PA0O ham radio

30/60/80 ingewaterde H155 28m vervangen door 25m highflex  7mm iets zwaarder met zwarte buiten mantel iets dikker Daiwa NS 660P   behoorlijk minder  aanwijzing dan de interne meter van de K3 50MHz   4,3W in       3,8W uit    + 25m h.flexx Daiwa 28Mhz    7  W in         6  W  uit   + 25m h.flexx Daiwa 430MHz  10W  -> ca. 3.5W op RF power meter PM1300a Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az  2016-10-27 01:38   ZS4AFV   5.288598   -28   0   KG30au   10   PA0O   JO33hg   9355   348   2016-10-27 01:28   ZS4AFV   5.288598   -30   0   KG30au   10   PA0O   JO33hg   9355   348   2016-10-27 01:18   ZS4AFV   5.28859...

Remarkable low level of atmospheric noise  the S-meter barely moved higher then S6 on the vertical. No Beverage need But low activity   10 W's heard 2 in the log. NP2A nice signal best DX heard No other PA heard but it was deep in the night 03 when I quit.         Band    QSOs    Pts          1.8      36     174        Total      36     174 i can multiply with 1.5   100W max I like this type of exchange   like the CQWW VHF    VI. Exchange Callsign and Maidenhead grid locator (4 characters, e.g., EM15). Signal reports are not required and should not be included in the log entry.     5. QSO Points: The number of QSO points for each contact depends on the distance between the two stations. This is computed by taking the distance between the centers of the two grid squares. Count a minimum...

The original 96MHz  x12  chain  was at 1150.010   10kHz high  could not correct it  Also showing the usual temperature drift as most  x-tal 's have and  a bit too high in frequency I cut the 8V supply of the internal  X-tal 96MHz  x 12 3 stage part and fitted an SMA for the external l.o. the 1150 is injected trough the 1152 helical filter using a 4.7 pF coupling C  . The 10 OHm chip to the disabled tripler transistor was removed.  The signal level at the mixer is enough also with this 10 OHm left in. My effort to replace the internal l.o. 1152MHz  using ADF4351A PLL 35 - 4000MHz demo board  or the GPS locked Progrock oscillator output did not result in a good quality signal. I decided to buy a DF9NP ready build PLL for 1150MHz switchable between 4 l.o. frequencies.       Very quick build and delivered  by Dieter Leupold.   Now with this external PLL the DB6NT  1.3G...

Improved the DB6NT  1.3GHz XVTR  to be almost exact at at frequency.  with external PLL at 1150.00000 MHz  The original 96MHz  was 10kHz high  could not be tuned lower  Had the usual temperature drift like most  x-tal 's  a bit too high in frequency Received   this nice PLL  unit from  DF9NP   1150/1152 MHz local oscillator It is the box left very quick build and delivered   Very stable and clean signal  from this unit. using ADF4153 and TCXO  0.5ppm  -20 -- +70 C standalone already  very stable  The weakest part is now the IC706 that needs a warmup time to become stable But this IC706 is stable enough for 144MHz WSPR so it is not that bad My ADF4351A test board is used as test signal generator 1296.200  and the 10MHz overtone at 1300MHz is still a good strong reference signal I switched off the internal  X-tal 96MHz  x 12 3 stage part and fi...

Improved the DB6NT  1.3GHz XVTR  to be almost exact at at frequency.  with external PLL at 1150.00000 MHz  The original 96MHz  was 10kHz high  could not be tuned lower  Had the usual temperature drift like most  x-tal 's  a bit too high in frequency Received   this nice PLL  unit from  DF9NP   1150/1152 MHz local oscillator It is the box left very quick build and delivered   Very stable and clean signal  from this unit. using ADF4153 and TCXO  0.5ppm  -20 -- +70 C standalone already  very stable  The weakest part is now the IC706 that needs a warmup time to become stable But this IC706 is stable enough for 144MHz WSPR so it is not that bad My ADF4351A test board is used as test signal generator 1296.200  and the 10MHz overtone at 1300MHz is still a good strong reference signal I switched off the internal  X-tal 96MHz  x 12 3 stage part and fi...

Improved the DB6NT  1.3GHz XVTR  to be almost exact at at frequency.  with external PLL at 1150.00000 MHz  The original 96MHz  was 10kHz high  could not be tuned lower  Had the usual temperature drift like most  x-tal 's  a bit too high in frequency Received   this nice PLL  unit from  DF9NP   1150/1152 MHz local oscillator It is the box left very quick build and delivered   Very stable and clean signal  from this unit. using ADF4153 and TCXO  0.5ppm  -20 -- +70 C standalone already  very stable  The weakest part is now the IC706 that needs a warmup time to become stable But this IC706 is stable enough for 144MHz WSPR so it is not that bad My ADF4351A test board is used as test signal generator 1296.200  and the 10MHz overtone at 1300MHz is still a good strong reference signal I switched off the internal  X-tal 96MHz  x 12 3 stage part and fi...

Improved the DB6NT  1.3GHz XVTR  to be almost exact at at frequency.  with external PLL at 1150.00000 MHz  The original 96MHz  was 10kHz high  could not be tuned lower  Had the usual temperature drift like most  x-tal 's  a bit too high in frequency Received   this nice PLL  unit from  DF9NP   1150/1152 MHz local oscillator It is the box left very quick build and delivered   Very stable and clean signal  from this unit. using ADF4153 and TCXO  0.5ppm  -20 -- +70 C standalone already  very stable  The weakest part is now the IC706 that needs a warmup time to become stable But this IC706 is stable enough for 144MHz WSPR so it is not that bad My ADF4351A test board is used as test signal generator 1296.200  and the 10MHz overtone at 1300MHz is still a good strong reference signal I switched off the internal  X-tal 96MHz  x 12 3 stage part and fi...