Keysight (Agilent) 8712B Data Sheet

REFLECTION

TRANSMISSION

Agilent 8712B and 8714B

RF Economy Vector
Network Analyzers

Data Sheet

8712B, 300kHz to 1.3 GHz
8714B, 300kHz to 3.0 GHz

Specifications

Measurement ports

8712B 8714B

50 and 75 ohm

Directivity 40 dB 40 dB

Source match 20 dB 20 dB
(reflection)

Source match 14 dB typical

1

23 dB typical at < 1.3 GHz,

(transmission) 20 dB typical at >1.3 GHz

Load match 18 dB typical 20 dB typical at <1.3 GHz,

18 dB typical at >1.3 GHz

Reflection Tracking 0 +0.4 dB typical 0 +0.2 dB typical

This table shows the residual Agilent Technologies 8712B and 8714B
system specifications. These characteristics apply at an environmental
temperature of 25° ±5° C, with less than 1° C deviation from the cali­bration temperature. Directivity and source match specifications apply

Source

Frequency

Range 300 kHz to 1.3 GHz (8712B)

300 kHz to 3.0 GHz (8714B)

Resolution 1 Hz

Stability +5 ppm 0˚ C to 55˚ C (typical)

Accuracy 1) +5 ppm at 25˚ C +5˚ C

2) <1 Hz at 10% change in line voltage

Harmonics <-20 dBc, <1MHz

<-30 dBc, >1MHz for 8712B
<-30 dBc for 8714B

Output Power

Resolution 0.01 dB
Level accuracy +1.0 dB

+1.5 dB Option 1EC

1

+2.0 dB Option 1E1
+3.0 dB Option 1EC1amd 1E1

Maximum and Minimum Power

8712 B 8714B

≤1.0 GHz >1.0GHz

Options minimum maximum minimum maximum minimum maximum

power power power power power power

No options 0 dBm 16 0 13 -5 10

1E1 -60 15 -60 12 -60 9

1EC

1

-3 13 -3 10 -8 7

1DA/DB -2 14 -2 11 -9 6

1E1 and 1EC

1

-60 12 -60 9 -60 6

1E1 and 1DA -60 13 -60 10 -60 5

1EC1and 1DB -5 11 -5 8 -12 3

1EC1, 1E1 and 1DB -60 10 -60 7 -60 2

1. All power specifications with Option 1EC (75 ohms) are typical above 2.0 GHz.

2

3

Receiver

Frequency range 8712B 8714B

Narrowband 300 kHz 300 kHz

to 1.3 GHz to 3.0 GHz

Broadband 0.10 to 1.3 GHz 0.10 to 3.0 GHz

Dynamic range

2

Narrowband >100 dB, ≥5 MHz
50 ohm (+10 to -90 dBm) >100 dB

>60 dB <5 MHz (+10 to -90 dBm)
(+10 to -50 dBm)

Narrowband >97 dB, >5 MHz >97 dB
75 ohm (+10 to -87 dBm) (+10 to -87 dBm)

>57 dB, <5 MHz
(+10 to -47 dBm)

Broadband
50 ohm >66 dB <66 dB

(+16 to -50 dBm) (+16 to -50 dBm)

75 ohm >63 dB >63 dB

(+16 to -47 dBm) (+16 to -47 dBm)

Damage level +23 dBm, +23 dBm,

+25 VDC +25 VDC

Maximum input

Narrowband +10 dBm +10 dBm
(0.5 dB compression)
Broadband +16 dBm +16 dBm
(0.55 dB compression)

2. Receiver dynamic range is calculated as the difference between maximum receiver input level and receiver’s noise floor. System dynamic range applies to transmission meas­urements only, since reflection measurements are limited by directivity. Noise floor is specified as the mean trace noise at specified CW frequencies. A signal at this level
would have a signal to noise ratio of 3 dB. Noise floor is measured with test ports terminated in loads, response and isolation calibration, 15 Hz IF bandwidth, 10 dB source
power and no averaging.

4

AM Delay (Option 1DA/1DB)

This option adds amplitude modulation group
delay capability, which allows measurements of
group delay through frequency-translation devices
such as tuners or mixers. Using two external scalar
detectors (86200B or 86201B) and a power splitter
(all included) this option measures group delay in
any device that does not have limiting circuits, satu­rated amplifiers, or automatic gain control.

Aperture 55.56 kHz

Resolution 1 ns /division

Accuracy

3

±4 ns

Delay range 30 µsec, (9000 m)

Amplitude range –10 to +13 dBm (typical)

Power Delay

0 to 10 dB ±10 ns

10 to 20 dB ±20 ns

AM Delay Dynamic Accuracy (typical)

4

Group Delay

Group delay is computed by measuring the phase
change within a specified frequency step (deter­mined by the frequency span, and the number of
points). This is also known as d(phi)/d(omega).

Aperture

Maximum aperture: 20% of frequency span
Minimum aperture: (frequency span) /
(number of points –1)

Range

The maximum delay is limited to measuring no
more than 180° of phase change within the mini­mum aperture. Range = 1 / (2 x minimum aperture)

Accuracy

The following graph shows group delay accuracy at

1.3 GHz with type-N transmission calibration and
15 Hz IF bandwidth. Insertion loss is assumed to
be <2 dB and electrical length to be ten meters.

3. Specified at 0 dBm, 16 averages, well-matched device, normalized.

4. Normalized at +10 dBm.

Group Delay

Group Delay Accuracy

Frequency = 1.3 GHz Electrical Length = 10 meters

100

10

1

.1

Uncertainty - nsec

.01

.01

.01

.1

1

Aperture - MHz

10 100