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Thinking about antennas, before I have the system:

How far away from the top power line (residential street HV to the pole transformer) do I need to be?  How much 60 Hz rejection does the Blue system have?

I will build a system and operate it in the US national radio quiet zone that includes the Green Bank radio telescope observatory, in Green Bank, West Virginia. The data stream will be made available to the astronomers using the telescope, and to the operators of the telescope through the observatory data taking system. Astronomers will use the data to help excise terrestrial noise and interference. The operators will use it to enhance the safety of the telescope. I am a retired Silicon Valley chip designer and radio designer, now working in radio astronomy. When can I tell the observatory I may be receiving a kit?

David Saroff
Rochester Institue of Technology
david.saroff@mail.rit.edu

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Gentlemen & members!


Judging from my question, it will be evident I have a very dim view of antenna theory, so pls be gentle...


I live on the top floor of a high rise with a great view of my city.
I plan to place both the ferrite antennas & E-probe on the balconny.

However, living as I do, I assume there is plenty of sources of interference coming from lower floors.


Question: is it possible to build a shielding around the probe in the (potentially) offending sectors?



Regards/M

I trust this should not be happening:

   

I have the System Blue registered...I think.

Earlier today my station ID appeared here.  Now it doesn't

Ideas anyone?

--Kurt

Hi,

  I signed up for the blue system waiting list at over 1,500.  How many kits do you manufacture at one time?

  Can you estimate the wait time months?, years?

  Looking forward to joining the network if possible.  Looks like I might help to fill-in an open area in my state (NY, between Rochester and Albany).

Thanks!

When I go to the Forum I can enter my username/Email address and the password and I can get in.  However when I try to log in to www.blitzortung.org/login.php the system will not accept my password.  Are these passwords different or is there something else I have to put in?

OK, so I spent HOURS last night trying to find the answer to what must be a very simple question--but no joy. Extremely frustrating. Surely this must be prominently posted in multiple locations in a FAQ but I can't find it. WHY is this so hard to find? Yep, read through all the system red and blue docs--not there. Searched the blitz forums--nope.

So please someone, exactly how and where do you add a new system blue to the blitz network?

I would think here: http://en.blitzortung.org/login.php (just wild guessing) but when I enter my blitzortung.org forum username and pw it tells me that it is wrong. If I enter a different email address (more wild guessing) and enter the ID of my system blue from the detectors web interface the page just blinks at me and goes back to the login.   Same result no matter what browser I use.

Help?

Thanks,

--Kurt

In Brazil, there are two Blitzortung stations.  I work at a Research Institute and would like to meet a Blitzortung station to see how it works. Do you know who the person is responsible for the stations?



913 Rio de Janeiro, Copacabana

939 Rio de Janeiro, Fundão

I've been having problems with my red amplifier recently. Symptoms are working fine then all of a sudden lights on controller dim and power drops on powered usb hub. Same symptoms when powered from PC usb port and similar behavior when powered off a battery.

When unplugging the amplifier it comes back to life. I can see similar behavior if I unplug from controller and power via mini usb port so reasonably sure its the amp. I have used a different power cable and LAN cable as part of troubleshooting

I've checked all solder joints and they are all good. There was no water ingress in the box it was mounted in. I thought it might be have been the electrolytic capacitors so replaced all 4 of them but still not solved.

I've noticed on the webpage it comes up with:
No or unknown amplifier connected

In the amplifier section it shows

PCB 12.3 FW 1.7

and I can see it disappear , reappear then drop the gain in steps as adc voltage too high, settled and then disappear.

At a loss what to try next.


log looks like this...