1296 MHz: First signals off the moon

Yesterday the 1296 MHz EME-Project reached a new milestone: After mounting a waterprooved box with preamp and protection relais close to the Septum feed during the past days I tried to listen off the moon for the first time. I asked Dan, HB9Q, if he could transmit some minutes for me with his 10m dish. And so he did. Holding the feed out of the basements window, pointing to the moon and HB9Q was copied easily with -26 dB in JT65c mode. Whow, what a feeling! Now I’m waiting for better weather for further setups. 

2018-01-31_hb9q

Christmas Presents

The weather before Christmas was quiet and suitable for maintaining antennas. So I improved the matching of my 160m inverted L-antenna to get some more DXCC entities during the days off. Conditions on Top-Band were very good at a K-index of 1 and the signals, especially from Asia, were very loud in times. The following 6 new countries have been logged: Mozambique (C93PA), Azores (CU3EQ), Mongolia (JT1CO), South Korea (HL5IVL), Taiwan (BV1AP), Mexico (XE1TD). Also four new Zones for 160m WAZ (03 / 06 / 23 / 37) and seven new US-States for the 160m WAS were worked: Arkansas (K5GO), California (K6RW), Colorado (K0RF), Michigan (K8TLC), Minnesota (K0TT), Montana (KM7W) and Utah (WA7LNW). It was interesting to see how the terminus of the greyline correlated with the higher signal strengths (see picture).

2017-12-24_160_JATalking about 2m I concentrated to EME during the days between Christmas and New Year. The moon was in good position with low degradation and finally 43  initial callsigns, several new WW-locator and two new DXCC entities found the way into the log. After several tries I was very happy to work Ricardo, LU7FA, on Dec. 27 for DXCC #67 and Bing, YC2MDU, on Dec. 31, 2017 for DXCC #68. It is interesting to mention that LU7FA has just 2 antennas and YC2MDU using just 400 W output. Two great belated Christmas gifts and a happy ending 2017.

Great Weekend on 144 MHz EME

Since I was not active on 144 MHz EME over the last 2 months due to vacations and other commitments, this weekend was a real goal. Conditions were excellent all weekend and Faraday was mostly cooperative.

At moonrise on Friday evening I completed a QSO with Australia, a very problematic direction from my location because of manmade noise at low elevation angels. Wayne, VK5APN, gave a new DXCC, new ODX with 15.528 km and finally the last missing continent Oceania. The second new DXCC this night was RA9CHL in the asian part of Russia.

On early Sunday morning, a QSO with the German one-man DXpedition V31EME and another new country, DXCC # 65, succeeded. Not easy to fight against so many well equipped multi-antenna-stations. Uwe, DG8NCO, did a really very good job and catched also weak signals out of the pilup.

Another highlight was a QSO with IK1FJI, Walter, who also works with only one Yagi. This completed my first 1 Yagi – 1 Yagi Moonbounce contact.

A total of more than 40 QSO’s and 38 initials were logged, a really great EME weekend. Listed details are here.
2017-12_v31eme

144 MHz EME: Back in business


There was a lot of work to be done in the garden during the last weeks: No, not only mowing gras, but also a larger hole had to be excavated and filled with concrete. Then mounting a stable metal pole on it, a rotor and, of course, another antenna. An 8m long 12 element DK7ZB Yagi was the choice, 14.1 dBd gain. Not much at all for a 2m EME system, but we’ll see what’s possible. 

On Saturday afternoon everything was ready to go for the first test. The automatic tracking system worked perfect and turned the antenna exactly to the moon, who was almost in the south. Just only 30 degrees elevation and almost 2 dB additional pathloss – not very promising. Will this be enough to hear someone?

It was enough! UA4AQL was easily detected in the waterfall, calling cq in JT65 mode. One periode calling and he came back to me – whow, what a good feeling! After this initial contact, four more QSO’s followed with LZ2FO, RX1AS, OH4LA and F4DJK.

Listed details are here

2107-08-26_eme_ua4aql

2017_09-01_144ant