Datasheet > SPM-35A

SPM-35A

更新时间： 2022-12-16 23:10:21

品牌	Logo	应用领域
捷迪讯 - JDSU		/
页数	文件大小	规格书
4页	216K
描述
Selective Level Meters

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SPM-35A 数据手册

SPM-32A/-33A/-34A/-35A/-36A SELECTIVE LEVEL METERS

Specifications

Inputs

Input

Selective

Wideband

Frequency range

SPM-32A

Coaxial 75 Ω

< –120⁽¹⁾to +20 dBm

< –105⁽¹⁾to +20 dBm

< –110⁽¹⁾to +10 dBm

< 8 µV⁽¹⁾to 3.8 V

< –50 to +20 dBm

< –60 to +10 dBm

1 µV to 3.8 V

50 Hz to 620 kHz

50 Hz to 2 MHz

50 Hz to 3.5 MHz

Balanced 75 Ω to 150 Ω

Balanced 600 Ω

Voltage

⁽¹⁾For a bandwidth of 25 Hz, f ≥10 kHz; bal. 75 Ω : –100 dBm

SPM-33A/-34A/-35A

SPM-36A

Coaxial input

Versacon 9 Universal Connector (Fitted with the Versacon 9

Error limits of the level display

75 Ω basic connector and BNC insert.

Other types of insert – see Versacon data sheet

– should be ordered with the device.)

For Z_in= Z_out= Z₀, after calibration, with noise averaging, MAX. HOLD off, battery mode, includes rounding errors

Input impedance, selectable

75 Ω, high impedance

Intrinsic error and variation with level at 10 kHz and (23 3ꢀ ꢁC (table values in dBꢀ

Balanced input

Bal., all bandwidths

Connectors

Normally CF but see ordering information

0.ꢀ

0.ꢂ

0.ꢀ

–

Input impedance, selectable

75 Ω, 150 Ω*, 600 Ω,

high impedance

Bandwidths > 100 Hz

Coaxial 100 Hz bandwidth

25 Hz bandwidth

*135 Ω for BN 4033/02, /12 and /37

0.ꢀ

0.ꢁ

Signal balance ratio to ITU-T O.9

f ≤620 kHz,

signal balance ≥40 dB

0.3

0.1

0.3

Frequency

Level range/dBm

(75, 135, 150 Ω)

Level range/dBm, dB

(ꢁ00 Ω)

+20

–70

–80

–ꢂ0

–100

–110

Frequency setting

Numeric via keypad, in steps, resolution

Quasi-analog with up/down keys

Automatic search (adjustable threshold)

AFC

–100

1 Hz

Variation of level display with frequency

referred to 10 kHz, the input level being ≥40 dB above the intrinsic noise level (table values in dB)

Frequency display

LCD, 7 digits

3 ppm of set frequency

1 Hz

Error limits for tuning frequency

Coaxial

Z₀= ꢀ5 Ω

0.3

0.5

0.6

0.ꢀ

0.ꢁ

Level and Voltage Measurements

Z₀= ꢀ5

0.6

0.3

0.ꢂ

0.5

0.6

0.ꢀ

0.ꢃ

0.ꢁ

1.0

Balanced to 150 Ω

Level display

Digital display, max. resolution

Quasi-analog bargraph detects signal trends

Display range

0.01 dB

Balanced Z₀= 600 Ω

Intrinsic spurious noise up to max. test level (dBm), battery

power

Frequency range

50 Hz

100 Hz

620 kHz

1.62 MHz

2 MHz

3 MHz

3.5 MHz

Bandwidth selectable

Nominal value

25 Hz; 1.74 (1.95)* kHz; 3.1 kHz *BN 4033/02, /12, /37

>60 dB

Harmonic ratio ak2, ak3, for level ≤ –10 dBm

For fundamentals ≥2 kHz

Demodulator

Single sideband demodulation

Memory

Integral loudspeaker, volume adjustable

100 user-programmable setups, 100 results

Storage of

1 234

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