mal hamilton wrote: Alberto if you understood the dih-dah code you would think different, it is more skilled than an appliance black box, press button A or B etc. I understand dih-dah-dih. I used it
John F5VLF ;o) Need a pretty decent antenna length for that, right ? And just consider the 1/f noise in the milliHertz receiver - use liquid helium cooling for the frontend ;-)
Monitored above contact Sunday 1530. M0BMUs signal so strong that I thought it was Chris G3XIZ about 1 km from me in Biggleswade testing RTTY at 23Hz shift. Tried replying then realised it was PSK. S
mal hamilton wrote: Andy and the Digi Boys Would it be possible to move to 1.9 mhz and upwards and leave 137 and 500 khz to the discerning CW radio amateurs de mal/g3kev Please don't listen to Mal. I
That Indian curry has certainly stimulated the mind now into the Megacycles range. Don't get convulsions !!!!!! Amateur bands are typically 2 to 10% of their centre frequency, so lets take a figure o
Amateur bands are typically 2 to 10% of their centre frequency, so lets take a figure of 5%, giving a useable band 95uHz wide. Allow a waveform that criutically fits inside this bandwidth - OFDM or M
Andy and the Digi Boys Would it be possible to move to 1.9 mhz and upwards and leave 137 and 500 khz to the discerning CW radio amateurs de mal/g3kev Yes, can't work out where the frequency shift cam
Alberto if you understood the dih-dah code you would think different, it is more skilled than an appliance black box, press button A or B etc. Why does it have to be on 137 or 500 khz where both band
full acknowledgement each way so at least 96 bits need to be exchanged. If no further overhead is used, the QSO could therefore be completed in four days. ...But all this has been done before Andy, a
And a good part of our solar system would be in the near field. Mal would have to contact Pluto before he could claim a DX ;-) 73, Rik ON7YD 1.9mhz - now what sort of signalling rate can you get on 1
Yes, can't work out where the frequency shift came from. I did initially lock onto Jim's tramsission at the begining of each of his overs, so I would indeed have jumped in freq a couple of times. Sub
John, if you run 1 W ERP from a small antenna it will be about 10 hours. But if you run 1 W ERP from a big antenna it will take far less time ;-) 73, Rik ON7YD What's the "out and back" time for a me
