new 2m Transverter

my as diploma thesis developed transverter got a recent addition to make it useable for S&P work also: a SI570 oscillator bought as kit from SDR kits. Ton, PA0KLT was so kind to produce a special firmware to allow a lower IF (122.6MHz LO to mix 144MHz down to 21.4MHz), where a monolithic quarzfilter filters the RX and TX path. This allows a low-phasenoise output in crowded RF environments like JO60. The normal operation is done with a OCXO (for CQ), but this limits the frequency output to +/-5KHz whats
inside the XTAL fil. The SI570 is not used for CQing, although the output ist quite low in PN and spurs (SFDR > 100dB).

2m transverter blockdiagram

2m transverter frontview with SDR-Kits Si570 LO

top view transverter, lots of filtering inside :-)

networked logging with win-test (WT-Tunnel)

Well, in SO2R contests you can at least let a CQ run (which never results in a high rate with low power), and do some S&P in parallel. If you have access to a remote site in 2km diameter, like me, you can do this on the same band,if the TRXs are good enough decoupled. For now you can download the "wt-tunnel" software to connect 2 Win-Tests via Inet together. You need

wttunnelsrv.exe: http://www.win-test.com/hq05/tunnel/server/win32/version-2.4.2/wtTunnelSrv.exe

wttunnel-1.13.exe: http://www.win-test.com/hq05/tunnel/client/win32/wtTunnel-1.13.exe

wtcom.dll: http://www.win-test.com/hq05/tunnel/client/src/wtTunnel-v1.9/WtCom.dll

Result All Asian Contest CW 12

All Asian DX Contest CW (non Asia) 2012
Result overview of DM3F

        Good  Invalid Dupe  Deleted
 Band   QSOs   QSOs   QSOs   QSOs   Mul      Pts

 160m      0      0      0      0     0        0
  80m     12      0      1      0     9       24
  40m     23      1      0      0    19       23
  20m    115      1      0      0    83      115
  15m    168      0      1      0    99      168
  10m      3      0      0      0     3        6

  all    321      2      2      0   213      336

Final result = 336 * 213 = 71.568

SOTA Lilienstein

First activation this year. Agn active on 30m. Harald, DG3UH was activating Sächsische Bergwertung on VHF (incl. 23cm). Thanks for all QSOs.

Activated SOTA Summits				Height	Points	QSO
1	DM/SX-057		Lilienstein	415m	2	42
Σ					2	42

Countries worked				QSO
1			1
2	DL		Deutschland	13
3	F		France	2
4	G		England	8
5	HA		Hungary	2
6	HB9		Switzerland	3
7	I		Italy	1
8	LY		Lithuania	1
9	OE		Austria	3
10	OK		Czech Rep.	2
11	OM		Slovakia	3
12	PA		Netherlands	2
13	S5		Slovenia	1
Σ	13			42

Band	QSO
10.0MHZ	11
7.0MHZ	31
Σ	42

Mode	QSO
CW	42
Σ	42

DH5FS (DM3F)

DG3UH