Microwave Spectrum Issues at EME 2012

This video was made by volunteers from the British Amateur TV Club (BATC) at the EME 2012 conference in Cambridge. In the presentation Murray Niman G6JYB, and Gudmund Wannberg SM2BYA, review world wide spectrum issues and in particular the loss of part of the 2300 MHz band in Sweden.

The spectrum issues faced by moon-bounce (EME) operators are similar to those affecting the Amateur-satellite Service.

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A Special EME Operation from QM06 Japan

A Japan-Broadcasting Corporation TV report from 2007 featuring Mike Watanabe JH1KRC has just been made available on YouTube.

The YouTube description reads:

KDDI, one of the Japanese telecommunication services companies, has assigned to make experimental cooperation with the Project BIG-DISH, composed of some forty Japanese moon bouncers, and JARL.

We will use the antenna IBA-4, which is the 4th antenna of Ibaraki Satellite Communications Center, KDDI Corporation, for the experimental moon bounce operation on 144, 432, 1296 and possibly 5760 MHz bands. IBA-4 is a 32-metre Cassegrain dish made by Mitshubishi Electric Corporation in 1980’s, and is located in the grid QM06.

The IBA-4 is fully rotable and the elevation is possible up to 90 degrees for automatic moon tracking. The largest problem we have is that we cannot remove the subreflector, 2.9-m in diameter, about 9 metres in front of the main reflector. Therefore we have to use this subreflector in some way for the EME operation.

Our EME operation license is still waiting for the four bands, 144, 432, 1296, and 5760 MHz. The 5760 MHz high power moon bounce transmission is still in discussion in the ministry. Other bands are sure to be licensed for the operation with 500 watts output. We will use callsign 8N1EME. The intensive operating modes are CW, SSB, and JT65 specially on 144 and possiby on 432 also. Fundamentally, we think that random QSOs are most important, although, some scheduled QSOs may be considered for any special reason. Antennas in use will be vertilac pol. on 144 and 432 MHz, the usual EME circular pol. on 1296, and 5760 MHz.

The operation took place late February and early March, in 2007.

Watch 8N1EME-NHK-NEWS(NHK(Japan-Broadcasting Corp.))

Project Big Dish http://8n1eme.jp/

Korean EME Test with FUNcube Dongle

HL2/F4AAR has made available a video of an EME test using the AMSAT-UK FUNcube Dongle SDR during the ARRL EME 2011 Contest.

Read about it in Google English on the HL2UVH Blog with pictures http://tinyurl.com/3eqkjq3

Watch ARRL EME Contest October 2011 – HL2UVH DS4EOI HL1QAR 6K2EJJ HL2/F4AAR

Watch Single 13 ele Yagi ARRL EME October 2011.

Join the FUNcube Yahoo Group at http://uk.groups.yahoo.com/group/FUNcube/

BD4SY 2m EME received with FUNcube Dongle

Berend Edema PA3ARK has received a 144 MHz EME transmission from Zhu ShaoHua BD4SY in Changshu City using an AMSAT-UKFUNcube Dongle SDR.

Click photo for full size.

He has also received the GB3VHF beacon on 144.430 MHz over a distance of 500 km http://twitpic.com/6kfq20

PA3ARK website in Google English: http://tinyurl.com/PA3ARK
PA3ARK YouTube: http://www.youtube.com/user/PA3ARK
PA3ARK Twitter: http://twitter.com/PA3ARK

Join the FUNcube Yahoo Group at
http://groups.yahoo.com/group/FUNcube