[Boatanchors] My earlier post
rbethman
rbethman at comcast.net
Fri Oct 2 19:31:55 EDT 2015
I managed to try doing too many things at the same time and left a hole
square in the midst of my post.
So Here is where it got fouled up:
>
>I look at simple common sense and that hasn't done too bad for me.
Any >manufacturer can indeed say that you "can" mount the above tubes in
the horizontal >position, and tell you which pins to place in which
position when you do so. That >doesn't mean you "have" to. I prefer to
eliminate one additional
>
Now I really meant to finish it with: " element of possible failure
whenever I can. That is my preference in my projects.
Regarding SDR and Raspberry PI and the other pieces, I do not see much
sense in procuring or building some esoteric Spectrum Analyzer. The
"Raspberry Pi 2 Model B 1GB Starter Kit NOOBS Micro SD Case Power Supply
Wifi" is an inexpensive step into that world at a grand total "Buy It
Now" off E-pay price of $65.
I already have the SDRSHARP software, the"Keedox RTL-SDR, FM+DAB, DVB-T
USB Stick with the RTL2832U & R820T ICs", also inexpensive, meaning
under $15.
The Ranverter Kit is available through Hayseed Hamfest. It was designed
by W9RAN and he has gotten in with Tom N0JMY to market it. It also is
ridiculously priced at $39.95 w/o the above described "Dongle" or $49.95
with one.
I'm going to take some RG-174U and run it outside, then tie it to
something like #20 AWG enameled copper wire that is around 70 feet in
length. Feed it off the end or even in the middle, it doesn't take a
great deal of antenna with one of these Dongles. I've been piddling
around with two of them stuck into a 7 port USB hub, and their dinky
short antennas that I have altered to about 48" whips that simply sit
inside the house tied to this laptop and are on the inside window sill.
I have been using the SDR# software off the Internet, and use it's
interface. It is a manual tuning interface, but gives a good spectrum
display of a region that you center on, and I have received from the FM
BCST band upwards into the ADSB aircraft transponders at 1.090GHz.
So tuning the antenna "system" isn't really critical.
I find it interesting to play with and learn more once more.
Cheers All!
Regards, Bob - N0DGN
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