SWR indication
During a tuning cycle, the LEDs indicate the present SWR. It will vary considerably as the Z-
11Pro seeks a match. You have to watch closely though, as it happens fast!
"Sleep" mode
When any tuning cycle ends, the tuner automatically enters a “deep sleep” state in which it draws
only 25
micro
amps. The tuner will automatically “wake up” the next time you start a tuning
cycle, a button is pressed or when an automatic tuning cycle is required, if this option is selected.
Advanced Operation
Manual adjustments
In rare cases, it may be desirable to manually adjust the match after a tuning cycle. This will
happen most often with antennas that are far from resonance at the operating frequency. The
C
Up
,
C Dn, L Up
and
L Dn
buttons increase and decrease capacitance and inductance,
respectively. To change these values, press repeatedly or hold any of these buttons. Then, key
your transmitter to observe the achieved SWR on the SWR meter.
You can also manually change C and L as you transmit, observing the SWR on the LEDs. When
you reach the limits of these adjustments, the LEDs blink: the inner LEDs indicate the high limit,
outer LEDs low.
Frankly, you won't use these manual adjustments much. Your Z-11Pro is very, very good at
finding a match. These functions are included only to provide you with the maximum utility and
flexibility.
After manually adjusting the match, you can store the tuning parameters for the present
frequency; press and release
Func
, then press and release
Tune
. The parameters are stored for
later recall, replacing any the oldest of four saved parameters for that frequency.
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