Paul Colby's latest activity

Before I get out a hacksaws and take multiple trips to the hardware store building an antenna, I thought I would first see if my Sdrplay...

Hello scientists, engineers, etc. I have not had any questions for you recently, so have not participated here. I was scanning some...

I also ran across the discussion in the new persons thread. It got me interested in how long it would take the comet to travel...

Here’s a reference to some SDR evaluations...

In the paper written by Jon Wallace (SARA), it appears, from the 24-hour records, that radio astronomy is being done. That system...

I'd prefer to have some assurances that any bumps measured actually came in through the antenna feed and not some random interference or...

Thanks. This will get a good read. Nice antenna design. I've dusted off my coaxial switch box which allows me to pragmatically switch...

You said that you were not successful with your method. So, just try our method. If still sceptical, read att paper written by Jon...

There are much simpler tests I would definitely recommend first. Trying 0 buckets would top my list. These SDRs have a wealth of...

So, the plot shown in post #55 shows a peak. How many dB above the background is it? I ask because RTL dongles have pretty high noise...

If you use a parallel plate transmission line and tune to its resonant frequency, the electric field max position will correspond to a...