Persist, Ppersist ON/ OFF, Reset, Resptime RES

Command Name	Short	Default	Parameter	Description

PERSIST	PE	128	0 ~ 255	Specifies a parameter to calculate probability for the
PERSIST	PE	128	0 ~ 255	PERSIST/SLOTTIME method.
				PERSIST/SLOTTIME method.

PPERSIST	PP	ON	ON/ OFF	Causes the TNC to use the PERSIST/SLOTTIME method
PPERSIST	PP	ON	ON/ OFF	when ON, or the DWAIT method when OFF.
				when ON, or the DWAIT method when OFF.

RESET	RESET	—	—	Restores the default status for all the commands.

RESPTIME	RES	5	0 ~ 250	Specifies the acknowledgment packet transmission delay.
RESPTIME	RES	5	0 ~ 250	The unit of the parameter is 100 milliseconds.
				The unit of the parameter is 100 milliseconds.

RESTART	RESTART	—	—	Causes the TNC to function as if it is switched OFF then ON.

				Specifies the number of transmission retries. If packets are
RETRY	RE	10	0 ~ 15	not correctly accepted while in connection, a connect request
				is sent again after the specified number of retries.

SENDPAC	SE	$0D	0 ~ $7F	Specifies a character which forces a packet to be sent.

				Specifies the period of random number generation intervals
SLOTTIME	SL	3	0 ~ 250	for the PERSIST/SLOTTIME method. The unit of the
				parameter is 10 milliseconds.

TRACE	TRAC	OFF	ON/ OFF	When ON, causes the TNC to display all received packets in
TRACE	TRAC	OFF	ON/ OFF	their entirety.
				their entirety.

TRIES	TRI	0	0 ~ 15	Specifies the number of transmission retries programmed in
TRIES	TRI	0	0 ~ 15	the retry counter.
				the retry counter.

TXDELAY	TX	50	0 ~ 120	Specifies the time delay between PTT ON and start of
TXDELAY	TX	50	0 ~ 120	transmission. The unit of the parameter is 10 milliseconds.
				transmission. The unit of the parameter is 10 milliseconds.

			Call1 (VIA	Specifies call signs to send a packet in Unprotocol mode.
UNPROTO	U	CQ	call2, call3, ...	Call1 is the call sign of the destination. Call2 to call9 are call
			call9)	signs of stations to be digipeated through.

XFLOW	X	ON	ON/ OFF	Causes the TNC to perform software flow control when ON, or
XFLOW	X	ON	ON/ OFF	hardware flow control when OFF.
				hardware flow control when OFF.

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TH-D7E, TH-D7A specifications

The Kenwood TH-D7A is a sophisticated handheld transceiver designed especially for amateur radio enthusiasts. It combines advanced features with user-friendly operation, making it a popular choice among both beginners and seasoned operators.

One of the standout features of the TH-D7A is its dual-band capability, allowing users to operate on both the 2-meter (144 MHz) and 70-centimeter (440 MHz) bands. This dual-band functionality gives operators increased flexibility and access to a wider range of communication channels. Additionally, the transceiver supports the simultaneous transmission and reception of two different frequencies, allowing for efficient monitoring of multiple communications.

The TH-D7A is equipped with an impressive 1,000 memory channels, which can be organized into 100 memory groups. This allows users to store a vast amount of frequencies and access them easily when needed. The transceiver also provides a wide frequency coverage, extending from 144 to 148 MHz and from 430 to 450 MHz in the VHF and UHF bands, respectively.

Another remarkable feature of the TH-D7A is its built-in Automatic Packet Reporting System (APRS) capabilities. This technology enables users to share real-time location data, send and receive messages, and provide status updates, making it an invaluable tool for outdoor activities and emergency communication.

In terms of construction, the TH-D7A features a durable and compact design, making it suitable for both portable and mobile use. The large, easy-to-read LCD display provides clear visibility in various lighting conditions. Additionally, the transceiver supports a variety of advanced voice modes, including FM, AM, and SSB (Single Side Band), offering a versatile communication experience.

The TH-D7A also incorporates a wide range of digital modes, enhancing its operational capabilities. With the included programming software, users can easily customize their settings, manage memory channels, and update firmware, ensuring the transceiver remains compatible with evolving technologies.

Power management is another highlight, as the TH-D7A provides adjustable output power levels, enabling users to conserve battery life when needed. Overall, the Kenwood TH-D7A is a feature-rich handheld transceiver that combines robust performance with innovative technology, making it a top choice for amateur radio operators seeking reliable communication in diverse environments. Its versatility, combined with its intuitive design, ensures it meets the needs of users across all experience levels.

Kenwood TH-D7A Persist, Ppersist ON/ OFF, Reset, Resptime RES, Restart, Retry, Sendpac, Slottime

Models: TH-D7E TH-D7A

Short

Parameter

PERSIST

PPERSIST

ON/ OFF

RESET

RESPTIME

RES

RESTART

RETRY

SENDPAC

SLOTTIME

TRACE

OFF

ON/ OFF

TRIES

TRI

TXDELAY

UNPROTO

XFLOW

ON/ OFF

TH-D7E, TH-D7A specifications