Hilberling PT-8000, Руководство по эксплуатации

Страница: 52 / 82

C–42
Part C Installation And Operation
11.7 SPLIT Operation
There are various ways to split between transmit- and receive frequencies.
Keep in mind that the PT-8000 represents a transmitter with two identical
receivers. However, to link a receiver with the transmitter as a transceiver is
only possible with the MAIN-RX. Hence only the MAIN-RX VFOs can
determine the transmit frequency.
Three ways for SPLIT operation are available:
•
Operating with MAIN-RX using SPLIT VFO
function as described in 11.6.
This is the “regular” method which gives you
quick access to the desired SPLIT.
This way the resources of the PT-8000 are used
economical.
•
Tuning MAIN-RX on the desired transmit
frequency and using SUB-RX for receive.
This way you can listen to the transmit and to the
receive frequency simultaneously which can give
some advantages in difficult (crowded)
environments. However all resources of the PT-
8000 are used. The SUB-RX can not be tasked
with other valuable operations like band
monitoring, transverter operation etc.
•
Using MAIN-RX and detuning RX or TX through
RIT and XIT.
The least elegant method. SPLIT is limited to
10kHz.
SPLIT Operation using VFO SPLIT function
Tune with VFO A to the station you would like to call. Select VFO B and tune
to the desired transmit frequency. Make sure the same mode is selected.
Reselect VFO A. Press SPLIT. Now VFO A is for receive and VFO B is for
transmit.
Of course you can tune with VFO B to receive and tune VFO A to the
(split)transmit frequency. Selecting SPLIT will always chose the alternate VFO
for transmit. Pressing VFO A/B will alternate RX and TX frequencies.
Pressing SPLIT again will terminate SPLIT operation.
The actual operating frequency in RX/TX will always be displayed as the
selected VFO frequency; i.e. during SPLIT the display will change with T/R
switching.
SPLIT Operation using MAIN-RX and SUB-RX
Tune with SUB-RX (either VFO) to the station you would like to call. Tune with
MAIN-RX to the desired transmit frequency. You can monitor the stations
calling and the station to be called simultaneously. This might give
advantages in crowded environments. Use the volume control for MAIN and
SUB to adjust convenient monitoring.
SPLIT Operation using RIT/XIT
Tune with MAIN-RX to the frequency of the station you want to call. Engage
XIT and select an offset that you desire to call the station.