I never thought I'd come to this, what's this aaaaaaaaall about?

[Kostas Liakakis]

"Christos Ricudis" <ricudis at paiko.gr> wrote in message
news:MSGID_2=3A413=2F11.98=40fidonet_3b840358 at fidonet.org...
> Hello Kostas!
>
>  >> 5) to anwtero epitrepto orio ekpempousas aktinobolias
>  >> _se_opoiadhpote_dief8unsh_ den kseperna ta 100mW
>
>  KL> Me 24dbi uni-directional keraia, to maximum 14dbm ths ekpomphs
>  KL> kai mhdenikh apoleia logo kalodiou 38dbm `h 6,3W ston kyrio
>  KL> lobo, amelhtaia ektos. Gia 8dbi omni-directional keraia 22dbm
>  KL> `h 158mW.
>
> Otan exeis 30mW isxy eksodou ston pompo, pws ekpempeis 6.3W apo thn
keraia?
> (den eimai mhxanikos)

H keraia exei kapoio kerdos (gain). Me alla logia enisxuei thn ekpomph. Opos
blepeis akomh kai h mh kateu0yntikh exei gain 8dbi. H plhros kateu0yntikh,
exei 24dbi gain mias kai ekpempeis pros mia sygkekrimenh kateu0ynsh.

H megisth epitrepomenh isxys sthn e3odo tou pompou einai 14dbm (symefona me
thn directiva ths EE) `h 10^(14/10) ~ 25,1mW

H isxys pou aktinobolhtai apo thn keraia einai: Pa = Pe - Ct + Gt, opou Pe h
isxys e3odou se dbm, Ct h apoleia sto kalodio se dbi (o syntelesths ton
kalodion einai dbi/m, ara oso pio makry...) kai Gt to gain ths keraias se
dbi.

Na ypen0imhso oti eimai Fysikos ? :-) Epishs auta ta BreezeCom exoun kai
gamo thn analysh sto manual tous :-))))

-K.