Further to Short Wave/World Service

by **Dave** » 28 Nov 2006, 17:02

Richard/Allan .... that's about right - but you cheat. You don't have a full wavelength aerial, you make it quarter wavelength and then hope for the best - or add an aerial tuner where you can artificially tune it to "full wavelength" using a coil to artificially lengthen the aerial.
Works fantastically well as a di-pole ( s.o.p. as a young Marine sigs found out !).
Trouble is, come dusk, when the ionosphere starts playing up, the signal goes all "out to lunch" a tadge ! So that will - up "I'm Sorry, I Haven't A Clue" !

by **Allan** » 28 Nov 2006, 17:33

Resonant dipoles are half wavelength long Dave and it wouldn't help Bene on her Nireus balcony anyway cos she'd have to find two places to hang it from! I guess the clock tower would do for one end but the other would be somewhere down towards Harani :idea:

by **Kojak** » 28 Nov 2006, 20:01

Resonant dipoles? Damn! I've been using resonant rissoles - no wonder all I can pick up is Ready Steady Cook! :evil:

by **Dave** » 30 Nov 2006, 08:05

Half wave-length, I agree - but quarter used to work for us when the carrier pigeons were a tadge tired, Allan.
It would still span the harbour though, with the receiver in a pedalo somewhere in the middle - not practical, I admit.