Yaesu FT-411 MKII Operating Manual

Also see for FT-411 MKII: Operating manual Operating manual Technical supplement Technical supplement

Contents

FT-411 MKII OPERATING MANUAL24The basic features of this transceiver are not complicated, but it is still possible to get lost,at least until you have had the chance to learn all of the functions of the keypad and display.If the display shows nothing at all, check the power switch (VOL control), and if necessary,remove the battery pack and check that the contacts are clean. If all appears to be physi-cally in order, recharge or replace the batteries.The display includes enough symbols and function indicators to let you know what isgoing on as long as power is applied, so it is well worthwhile to study the display diagramon page 6 carefully. For example, if the frequency display changes unexpectedly when youtransmit (or if ‘Err’ appears), check for a small ‘+’ or ‘–’ at the upper righthand corner.Also, if only a few seemingly non-sensical digits appear, try switching the set off and backon to clear any special display modes, such as tone squelch, repeater offset, channel step orDTMF memory setting.Most illegal commands will cause two beeps to sound. If pressing a key appears to donothing, first check for a small ‘L’ in reverse type at the lower left, which indicates if thekeypad is locked. If so, press [F/M] and then [LOCK(6)] to unlock the keys. If the ‘L’ is notthere, press [F/M] or [CALL/DTMF] on the top panel, which will terminate many partiallyentered commands. If you still cannot enter data, check the BUSY/TX indicator to see if itis red, indicating that the transceiver is transmitting. Releasing the PTT switch shouldreturn the set to receive. If still nothing happens, switch the transceiver off, and then backon.If you find the stored data is definitely non-sensical or far from what you want, try theSystem Reset procedure described on the previous page.To avoid confusion resulting from inadvertent key presses, set the keypad lock on (press[F/M] and [LOCK(6)]) if you set the transceiver down while it is on, and then remember toset the lock back off when you wish to enter data.In Case of Problem