Software/hardware for signal recording?

  • Thread starter Thread starter Firefox123
  • Start date Start date
  • Tags Tags
    Signal
AI Thread Summary
The discussion focuses on the need to record a one-second paging signal from a cordless phone, with potential future requirements for DTMF tone recording. The user is currently utilizing an Agilent VSA but is uncertain about its recording capabilities given their bandwidth settings. Suggestions include using a radio receiver and oscilloscope for capturing the RF signal, or duplicating the cordless phone's base station hardware for easier signal generation. The user has opted for Adobe Audition for recording, which is proving effective. Overall, the conversation emphasizes the importance of suitable hardware and software for signal recording and playback.
Firefox123
Messages
183
Reaction score
1
Im trying to record about 1 second of a page signal from a cordless phone (later I might need to do this to the DTMF tones as well) so I can play it back and send it to a signal generator.

I am using a VSA from Agilent, but I am not sure if it can record a full second with the bandwidths I am using.

My span is about 50 kHz and I have a resolution bandwidth of 1kHz (I may change this to 10 or 30 kHz though)...

If anyone knows some good hardware/software for recording and playing back signals please let me know...

And some software that can record, decode, and create DTMF signals would be a nice bonus as well.

If anyone has any info Id really appreciate it.

Thanks.
 
Engineering news on Phys.org
Are you talking about recording the sound the cordless phone makes when it's paged?

The web should be absolutely littered with DTMF tone generators. You can probably write one with ten lines of a language like Python.

- Warren
 
chroot said:
Are you talking about recording the sound the cordless phone makes when it's paged?

Im talking about recording the paging signal itself...in its FM format as transmitted.

chroot said:
The web should be absolutely littered with DTMF tone generators. You can probably write one with ten lines of a language like Python.

- Warren

Sure they are out there...but it never hurts to ask.
 
Well, I suppose you'd need a radio receiver and oscilloscope to "record" the radio signal itself.

Why don't you just duplicate the hardware the cordless phone base station uses to generate the page signal? That'd probably be much easier than trying to "record" and "play back" the RF signal.

- Warren
 
chroot said:
Well, I suppose you'd need a radio receiver and oscilloscope to "record" the radio signal itself.

Thats the basic idea...you can use a spectrum analyzer as a basic receiver (to demodulate the signal and strip the carrier off) and then record with an oscilloscope...but the scope I currently have can't really do a recording like I need it to...

chroot said:
Why don't you just duplicate the hardware the cordless phone base station uses to generate the page signal? That'd probably be much easier than trying to "record" and "play back" the RF signal.

That could be done, but the application I am using it for would be better served with recording and playback capability. Id explain, but unforutnately I really can't give any specifics.
 
Thanks for all the replies...

I decided to use Adobe Audition and it is working out pretty good.






Russ
 
Thread 'Weird near-field phenomenon I get in my EM simulation'
I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
Back
Top