NieuweMobiel.NLVergeet je blauwe vinkjes!
Op deze dag in 1997 trok KPN de stekker uit het nationale semafoonnetwerk. 📟
Je kreeg een code op je pieper en moest dan hollen naar een telefooncel om terug te bellen! ☎️
Wie heeft er nog zo’n pieper gehad?
Alex@rtnVFRmedia Suffolk UKThe TX was originally set up for static on site frequencies which I don't have a license for at home.
I do have a UK-wide Suppliers/Test license from Ofcom which allocates me a load of (shared) VHF/UHF frequencies, so I must use one of 2 #UHF frequencies with 25 KHz spacing that allow 4,5 KHz deviation
TX power is set to 3W at the moment (the TX will output 5W I'm allowed 10W but don't want to hog this frequency (I'm quite high up)
potentially 3km or more range 😉
vfrmediapager TX test
managed to get this video within 8MB limit by re-rendering it, here's some old skool "social networking" like we did it in 1990...
how we communicated with pirate radio DJ's in that era [I now have a legit Ofcom license for the pager equipment - I set these up for on-site paging at work]
if anyone is interested in rest of the setup (arduino based) I will try and convert and upload the rest of the info