From: ok1teh Petrzilka
  To: moon-net@mailman.pe1itr.com ; moon-net@googlegroups.com
  Sent: Tuesday, November 04, 2014 11:21 AM
  Subject: [Moon-Net] Z21EME on 2m and 70cm with 1Y


  Hello all,
  just for an info, yesterday I worked Z21EME on 2m
  with unexpectedly booming signals -24dB in peek,
  QSO was done in less than 10 minutes after my first
  call. It was nice surprise for me because during
  PE1L's expeditions we usual made it after several days
  of attempts. I used on 2m single 10el dk7zb with noisy
  background (Prague), 16m long H1000 cable and
  MGF1302 LNA in shack.

  But what was absolutely incredible for me, I worked Z21EME
  even on 432 MHz!! It's my first ever 1Y to 1Y EME QSO on
  this band. I remember Bernd's DL7APV article in Dubus that
  something like that should be possible due to VK3UM's calculations
  but I've never thought that it's possible for me because of big noise.

  First when I logged at HB9Q chat, I saw that Z21EME was
  spotted by OK1DFC -12dB and better than -22dB by PA2V
  with his 4x23el LFA yagi. As far I knew that Peter PA2V
  had the same RX capabilities with his single 23el LFA yagi
  like me I realized that it could be possible to see Z21EME
  some 5dB worse, so around -27dB. Later Z21EME was decoded
  by NC1I -12dB and I saw Frank NC1I during his QSO -15dB.
  After that I decoded OH6UW -27dB and later even G4EZP -29dB.
  What a condx! While I was watching in both periods I realized
  that there is one weak trace only i Z21EME period. During QSO
  with another station I saw ST messages. Yes it's Z21EME, WOW.
  And after that - pop up, I decoded -29dB msg! After that I started calling
  and nothing was decoded so I wrote Z21EME sri missed you in noise,
  tnx for test. They wrote sri we saw you -27dB! Since then I was
  watching their frequency and started calling when they got stronger
  again. Then 2 periods of break for PA cooling and suddenly I
  decoded both callsign with OOO ;-) Signal felt down in noise again
  but after 12min I finally decoded final RRR. ST can be seen on
  my printscreen of SpecJT. After QSO Chris from Z21EME wrote
  me that they saw me -25dB in peek, truly amazing! I know that
  guys like SM4IVE, etc would say hey that's cheating with such a
  weak signal, but I don't care ;)

  Pictures from QSOs at:
  http://ok1teh.nagano.cz/eme/z21eme_70cm041114.png
  http://ok1teh.nagano.cz/eme/z21eme_2m0301114.png

  I still can't believe that Z21EME used on 70cm only 38el M2 and 400W
  (directly next to antenna), but it seems be true. Before this 1Y - 1Y QSO
  the smallest stations in my 70cm log were UA4AQL 2x26el 700W (-27dB)
  and EA3XU 2x21elY 500W (-27dB).

  My equipment at: http://ok1teh.nagano.cz/equip.htm

  Conclusion: don't be shy to try work Z21EME with Single Yagi
  on 2m and 70cm, it's possible!


  73 & big tnx to Z21EME team
  Matej, OK1TEH