Yaesu FT-857 Operation Manual

Also see for FT-857 series: Manual Technical supplement Brochure & specs Operating manual Technical supplement

Contents

Yaesu FT-857 Operation Manual Manual pdf 54 page image

52 FT-857 Operating ManualCW TRANSMISSIONOperation using Straight Key/External Keying DeviceWhen using a straight key, an external electronic keyer, or a computer-generated keyingdevice, please follow the instructions in this section.1. Insert your key’s plug into the rear-panel KEY jack.2. Press the [MODE(t)] or [MODE(u)] key, as needed, to selectone of the CW modes (CW/CWR).The “CW” mode utilizes USB-side carrier injection, while theCWR (Reverse) mode utilizes LSB-side injection.3. Press the [FUNC] key momentarily, then rotate the SELECTknob to select Multi-Function Row “j” [SPOT, BK, KYR]; pressthe [B](BK) key to engage the “break-in” system; the “u” iconwill appear at the left side of the “BK” notation.4. When you close the key (or activate your computer-generated keying interface by what-ever means), the transmitter will automatically be engaged. When you have finishedsending, the receiver will return, after a brief delay (see next section).5. The CW “hang time” (the delay after the last character is sent, until the transceiverswitches to the receive mode) can be adjusted using the Menu Mode. To adjust the CWhang time:ü Press and hold in the [FUNC] key for one second to enter the Menu mode.ü Rotate the SELECT knob to Menu Mode No-024 [CW DELAY].ü Rotate the DIAL to select a longer or shorter delay time (default: 250 ms). If thedelay selection is set to “FULL,” the transceiver will operate in the full break-in mode(allowing you to hear between the characters that are being sent).ü When you have set the desired delay, press and hold in the [FUNC] key for onesecond to save the new setting and exit to normal operation.6. To practice your CW sending (without transmitting), press the [B](BK) key to make the“u” icon disappear. Now, pressing the key will cause the CW sidetone to be heard, butyour radio will not be transmitting a signal on the air.7. You can adjust the CW sidetone volume level via Menu Mode No-029 [CW SIDE TONE].To adjust the CW sidetone volume level:ü While still in Multi Function Row “j” [SPOT, BK, KYR], press and hold in the [B](BK)key for one second. This is a “hot key” feature which will instantly recall MenuMode No-029 [CW SIDE TONE].ü Rotate the DIAL to select a new level; on the arbitrary scale of “0” ~ “100,” thedefault value is “50.”ü When done, press and hold in the [FUNC] key for one second to save the new settingand exit to normal operation.8. You also can adjust the CW sidetone pitch using Menu Mode No-027 [CW PITCH].TRANSMITTER OPERATIONKEY GNDGNDKEY