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Showing posts from January, 2018

60m ultimate DX New Zealand

Woow 60M for the first time heard and worked  the ultimate DX  New Zealand
since 29 January ZL HAM's have access to the 60m band.

Short path distance 18500km 
But i believe this morning was long path grey line unlike the map shows and calculates.
calculation shortpath to longpath :  40000-18500 =    21500km





USB DIAL 5.362MHz  not the usual 5357
Optimal time seems around 8Z in daylight  for New Zealand  / Pacific


ZL4AS ZL3NB ZL3CW ZL4OL   in FT8  and ZL3AB ZL4OL in JT9 that decodes to -25dB

 ZL3CW was  heard weak in cw  under callers
3D2AG was reported but not copied here
last year i saw 3D2AG and T2 was earlier in the morning  05 Z

1x spot by VK7BO  09:02Z 


                                            60m lacking in DXCC select

CQ 160 CW  To compensate for FT8 QSO  2 nights CW activity
           Sunday evening could not TX without TVI   1.8MHz interferes  ADSL+  TV  signal  here
          I thought to have it fixed...




EA8AQV 6m FT8

short opening to EA8  50MHz     FT8


630m WSPR

>8000km  unique spots
TimestampCallMHzSNRDriftGridPwrReporterRGridkmaz 2018-01-22 02:40  PA0O  1.838001  -11  0  JO33hg  5  DP0GVN  IB59uh  13835  186  2018-01-22 02:38  AE5X  3.594127  -22  0  EM20jb  1  PA0O  JO33hg  8097  38  2018-01-22 06:46  KD6RF  3.594120  -15  0  EM22le  5  PA0O  JO33hg  7901  38  2018-01-22 01:54  PA0O  3.594011  -28  0  JO33hg  5  KD6RF  EM22le  7901  299  2018-01-22 00:56  PA0O  3.594001  +18  0  JO33hg  5  N4WLO/4  EM50uo  7635  293  2018-01-22 01:26  VU3KAZ  3.594100  -24  0  MK82tu  2  PA0O  JO33hg  7606  323  2018-01-22 06:04  WN2FMM  3.594095  -7  0  EL98hi  5  PA0O  JO33hg  7393  41  2018-01-22 05:30  WA4SZE  0.475653  -26  0  EM65  0.2  PA0O  JO33hg  7147  41  2018-01-22 03:24  PA0O  3.594008  -24  0  JO33hg  5  KW4KD  EM75jc  7068  294 
12 hours   474.2 kHz  best dx night  this saison


TimestampCallMHzSNRDriftGridPwrReporterRGridkmaz 2018-01-21 02:36  W4BCX  0.475766  -23  0  EL98pd  5  PA0O  JO33hg  7368  41  2018-01-21 02:44  K2BLA  0.475691  -2…

50MHz FT8

last 24 hours still some short openings detected by FT8
2 days ago 6m was open to EA3 2 4 5 7 CT1 I7 F IS0   in FT8  of course


                 80 and 160m WSPR    630m has not been good here had to repair Beverage
but just now spotted
2018-01-20 01:26  WA4SZE  0.475653  -29  0  EM65  0.2  PA0O  JO33hg  7147





28MHz open to VK January 15

January 16
160m being heard in Antarctica by DP0GVN Neumeyer Station was a nice surprise
Last 24 hours WSPR   28Mhz bit open again. Its a secret everyone thinks 28 must be dead as a
rock with the low solar figures even spotted at deserted 12m by VU3KAZ

And Antarctica Neumeyer station spotted 160m

TimestampCallMHzSNRDriftGridPwrReporterRGridkmaz 2018-01-16 10:34  VK3KCX  28.126017  -23  -2  QF22qd  20  PA0O  JO33hg  16442  312  2018-01-17 00:40  PA0O  1.838001  -23  0  JO33hg  5  DP0GVN  IB59uh  13835  186  2018-01-16 01:48  W1CK  3.594014  -27  0  DM13ie  5  PA0O  JO33hg  8987  30  2018-01-16 06:46  N5GG  3.594091  -26  0  EM13la  0.2  PA0O  JO33hg  7944  38  2018-01-16 03:42  KD6RF  3.594120  -15  0  EM22le  5  PA0O  JO33hg  7901  38  2018-01-16 06:22  PA0O  3.594011  -20  0  JO33hg  5  KD6RF  EM22le  7901  299  2018-01-16 06:22  PA0O  3.594001  +24  0  JO33hg  5  N4WLO/4  EM50uo  7635  293  2018-01-16 09:56  PA0O  24.926019  -24  0  JO33hg  5  VU3KAZ  MK82tu  7606  97  2018-01-17 00…

Tectronix 465 last update

To finish the long story about repairing The 465 is working fine now
I found a solution to prevent damage by possible CRT HV flash over
I just inserted a protective 860k resistor ( could be 1M ) in series with the -2450V  cicuit
Cut the trace direct after the HV diode   see  below the point "test onderbroken"
860k  gave a drop of only 100V    no problem for the HV regulator
the resistor can be low Wattage only 0.0116 W 100V 860k
The cathode current is 116uA neglecting the low parallel load of multiple M OHm
Since then only 1 time there was a breakdown of all voltages "light outage" but just switching off and on and all was working again  no collateral damage...
I use the Tektronix 465 again and live with the occasional break downs until i find a KRT replacement. But  after some warm up time with break downs and return it works stable for hours.
BTW a 100MHz b.t.w.
Hantek DSO5102P USB Digital Storage Oscilloscope 2Channels 100MHz 1GSa/s   can be purchased for 208€  …