Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
04/18/07 15:19
Read: times


 
#137442 - this is paticulary true of Taiwanese products
Responding to: ???'s previous message
One can operate this device without further information, but it requires one have some test equipment. First and foremost, of course, is an oscilloscope of sufficient bandwidth to show the input to and output from the transmitter and receiver, respectively. Then, of course, it would be useful to have a signal source that produces intelligible input with which the output from the receiver can be compared. At ~1 Khz, this should be straightforward enough. Once one knows how to get the TX input from the RX output, sync fields and data formats can be worked out.

Without a characterization of what's currently being "put into" the RF system, and without a characterization of what's being "taken out", it's not possible to discern what's going on at all. It's really not even clear that the two modules named are intended to be used together.

RE


List of 41 messages in thread
TopicAuthorDate
rf transmitter /receiver            01/01/70 00:00      
   more details needed            01/01/70 00:00      
      rf module            01/01/70 00:00      
         Datasheet!!            01/01/70 00:00      
         to Sunish Nair ...            01/01/70 00:00      
            rf module            01/01/70 00:00      
               the published sheet is hardly a datasheet!            01/01/70 00:00      
                  No such thing as a free lunch...            01/01/70 00:00      
                     this is paticulary true of Taiwanese products            01/01/70 00:00      
                        Experts only?            01/01/70 00:00      
                           I seriously doubt that ...            01/01/70 00:00      
                     a common problem            01/01/70 00:00      
                  details            01/01/70 00:00      
                     cheap is sometimes expensive            01/01/70 00:00      
                        But how can you tell?            01/01/70 00:00      
                           you can't            01/01/70 00:00      
                        rf            01/01/70 00:00      
                           do not go in blindly            01/01/70 00:00      
                           Development vs production cost            01/01/70 00:00      
                     RS India?            01/01/70 00:00      
               I use these modules            01/01/70 00:00      
                  now I'm confoosed what is 'if'            01/01/70 00:00      
                     IF = intermediate frequency            01/01/70 00:00      
                        Superhet            01/01/70 00:00      
                     Please show me what confuses you            01/01/70 00:00      
                        just how is IR relevant to this thread?            01/01/70 00:00      
                           He said            01/01/70 00:00      
                        bad eyes, need new glasses            01/01/70 00:00      
                           How about these?            01/01/70 00:00      
                  CRC: picky, picky            01/01/70 00:00      
                     I know            01/01/70 00:00      
   Study the Requirements of the RF Pair            01/01/70 00:00      
      Consider the ethernet packet structure            01/01/70 00:00      
   Rx unable to drive 89c2051            01/01/70 00:00      
      ...and the rest            01/01/70 00:00      
         if you 'own' both ends            01/01/70 00:00      
   Check Serial Data format            01/01/70 00:00      
      somthing to rf            01/01/70 00:00      
   sorry - ignore this post            01/01/70 00:00      
   ASK is frequency distrub by noise.            01/01/70 00:00      
      Shouldn\'t the ones he already has work?            01/01/70 00:00      

Back to Subject List