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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

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

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.

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

[P/p][0/1];

EEPROM:

EEPROM: Yes

Reset from SWR Alarm

Toggles between two Sensors.

[C/c]!;

[O/o][1/2];

EEPROM: No

[N/n][A/P];

Command

Toggles Peak-Hold LED On/Off.

Command

Request Forward Power in Watts.

Request Reverse Power in Watts.

[R/r]nnnnnDn;

(Watt value) -D- (number of

Same as "F" (left)

EEPROM: No

Toggles W2 LED's On/Off

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

decimal places).

[M/m][A/P];

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

value of Power serial data.

Command

EEPROM: No

Command

Request W2 config information.

[F/f]nnnnnDn;

[I/i][Info String];

See page 3 for String details.

EEPROM: Yes

EEPROM: No

Command

Request the SWR value.

[S/s]nnnn;

nnn has implied dp "nn.nn".

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

1 2 3

Sommario

Pagina 1

Page 1The W2 serial port is configured for 9600 baud, 8 databits, 1 stopbit, no handshake.Purpose PurposeString Length 3 chars. display of Forward Pow

Pagina 2

Page 2The W2 serial port is configured for 9600 baud, 8 databits, 1 stopbit, no handshake.Purpose PurposeString Length String Length 3 chars.Response

Pagina 3 - W2 Sensor Calibration

Page 3Byte Property1 "I" or "i" (echoes back what you sent).2 Active Sensor (1 or 2) matching the "S1/S2" LED lit.3 Rang

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