6 COMMUNICATING

Storing CW Messages

The two modes available for storing messages are Character mode and Real Time mode. Each message may be as long as you want provided that the total of all four messages including spaces does not exceed about 220 characters. You must use the internal keyer to use the message storage function. If you happen to turn OFF the power while storing a message, the last letters input may be deleted. You cannot store messages if you are operating split mode (transmit mode different than receive mode).

Using Character mode (default):

This mode uses message memory most efficiently. Each Morse character uses one byte of memory. When you play back your recorded messages, they will be sent with precise intercharacter and interword spacing.

1 Press [CH 1] or [CH 2] or [CH 3] or [CH 4] for approximately two seconds until you hear a tone.

¥The keyer will send the letter ÒCÓ. This stands for Character mode.

¥If the keyer sends ÒRÓ (for Real Time), you must switch to Character mode by using the Function mode {page 36}.

2Send the first word of your message then pause.

¥The keyer will send the letter ÒIÓ indicating it has accepted your word.

3Repeat Step 2 pausing to hear the ÒIÓ before sending the next word until all words of your message are entered.

¥If you make a sending mistake, send seven or more dits to signal an error, then wait for the keyer to respond with the last correct word. You can then send the next word that you want in the message. Each time that you send the 7-dit error signal, you erase one more word.

4Press the same button as pressed in Step 1.

Using Real Time mode:

Real Time mode captures exactly what you send without altering your spacing. This mode cannot use Embedded Functions {page 37}. Also, you cannot correct words by using the 7-dit error signal as in Character mode.

Before beginning, switch to Real Time mode by using the Function mode {page 36}.

1Press [CH 1] or [CH 2] or [CH 3] or [CH 4] for approximately two seconds until you hear a tone.

¥The keyer will send the letter ÒRÓ. This stands for Real Time mode.

2Send your entire message.

3Press the same button as pressed in Step 1.

¥Message recording begins at the moment the first character is sent, and continues until this step is completed. Any pause between the last character and this step is recorded as part of the message.

CW Message Playback

Messages may be transmitted using the VOX function or manual TX/RX switching. The procedure below uses the VOX function. Simply tap the paddle at any time to stop a message while it is playing back, or press any two of [CH 1], [CH 2], [CH 3], or [CH 4] to stop the message without transmitting an extra character. Resuming playback after such an interruption replays the message from the beginning.

Switching OFF the power while playing back a message could delete the message. You cannot play back messages if you are operating split mode (transmit mode different than receive mode).

To check a message without transmitting:

1 Press [VOX] to switch OFF the VOX function.

2 Press the memory channel button ([CH 1] or [CH 2] or [CH 3] or [CH 4]) that contains the message that you want to check.

¥The message plays.

¥To play back up to 8 messages, press the corresponding memory channel buttons in sequence during playback.

To transmit a message:

1Press [VOX] to switch ON the VOX function.

2Press the memory channel button ([CH 1] or [CH 2] or [CH 3] or [CH 4]) that contains the message that you want to transmit.

¥The message is transmitted.

¥To transmit up to 8 messages, press the corresponding memory channel buttons in sequence during playback.

The ÒQÓ Function command {page 36} allows you to queue several messages to form a longer message.

Example:

¥ÒQÓ Function status: ON

¥Channel 1 contents: ÒCQÓ

¥Channel 2 contents: Òde DFØTKÓ

In this example, pressing the button sequence [CH 1], [CH 1], [CH 1], [CH 2] would send ÒCQ CQ CQ de DFØTKÓ.

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Kenwood TS-870S instruction manual Storing CW Messages, CW Message Playback

TS-870S specifications

The Kenwood TS-870S is a distinguished transceiver that stands out in the world of amateur radio, particularly for enthusiasts who seek a blend of advanced technology and user-friendly features. Introduced in the early 1990s, this HF transceiver quickly gained a reputation for its exceptional performance, versatility, and reliability, making it a favorite among operators worldwide.

One of the most noteworthy features of the TS-870S is its direct-sampling technology, which allows for superior signal fidelity and processing. This technology enables the transceiver to operate across a range of 160 meters to 10 meters, catering to both casual and serious operators. Its high-performance 16-bit digital signal processing (DSP) facilitates effective noise reduction and filtering capabilities, enhancing the overall clarity during transmission and reception.

In terms of power, the TS-870S boasts an output of 100 watts, providing ample power for various communication needs. The transceiver is equipped with an automatic antenna tuner, which simplifies the task of matching the antenna to the operating frequency, ensuring optimal performance without the hassle of manual adjustments.

Another significant aspect of the Kenwood TS-870S is its user interface, featuring a large, easy-to-read display, and a logically arranged control layout. This makes it accessible for both novice and experienced operators. The built-in memories allow for quick storage and access to favorite frequencies and settings, enhancing operational efficiency.

The Kenwood TS-870S also includes various advanced features such as an optional 2.4 kHz and 6 kHz roofing filter which provides improved performance in crowded band conditions. The receiver's dual VFOs (Variable Frequency Oscillators) enable simultaneous monitoring of two frequencies, which is particularly useful for operators who need to keep track of multiple signals or engage in cross-band communication.

Apart from its technical specifications, the TS-870S is constructed with durability in mind, ensuring that it can withstand the rigors of frequent use. It supports various operating modes, including SSB, CW, AM, and FM, making it a versatile choice for diverse amateur radio activities.

In conclusion, the Kenwood TS-870S combines advanced technology with user-friendly characteristics, offering amateur radio operators an exceptional tool for communication. With its innovative features, robust performance, and flexibility, it continues to be a respected choice among radio enthusiasts, solidifying its legacy in the realm of amateur radio.