Kenwood TS-990S Operation Manual - Page 110

5 ASSISTING YOUR SMOOTH QSO ADJUSTING THE DECODE THRESHOLD LEVEL The threshold value for the signal strength to activate decoding can be adjusted as follows. Raising the threshold level may reduce erroneous detection due to noise. 1 Press [THLD] (F6) in the CW communication screen to switch to the threshold level configuration mode. If [THLD] (F6) is unavailable in the key guide, press [MORE] (F1) to alternate the key guide display. 2 Press [-] (F4) / [+] (F5) or rotate the MULTI/CH control to select a threshold level. The setting range is "1" to "30". The default is "10". • Adjust the threshold value in the ascending order according to the receiving status of noise, for example. Start from a small value between the range of 1 to 30 and configure the threshold value to a point where reception is good. • Pressing and holding [(RESET)] (F2) resets the threshold level to the default setting. 3 Press [ ] (F1) to exit. DECODE FILTER A decode filter (narrow-band filter used exclusively for decoding) can be used when there is significant interference or noise while decoding the Morse code. 1 Press [DEC.FIL] (F5) in the CW communication screen. Pressing [DEC.FIL] (F5) each time switches the decode filter mode (Off/Normal/Narrow). • The selected mode is displayed for about 2 seconds. If [DEC.FIL] (F5) is unavailable in the key guide, press [MORE] (F1) to alternate the key guide display. When Quick Mode is OFF: The characters entered using the USB keyboard appear in the character string buffer. To start encoding, press [Enter] on the USB keyboard or the [START] (F4) key. • Sending a character string using the USB keyboard while the update of TX/RX details display is paused cancels the paused state. • The maximum number of characters that can be entered in the character string buffer is 4300 characters. • To send a consecutive code (code abbreviation), input the characters after inputting "~" (tilde). The characters are encoded as a consecutive code until a space is inserted. • For example, when "~ HH" and "~ OSO" are input, they become the code abbreviations for correction code and emergency communication respectively. • To start encoding from a consecutive code while quick mode is ON, input the first character of the consecutive code within the time interval equivalent to 7 dots (space between words) after inputting "~" (tilde). ENCODING CHARACTER STRINGS USING THE CW MESSAGE MEMORY Fixed phrases can be registered in the CW message memory for use during transmission. • Use the CW message memory when transmitting a fixed phrase. Otherwise, the USB keyboard can also be used to input the character string. 1 Press [CH1] (F2) to [CH4] (F5) or [CH5] (F2) to [CH8] (F5) in the CW communication screen. Press [NEXT] (F7) to switch between [CH1] (F2) to [CH4] (F5) and [CH5] (F2) to [CH8] (F5). The phrase registered in the corresponding message channel is displayed in the character string buffer and encoding starts immediately. If [CH1] (F2) to [CH4] (F5) or [CH5] (F2) to [CH8] (F5) are not displayed in the key guide, press [MORE] (F1) to alternate the key guide display. TRANSMITTING CHARACTER STRINGS VIA USB KEYBOARD OPERATION Text input by the USB keyboard can be transmitted in Morse code. 1 Connect the USB keyboard (commercially available) to this transceiver. 2 Press [QUICK] (F4) in the CW communication screen. Press [QUICK] (F4) each time toggles the quick mode between ON and OFF. • > appears when the quick mode is ON. If [QUICK] (F4) is unavailable in the key guide, press [MORE] (F1) to alternate the key guide display. 3 Enter a character string using the USB keyboard. When Quick Mode is ON: The characters entered using the USB keyboard appear in the character string buffer and encoding starts immediately. • If a character string already exists in the character string buffer, encoding starts after the fixed phrase is added to the end of the character string. • If encoding of a character string is already in progress, the fixed phrase is added to the end of the character string and encoding will continue. • A space is inserted before the fixed phrase when it is added to the end of an existing character string. • Message CH supports only messages registered via text input. (Even when "Paddle" is selected for registering messages in the menu, the message CH information registered via text input using the USB keyboard is displayed on the CW communication screen.) • If the message displayed in the message list is too long to fit into the display range, this will be indicated by a "..." display to the right of the truncated message. 5-30 Index Contents