Search found 637 matches

by glovisol
Tue Jul 09, 2019 7:04 pm
Forum: SDR Antennas
Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Replies: 66
Views: 3137

Re: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna

A little later... Now, if a loop 0.81 square meters can give me this result, it is mind boggling to imagine what I will get with the 50 m side square loop (i.e. 2500 square meters I can set up in August, when I get back home. The important point is, we are on a solid rock foundation of theory here, ...
by glovisol
Tue Jul 09, 2019 6:43 pm
Forum: SDRplay related
Topic: Front end protection during thunderstorm?
Replies: 4
Views: 240

Re: Front end protection during thunderstorm?

Hi Mike, Did you have an isolation transformer between the 50 Ohm input and the antenna? I doubt it. The best protection against surges and the best safeguard against common mode noise is a small low noise ferrite transformer you can make with a few cents worth of materials and 15 minutes of your ti...
by glovisol
Tue Jul 09, 2019 6:38 pm
Forum: SDR Antennas
Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Replies: 66
Views: 3137

Re: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna

Hi Phil, I AM SIMPLY AMAZED!! I have been following your exchange with Sdrom33 on loop antennas and I was (I must confess) a little skeptical and suspicious of your stories about miracles of loop antennas, so, in want of anything better to do, being at the sea side in Sardinia, in a flat at the 3rd ...
by glovisol
Tue Jul 09, 2019 3:02 pm
Forum: SDR Antennas
Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Replies: 66
Views: 3137

Re: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna

In all fairness, I hate to leave loose ends. My feeling is that I have honestly and painstakingly contributed to this thread to the best of my abilities and I do not accept that Forum members publicly declare this thread "toxic" because some contributors and myself have dared to contradict...
by glovisol
Tue Jul 09, 2019 2:14 pm
Forum: SDRplay related
Topic: GETTING READY FOR RSPduo DIVERSITY SOFTWARE
Replies: 2
Views: 298

Re: GETTING READY FOR RSPduo DIVERSITY SOFTWARE

THE DIVERSITY AGE HAS ARRIVED! Knowing the release of the new Diversity software for the RSPduo was imminent, I tried my best to be ready for the happening. SDRuno Ver. 1.32 provides the facility of Diversity by operating the two Tuners of the RSPduo simoultaneously on the two coaxial 50 Ohm inputs...
by glovisol
Tue Jul 09, 2019 1:41 pm
Forum: SDRplay related
Topic: GETTING READY FOR RSPduo DIVERSITY SOFTWARE
Replies: 2
Views: 298

GETTING READY FOR RSPduo DIVERSITY SOFTWARE

Please go to next post.
by glovisol
Mon Jul 08, 2019 8:00 pm
Forum: SDR Antennas
Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Replies: 66
Views: 3137

Re: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna

Hi Ian, I modestly and politely call your attention to the fact that, if three of your posts went wrong, perhaps some responsibilty should be placed at your door. In a Forum, in any Forum, which as you rightly say, is there to help, if somebody propagates fake information (the equivalent of nowadays...
by glovisol
Mon Jul 08, 2019 11:49 am
Forum: General
Topic: BUILDING SELECTIVITY PROTECTION INTO THE RSP FRONT END IN LF/HF
Replies: 8
Views: 1147

Re: BUILDING SELECTIVITY PROTECTION INTO THE RSP FRONT END IN LF/HF

3.5 WIDE BAND PRE-SELECTORS - LOW PASS FILTER TABULAR DATA Low pass filter tabulated data is available from many sources. Uploaded below the C 03 50 table, taken from Reference 1, the most complete I have seen, where the data used for the 3.65 bandpass filter has been taken from. Partial data can a...
by glovisol
Mon Jul 08, 2019 11:05 am
Forum: SDR Antennas
Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Replies: 66
Views: 3137

Re: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna

Oh, Mike, forgot to mention I have been a member of IEEE for most of my professional life and presented my first paper on Vehicular Communications at the IRE (it was so called then) Convention of November 1966 in Montreal, Canada. Was aged 26 then, memories of long past glory....With sympathy, glovi...
by glovisol
Mon Jul 08, 2019 9:25 am
Forum: SDR Antennas
Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Replies: 66
Views: 3137

Re: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna

Mike, with sympathy, this is and has has always been the problem of many guys involved in Electronics (and in other disciplines as well!): they tend not to think with their own head, but lend their brains to others, refusing even the minimum effort to understand, probably because they do not have th...

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