I have my system up and running 24/7, and have both Meteor captures and NOAA captures all set to run automatically with the hardware and software listed below. Like put it across the 2 poles?Hi can anyone give me some extra information on the calculation used?I have no idea where that number came from but if you put 137MHz into a frequency to wavelength calculator ( e.g. Under one of the screws the aluminum bar is inserted and under the other screw of the same terminal the coaxial cable wire (center or braid). Select any NOAA satellite listed to learn additional details, perform live tracking or see satellite's passes visible from your location. I do have the the RL plots but did not want to complicate with this details as they are not so important for this purpose.Incorrect: A turnstile has no vertical component.

Since the QFH antenna is stationary, Oribtron sends commands to SDR# and adjusts the frequency of the receiver to adjust for the doppler shift, as the selected satellite whizzes past at about 17,000 MPH (27358 KPH).You may feel slightly or totally OVERWHELMED when trying to set up and dial in your system. I have used such an antenna for radio work since 1969, for amateur radio, satellite and military work.

It has some high-level capabilities, I’ve been using it for a few weeks now, trying out the hundreds of options and modeling of weather you can do.The software is VERY CPU intensive and graphics card intensive, so DO NOT try and run it if you are running other software like WxtoImg or LRPT or MeteorGIS.You can do 3D modeling of winds, weather, etc. Ther are plenty of open-source software pieces available out there, for Europe and other areas as well.The following ports are used to access remote data, and must be open through any firewalls or proxies at your location: You can sheck that just turning your whip antenna for 90 degrees.

You could either use a winding of a few turns of coaxial next to the feed point working as current choke or a half wave coax balun for feeding the dipole arms in oposite phase.

Most terrestrial signals are broadcast in vertical polarization, so this can help significantly reduce interference and overloading on your RTL-SDR. Links to outside sites and more satellite data: NOAA National Hurricane Center - for official forecasts and outlooks. For experimenting, I just used an off-the-shelf “rabbits ear” antenna mounted horizontally and the elements opened up to 120deg, and got surprisingly good results for NOAA satellites!Home Depot or most hardware stores or you can go to Hello I want to do this projest but I a have question. I did measure the RL and using the 1/8″ aluminum stiff wire from the video I have 20db RL for the 5MHz BW.

Cross polarization between V-H or RHCP-LHCP should be infinite, but we can see that in practice it is from 20-30 dB. Home; Most tracked. He used a RTL-SDR with SDRSharp, WXtoImg, a QFH antenna and also an LNA.

Adam also argues that the home construction of a QFH can never be perfect, so there will always be at least a ~1dB loss from inaccurate construction of these antennas anyway.The final advantage to Adams design is that construction is extremely simple. ?Right?2)But how another aluminium bar in second terminal is connected to the cable?3)Can I connect coaxial cable directly to RTL SDR , via BNC-SMA adapter ,without any dc block between them?I’m a retard. No signals detected, tried many times and both frequency…So… That is why it looks like a clay-render. and can be received with an RTL-SDR and proper antenna.Excellent site with instructions for setting up your own Meteor Capture Station If you made it this far down my page, I am guessing your kind of interested in this…so Here is one more cool thing to try, even if you don’t use any SDR’s or receivers.I tried some new (to me) open-source software to try out from the Space Science and Engineering Center a the University of Wisconsin-Madison. This will be optimal for satellites travelling in front, above and behind the antenna. Check your connections first, make sure your antenna is clear of obstructions (it needs to be outdoors and clear of buildings). Links to outside sites and more satellite data: NOAA National Hurricane Center - for official forecasts and outlooks. If you are using one of the supported browsers and are having trouble, please file a bug report using the link on the bottom of this page. My question is, can this be achieved with this V-Dipole antenna design?

He’s protecting the dongle from any potential shorts since there was no LNA in line in the initial test.Yes, this is the reason why I have a DC-block in line without LNA. Such a reflections may result with deep fading in signals due to cross polarization (30dB). The RTL-SDR can be used as a wide band radio scanner. WXtrack - Satellite tracking. The track will be approximately 2 orbits or approximately 3 hours.Time has been synchronized to UTC time at the AMSAT server so even if your PC's clock is off the time should be within 2 seconds of true UTC time.

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