background image

2.5.5  Gain Changes

When you get to this menu note that the gain changes will be made as you make them but if you do not wish to 
save the changes you have made, scroll to 

R

 and push the Menu/Execute switch and select 

NO

 in the 

SAVE SETTINGS?

 menu.

2.5.5.1  Upconverter Gain 

To set the upconverter gain,  first push the Menu/Execute switch to get to the gain setting:

Operate the Menu/Execute switch until you get to the menu item you want to change see Figure 2.4 for 
the sequence of menu options. 

The following display is for changing the upconverter input level. This is an important setting to 
optimize spurious and should be made as accurately as possible:

UP INLVL= -20

R

Pressing the Up/Down switch to change the level in 1 or 10 dB steps (depending on the character that is 
selected), and then push the Menu/Execute switch to get to the Gain setting:

UP G= +00

R

By  using  the horizontal rocker switch the  cursor  can  be moved left or right .
Pressing the Up/Down switch down will toggle the display digit selected until you have the desired gain. 

When  the  display  indicates the  value desired you can push the Menu/Execute switch to the next item 
OR you can scroll to “R”, push the Menu/Execute switch to get to:

SAVE SETTINGS?

Y N

Selecting Y will save the new settings. Selecting N will revert to the previous settings.
Pushing the Menu/Execute switch then takes you to the :

U  F=6850.000  G=+00

D  F=4600.000  G=+30

Figure 2.4 shows all the menu items and how to make changes.

2017-74  Manual, Rev. B

 

  Page 16

     

         10/27/10

Содержание 2017-74

Страница 1: ...y to Cross Technologies Inc but may be reproduced or duplicated without the prior permission of Cross Technologies Inc for purposes of operating the equipment When ordering parts from Cross Technologi...

Страница 2: ...omer Cross Technologies Inc s obligation under this warranty is limited to repairing or at Cross Technologies Inc s option replacing parts subassemblies or entire assemblies Cross Technologies Inc sha...

Страница 3: ...ration allows selection of frequency and gain Parameter selection and frequency and gain settings appear on the LCD display Connectors are BNC female for IF and the optional external reference input a...

Страница 4: ...d RS485 option Q Other RF Connectors Type N female see Table 2 2 for connector options IF Connectors BNC female see Table 2 2 for connector options 10 MHz Connectors BNC female 50 75 option E Alarm Re...

Страница 5: ...7 8 9 1 2 3 4 5 6 7 8 9 Female DB 9 PC Com Port Male DB 9 2015 16 17 M CPort M C Cable Diagram Cross Technologies Frequency Converters Connector Rear panel DB 9 female J10 Pinouts Pinouts RS 232C 422...

Страница 6: ...uency ccccccc option X 4 characters standard 7 characters Option X dd Tx gain 00 to 30 ee Rx gain 00 to 50 ff Tx input level 10 to 40 10 to 40 dBm M 0 Receiver synth alarm N 0 Transmitter synth alarm...

Страница 7: ...nsmitter Frequency aaC1xxxxxxx where xxxxxxx 7 characters Range 6700000 to 7000000 kHz Set Transmitter Input Level aaCIxx where xx 2 characters Range 10 to 40 10 to 40 dBm Set Receiver Frequency aaC2x...

Страница 8: ...ng Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits could have on over current protection and supply wiring Appropriat...

Страница 9: ...ch high by 16 inch deep chassis A switching 12 5 24 VDC power supply provides power for the assemblies The 2017 74 can be secured to a rack using the 4 holes on the front panel Figure 2 0 shows how th...

Страница 10: ...2 2 J10 AND MONITOR CONTROL J10 MONITOR AND CONTROL DB9 female connector see Table 2 1 DOWNCONVERTER J1 IF OUT J18 10 MHz REF OUTPUT option E 10 MHz reference output 3 dBm 3 dB 50 75 BNC female connec...

Страница 11: ...ndicates presence of DC power DS1 REMOTE LED Yellow LED indicates remote operation S2 VERT TOGGLE Vertical toggle switch that controls values in the Menu items when in program mode Does not function i...

Страница 12: ...ct the IF OUT J1 to the external equipment 3 Connect 100 240 10 VAC 47 63 Hz to AC on the back panel 4 Set the desired input frequency 5 Set the gain to get an output level in the 15 to 5 dBm range Se...

Страница 13: ...et Unit to Remote Operation Menu 8 Select Internal or External 10 MHz Ref option E Menu 9 Frequency Reference Offset option O Menu 10 Set Remote mode option Q Menu 11 Set RS 485 address option Q Save...

Страница 14: ...rator may desire 2 5 3 Control Switches 1 Menu Execute Any change to the programming of the unit must be initiated by pressing the Menu Execute switch and completed by pressing the Menu Execute switch...

Страница 15: ...50 000 DN F 4600 000 R By using the horizontal rocker switch the cursor can be moved left or right U F 6850 000 G 00 D F 4600 000 G 30 NOTE CHANGES DO NOT TAKE PLACE ON FREQUENCY UNTIL YOU GO TO THE S...

Страница 16: ...ssible UP INLVL 20 R Pressing the Up Down switch to change the level in 1 or 10 dB steps depending on the character that is selected and then push the Menu Execute switch to get to the Gain setting UP...

Страница 17: ...wn switch to change the level in 1 or 10 dB steps By using the horizontal rocker switch the cursor can be moved left or right Pressing the Up Down switch down will toggle the display digit selected un...

Страница 18: ...set 30 to 50 for 15 to 5 dBm out level Menu 6 Up Mute Menu 7 Set Unit to Remote Operation Menu 8 Select Internal or External 10 MHz Ref option E Menu 9 Reference Offset option O Menu 10 Set Remote Mod...

Страница 19: ...S INC 6170 Shiloh Road Alpharetta Georgia 30005 770 886 8005 FAX 770 886 7964 Toll Free 888 900 5588 WEB www crosstechnologies com E MAIL info crosstechnologies com Printed in USA 2017 74 Manual Rev B...

Отзывы: