[amsat-bb] Re: Arrow and EME?

[Oscar Diez]

Hi folks,

I think it should be possible to work at least the three big guns out there:
W5UN, KB8RQ and RN6BN. With their huge antenna arrays they can hear very low
power EME stations. 100-150W into the arrow should work theoretically with
those three stations if moon condx are favourable.

The best thing is to hang around in the JT65 EME chat under this address:
http://www.chris.org/cgi-bin/jt65emeA

Usually you only need to wait there till the big guns announce a CQ call
there with their used frequency. You can then also take the advantage of
realtime communication via this website to arrange a sked in realtime with
them and they will keep their ears open for you, hi

The "QRPp EME record" so far for RN6BN by the way was working LZ1BB using a
4el. DK7ZB yagi with only 40W into antenna....thus Arrow should work also
when power over 100W is used.

I can occasionally work down to 8 yagi stations in JT65B mode using a 6el.
DK7ZB Yagi and about 130W into Antenna (160W Brick-AMP minus cable loss)

For example I worked EA6VQ on Mallorca Island with his 8x17el. M2 array with
my relatively small antenna.

I can sometimes decode down to 2 yagi high power stations on JT65B RX mode
if moon condx are good...but 2-way QSO is not possible with those small
counterparts.

Here some links from other EME QRPers:

http://www.ok2kkw.com/00000104/eme.htm
(used 4el. yagi And 100W)

http://www.dj7al.de/12906.html
(used 4el. F9FT yagi and 200W)

http://www.dj7al.de/11026.html
(same station testing only HB9CV 2el. and 200W)


And here is a nice tutorial to get started in JT65B mode EME operations:
http://www.vhfdx.net/jt65bintro.html

Best 73 de Oscar DJ0MY