Am Synchronous Tuning; General Coverage Reception - Yaesu FT-1000MP Operating Manual

Operation
Alternately, you can have the segments ex-
pand outwardly as you tune either direction from
the nearest displayed frequency. This lets you
view tuning increments smaller than 10 Hz (the
maximum display resolution).
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Expanded Tuning Scale
The rate and distance of segment displace-
ment in either mode are proportional to the se-
lected tuning steps size and if the FAST button is
engaged. The tuning meter mode is selected by
menu selection 3-2.
AM Synchronous Tuning
Audio distortion of AM stations due to carrier
fading is common. Synchronous tuning reduces
this phenomenon by receiving the station in LSB
while reinjecting an unfading carrier. The benefit
of this technique is that the re-injected carrier is
phase-locked to carrier of the original station,
reducing the effects of fading and improving sig-
nal fidelity over that of conventional AM detection.
To activate AM synchronous detection, press
the AM button twice (so the green LED inside the
button blinks). The tuning meter format changes
to that below. Slowly tune across the signal until
the lone center segment appears (see below).
AM Synchronous Tuning
Bm VVVVVVVVVVVVVVVYVVVVY <d@
rm TOD OU ODO V ag gu RU OUOL
Carrier Unlocked
Carrier Locked
General Coverage Reception
You may have already noticed that if you tune
outside one of the amateur bands (actually, out-
side of the 500-kHz segment that includes each
band), G30 appears in a box at the left side of the
display. On such frequencies, the transmitter and
antenna tuner are disabled. If you try to transmit,
will blink.
Also, such frequencies are ignored by the band
selection keys (including the alternate sub re-
ceiver feature): so if you tune a VFO to a fre-
quency outside of a ham band, you will have to
store it in a memory (as described on page 47) if
you want to be able to recall it quickly later. Oth-
erwise, aS soon as you press a band key, the
general coverage frequency will be lost as the
VFO reverts to the (ham-band) frequency it was
on when the band was last changed.
Once you become familiar with the memories,
you will find this really doesn't present a problem,
as each memory can be tuned just like a VFO,
and stored into another channel without having to
go through a VFO.
Aside from the above, general coverage re-
ception provides all of the features available on
ham frequencies, including dual channel recep-
tion, digital modes, and diversity reception, de-
scribed on the following pages. A wealth of
interesting broadcasts can be found outside the
amateur bands, including:
International Shortwave Bands (see table)
Maritime & Aeronautical Communications
News Services & Diplomatic/Embassy Traffic
Military Communications
Popular Shortwave Broadcast Bands
Meter" Frequency | M Icy
Band | Range (MHz) | Band | Range (MHz)
LW .150~.285 I 31 ke 9.35~9.90
MW 520~1.625 25 11.55~12.05
120 2.30~2.50 22 E 13.60~13.90
90 3.20~3.40 Aah 19 15.10~15.70
75 3.90~4.00 L 16 17.55~17.90
60 4.75~5.20 i 18.90~19.30
49 5.85~6.20 13 21.45~21.85
41 7.10~7.50 11 25.67~26.10
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