PA0O ham radio

Last year I have build 3 QRP-LAB U3S  multimode beacon transmitters. The goal was  5W on all HF and 6m to be used as WSPR beacon on a remote location in PY This goal was never reached.  the QRP-LABS  5W PA could only make 1W at 50MHz 3W at 28MHz  it delivers 5W at the low bands only. The QRP LAB "5W PA" uses the IRF510 or  RD15HVF1  with 9:1 wide band transformer out As simple as can be. The RD15HVF1 is a VHF 10W FET it should easy deliver 5W  at all bands up to 144MHz f.i. the excellent 144MHz XVTR  (@ transverter-store) uses the RD15HVF Its output is over 10W But whatever i tried with the QRPLAB 5W PA at 12V  3W at 50MHz was the max I need a conservative reliable 5W that can run 24*7 I gave up the time consuming experiments had to accept the 3W at 28 MHz 12V Recent found some eBay RF amplifiers that looked promising. The 2W   1-930MHz  f.i.  2 of them could make 4W? But 0.5W  maximum carrier at 5V...

it looks more like 50 or 28 MHz

Noordpolderzijl JO33GK  at midnight  June 30  It is real  VU3KAZ  spots at 6m  27 June !  i had a visitor and did not attend FT8 Saw the decodes of VU2NKS  in FT8 but the opening was over. not 1W but 45W at 6m dough. This might have been the last 50MHz DX opening this season in JO33hg before it al shifts definitive to the south Only 1 ES signal heard at 144MHz just a 30 seconds RA1AS in May What a difference with 2017 2 1/2 hour 144MHz ES to the Ukraine and 1 long opening to TA h.f.  DP0GVN excellent receiving at Southpole base  even with 100mW one day 50 spots: Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az  2018-06-29 00:18   PA0O   5.366166   -23   0   JO33hg   1   DP0GVN   IB59uh   13835   186   2018-06-23 22:56   PA0O   5.366167   -14   0  ...

after midnight in direction north  PI4GN  location  JO33ii  Magic  night  birds still singing PA0O/A We tested the 70cm rig at the contest location in JO33II OY6BEC  432402 was booming loud all evening 9+10 not many stations dough but G7RAU IN79 was worked CW/Phone some G  extreme loud  with 1W or 20W no special tropo to SM6VTZ 529 strong duct over north sea Next Saturday morning again heard OY6BEC  1296.895 exact on my dial this time again 23cm over 1200km  but no one seem to be QRV OY9JD  would be normally? 2M 10Watts 30 June G7RAU  IN79jx 900km   to +2 at 144174 and GM0HTT Orkney's IO89JC S5 got 519 CW would have been easy in FT8 ;-)..

good decodes no takers? Thanks for getting  QRV at 4m  Fabian ! This time I was at the radio at the right time Alerted bij  DF5VAE calling  A92KH But unfortunate  no response to me or others? It was the first time ever heard A92 after missing A92IO few years ago. I am afraid this was the one occasion this year. hope to have 2-way one day  .. 075800 -17 -0.1 1120 ~ CQ DK2EA JO50   Germany 075815 8 0.2 735 ~ CQ DJ9YE JO43  ~Germany 075815 -14 0.3 1182 ~ CQ A92HK LL56  !Bahrain 075845 -13 0.3 1179 ~ CQ A92HK LL56  !Bahrain 075845 8 0.2 734 ~ CQ DJ9YE JO43  ~Germany 075915 -11 0.3 1178 ~ CQ A92HK LL56  !Bahrain 075945 -17 0.3 1177 ~ CQ A92HK LL56  !Bahrain 080015 -12 0.3 1176 ~ CQ A92HK LL56  !Bahrain 080045 -12 0.3 1175 ~ CQ A92HK LL56  !Bahrain 080115 -14 0.2 1425 ~ LZ2NW DJ9YE JO43 080115 0 0.2 1520 ~ LZ2NW DJ9YE JO43 0...

A bit grumbling seems to help... finally good tropo and ES /AU to TF OH LA 4m  in the night 25 to 26 June FT8 is a second live for 144MHz ! 4m TF1VHF 70.057 heard to S9 long time 1296.895 OY6BEC heard strong  several mornings and nights GM3EDN  23cm  GB3ANG 4M    2M GB3NG repeater heard in the garden at 3m gp K3 + XVTR  10W+  cool  stable real good performer this small XVTR. Only missing is the automatic switching on band change i have to do that manually hrd  144480 LA8VHF jo48xx s1 GM4FVM IO85  +13 Jim ! 144.174 1296.860  LA1UHG JO59fB  s5  FT8 GI6ATZ 144.174 +4   IO74  easy to QSO in FT8 with GI 10W i use to terror the 2m with 2x 4cx250.... those days are gone

Now K3 + XVTR in use  manual switching the power to disconnect 12V XVTR144 before  start to TX   70MHz now heard LA8VHF 144.480 S1 LA1UHG 1296.860 23 stronger  to s5 last night Aurora signals heard at 4m LA9BM cw 55A and TF1VHF 70.057 loud  for PI4 tune  USB  700HZ lower even JA was workd by OZ in JO44 just 300km n-e of me  over North pole pity that the QTF is not noted in the spots is it direct QTF 0  or  NNW NNE  the rotor stop is 0 some glimps of DX here in JO33hg  25 June June has been very poor in real DX  here sofar signals very thin -17 -20 and only short decoded other parts off EU seem to be in  better position