Br (serial i/o speed, get and set), Byp (bypass, get and set), C (select capacitors, get and set) – Elecraft KAT500 Serial Command Reference User Manual
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BR (Serial I/O Speed, GET and SET)
GET format: BR;
SET/RESPONSE format:
BR0; for 4800 bit/s,
BR1; for 9600 bit/s,
BR2; for 19200 bit/s or
BR3; for 38400 bit/s. Firmware load automatically chooses 38400 bit/s.
Serial I/O speed significantly affects the time required for configuration save and restore. 38400 bit/s is
recommended unless you have a specific reason to use a lower speed.
BYP (Bypass, GET and SET)
GET format: BYP;
SET/RESPONSE format: BYPN; (not bypassed) or BYPB; (bypassed).
Gets or sets the bypass relays K20 and K21. These relays are in the bypassed position when not
energized.
It may take a few tens of milliseconds after issuing a BYPx; setter before relays are changed. Relays are
not changed until the transmit power is below the AKIP threshold.
Firmware releases inductor, capacitor, and SIDE relays while bypassed.
C (Select capacitors, GET and SET)
GET format: C;
SET/RESPONSE format Chh; where hh are a pair of hexadecimal digits indicating the selected capacitors.
for a description of this notation.
Examples:
C00; selects no capacitors.
CFF; selects all capacitors.
C80; selects only the largest capacitor by energizing K5.
CC1; selects the largest, second largest, and smallest capacitors by energizing K5, K4, and K1.
Hex Digit
Relay
Capacitance (pF)
80
K5
1360
40
K4
680