Ms2687b specifications – Anritsu MS2687B User Manual

Page 14

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14

MS2687B Specifications

Specified values are obtained after warming up the equipment for 30 minutes at a constant ambient temperature and then
performing calibration. The typical values are given for reference, and are not guaranteed.

Frequency range

9 kHz to 30 GHz
Band

Frequency range

Mixer harmonics order [N]

0

9 kHz to 3.2 GHz

1

1–

3.15 to 6.3 GHz

1

Frequency band

1+

6.2 to 7.9 GHz

1

2+

7.8 to 15.3 GHz

2

4+

15.2 to 30 GHz

4

Pre-selector range

Pre-selector range: 3.15 to 30 GHz (band 1–, 1+, 2+, 4+)
± (Display frequency x reference frequency accuracy + span x span accuracy + resolution bandwidth x

Display frequency

0.15 + 10 Hz x N Hz)

accuracy

Normal marker: same as frequency display accuracy, Delta marker: same as span accuracy, N : Mixer
harmonics order

Frequency counter resolution

1 Hz, 10 Hz, 100 Hz, 1 kHz (counts the received frequency at the peak point inside the zone)

Frequency counter

± (Display frequency x reference frequency accuracy +2 x N Hz + 1 LSD)

accuracy

(at S/N 20 dB or more and RBW 3 MHz or less), N : Mixer harmonics order

Frequency span

Setting range: 0 Hz, and 5 kHz to 30 GHz, accuracy: ±1.0% (band 0, 1), ±2.5% (band 2, 4)

At single band sweep, data point 1001

Setting range: 300 Hz to 3 MHz (1, 3 sequence), 5 MHz, 10 MHz, 20 MHz (0 band)

Resolution bandwidth

Manually settable, or automatically settable according to frequency span

(RBW) [3 dB bandwidth]

Accuracy: ±20% (300 Hz to 10 MHz), ±40% (20 MHz)
Selectivity (60 dB: 3 dB):

15 : 1

Video bandwidth (VBW)

1 Hz to 3 MHz (1, 3 sequence), Off

Manually settable, or automatically settable according to RBW

Signal purity

Noise singleband:

–108 dBc/Hz (1 GHz, 10 kHz offset),

–120 dBc/Hz (1 GHz, 100 kHz offset)

Spurious resulting from local cause:

–65 dBc (at harmonic mixing order 1)

Frequency: 10 MHz

Reference oscillator

Start-up characteristics:

5 x 10

–8

(after 10 minutes warm-up, with frequency after 24 hours warm-up referenced)

Aging rate:

2 x 10

–8

/day,

1 x 10

–7

/year (with frequency after 24 hours of warm-up referenced)

Temperature characteristics: ±5 x 10

–8

(0 to 50˚C, with frequency at 25˚C referenced)

Measurement range: Average noise level to +30 dBm
Maximum input level

Continuous average power: +30 dBm (RF ATT:

10 dB)

Peak pulse input: +47 dBm (pulse width

1 µs, duty ratio

1%, RF ATT:

30 dB)

DC voltage: 0 Vdc

Average noise level display

RBW: 300 Hz, VBW: 1 Hz, RF ATT 0 dB, in SAMPLE detection mode

–124 dBm + f [GHz] dB (1 MHz to 2.5 GHz, band 0)

Level measurement

–120 dBm + f [GHz] dB

(2.5 to 3.2 GHz, band 0)

–115 dBm

(3.15 to 7.9 GHz, band 1)

–113 dBm

(7.8 to 15.3 GHz, band 2)

–103 dBm

(15.2 to 30.0 GHz, band 4)

Residual response: RF ATT 0 dB, input terminated at 50

–100 dBm

(1 MHz to 3.2 GHz, band 0),

–90 dBm

(3.15 to 7.8 GHz, band 1)

Setting range

Log scale: –100 to +40 dBm or equivalent level, Linear scale: 2.24 µV to 22.4 V

Unit

Log scale: dBm, dBµV, dBmV, dBµV (emf), W, V, dBµV/m
Linear scale: V

Reference level accuracy:

±0.5 dB (–49.9 to 0 dBm), ±0.75 dB (+0.1 to +30 dBm, –69.9 to –50 dBm), ±1.5 dB (–80 to –70 dBm)

Reference level

After calibration, at 50 MHz, span: 1 MHz (when RF ATT, RBW, VBW, and sweep time set to AUTO)

RBW switching uncertainty:

±0.3 dB (300 Hz to 5 MHz), ±0.5 dB (10, 20 MHz)

After calibration, with RBW 3 kHz referenced

Input attenuator (RF ATT):

Setting range: 0 to 70 dB (10 dB step), manually settable, or automatically settable according to reference level
Switching uncertainty: ±0.3 dB (10 to 50 dB), ±0.5 dB (50 to 70 dB)

With 50 MHz, RF ATT 10 dB referenced

F

requency

Amplitude

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