Chapter 6 Other Useful Features; Controls; Frequency Step Change; Amateur Band Switching - Kenwood TS-50S Instruction Manual

6 OTHER USEFUL FEATURES
CONTROLS
FREQUENCY STEP CHANGE
A Tuning control
The frequency step automatically varies depending
on how fast the tuning control is turned. As the
control is turned more quickly, the frequency step
increases through the range of 5 Hz to 200 Hz. In
the FM mode, the range is from 50 Hz to 2 kHz.
B MHz button
Press this button to change the frequency in 1 MHz
steps using the UP or DOWN button. The
frequency step setting can be changed to 500 kHz
from 1 MHz. Refer to Menu Set-up for Menu B, No.
62 on page 47. 1000 kHz is the default.
AMATEUR BAND SWITCHING
When the MHz indicator is off, you can switch
between consecutive amateur bands using the UP and
DOWN buttons. The transceiver switches to the next
band in sequence as shown below each time one of
the buttons is pressed.
UP DOWN
Button
/14
MHz
10.1 MHz
~
I
18.1 MHz
7.0 MHz \
r
21 MHz
3.5 MHz
J
\ 24.9 MHz
1.8~
/
29 MHz 28 MHz
--
41
RIT OPERATION
When the frequency of your contact shifts, you can
vary your receive frequency within ±1.1 kHz, without
changing your transmit frequency. Use this procedure:
1 Press the RIT button.
The RIT indicator and the shift frequency value will
appear on the display right.
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2 Adjust the RIT control to correct your receive
frequency.
As the control is adjusted, the new frequency shift
updates both the RIT shift display and the
transceiver frequency display in 100 Hz steps.
Although 100 Hz steps are displayed, the control
actually shifts the receiver in 10 Hz steps.
3 To switch off the RIT, press the RIT button.
The combination of ±1.1 kHz and 10 Hz steps
have been factory set, and may be changed to a
combination of
±
2.2 kHz and 20 Hz steps. Refer
to Menu Set-up (Menu B, No. 63) on page 47.
It's a good habit to turn off RIT after a contact is
finished. This returns the receive frequency to the
transmit frequency. It ensures you don't listen by
mistake on a different frequency from your transmit
frequency on the next contact. When in the Memory
Channel mode, RIT only functions with a memory
channel containing stored data. RIT does not function
with an empty memory channel.
If extremely precise transmit and receive frequency
readout is required, the RIT display can display the 10
and 1 Hz digits of your frequency. Use Menu B, No.
67 through 70 to assign Special Function No. 85 to
one of the microphone PF keys. Once assigned,
pressing this key causes the 10 and 1 Hz digits for the
transceiver frequency to appear on the display right
until the PF key is released. This display has priority
over the RIT display but there is no other effect on
RIT. Refer to Menu Set-up on page 47 and SpeCial
Functions on page 50.
Although the minimum step size is 5 Hz, exact
frequencies to the nearest Hz are tunable by taking
advantage of fuzzy logic (refer to "Tuning control" on
page
16).
If your desired frequency is not a multiple of
the current 5 Hz steps, turn the tuning control slightly
but quickly about the desired frequency. Fuzzy logic
temporarily alters the step size due to the rapid tuning
action. Now slowly tune the desired frequency. One or
two attempts may be necessary to select the correct
multiple. You can select any frequency to the
nearest Hz by using this technique.
Note:
When tuning
very
slowly,
a
counting error of
± 1
step
may occasionally be observed. This is not a malfunction.