I have some general questions regarding ADAR100 EVALZ:
1. There is a J1 and J2 connector on the board. But there is no description about this connection in the data sheet...
In the data sheet there is only J5 described....and this line is not on the board..
2. Is the Technology of ADAR a CW or pulsed signal?
3. Is it possible to use TX/RX at the same time? Or do you have to use only TX for example and terminate the RX channels? In this case I can use a horn antenna for a RX...
I would be very glad, if you can answer these questions.
Thanks in Advance...
Answers to your questions:
1. Evaluation board schematic is in the User Guide, available on the product webpage - also attached below. J1 and J2 are SMA connectors for the calibration path. Do you mean P1 and P2? Those contain various GPIO and SPI connections.
2. I don't know if I understand the question. Do you mean can you use a pulse or CW signal with the ADAR1000? If so, you can use either, just as long as you do not go beyond the absolute maximum ratings in the datasheet.
3. You cannot be in Tx mode and Rx mode at the same time; you can either be in Tx mode or Rx mode - you have to switch back and forth. Unused channels should be loaded with 50 Ohms.
thanks very much, you´ve answered all my questions.
Regarding the first question: No I don´t mean P1 and P2. I mean J1 and J2...could you give an example what you mean with calibration path? I thought only the Channel RF_IO is for the network analyzer....
yes, I anderstood it from the datasheet of ADAR1000....I generated many files...I attached an example, you can have a look....Can you just give me an example, how I can attach a file with TX1=45 degrees and TX2=90 degrees....its not possible to upload more files..or more adresses in one file
But I always get a failure, if I attach this:
Usually that error is thrown when the USB connector is not connected from your computer to the SDP-S board. Please make sure all cables are still connected after you hit the "Connect" button in the Connection tab.
I'll attached an example file for you.
thank you very much, I didnt receive any file...is that example with phase degrees for more than one TX?
I need to set the phase for Tx1-TX4..
Try this file...
You only asked for Tx1 and Tx2, so that is all I included. I only added writes to Registers 0x1D, 0x22 and 0x23.
Try using Tables 13, 14, 15, and 16 and the Register map found in Table 23 to alter the attached file so that Tx3 and Tx4 gain and phase are also set. You will want to write to Registers 0x1E and 0x1F for the VGA gain, and 0x24 through 0x27 to set the phase via the vector modulator.
I tried it today again and got no failure, dont know why....It also worked with Tx1-Tx4...But you did a mistake in line 11...it should be 2035 and not 36...I saw this mistake also in you txt File on you website for 45 degrees,...is it right?
sorry I mean, line 12 should be 2135 and not 36
Good to hear everything is working now.
Thanks for catching the error.
yes, thank you very much! You surely know what the elevation and azimut angle are, right? How would you test the ADAR EVALZ with different elevation angles? I use patch antennas for the ADAR EVAlZ...
Elevation and Azimuth angles are application specific. It is the user's responsibility to calculate the angles based on their system design and details.
The ADAR1000 enables the user change elevation and azimuth angles by changing ADAR1000's gain and phase to particular values.