Kenwood TS-480 manual Useful if you want to go on to tune

Antenna	25	TX hold when internal AT	After completion of tuning, there is still
tuner		completes tuning	approximately 10W of output, so this is
			useful if you want to go on to tune the
			linear amp.
	26	In-line AT while receiving	The internal antenna tuner can also be
			used during RX. Depending on
			conditions, sensitivity can vary by
			enough to see a change in the
			S-meter. It can also reduce
			low-frequency interference.
	27	External AT control method	If you own an AT-300, you can connect
			it to the TS-480; however, operation is
			limited by the capabilities of the
			AT-300.
Linear amp	28	Linear amp control for HF	You can control the linear amp
		band	independently for the HF and 50MHz
			bands. And if the amp is not
	29	Linear amp control for
			compatible with full break-in, you can
		50MHz band	add in a delay for the TX attack.
Message	30	VGS-1 constant recording	With the VGS-1 Voice Guide and
playback			storage unit installed, you can engage
			constant record for the RX signal.
			Maximum playback time is 30
			seconds.
	31	Repeat playback of	This is not just for contest CQ
		voice/CW messages	machines; it can be used as a simple
			beacon.
	32	Interval time for #31	Interval time can be adjusted up to a
			maximum of 60 seconds.

31