OK1TEH JO70FD 10 GHz log - PHOTOS + INFO
15dB HORN (measured 3W on waveguide output)  + 6W PA + transvertor DB6NT + FT290R .
 
DB6NT transvertor 2m/3cm (200mW out) with 6W PA
Detailed picture of 6W PA from DK2FD, 3W at antenna from waveguide
Oscillator with 10 MHz OCXO (by OK1VPZ)
More in Czech version at: 
http://www.ok2kkw.com/mw2004.htm 
http://www.ok2kkw.com/00003016/pll_10ghz/frekvencni_synteza.htm 
http://www.ok2kkw.com/00003016/pll/pll_lo.htm 
http://www.ok2kkw.com/00003016/sequencer/sequencer.htm 
 
Some facts about my horn antenna
Gain of HORN antenna for 3cm (source http://www.ok2kkw.com/00003016/3cm/horn.gif)
Gain
(dBd)
A side
(mm)
B side
(mm)
Length
(mm)
High HA
(mm)
High HB
(mm)
alfa ()
 
beta ()
 
K side
(mm)
14   68,2   50,5   26,2   33,1   34,6 55,6 59,8   40,1
15   76,5   56,7   36,5   43,4   45,3 58,2 62,8   50,9
16   85,8   63,6   49,6   56,5   58,9 60,9 65,6   64,7
17   96,3   71,3   66,7   73,4   76,1 63,4 68,1   82,1
18 108,1   80,0   88,5   95,1   98,2 65,9 70,4 104,2
19 121,2   89,8 116,2 122,8 126,2 68,2 72,5 132,3
20 136,0 100,8 151,6 158,2 161,8 70,3 74,4 168,0
21 152,6 113,1 196,6 203,2 207,0 72,3 76,0 213,3
22 171,3 126,9 253,7 260,3 264,3 74,1 77,5 270,7
23 192,2 144,3 326,2 333,0 337,0 75,7 78,7 343,6
24 215,6 159,7 418,1 424,7 429,1 77,2 80,1 435,5
25 241,9 179,2 535,5 541,1 545,6 78,6 81,2 552,1
My 3cm HORN antenna is 11,1cm deep (calculated gain +-18,5dBd) but real gain is about 15dB due to not so precise construction.. 
http://ok1teh.nagano.cz/horn.jpg
http://ok1teh.nagano.cz/horn2.jpg
Some YO friend asked me about polarization.
  
For new 3cm OK/OM hams: PSE read good article about rainscatter at http://www.ok2kkw.com/rs1999_jkt.htm 
BTW I have shack in plastic cupola with minimal attenuation. If you want to try 3cm RS QSO from your room,

don't forget to open window because of BIG ATTENUATION by glass!
more at http://ok1teh.nagano.cz/emepic/img_6224.jpg + http://ok1teh.nagano.cz/emepic/img_6225.jpg 
This is the view from near house QTF 0 . Now you know, why i can't work DL1SUN, SM7ECM via RS in JO62 etc :-))
 
Pretty interesting map with marked precise range of the Rain Scatter-points in 8 & 12 000m ASL for OK1TEH's QTH in Prague.  Note the yellow points which are real scatter points used during my 3cm RS DX QSO abroad. Thank to map I found that there are possibilities for 3cm RS QSO via SCP in central Poland even with LY, UA2 and EW ;-) Just is a pity that map doesn't count with trees and near houses.

Map was used from http://www.heywhatsthat.com/main-0904.html

 
 
View before of upcoming storm with my horn ant in shack QTF 270º
 
For full view of horizont from my shack click here. 
http://www.ok2kkw.com/00000104/qsl/i4xcc_3cm.jpg
http://www.ok2kkw.com/00000104/qsl/9a1z.jpg
 
HRD Beacons on 10 GHz in JO70FD (on 15dB horn) source-> internet

QRG       Call    Loc    Asl  km   QTF      EIRP/pwr      last hrd

------------------------------------------------------------------

10368.040 OK0EL  JO70SQ 1035  98  135/270 	0.35 	22-05-2007
10368.050 OK0EA  JO70UP 1355 105  180/270 	0.5 	07-08-2009
10368.811 DB0ANU JN59GG 1100 299   Omni 	5 	27-06-2006
10368.835 DB0FGB JO50WB 1100 185   Omni        13   	22-05-2007
10368.855 SR0WCK JO90NS  282 339   Omni         4.5 	22-05-2007
10368.873 OE5XBM JN78DJ  980 195   Omni        10 	22-05-2007
10368.813 OK0EW  JO60OK  875  95   Omni         1.5 W 	27-06-2009
10368.895 SR6NCI JO80JG 1150 167   Omni         1 	22-05-2007
10368.973 OE2XRO JN67LA 3105 365   Omni        13 	22-05-2007