Posts

474.2 kHz

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Desktop QTX s QRP  but  been decoded  by WD2XSH/17 and N1BUG

WD2XSH/17 last night  14  decodes rather weak  -23dB  at best

Today in beautiful weather I showed my antenna's to Marten PA3EKM he brought me the right type s left - right manipulator switch for the 630m tuner.
Then saw the W- Beverage was broken most of the wire laying on the ground and in the ditch but it still receives.   

 2017-03-24 23:52  WD2XSH/17  0.475641  -28  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-24 22:20  PA0O  0.475643  -26  0  JO33hg  0.2  EA8/DL9XJ  IL18sm  3335  224  but first time spotted in EA8


Now with the IRFP4227   in the QTX instead of the IRF540Z types
 I had no more blown FET's even not with a short in the coax
It is fail save now.

And  easier remote tuning the Variometer with  a motor left right switch .
Needed a double pole switch with  neutral mid position.
But those switches appear to be hard to find
A single pole manipulator switch with 4 relais Arduino unit can do it
The motor in…

U3S

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now using 27MHz TCXO on the Synthesizer v1.4 PCB
At 27.000.000 almost exact. The CAL setting for correction is disabled.
The 27Xtal  was generating around 27.003.0120
So now the drift is coming close to the K3 stability. Or the old IC706 that can run WSPR stable at 144.489 MHz (without  Icom optional 30MHz TCXO )  have to tune it  - 50Hz now







The FOX TCXO does its frequency corrections in steps!
A problem at 144 Mhz  and less serious at 50 MHz a real disappointment !
It's not easy to make a real stable clean signal even when using a TCXO with great specs..




A strange issue with extended call PA0O/U then WSTJ/x and WSPRV2.21 programs hang every time in decoding.

Still have 2 defective Synthesizer PCB's
U3S can not find the Si5351A  the Progrock red led stay's lit   when the board is plugged in.
I tried to repair by replacing the Si chips but that did not help. The I2C debugger shows the address is C0 hex but the Si chip does not or responds with NAK  not yet found the culpri…

474.2 kHz WSPR Java quota exceeded..

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MW  one of the better nights




 2017-03-20 02:50  WI2XRM  0.475722  -23  0  EL98pd  1  PA0O  JO33hg  7368  41  2017-03-20 03:56  WI2XRM  0.475660  -25  -1  EL98pd  1  PA0O  JO33hg  7368  41  2017-03-20 03:26  WI2XRM  0.475711  -26  1  EL98pd  1  PA0O  JO33hg  7368  41  2017-03-20 02:34  WH2XZO  0.475737  -26  -1  EM85wb  1  PA0O  JO33hg  6882  43  2017-03-20 05:14  WH2XZO  0.475737  -27  0  EM85wb  1  PA0O  JO33hg  6882  43  2017-03-20 02:40  WH2XZO  0.475737  -27  -1  EM85wb  1  PA0O  JO33hg  6882  43 
35 decodes  2x -6
 2017-03-20 01:16  WD2XSH/17  0.475640  -6  0  FN42pb  5  PA0O  JO33hg  5630  49
TX was running  no failures a very wet night with high RF Volts  even with my relative low power
the antenna wire is very "hot"
2017-03-20 02:56  PA0O  0.475660  -26  0  JO33hg  0.2  N1BUG  FN55mf  5297  293 

Today for some time the map view did shut down after few seconds with error message:
The preferred correct term for an error is now: Oops something went wrong


Have had this o…
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160m ant used in RusianDX
nice big contest lot of multy's to get

Rusians 10 points JA W 5 point  EU-EU Rusian 3 point Well worth to search for 10 pointers. S21ZED was on 15m in test easy to work 160m S21ZED 1811kHz heard well at times big pile but RX problems 
N1MM+ worked flawless no T/R delays The latest K3 fw update made QSK a real pleasure  smooth T/R  In N1MM QSK is uverruled by RTS signal but that is good no need for QSK in contest mode    the T/R delay is minimal.




rx only last 24 hour
2017-03-19 05:02  WG2XKA  0.475721  -25  0  FN33lq  0.5  PA0O  JO33hg  5656  49  2017-03-18 23:24  WD2XSH/17  0.475642  -22  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-18 23:26  WD2XSH/17  0.475642  -18  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-19 01:24  WD2XSH/17  0.475640  -8  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-18 23:48  WD2XSH/17  0.475641  -16  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-19 00:02  WD2XSH/17  0.475641  -17  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-0…

474.2 kHz night

TX  20%  and RX  active this night
Antenna current indication  over 100%  highest indication i got
The matching is closer to 50Ohms  less losses in coils and tuner
25V  4A
The IRFP4227  seems indestructible at 24V

2 marginal decodes of my QRP signal

 10dB lower snr   on the TX side.

strongest   of 18 decodes
2017-03-17 01:44  WD2XSH/17  0.475640  -8  0  FN42pb  5  PA0O  JO33hg  5630  49
5 decodes both
2017-03-17 03:52  WG2XKA  0.475721  -21  0  FN33lq  1  PA0O  JO33hg  5656  49 2017-03-17 03:44  WG2XPJ  0.475694  -23  0  FN34lp  1  PA0O  JO33hg  5587  50 
 2017-03-17 01:24  WG2XKA  0.475721  -29  0  FN33lq  1  PA0O  JO33hg  5656  49  2017-03-17 00:28  WD2XSH/17  0.475640  -18  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-17 03:34  PA0O  0.475614  -30  0  JO33hg  0.2  WD2XSH/17  FN42pb  5630  290  2017-03-17 02:58  WG2XPJ  0.475694  -25  0  FN34lp  1  PA0O  JO33hg  5587  50  2017-03-17 03:16  PA0O  0.475614  -28  0  JO33hg  0.2  N1BUG  FN55mf  5297  293 

DX peditions   are very active…

WSPR dx

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                                        432MHz  super tropo ducting  Hawaii California

160m L antenna used for DX peditons 160m last night
good signal 10.141 MHz 5U5R RTTY    bu 30m antenna needed adjustment now perfect SWR
20170315 2026  10125,0 CW   PA0O         599  3B8/G3TXF       599                  
20170315 2300   1823,5 CW   PA0O         599  5U5R            599                  
20170315 2321   1812,0 CW   PA0O         599  TU7C            599                  
20170315 2330   5360,0 CW   PA0O         599  5U5R            599                  

West Beverage still stands but did not improve reception of  weak 160m  5U5R TU7C signal
Farmers now started spreading manure.


rx only this night MW 17 decodes WD2XSH/17 to -9dB

 2017-03-16 04:18  PA0O  3.594178  -25  0  JO33hg  1  N5CEY  EL16gq  8529  297  2017-03-16 05:14  W6WGF  3.594074  -26  -1  EM12rw  1  PA0O  JO33hg  7923  38  2017-03-16 04:12  KD6RF  3.594117  -20  0  EM22lc  5  PA0O  JO33hg  7909  38  2017-03-16 04:18  P…

WSPR dx ing

 some "normal DX-ing at 80m CW split operations
T88XH     3506kHz
S21ZED   3522 kHz

heard 5U5R  9G5X  but JA  US only time



Last night   474.2kHz  no exceptions not a good 630m night. In south Germany  better ( as usual)
I have strong decodes of WD2XSH/17 -10 but no propagation deeper in USA.
Murphy this time it was a broken 12V regulator that normally never happens ;-)
TX worked stable now ANT current  over 100% highest ever but propagation  did not favor my QTH
WSJT-x  missed some good looking traces again strange no restarted PC

 2017-03-15 00:52  WD2XSH/17  0.475638  -23  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-15 01:04  WD2XSH/17  0.475638  -10  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-14 23:54  WD2XSH/17  0.475638  -22  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-14 23:58  WD2XSH/17  0.475638  -20  -1  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-15 00:38  WD2XSH/17  0.475638  -18  0  FN42pb  5  PA0O  JO33hg  5630  49  2017-03-15 00:04  WD2XSH/17  0.475638  -21  0…