how i can make (if filter property) (set to bypass)

[hany_anees]

i want to set if filter property in Pxie5601 to bypass

[Anthony_F]

Hello hany anees,

If you are using LabVIEW:

1. Create an niRFSA Property Node on the block diagram
2. Set the property to be IF Filter by navingating to Signal Path » Advanced » NI 5663 » IF Filter
   
3. Create a constant or a control and select Bypass

[hany_anees]

how i can configure the 5601 inside the solution

in property node reference in and out , i want to connect them.

also when make the 5601 in bypass the IF output  = RFin - LO  or not

because of i want to output the IF = 70 M so i want to adjust the RFin and LO values to output the 70 M and 5601 to bypass to output this 70 M not only 187.5 M or 53 M

can acheive this or no proposed me with example

[Anthony_F]

in property node reference in and out , i want to connect them.

 I'm not quite sure what you mean by this statement.

The IF output will always be RFin +/- LO (depending on your LO injection method). You will want to externally filter the IF output if you choose to disable the IF filter.

Will you be providing a LO with a frequency of RF+/- 70 MHz?

[hany_anees]

OK already i changed the frequency for LO to ( RFin+70M ) (also i tried using (RFin-70M) )using the NI5652 and input it to (LO in) input on the NI5601 then i connected the analayzer on the (IFout) on NI5652 but i did not find the 70M, then i try using the property for disable the IF filter (ByPass the IF Filter) but also still did not obtain the 70M on the (IFout) on NI5652.

may be i could not make access for the NI5652 correct by using the LabView 

thank you for reply me

Hany Anees 

[hany_anees]

OK already i changed the frequency for LO to ( RFin+70M ) (also i tried using (RFin-70M) )using the NI5652 and input it to (LO in) input on the NI5601 then i connected the analayzer on the (IFout) on NI5601 but i did not find the 70M, then i try using the property for disable the IF filter (ByPass the IF Filter) but also still did not obtain the 70M on the (IFout) on NI5601.

may be i could not make access for the NI5601 correct by using the LabView 

thank you for reply me

Hany Anees 

[Branch_Support-NIC]

I was able to set this up without much trouble

LO = 123 MHz @ -30 dBm

RF Test signal 43 MHz - 1 MHz @ 90 mV

IF Output of 5601, The LO is in the center @ 123 MHz and the mixed signal can be seen at RF-IF (80 MHZ) and RF+IF(166 MHz)

Are you sure that your output signal isn't burried in the noise floor?

[hany_anees]

i want the RF frequency at around 2G not at 43 M so the LO frequency also around 2G with difference =70M that is the required IF at output of 5601 but there are another problem the IF filter must be disabled (ByPass) 

[Anthony_F]

In theory this should work just fine with the IF filters bypassed. I don't have another signal source that goes up to 2 GHz handy.

What output powers were you using for your IF and LO? What was the noise floor of the VSA you used? I also posted a VI in the last post, have you had a chance to use that, this would ensure that there is nothing wrong programatically.

[hany_anees]

thank you for the reply and i recieved the VI but i had labview 2010 this VI not working with labview2010