Manual

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Model 835-M Programmer’s

Manual

V1.1 2011

[SOURce]:POWer:ALC:HOLD

ON

|OFF

|1|0

[

S

OU

Rce]

:POWer:AL

C

?

(Devices

with option

PE

only)

This command sets

the automatic level control into hold mode. The amplitude level control loop

is

open.

*RST

The preset value

is

0

:ATTenuation

[SOURce]:POWer:ATTenuation

<value> [SOURce]:POWer:ATTenuation?

(Devices

with option

PE

only)

This command sets

the power range extension attenuator.

This command

will

also

turn

off

automatic

attenuation setting. Refer to

[SOURce]:POWer:ATTenuation:AUTO

OFF

for details. Attenuator input

RF

power

shall

be

-30…+10 dBm,

e.g.

using

a

[SOURce]:P

O

Wer:AT

Tenu

ation

value of 50

dB,

the output

RF

power range

is

-80…-40 dBm.

*RST

The preset value

is

0

:ATTenuation:AUTO

[SOURce]:POWer:ATTenuation:AUTO ON|OFF|1|0

[SOURce]:POWer:ATTenuation:AUTO?

(Devices

with option

PE

only)

This command

turns the power range extension on or off.

Turning

it off allows fast

power

sweeps

for

devices

featuring an extended output power range.

*RST

The preset value

is

0

:ATTenuation:LIST?

[SOURce]:POWer:ATTenu

a

tion:AUTO?

(Devices

with option

PE

only)

This

query

returns

a

comma-separated

list of available attenuation

settings. These can

be set

using

the

[SOURce]:POWer:ATTenuation

command.

Available

settings

are:

0, 35, 70

dB

for option

PE

2A

0,

10,

20, …, 70

dB

for option PE3

0,

10,

20, …,

110 dB

for option PE4

0, 35, 70,

105 dB

for option PE5