Elecraft W2 Serial Interface Commands User Manual

Elecraft w2 serial interface commands

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Page 1

The W2 serial port is configured for 9600 baud, 8 databits, 1 stopbit, no handshake.

Purpose

Purpose

String Length

3 chars.

display of Forward Power LED's.

Response

String Length

3 chars.

Notes

Response
Notes

Purpose

Purpose

String Length
Response

String Length

3 chars.

Notes

Response
Notes

Purpose

Purpose

String Length

3 chars.

String Length

3 chars.

Response

Response

Notes

Notes

Purpose

Purpose

String Length

String Length

3 chars.

Response

Response

Notes

Notes

Purpose

Purpose

String Length

9 chars.

String Length

9 chars.

Response

Response

Notes

Notes

Purpose

Purpose

String Length

13 chars.

String Length

5 chars

Response

Response

Notes

Notes

Purpose

Purpose

String Length

3 char.

String Length

6 chars.

Response

Response

Notes

Notes

A

or

a

Toggle locking SWR Alarm On/Off.

"0" is non-locking, "1" will lock.

Command

Toggles between Average or PEP

EEPROM: No

EEPROM: Yes

Elecraft W2 Serial Interface Commands

Revision D, April 12, 2010. Applies to firmware rev 1.00 or higher.

Copyright © 2009 - 2010, Elecraft, Inc.; All Rights Reserved

The W2 responds to commands for data supplied by the external system. Nothing is sent until a command is received by the
W2. These requests are in the form of a single letter as shown below. The user sends a single character and receives one data
string in response. The semicolon (;) is an end-of-string identifier, and will be at the end of every return string. The strings
vary in length. Use the table below to determine the output from your command input.

Command

Returns only [C/c] if not in Alarm.

"1" = Sensor1, "2" = Sensor2.

[A/a][0/1];

Command

Toggles between Average or PEP

Command

Command

B

or

b

[P/p][0/1];

EEPROM:

EEPROM:

EEPROM: Yes

EEPROM: Yes

C

or

c

Reset from SWR Alarm

O

or

o

Toggles between two Sensors.

[C/c]!;

[O/o][1/2];

EEPROM: No

[N/n][A/P];

Command

Command

Command

D

or

d

P

or

p

Toggles Peak-Hold LED On/Off.

Command

Command

F

or

f

Request Forward Power in Watts.

Request Reverse Power in Watts.

[R/r]nnnnnDn;

(Watt value) -D- (number of

Same as "F" (left)

EEPROM: No

L

or

l

Toggles W2 LED's On/Off

V

or

v

Request Firmware version.

[L/l][0/1];

Vn.nn;

"0" is LED's Off, "1" is LED's On.

n.nn is the version 0.01 to 9.99

EEPROM: Yes

EEPROM: No

E l e c r a f t • w w w . e l e c r a f t . c o m • 8 3 1 - 7 6 3 - 4 2 1 1

R

or

r

decimal places).

M
or
m

[M/m][A/P];
"A" = Average, "P" = PEP.

N

or

n

"A" = Average, "P" = PEP.

value of Power serial data.

Command

EEPROM: No

Command

I

or

i

Request W2 config information.

[F/f]nnnnnDn;

[I/i][Info String];
See page 3 for String details.

EEPROM: Yes

EEPROM: No

EEPROM: No

Command

Command

S

or

s

Request the SWR value.

[S/s]nnnn;
nnn has implied dp "nn.nn".

"0" = Off, "1" = On.

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