Search found 29 matches

by 9a4db
Sun Jun 03, 2018 7:13 pm
Forum: SDR Antennas
Topic: Newbie RF frontend protection Qs
Replies: 27
Views: 5867

Re: Newbie RF frontend protection Qs

Hi Phil, The only reason of double in serial diodes use, is to avoid intermodulation during the evenings when HF signals are stronger. For the rest, please look on my schematic. Let's imagine few possibilities: 1. Diodes are ground for all +1,4 or -1,4V or more on input... if is to much current - th...
by 9a4db
Thu May 24, 2018 5:20 pm
Forum: SDR Antennas
Topic: Newbie RF frontend protection Qs
Replies: 27
Views: 5867

Re: Newbie RF frontend protection Qs

This is my solution, protection with distribution of signal to two RX, designed initially for Sony ICF 2001D RX... D1-D4 = > 1N4148 Discharge element, Bourns 2057-07 Series Light Duty 2-Electrode Miniature Gas Discharge Tube (75 V) Bulb 12 V 250 mA http://www.helifor.eu/hrs/download/file.php?id=39 P...
by 9a4db
Fri May 18, 2018 10:15 am
Forum: Spectrum Analysis
Topic: RSP Spectrum analyser software available shortly
Replies: 85
Views: 21034

Re: RSP Spectrum analyser software available shortly

Currently I'm only interfacing to the SDRplay series of SDR radios. I don't have plans at the moment to interface to other external hardware, but that may be something to consider for the future. Thank you for your kind, clarification Steve. Any way for the future considerations, please take look h...
by 9a4db
Wed May 09, 2018 8:29 pm
Forum: Spectrum Analysis
Topic: RSP Spectrum analyser software available shortly
Replies: 85
Views: 21034

Re: RSP Spectrum analyser software available shortly

Great news Steve, keeping my fingers crossed :) Regarding possible tracking option, you may consider some kind of external communication over the ports like Osmo GSM stack is doing / Not sure about OS platform , W10 or some Linux or both. Can be great possibility to use signal source like ERASynth o...
by 9a4db
Sun Mar 18, 2018 11:55 am
Forum: SDR Antennas
Topic: Wideband biconic antenna
Replies: 0
Views: 1536

Wideband biconic antenna

While ago I published my wideband solution based on IKEA kitchen hardware ;)
https://hackaday.io/project/28119-bicon ... ikea-cones

663 to 1865 MHz SWR is less than 2.5:1 ,
Best SWR 1.37:1 at 1025 MHz ,
cones are 122 mm / IKEA BLANDA BLANK 300.814.67
by 9a4db
Wed Jul 12, 2017 1:07 pm
Forum: SDRplay related
Topic: RSP1 on ubuntu 17.04
Replies: 9
Views: 5295

Re: RSP1 on ubuntu 17.04

Problem solved with beta driver....
CubicSDR working now
SDRAngel some further work needed (on Angel compilation side)

Thank you for prompt assistance
Regards
Djani
by 9a4db
Tue Jul 11, 2017 10:59 am
Forum: SDRplay related
Topic: RSP1 on ubuntu 17.04
Replies: 9
Views: 5295

Re: RSP1 on ubuntu 17.04

Thank you Yes I am using USB 2.0 port, on the same port Lime reporting USB 2.0 and working on low bandwith, RTL-SDR v2 stick too API -> SDRplay_RSP_API-Linux-2.10.1.run Guess no need to test another USB cable because the same RSP1 setup is working on Win10 machine using CubicSDR or SDRConsole V3 CPU...
by 9a4db
Mon Jul 10, 2017 7:04 am
Forum: SDRplay related
Topic: RSP1 on ubuntu 17.04
Replies: 9
Views: 5295

Re: RSP1 on ubuntu 17.04

Here, CubicSDR, all SDR-s detected, first two working, last RSP1 detected, but not able to work.... Screenshot from 2017-07-10 08-54-16.png Probe -> q@q-X756UX:~$ SoapySDRUtil --probe=sdrplay ###################################################### ## Soapy SDR -- the SDR abstraction library #########...
by 9a4db
Sun Jul 09, 2017 8:55 pm
Forum: SDRplay related
Topic: RSP1 on ubuntu 17.04
Replies: 9
Views: 5295

Re: RSP1 on ubuntu 17.04

Yes, thank you.... later made add to black list Now -> q@q-X756UX:~$ SoapySDRUtil --info ###################################################### ## Soapy SDR -- the SDR abstraction library ###################################################### Lib Version: v0.6.0-g2f6a449e API Version: v0.6.0 ABI Ver...
by 9a4db
Fri Jul 07, 2017 8:22 am
Forum: SDRplay related
Topic: RSP1 on ubuntu 17.04
Replies: 9
Views: 5295

RSP1 on ubuntu 17.04

q@q-X756UX:~$ SoapySDRUtil --check=sdrplay ###################################################### ## Soapy SDR -- the SDR abstraction library ###################################################### Loading modules... done Checking driver 'sdrplay'... PRESENT q@q-X756UX:~$ SoapySDRUtil --probe=sdrpla...

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