNA 106) Value (PicoVNA 108) Conditions
Measurement bandwidth 140 kHz, 70 kHz, 35 kHz, 15 kHz, 10 kHz, 5 kHz, 1 kHz, 500 Hz, 100 Hz, 50 Hz, 10 Hz  
Average displayed noise floor
Band (MHz)
0.3–10
10–4000
> 4000
Typical (dB)
–110
–118
–110
Max. (dB)
–100
–108
–100
Band (MHz)
0.3–1
1–6G
> 6G
Typical (dB)
–100
–124
–120
Max. (dB)
–90
–110
–100
Relative to the test signal level set to maximum power after an S21 calibration.
Ports terminated as during the isolation calibration step.
Dynamic range

See dynamic range in the product features. Excludes crosstalk.

10 Hz bandwidth
Maximum test power:
  PicoVNA 106: +6 dBm
  PicoVNA 108: 0 dBm
No averaging

 
Temperature stability, typical 0.02 dB/ °C for F < 4 GHz
0.04 dB/ °C for F ≥ 4 GHz
Measured after an S21 calibration
Trace noise, dB RMS
Bandwidth
10 kHz
70 kHz
140 kHz
Typical
0.0008 dB
0.003 dB
0.005 dB [106]
0.006 dB [108]
Max.
0.002 dB
0.005 dB
0.01 dB
201-point sweep covering 1 MHz to 6 GHz or 8.5 GHz.
Test power set to 0 dBm.
Measurement uncertainty See table below   Test level of –3 dBm
No averaging
Bandwidth 10 Hz
Ambient temperature equal to the calibration temperature.
A 12 error term calibration is assumed carried out with a good quality 3.5 mm calibration kit capable of achieving the performance specified.
Spurious responses –76 dBc typical, –70 dBc max.   The main spurious response occurs at close to (2 x RF + 1.3) MHz, where RF is the test frequency in MHz. For example, when testing a bandpass filter with a centre frequency of, say 1900 MHz, an unwanted response will occur around 949.35 MHz. There may also be spurious responses close to (3 x RF + 2.6) MHz. In all known cases the levels will be as stated.
Measurement uncertainty - value
PC3.5 test port interfaces
Reflection measurements Transmission measurements
Freq. range Magnitude Phase Freq. range Magnitude Phase
–15 dB to 0 dB 0 dBm to +6 dBm
< 2 MHz 0.7 dB < 2 MHz 0.4 dB
> 2 MHz 0.5 dB > 2 MHz 0.2 dB
–25 dB to –15 dB  –40 dB to 0 dB
< 2 MHz 0.8 dB < 2 MHz 0.2 dB
> 2 MHz 1.0 dB > 2 MHz 0.1 dB
–30 dB to –25 dB  –60 dB to –40 dB
< 2 MHz 3.0 dB 20° < 2 MHz 0.5 dB [106]
0.3 dB [108]
> 2 MHz 2.5 dB [106]
3.0 dB [108]
15°
20°
> 2 MHz 0.3 dB
       –80 dB to –60 dB
      < 2 MHz 2.0 dB 15°
      > 2 MHz 1.5 dB 12°
SMA test port interfaces
–15 dB to 0 dB +0 dBm to +6 dBm
< 2 MHz 0.99 dB 11.3° < 2 MHz 0.57 dB 8.5°
> 2 MHz 0.71 dB 5.7° > 2 MHz 0.28 dB 2.8°
–25 dB to –15 dB  –40 dB to 0 dB
< 2 MHz 1.13 dB 14.1° < 2 MHz 0.42 dB 2.8°
> 2 MHz 1.41 dB 8.5° > 2 MHz 0.14 dB 1.4°
–30 dB to –25 dB  –60 dB to –40 dB
< 2 MHz 4.24 dB 28.3° < 2 MHz 0.71 dB 11.3°
> 2 MHz 3.54 dB 21.2° > 2 MHz 0.42 dB 5.7°
       –80 dB to –60 dB
      < 2 MHz 2.83 dB 21.2°
      > 2 MHz 2.12 dB 17.0°
Test port characteristics
Parameter PicoVNA 106 PicoVNA 108 Conditions
Load match
Uncorrected:
Corrected:
16 dB, typical [106]
15 dB, typical [108]
46 dB, typical
40 dB, min
 
Source match
Uncorrected:
Corrected:
16 dB, typical [106]
15 db, typical [108]
46 dB, typical
40 dB, min
 
Directivity
Corrected: 47 dB, typical
40 dB, min
 
Crosstalk
Band
< 2 MHz
2 M–4 GHz
4–6 GHz
Typical
–100
–110
–100
Max
–90
–90
–90
Band
< 1 MHz
2 M–6 GHz
6–8.5 GHz
Typical
–100
–110
–100
Max
–90
–90
–90
Corrected.
Both calibrated ports terminated in short circuits.
After isolation calibration.
Maximum input level +10 dBm, typ 0.1 dB compression
Maximum input level +20 dBm +23 dBm No damage
Impedance 50 Ω  
Connectors Type N(f)  
Bias-T input characteristics
Parameter PicoVNA 106 PicoVNA 108 Conditions
Maximum current 250 mA  
Maximum DC voltage ±15 V  
Current protection Built-in resettable fuse  
DC port connectors SMB(m)  
Sweep I/O characteristics
Sweep trigger output voltage Low: 0 V to 0.8 V
High: 2.2 V to 3.6 V
 
Sweep trigger input voltage Low: –0.1 V to 1 V
High: 2.0 V to 4 V
 
Sweep trigger input voltage ±6 V No damage
Sweep trigger in/out connectors BNC(f) on back panel  
Measuring functions
Measuring parameters S11, S21, S22, S12
P1dB (1 dB gain compression)
AM-PM conversion factor (PM due to AM)
Mixer conversion loss, return loss, isolation and compression (PicoVNA 108 only)
 
Error correction 12 error term full S-parameter correction (insertable DUT)
12 error term full S-parameter correction (non-insertable DUT)
8 error term full S-parameter unknown thru correction (non-insertable DUT)
S11 (1-port correction)
De-embed (2 embedding networks may be specified), impedance conversion
S21 (normalize, normalize + isolation)
S21 (source match correction + normalize + isolation)
Averaging, smoothing
Hanning and Kaiser–Bessel filtering on time-domain measurements
Electrical length compensation (manual)
Electrical length compensation (auto)
Effective dielectric constant correction
 
Display channels 4 channels  
Traces 2 traces per display channel  
Display formats Amplitude (logarithmic and linear)
Phase, Group Delay, VSWR, Real, Imaginary, Smith Chart, Polar, Time Domain
 
Memory trace One per display channel  
Limit lines 6 segments per channel (overlap allowed)  
Markers 8 markers  
Marker functions Normal, Δ marker, fixed marker, peak / min. hold, 3 dB and 6 dB bandwidth  
Sweep functions
Parameter PicoVNA 106 PicoVNA 108 Conditions
Sweep type Linear sweep
CW sweep (timed sweep)
Power sweep (P1dB utility)
 
Sweep times
Bandwidth S11, S21, S11+S21 calibration Full 12 or 8-term calibration
140 kHz 19 ms [106]
20 ms [108]
37 ms [106]
38 ms [108]
10 kHz 37 ms 72 ms
1 kHz 0.21 s 0.42 s
100 Hz 1.94 s 3.87 s
10 Hz 19.2 s 38.4 s
LF Adder (For each low frequency point <2.5 MHz) 1.25 ms/pt 2.5 ms/pt

10 MHz to 6 GHz or 8.5 GHz, 201-point trace length. For other lengths and bandwidths, sweep time is approximately:
TSWP (s)= N x (TMIN + FBW / RBW) + TARM
where N = number of frequency points,
TMIN (s)= minimum time per point (s2p: 167 μs; s1p: 85 μs),
FBW = bandwidth settle factor (s2p: 1.91; s1p: 0.956),
RBW = resolution bandwidth (Hz).
For sweep repetition period add software rearm time:
TARM = average 6.5 ms or worst case 50 ms. For markers on, increase TARM by 39 ms.

Number of sweep points, VNA mode 51, 101, 201, 401, 801, 1001, 2001, 4001, 5001, 6001, 7001, 8001, 9001,10001  
Number of sweep points, TDR mode 512, 1024, 2048, 4096  
Signal source characteristics
Parameter PicoVNA 106 PicoVNA 108 Conditions
Frequency range 300 kHz to 6.0 GHz 300 kHz to 8.5 GHz  
Frequency setting resolution 10 Hz  
Frequency accuracy 10 ppm max With ambient of 23 ±3 °C
Frequency temperature stability ±0.5 ppm/ºC max Over the range +15 °C to +35 °C
Harmonics –20 dBc max With test power set to < –3 dBm
Non-harmonic spurious –40 dBc typical  
Phase noise (10 kHz offset) 0.3 MHz to 1 GHz: –90 dBc/Hz
1 GHz to 4 GHz: –80 dBc/Hz
> 4 GHz: –76 dBc/Hz
 
Test signal power
F < 10 MHz: –3 to –20 dBm
10 MHz < F < 4 GHz: +6 to –20 dBm
F > 4 GHz: +3 to –20 dBm

≤ 6 GHz:

+10 dBm to –20 dBm

> 6 GHz: + 6 dBm to –20 dBm
 
Power setting resolution 0.1 dB    
Power setting accuracy ±1.5 dB    
Reference input frequency 10 MHz ±6 ppm    
Reference input level 0 ±3 dBm    
Reference output level 0 ±3 dBm    
Miscellaneous
Controlling PC data interface USB 2.0
Support for third party test software Dynamic Link Library (DLL) as part of user interface software
External dimensions (mm) 286 x 174 x 61 (L x W x H)
Excluding connectors
Weight 1.9 kg
Temperature range (operating) +5 °C to +40 °C
Temperature range (storage) –20 °C to +50 °C
Humidity 80% max, non-condensing
Vibration (storage) 0.5 g, 5 Hz to 300 Hz
Power source and current +12 to +15 V DC, 22 W (PicoVNA 106) / 25 W (PicoVNA 108)
Power source connector 5.5 mm diameter hole, 2.1 mm diameter centre contact pin.
Centre pin is positive.
Host PC requirements Microsoft Windows 7, 8 or 10
2 GB RAM or more
Safety Conforms to EN61010-1:2010 and EN61010-2-030:2010
Warranty 3 years