Skip to main content

Aurora Borealis

After the spectacular ES event Saturday.
The awaited aurora arrived Sunday afternoon.
I was only on 4M.
Strong signals.  Could not be in the shack all the time
No new DXCC  heard this time.   
70.035 OY6BEC/B   heard vy weak only.
70.018 OH2FOUR   KP20  51a 

http://qsl.net/pa0oos/recall/aurora4m.mp3

20120715 1306  70280,1 CW   PA0O         55A  LA4YGA          51A         JO48be     
20120715 1309  70290,1 CW   PA0O         57A  LA4LN           57A Tom                
20120715 1346  70295,0 CW   PA0O         56A  LA8WF           559         JO59GV     
20120715 1404  70298,4 CW   PA0O         56A  GM4VVX          53A         IO78TA     
20120715 1407  70303,7 CW   PA0O         57A  OZ3ZW           57A Torben             
20120715 1417  70174,2 USB  PA0O         57A  LA9DL           55A JO59KE             
20120715 1434  70205,4 USB  PA0O         55A  GM8RBR          54A bill    io67uf Sky 
20120715 1449  70186,2 CW   PA0O         56A  GM4ILS          57A io87ip             
20120715 1601  70195,0 CW   PA0O         58A  G3UVR           55A         io83kh     
20120715 1602  70195,0 CW   PA0O         55A  ES2JL           599                    
20120715 1602  70195,0 CW   PA0O         55A  OZ9PP           57A                    
20120715 1608  70195,0 CW   PA0O         55A  PA0RDY          55A Rob                

The opening ended early   we took a nice bike tour.
I switched WSPR 80 160  on  expecting good propagation at 160 as experienced before with Aurora.
But this time 160m stayed close for DX.
80m   VK6DZ  again many decodes.  Also 1 decode here.  Difficult decoding the traces are very broad by Doppler effect during Aurora.


Comments

Post a Comment

Archive

Show more

Popular posts from this blog

2011-01-22 DIAMOND 2m 70cm 1m30 Colinear inside

Having relative poor signals on the local 70cm / 2m channels using this X50 Diamond collinear 70/2  1m antenna at a height of 25m. I needed to investigate what could be wrong. Measuring the cable only 3W is left for the antenna of the 10W 435MHz output from a IC451E The cable is 30m type H100 Z50 10mm outside diameter it is semi air-spaced but has an impossible 4mm² solid CU inner conductor not much air left. I preferred the H43 Z75 cable having lower loss and mechanical better ratio in conductor size. My antenna uses SO239 connector UHF type semi air spaced isolator.  3W should be enough for a comfortable noise free FM signal. But only 27km away at PA0A the signal is weak too weak something must be wrong? I made a simple reference dipole of 2x17cm CU wire. With this dipole the signals where totally worse. So the Diamond does work? I got curious to look inside. Maybe moisture penetration degraded the antenna. This  antenna is rainwater close in its n...
8 comments
Read more

SPF5189z Low noise preamp 23cm

 14-4-2018 updated Above the low noise  preamp 50 - 4GHz    ebay  6€ Tested  2 small porto antennas 1 Baofeng UV antenna left   2nd best signal on PI2NOS 2 eBay DIAMONDSRH805S  wide band 144/432/1200  it works for its size as expected 3 piece of wire :   best signal in the setup... Unit under test at workbench. It was stable  50mA  at 5V   few days,  but sudden the current went up to 100mA And i could  no longer adjust it with the negative bias Voltage. The - Voltage went to zero and the SPF input port became low Z. This SPF5189z was broken  no oscillations, no input overload just it broke while i was receiving the PI2NOS 430.125 using a small antenna at the workbench. The specs of  SPF5189z  say it has an internal circuit  regulating the bias current. Replaced . again   with an other of the 5 spare SPF i have. The new one again could be adjuste...
11 comments
Read more

TS790 cat interface

A CAT interface  for the old TS790 144/432/1292 tranceiver to work with N1MM  including the internal CW keyer DTR and "PTT" RTS and WSJT MSHV with "PTT" control Using the 3€ FTDI USB serial interface picture bottom page first i bought the Kenwood USB serial interface cable that cable has the TS790 special 6 pin DIN plug this interface works well ...as long as you cut the 4-5  wire bridge on the ACC din.. with the wire bridge it did go offline after 30 seconds or so  Kenwood interface cable with CH330 eBay 15€    This type Kenwood interface cable uses a tiny 6 pin USB CH330 chip  The driver is CH340 known for Arduino it workes in W7/10 64  It has only TX RX Usart function no DTR RTS available  The TS790 settings are 4800b 8bit data 2 stop  default  N1MM does not list the TS790 it has the TS890  but that one does not support modes the TS2000 does support freq and modes and let you switch 2/70/23 it seem...
4 comments
Read more