NOTE:
This command provides information that could be used by a host application to
turn on an "ADC overflow" or "COR" indication. Internally, it is used as input to the K4's
automatic front-end gain reduction algorithm. (To enable this automatic attenuation, menu
entry "RX Auto Atten" must be set to On; see Menu Commands.)
PA$
(Preamp)
SET/RESP format:
PA$nm; where n is as shown below, and m is 0 (off) or 1 (on).
n = 0 (off)
n = 1 (10 dB regular preamp)
n = 2 (160-15 m: 18 dB regular preamp; 12-6 m: 20 dB LNA)
n = 3 (12-6 m only: 10 dB regular 20 dB LNA)
TOGGLE format:
PA$/; turns the preamp on (at most recent setting) if it was off and
vice-versa.
PC
(Power Control)
SET/RESP format:
PCnnnr; where nnn is power output and r is the power range:
L = low power (QRP, 0.1-10.0 W)
H = high power (QRO, 1-110 W)
X = milliwatt range (for XVTRs, 0.1-10.0 mW).
NOTE:
If <r> is omitted, ‘L’ range is assumed for both SET and get response (TBD).
Also see PP command (per-band power control, barefoot or with ext. amp).
PK
(Port Keying Setup: PTT, KEY, FSK)
SET/RSP format:
PKnpf;
GET format:
PKnp;
where:
n = serial port number (1=USB1, 2=USB2, 3=DE9)
p = port pin type (D=DTR, R=RTS)
f = function (X=OFF, C=CW, P=PTT, F=FSK [DTR only])
Example: PK3DF configures DE9-DTR as a source for FSK input.
NOTE1:
DTR and RTS signalling is "wire-ORed." This means that PTT and KEY can be
obtained from multiple DTR and/or RTS lines simultaneously. Similarly, FSK data can be
obtained by multiple DTR sources simultaneously.
NOTE2:
FSK can always be applied at ACC-FSK IN. Similarly, PTT can always be applied
