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K0CQ > MOON 07.04.09 00:17l 63 Lines 1849 Bytes #999 (0) @ WW
BID : 54216_W0AK
Read: GUEST
Subj: Re: moonbouncing,,what is it
Path: IZ3LSV<IK2XDE<DB0RES<ON0BEL<N9ZZK<KD4GCA<N0KFQ<KB0OFD<KQ0I<W0AK
Sent: 090406/0117Z @:W0AK.#CIA.IA.USA.NOAM #:54216 [Des Moines] $:54216_W0AK
From: K0CQ@W0AK.#CIA.IA.USA.NOAM
To : MOON@WW
VE2CKN wrote:-
> From : VE2CKN
> To : MOON@WW
> Type/status : B$
> Date/time : 03-Apr 13:50
> BID (MID) : 37336_VE2RXY
> Message # : 318292
> Title : moonbouncing,,what is it
>
> Path: !F6BVP!F4BWT!ON0AR!HS1LMV!CX2SA!HP2AT!KD4GCA!VE2RXY!
>
> From: VE2CKN@VE2RXY.#EQC.QC.CAN.NOAM
> To : MOON@WW
>
> hi all
> well what is moonbouncing
> i have heard about it many years ago and now
> it is back in my mind.
> maybe someone could explain simply what it is
> thanks
> gervais ve2ckn
Gervais,
It's using the moon as a passive reflector to permit radio contacts
between stations in different parts of the world.
Moonbounce requires high ERP with, generally, very low angles of radiation
and the moon is generally very low on the horizon, between the two
stations.
The bands of 2m, 70cm and 23cm are know by me to have been used for
Moonbounce.
You may know it as EME, Earth - Moon - Earth.
A well known VK Moonbouncer from yesteryear is VK3ATN who used VERY large,
stacked, steerable Rhombics on 2m.
Cheers ... Ray vk2tv
Ray, EME has been worked on microwave bands 2.3, 2.4, 3.3, 5.6,
10, 24 and 47 GHz. There are only three in the world that have
worked EME on 47 GHz, VE4MA and W5LUA are two of them. They are
also among the few (less than ten) who have worked EME on 24 GHz.
10 Ghz is probably more popular than 23 cm and the most popular
of the microwave bands for EME.
Low elevation angles are used only when working a full half way
around the world, and sometimes to gather a bit more antenna gain
from ground reflection at the cost of greater receiver noise from
the warm earth (as compared to sky away from the sun).
Software modes like JT65 have allowed much EME with lower powered
signals.
73, Jerry, K0CQ @ W0AK.#CIA.IA.USA
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