01-13-2006 02:38 PM
01-13-2006 03:19 PM
01-13-2006 04:05 PM
Thanks for the prompt response. I am in a very basic prototype stage with limited budget. In addition, the signal strength display is not a requirement of my demo. It's just an added feature I'd like to show.
Is there a way i could do this without the Spectral Measurements Toolkit and Modulation Toolkit?
01-16-2006 11:47 AM
01-16-2006 12:15 PM
05-24-2012 04:11 PM
I would like to revive this topic rather than start a new one.
I need to measure the signal strength from multiple sources using "cordless phone" technology. That description isn't mine, that was all the information I was given. Right now I need the basic information to go forward,and am not getting a lot of details other than the client uses LABView 8.6, is in a pre-development stage and just wants to prove concept. They want to measure the signal strength from more than one cordless telephone, and save the data in a file to be used later.
Can I get some inforrmation to get started?
Thanks in advance.
05-26-2012 05:51 PM
That sounds like a client that you should say "No" to!
If they will not define the problem any more clearly than that, make sure they will pay you to do it for them.
1. I have never heard of a cordless phone with any kind of interface for connecting to a computer. While a few may have signal strength indicators, I doubt those are common or that the data is accessible to an external computer. How much reverse engineering of the phones are they going to pay you to do?
2. Which cordless phone frequency band(s) are involved?
3. Do you have access to any rf measurement equipment or any commercial receivers which cover the frequency bands of interest? Will they rent it if they do not have it?
4. How will you detect and compensate for interference from other phones (not the ones you are trying to measure) and other devices which happen to be operating nearby on the same frequencies?
I can think of a variety of ways to do some of the things they may be asking, but without pinning things down a bit (OK, a lot), it will be hard to know where to start.
05-30-2012 04:47 PM
I'm to transmit and receive an output bit stream, by modulating and demodulating an RF signal.
I'm using MT RFSG Generate FSK.vi and MT niRFSA FSK Trellis Diagram.vi.
How to measure SNR of the channel using a Spectral Measurements Toolkit?
I'm using PXIe-5663 RF VSA and PXI-5671 RF VSG with an antenna
The carrier frequency is 1.8 GHz.
Thanks in advance!