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Elecraft K3 Owner's Manual User Manual

Page 54

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54

AGC DCY

NOR

AGC decay characteristic; applies to both fast and slow AGC.

NOR

selects

traditional linear decay. The

SOF T

setting can reduce IMD caused by traditional

AGC, and is especially useful in “pileup” conditions, in some cases making it
unnecessary to turn AGC off. Also see AGC HLD, below, which can reduce
AGC IMD even further.

AGC HLD

0.00

SLOW AGC “hold” time. Specifies the number of seconds that the SLOW AGC
level is held after the signal drops. This can be used to reduce IMD caused by
traditional AGC, and is especially useful in “pileup” conditions, in some cases
making it unnecessary to turn AGC off. Also see AGC DCY, above.

AGC PLS [T]

NOR

(Advanced.)

NOR

enables AGC noise pulse rejection.

AGC SLP [T]

12

(Advanced.) Higher values result in ‘flatter’ AGC (making signals at all
amplitudes closer in AF output level).

AGC THR [T]

5

(Advanced.) Sets AGC onset point; a higher number moves the onset up.

AGC-F [T]

120

(Advanced.) Sets fast AGC decay rate; a higher number means faster decay.

AGC-S [T]

20

(Advanced.) Sets slow AGC decay rate; a higher number means faster decay.

AUTOINF [T]

NOR

(Advanced.) If set to

AUT O 1

, the K3 will send band data on its RS232 port for

use with devices such as the SteppIR™ antenna on every band change. (Note:
This setting may not be compatible with PC software applications that use the
“AI” remote control command.)

BAT MIN

11.0

Low-battery warning threshold;

11. 0

recommended. (This refers to a battery

used as the K3’s DC power supply, not to the 3-V backup battery for the real-time
clock.) If the voltage drops below this level, the operator will be alerted with a

BAT LOW

message. The menu parameter flashes if this occurs within the menu,

so the level can be easily tested.

BND MAP

{band} In

Allows you to remove one or more bands from the

B A N D

rotation. Use

B A N D

up/down to select bands, then set them to

In

or

Out

using VFO A. (Works with

transverter bands, too.) You can still get to mapped-out bands using memory
recall, direct frequency entry, or computer-control commands.

CW IAMB

A

Iambic keying mode (

A

or

B

). Both modes produce self-completing dots and

dashes. Mode B is more efficient for operators who use “squeeze” keying
(pressing both paddles at once), because an extra dot or dash is inserted on
squeeze release. Mode A lacks this feature, which may be more appropriate for
those who only press one paddle at a time (often called “slap” keying).

CW PADL

TIP=DOT

Specifies whether left keyer paddle (“tip” contact on the plug) is

DOT

or

DAS H

.

CW QRQ

OFF

(Advanced) Set to

ON

to provide CW keying speeds of up to 100 WPM and

much faster break-in at all speeds. The internal keyer range becomes 8-100 WPM
in this case. Caution: In QRQ mode, the delay from key down to first RF out
may be as little as 4 to 5 milliseconds. This may be too fast for some external
amplifiers. You may be able to slightly increase the CONFIG:TX DLY
setting to compensate, but you should then listen to your signal on another
receiver to ensure that your CW keying doesn’t exhibit excessive jitter (per-
element variation). This is more likely to occur with external keyers.
Note: If you use SPLIT, RIT, XIT, or cross-mode, QRQ mode will be temporarily
turned off. Filter passband SHIFT/LOCUT/HICUT cannot be used when CW
QRQ is in effect.