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Receiver characteristics | |||||||||
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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 |
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Relative to the test signal level set to maximum power after an S21 calibration. Ports terminated as during the isolation calibration step. |
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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 |
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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 |
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201-point sweep covering 1 MHz to 6 GHz or 8.5 GHz. Test power set to 0 dBm. |
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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. |
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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 | |||||
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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 | 8° | < 2 MHz | 0.4 dB | 6° |
> 2 MHz | 0.5 dB | 4° | > 2 MHz | 0.2 dB | 2° |
–25 dB to –15 dB | –40 dB to 0 dB | ||||
< 2 MHz | 0.8 dB | 6° | < 2 MHz | 0.2 dB | 2° |
> 2 MHz | 1.0 dB | 6° | > 2 MHz | 0.1 dB | 1° |
–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] | 8° |
> 2 MHz | 2.5 dB [106] 3.0 dB [108] | 15° 20° |
> 2 MHz | 0.3 dB | 4° |
–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 | |||||||||
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Parameter | PicoVNA 106 | PicoVNA 108 | Conditions | ||||||
Load match |
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Source match |
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Directivity |
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Crosstalk |
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Corrected. Both calibrated ports terminated in short circuits. After isolation calibration. |
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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 | |||
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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 | |||
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Sweep trigger output voltage | Low: 0 V to 0.8 V High: 2.2 V to 3.6 V |
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Sweep trigger input voltage | Low: –0.1 V to 1 V High: 2.0 V to 4 V |
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Sweep trigger input voltage | ±6 V | No damage | |
Sweep trigger in/out connectors | BNC(f) on back panel |
Measuring functions | |||
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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) |
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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 |
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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 |
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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 | ||||||||||||||||||||||||
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Parameter | PicoVNA 106 | PicoVNA 108 | Conditions | |||||||||||||||||||||
Sweep type | Linear sweep CW sweep (timed sweep) Power sweep (P1dB utility) |
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Sweep times |
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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. |
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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 | |||||||||||||
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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 |
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Test signal power |
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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 | |
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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 |