VK3NX
Australian Amateur Radio Station
24 GHz EME
EQUIPMENT ON 24 GHz EME

•        2.4 m  Solid dish  (Andrews)  

•        11.5 W Kuhne SSPA  (10 W at feed)  short  WR42  flexible W/G  to  
W/G Switch (~0.5dB loss)

•        Feed:  Super VE4MA  choke flange   with  Circular to  rectangular
transition (WR42)

•        W/G switch:  “EVENTS HORIZON”

•        LNA @ feed
Kuhne 1.5dB NF  27 db gain  +  DB6NT design (homebrew)  NF= Max
2.0dB  Gain =  11.5dB
Total  gain is 38.5dB in “feed box”

•        LMR240  with Radiall 18GHz connectors  for  short  run  on Tx  
and Rx  from “feed box” to  transverter

•        Transverter = Thales  26 GHz  units  running  1296 MHz  IF.   Then  
2nd down-conversion to  144MHz IF.   

•        Kuhne  24 GHz  W/G  filters  on  Rx and Tx  ports of Thales  unit.  
(Absolutely necessary due to very   poor image rejection ~4dB  only  
with 1296 MHz  IF)


Perfomance:

•        Best Moon noise measured at  2.2dB

At low path loss and low levels of libration my echoes are audible.
STATIONS WORKED ON 24 GHz EME
INITIAL
 STATION
 MODE
 REPORTS
 COMMENTS
1
 OK1KIR
 JT4
 -15 / O
 16/11/2013
  OK1KIR
 CW
 O / M
 16/11/2013      1st VK-OK CW     1st VK- CW on 24GHz
Previous VK record for CW  EME  15,885.5 Km
2
 G3WDG
 JT4
 -15 / -16
 16/11/2013      1st VK-G   VK  Previous digital EME
Record     WORLD record EME    16,878.8 Km
3
 W5LUA
 JT4
 -14  / -17
 18/11/2013      14579.5 Km
4
 JA1WQF
 JT4
 -14 / -17
 7/12/2013   1st VK-JA
5
 JA6CZD
 CW
 O / O
 01/02/2014   1ST VK-JA CW
6
 LX1DB
 CW
 O / O
 27/04/2014  1st VK - LX  CW   
VK and WORLD EME CW RECORD  16,468.5 km
  W5LUA
 CW
 O / M
 14/07/2014   1st   VK - W  CW  Contact
7
 OK1CA
 CW
 O / O
 05/10/2014
8
 DF1OI
 CW
 O / M
 10/10/2014   1st VK - DL CW Contact
9
 JA4BLC
 CW
 O / M
 24/10/2015   
  JA1WQF
 CW
 O / O
 24/10/2015
10
 OZ1LPR
 QRA64
 -18 / -21
 23/04/2018
         
         
Link to OK1KIR contact report  18/11/2013
Link to JA1WQF contact report  7/12/2013
Link to LX1DB contact report  27/04/2014
24GHz EME AUDIO recordings:
LX1DB APRIL 2014
LX1DB APRIL 2014
Link to W5LUA contact report 14/07/2014
W5LUA July 2014
W5LUA July 2014
W5LUA July 2014
Link to DF1OI contact report 10/10/2014
My echoes as received at low loss and low "spread"  in October 2014.
Not  very  strong  but they are there!