Search found 37 matches

by HighSNR
Thu Mar 22, 2018 6:23 am
Forum: Other SDR Devices
Topic: LimeSDR and speed update in SDRConsole
Replies: 6
Views: 5672

Re: LimeSDR and speed update in SDRConsole

I am using the FTDI drivers. Windows finds and downloads them them automatically.

The more tests I do the more I think that my unit it a lemon. I have tried a friends Lime-Mini on the same FW version and drivers and it works(well mostly).
by HighSNR
Sat Mar 17, 2018 7:50 am
Forum: Other SDR Devices
Topic: LimeSDR and speed update in SDRConsole
Replies: 6
Views: 5672

Re: LimeSDR and speed update in SDRConsole

I cant the LimeSDRmini to work on anything but the LimeSuiteGUI. I have tried 3 different computers and both Ubuntu and Windows. The big Lime-USB works fine on all. I have posted my issues on the myriadrf forum, but have totally run out of things to try. https://discourse.myriadrf.org/t/problems-wit...
by HighSNR
Wed Feb 28, 2018 10:32 pm
Forum: Antennas
Topic: UltraWideBand antenna design
Replies: 18
Views: 10622

Re: UltraWideBand antenna design

My antenna was recently tested by AntennaTestLab Please find the results here http://antennatestlab.com/ antenna-examples/example-7- antipodal-vivaldi-antenna- exponential-slot-edge-pcb?utm_ source=HexAndFlex And my own interpretation of the results here. http://hexandflex.com/2018/02/28/ultra-wideb...
by HighSNR
Sun Feb 11, 2018 8:00 am
Forum: Antennas
Topic: What happens if I hook up a loudspeaker as antenna?
Replies: 9
Views: 5061

Re: What happens if I hook up a loudspeaker as antenna?

I really like this video for giving an easily understood and importantly accurate guide to how antennas work. https://youtu.be/T-SbBlNgUTU After that the http://www.antenna-theory.com/m/index.php website is a really good source of information. Then, if you want to play and experiment 4nec2 is an eas...
by HighSNR
Fri Feb 09, 2018 3:02 pm
Forum: Antennas
Topic: What happens if I hook up a loudspeaker as antenna?
Replies: 9
Views: 5061

Re: What happens if I hook up a loudspeaker as antenna?

your speaker coil is really just acting as a large inductor. At RF frequencies this will have a very high impedance and basically just look like an open circuit. i.e very little current will flow into it. With your shorted ends two wires will couple inductively and should largely have the same curre...
by HighSNR
Sat Jan 20, 2018 3:14 pm
Forum: Antennas
Topic: UltraWideBand antenna design
Replies: 18
Views: 10622

UltraWideBand antenna design

This might be of interest to some people. I designed and built an cheap ultra-wideband directional antenna for use with my SDR. The antenna is good from about 800MHz up to about 6GHz(perhaps beyond). There are plenty of signals up in these bands such as ADSB, GPS, WiFi and tons of GSM, UMTS and LTE ...
by HighSNR
Mon Sep 18, 2017 8:34 am
Forum: Antennas
Topic: A Few Quick Questions About Antennas
Replies: 1
Views: 2515

Re: A Few Quick Questions About Antennas

A good all round antenna is the discone of you have space to mount it. These are very broadband and work on a wide bandwidth. Also log periodics and Vivaldi's are good if you need directionality. Obviously going with a broadband antenna will let strong out of band signals in that may deafen your rec...