CVS-702D
Chapter 2 Basic operation
0093107022-02
2-5
Setting up of frequency:
1.
Relation between a transceiver and display screen
For CVS-702D, there are two types of transceiver for high frequency and low frequency,
and each transceiver has two channels of channel 1 and channel 2.
High frequency 1 is the channel 1 for high frequency.
High frequency 2 is the channel 2 for high frequency.
Low frequency 1 is the channel 1 for low frequency.
Low frequency 2 is the channel 2 for low frequency.
2.
Limitation in setting of high and low frequencies:
Please connect the cable for low frequency of the transducer to the low frequency
terminal and the cable for high frequency of the transducer to the high frequency terminal,
and set the designated frequency of the transducer.
3.
Simultaneous transmission and reception*
1
and alternate transmission and reception*
2
Two transceivers for high frequency and low frequency transmit and receive
simultaneously, and the channel 1 and channel 2 of each transceiver operate in alternate
transmission and reception.
4.
When the same frequency is set for high frequencies 1 and 2 or low frequencies 1 and 2,
alternate transmission and reception do not operate. Transmission and reception are
performed by only channel 1 and the image is displayed using the channel 1 data by the
channel 2 gain setting.
5.
The conditions when alternate transmission and reception can operate even when the
same frequency is set for channels 1 and 2:
If pulse width is different
If frequency bandwidth is different
If range is different.
If shift is different.
If the types of display zoom is different.
*1 Simultaneous transmission and reception: Each transmitter and receiver for high frequency and low frequency
operates simultaneously.
*2 Alternate transmission and reception: Channels 1 and 2 of high frequency and channels 1 and 2 of low frequency
transmit and receive alternately by each channel. The image scroll speed will drop
to a half of that of simultaneous transmission and reception
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