Kenwood TS-990S - Manual (Page 254)

16 USEFUL FUNCTIONS
16-22
Index Contents
CONFIGURING THE REF I/O CONNECTOR
The behavior of the REF I/O (10 MHz) connector on
the rear panel can be selected from "Off", "Input", and
"Output".
• Impedance : 50Ω
The frequency accuracy can be increased by entering the
sufficiently accurate reference signal to the transceiver
and by using the signal as the reference frequency.
• Input Level : 0dBm ± 10dB
Also, sourcing the reference frequency of the transceiver
via the REF I/O (10 MHz) connector enables to be used
as the reference frequency of other transceiver.
• Output Level : 0dBm
[F1] [F7]
F[ADV.] [MENU]
7 Press [ADV.] (F) from the Menu screen to open the
Advanced Menu screen.
8 Access Menu 4, "REF I/O Connector Configuration".
9 Press [SELECT] (F4) to allow editing of the parameter
box.
10 Press [-] (F4) or [+] (F5) to select the behavior of the
REF I/O (10 MHz) connector from "Off", "Output", or
"Input".
The default is "Off".
11 Press [ ] (F1).
12 Press [MENU] to exit.
CONFIGURING FOR THE ROOOFING FILTER
ADDED BY YOU (MAIN BAND ONLY)
If you add a roofing filter, you can configure the passband
width and attenuation of the roofing filter according to the
specifications of the roofing filter.
[F1] [F7]
[MENU] F[ADV]
CONFIGURING THE PASSBAND WIDTH
You can configure the passband width according to the
specifications of the roofing filter that you have added.
1 Press [ADV.] (F) from the Menu screen to open the
Advanced Menu screen.
2 Access Advanced Menu 06, "Bandwidth (Additional
Roofing Filter)".
3 Press [SELECT] (F4) to allow editing of the parameter
box.
4 Press [-] (F4) or [+] (F5), or rotate the MULTI/CH
control to select the passband width.
You can select "Off" or "300 [Hz]" to "3500 [Hz]" for the
passband width. The default is "Off". If you do not add a
roofing filter, do not change the parameter from the default
("Off").
5 Press [ ] (F1).
6 Press [MENU] to exit.
Note:
◆ As of February 2013, no optional roofing filters will be available
from KENWOOD.
◆ If you select "Auto" for the roofing filter on the RX Filter screen, a
roofing filter with a passband width wider than that of the DSP filter
is selected. If there are two or more roofing filters, including the
one that you add satisfying the conditions, the roofing filter with the
narrowest passband width is selected.
◆ If anything other than "Off" is configured for the passband width,
you can select "Add." for the line for "Roof" in the RX Filter screen.