Yupiteru MVT-7100 Operating Instructions Manual page 8

NT ERING FREQUENCIES
) enter a frequency in Manual (or VFO) is a simple matter. II can be a good idea to first ensure that
e correct mode and desired increment step are selected but these can be changed as required after
1y frequency entry. Simply key in the frequency required using the numerical keypad followed by
NT. As you press each number it will appear on the screen and flash. When you press ENT it will
ld any trailing zeros and stop flashing.
XAMPLE
J
tune the MVT-7 100 to 81.3MHz, WFM mode
(as~11ming
the set is currently limed to l44.00MHz,
'FM. 50KHz steps)
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1 Press STEP
2. Rotate the tuning knob until 1OOKHz is shown
3. Press ENT
4. Press 8 1 . 3
5. Press ENTER
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WFM
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[STEP]
MODE
STEP
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1fiiHz
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WFM
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STEP
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M·SCAN ATI SKI P
If the incorrect mode has been chosen you can change to the correct mode by pressing FUNC
.f'MODE then using the rotary knob followed by ENT when correct mode is shown.
:XAMPLE
o
tune the MVT-7 100 to 1 J8.025MHz, AM mode (assuming the set is tuned to 81.30Mhz. WFM.
OOKHzfol/owing the above example 100KHz steps)
1. Press FUNC
+
MODE
2. Rotate the tuning knob until AM is displayed
3. Press ENT
4. Press STEP
5. Rotate the tuning knob until 25KHz is shown
6. Press ENT
7. Press 1 1 8 . 0 2 5
8. Press ENT
{(the set was already in AM mode and 25KHz or 1 2.5KHz steps then procedures 1 to 6 need
not have been carried out
MVT-7100 Operating Instructions 1.0
©
Javiation January 1993.
Page 14
II
As a liflle exercise try the previous example but this lime enter 50KHz at step 5 and see what
happens when you press ENT at the end !
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NOTE:-
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118.025MHz is a 25KHz channel spacing and
if
you have 50KHz or lOOKHz
selected it will round itself to receive the nearest frequency because the larger
number (50 or 100) does not divide into the smaller. Likewise
if
you try and enter
a 12.5KHz spaced frequency (e.g. 455.6125MHz) when 25KHz or larger
increment steps are selected it will not be accepted. Within the United Kingdom
the VHF/UHF spectrum is mainly divided illlo 12.5KHz. 25KHz or 50KHz
channel spacing. selecting 12.5KHz will always allow you to enter the exact
frequency as they are all divisible by 12.5KHz. Just to add wood to the fire a
1 2.5KHz channel spaced frequency will not be accepted exactly
if
any of the
smaller increme/11 steps down to I KHz are chosen. With a little practice you will
soon get the hang of it !
ROTARY TUNING I MANUAL TUNING
If you wish to use either the rotary tuning dial or the direction keys you can tune up or down from
the displayed frequency in Manual mode. Each single turn of the dial or press of the key will increase
or decrease the frequency by the increment steps chosen. To change increment steps simply press the
STEP rotate the tuning knob to the desired steps and press ENT.
EXAMPLE:
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If
you manually tune to 7.051Mhz. USB and 50Hz steps.
each clockwise turn of the rotary knob or pressing the
"up" direction key will increase the frequency by 50Hz.
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MHz ' - - - - - - " - " ' ----'
Each anti-clockwise turn or pressing of the "down"
direction key will decrease the displayed frequency by
50Hz.
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MVT-7100 Operating Instructions 1.0
©
Javiation January 1993.
Page 15
II