Table 1-7. Recommended Accessories

Equipment

 

 

Critical Speci￿cations for

Recommended

 

 

 

Accessory Substitution

Model

Attenuator, 3 dB

Type N (m to f)

 

 

 

HP 8491A

 

Attenuation: 3 dB

 

 

 

Option 003

 

Frequency: dc to 12.4 GHz

 

Attenuator, 10 dB

Type N (m to f)

 

 

 

HP 8491A

 

 

 

 

Frequency: 300 MHz

 

 

Option 010

Attenuator, 1 dB Step

Attenuation

Range:

 

0 to 12 dB

HP 355C

 

 

Frequency

Range:

50 MHz

 

 

Connectors:

 

BNC female

 

 

Attenuator, 10 dB Step

Attenuation

Range:

 

0 to 30 dB

HP 355D

 

 

Frequency

Range:

50 MHz

 

 

Connectors:

 

BNC female

 

 

Directional Bridge

Frequency

Range:

0.1 to 110 MHz

HP 8721A

 

Directivity:

 

>40 dB

 

 

 

 

Maximum VSWR: 1.1:1

 

 

 

Transmission

Arm Loss:

6 dB (nominal)

 

 

Coupling Arm Loss:

6 dB (nominal)

 

Directional Coupler

Frequency Range: 1.7 GHz to 8 GHz

 

0955-0125

 

Coupling: 16 dB (nominal)

 

 

Max. Coupling Deviation: 61 dB

 

 

Directivity: 14 dB minimum

 

 

Flatness: 0.75 dB maximum

 

 

VSWR: <1.45

 

 

 

 

 

Insertion Loss: <1.3 dB

 

 

Low Pass Filter,

Cuto￿ Frequency: 50 MHz

0955-0306

50 MHz

Rejection at 80 MHz:

>50 dB

 

Low Pass Filter,

Cuto￿ Frequency: 300 MHz

0955-0455

300 MHz

Bandpass Insertion Loss:

<0.9 dB

 

 

at 300 MHz

 

 

 

 

 

1-14 Calibrating

Stopband Insertion Loss: >40 dB

 

at 435 MHz

 

 

 

 

 

Low Pass Filter,

Cuto￿ Frequency:

4.4 GHz

HP 11689A

4.4 GHz

Rejection at 5.5 GHz: >40 dB