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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 Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az  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 Timestamp Call MHz SNR Drift Grid Pwr

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 Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az  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 

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 purcha

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