Search found 79 matches

by OH2BUA
Thu Jul 19, 2018 10:46 am
Forum: SDRplay related
Topic: RSP1A or RSP2?
Replies: 3
Views: 3520

Re: RSP1A or RSP2?

Hi, i have owned RSP1 and RSP2, now running RSP1A and RSPduo. As G1HBE comments the multiple antenna ports of RSP2 is a great thing. Regarding technology, RSP1A does also have a more proper front-end filtering. In your situation, i'd choose between RSP1A and RSPduo - based on if one antenna terminal...
by OH2BUA
Tue Jul 17, 2018 11:35 am
Forum: SDRplay related
Topic: RSPduo and other software
Replies: 25
Views: 13360

Re: RSPduo and other software

The launch of the RSPduo was timed to coincide with a major Ham radio event at Dayton, Ohio. Yes yes, but now i think it's about the time to put the Stetsons to upper shelf and concentrate in coding :D I believe RSPduo does have a LOT of unleashed power and possibilities after some critical missing...
by OH2BUA
Mon Jul 16, 2018 1:39 pm
Forum: SDRplay related
Topic: RSPduo and other software
Replies: 25
Views: 13360

Re: RSPduo and other software

Dear SDRplay, it is great that when you launch new devices - they are always ready and mature. Way to go! But, you tend to do it with very slim, insufficient software support. I think that SDRuno support only is not enough for product launch. It should be also EXTIO and Linux at least as well. SDRun...
by OH2BUA
Mon Jul 16, 2018 1:11 pm
Forum: SDRuno
Topic: SDR UNO + RSPduo + Decimation window
Replies: 10
Views: 5010

Re: SDR UNO + RSPduo + Decimation window

Hi,

I too have experienced the decimation pulldown to disappear without any clear specific reason.

I'll tell in case i'll find a repeatable sequence.

73, Jukka
by OH2BUA
Fri Jul 06, 2018 11:33 am
Forum: General
Topic: RSP RECEIVER LOW NOISE HF OPERATION WITH LONG WIRE ANTENNAS
Replies: 30
Views: 16767

Re: RSP RECEIVER LOW NOISE HF OPERATION WITH LONG WIRE ANTENNAS

Gianfranco,

thank You for your very classy article.

I will read it for several times and compare with my own observations.

73, Jukka
by OH2BUA
Mon Jul 02, 2018 12:25 pm
Forum: Code Corner
Topic: Propagation-triggered recording
Replies: 8
Views: 12212

Re: Propagation-triggered recording

Hi fellow, included in downloadable zip-file, you can find a README giving instructions. But sorry to say, for newcomers this is not very easy to get running. To start it would help a lot if one is famliar with HDSDR, WSJT-X, Omni-rig, virtual serial ports and virtual audio drivers. But have a try -...
by OH2BUA
Thu Jun 14, 2018 3:00 pm
Forum: SDR Antennas
Topic: Newbie RF frontend protection Qs
Replies: 27
Views: 16829

Re: Newbie RF frontend protection Qs

18 MHz only?!


Above 18MHz, my friend. I'm monitoring between 1.8-50Mhz (with that antenna), and I feel that on 6m I'm almost deaf.

I have other gear going nicely over 1GHz.

73, Jukka
by OH2BUA
Thu Jun 14, 2018 11:12 am
Forum: SDR Antennas
Topic: Newbie RF frontend protection Qs
Replies: 27
Views: 16829

Re: Newbie RF frontend protection Qs

Thanks for your replies. I'm planning for a 'major upgrade' for my 2*1N4148 protection system, to go for 4*1N4148. That's mainly to push down the unwanted capacitance, as I feel that my monitoring system is a little bit hard-in-hearing above 18MHz. https://www.pskreporter.info/pskmap?preset&call...
by OH2BUA
Tue Jun 12, 2018 2:52 pm
Forum: SDR Antennas
Topic: Newbie RF frontend protection Qs
Replies: 27
Views: 16829

Re: Newbie RF frontend protection Qs

Is it for sure proper way to calculate two 1N4148 diodes in series simply like 0.7 + 0.7 = 1.4V ? If we deploy 2 volts over that, is the forward voltage over one diode 1V... or perhaps just plain 0V? (Like to hear that 1.4V is ok calculation... as also the (unwanted) capacitance is halved.) 73, Jukka
by OH2BUA
Mon May 21, 2018 11:43 am
Forum: SDRplay related
Topic: RSPduo dual API question
Replies: 6
Views: 2983

Re: RSPduo dual API question

Thanks for your prompt answer.

In case you happen to need a betatester for ExtIO, I can volunteer as I 'seriously' need it.

73, Jukka

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