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Jaap van oosten
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Jaap van oosten's posts

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RF_AMP 45W EBAY
very well designed high quality PCB all parts need packed with the correct diagram relative easy to build. incredible  value for money 14$ al dough could not yet test with RF  due too high bias Q2 0.6A correct diagram PCB V306 RF_AMP_2078_SCH.pdf

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JT65
several JA decoded this morning in JT65    signals too weak for FT8

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WSJT-X V1.8 first tests
Installed the latest WSJT-X V.1.8.rc1 on a W7 32b DELL D420 notebook first it crashed few seconds  after start  several times  need to force stop with p.m. After rebooting PC it was ok The frequency settings of the V1.6   needed reset to default values thes...

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IC706 repair
IC706  MA862  bandswitch fried by high 50MHz signal at 144 /VHF input SO239 replaced by 2 BA891 bandswitch diodes Ebay  above temporary jumper to select 144-148 band pass filter without the bandswitch diodes the IC706 does not switch to the VHF filter when ...

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50MHz open weekend is voorbij
Ja hoor Als vanouds  Maandag ochtend 6M band weer mooi open in het weekend was er dacht ik niet veel soeps Antenne moet wel echt op QTF 030 voor het vere oosten Naar Korea 2 stations  veel Japan  China 2 stations , de 1e keer dat ik hier zelf China op het s...

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144MHz ES 26 June 2017
Monday 26 June   A remarkable day! Saw a remarkable cluster spot DL  reported  TA1D/3  144.300 I connected my  DK7ZB  3 bander to my FT225RD  ( 30W USB 20W CW/FM)  ZB223  ( 2e 4m / 6m  3e 2m  realgood mini antenna) after some time listening heard some phone...

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IARU 50MHz 17 18 June
Saturday morning new made 7ele 9m3 boom.  band was closed and it looked like contest propagation.. But it opened up in afternoon  huge ES signals all Saturday. Mostly EU  but also  PJ4NX  and PJ7/W9DR Saturday some times small piles   SP OK UA I S5 9A als o...

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17 JUNE 2017 BIG ES 144
 fantastic long opening Starting 9:57   144.311 UR3EE 12:47  last signal heard R3KK  529 CW cqcqc KO90  did not hear me some very strong signals UR3EE 9++                                         UT4UEP  9++  and others over S9 mostly SSB simple set up the o...

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N1MM LOTW
I do not know how it happend but i got one log record with empty call sign field This was reported by TQSL when trying to upload my log to LOTW N1MM could not delete an record  with empty call sign field But deleting the selected faulty record was normal co...

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woow huge ES
June 7 2017  super ES propagation  but not  favoring  my QTH  JO33HG was in the middle  in the eye of the ES .. over my head and  heard only  17:23Z  144.300 HAHI CQ ES 59 but gone  ms / es  17:32     144.300   YO3FAI  heard several times CQ 70MHz  YO HA OM...
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