Search found 23 matches

by mike0agner
Thu Sep 05, 2019 12:12 am
Forum: SDR Antennas
Topic: Antenna Suitability
Replies: 6
Views: 7317

Re: Antenna Suitability

Some better results and advice would be had if we knew what it was you are interested in hearing. Better antenna + Better radio = Better results every time...Mike
by mike0agner
Tue Aug 13, 2019 1:52 am
Forum: General
Topic: For whomever is doing the videos in the apps catalog
Replies: 7
Views: 4932

Re: For whomever is doing the videos in the apps catalog

There appears to be some discussions ongoing with the new version of MultiPSK and the SDRPlays in the MultiPSK groups.io reflector...

https://groups.io/g/multipsk

Mike
by mike0agner
Sun Aug 11, 2019 11:52 am
Forum: General
Topic: For whomever is doing the videos in the apps catalog
Replies: 7
Views: 4932

For whomever is doing the videos in the apps catalog

MultiPSK now has a new option to support the SDRPlays - I believe it's using IQ data. It appears it needs a little setup for it to work properly. It would be a good topic to either update the existing video or cut a new one
by mike0agner
Tue Aug 06, 2019 9:05 pm
Forum: SDRuno
Topic: Digital modes within SDRUno?
Replies: 2
Views: 3293

Re: Digital modes within SDRUno?

The concept of a plug in is not new; SDR # uses it (in fact, they have an ADS-B plugin). Even a DDE type link to interface directly to MultiPSK would be better. As an example, I strongly suspect Win4IcomSuite does this with DM780. So there are ways to do it without having to use something like VB Ca...
by mike0agner
Tue Aug 06, 2019 1:09 am
Forum: SDRplay related
Topic: Front end protection during thunderstorm?
Replies: 7
Views: 5257

Re: Front end protection during thunderstorm?

Let's be real here - all of these devices will mitigate, but not prevent, damage from a thunderstorm. You really need to shut down, disconnect (and preferably ground, away from the home) your antenna feedline(s), disconnect any power supplies from your PC There's no way to actually prevent damage fr...
by mike0agner
Mon Aug 05, 2019 10:38 pm
Forum: General
Topic: Nearby strong AM broadcasting station
Replies: 10
Views: 7479

Re: Nearby strong AM broadcasting station

Using a quarter wave stub works fine on VHF, but on MW it's very long and unwieldy. Better to use a tunable notch, and I know of only 1 commercial unit...

http://www.scott-inc.com/html/notch.htm

Mike
by mike0agner
Sat Aug 03, 2019 1:48 am
Forum: General
Topic: Nearby strong AM broadcasting station
Replies: 10
Views: 7479

Re: Nearby strong AM broadcasting station

Mea Culpa. I thought you were tuning on HF, not MW and LW. Nevertheless, the Cross Country and MFJ-956 passive preselectors would be a better bet for you, rather than the other MFJ one. Many of the loops I have on that page really don't cover LW all that well; however I'm willing to bet the Longwave...
by mike0agner
Sat Aug 03, 2019 1:36 am
Forum: General
Topic: Nearby strong AM broadcasting station
Replies: 10
Views: 7479

Re: Nearby strong AM broadcasting station

Hi Chris. I'm sure you're not the only one to have to deal with a strong MW station within striking distance of your home. You have basically 2 options - install a filter or use a passive preselector which is much like a tunable filter. It will allow only a certain range of frequencies to pass while...
by mike0agner
Sat Jul 20, 2019 10:24 pm
Forum: SDRuno
Topic: Digital modes within SDRUno?
Replies: 2
Views: 3293

Digital modes within SDRUno?

This is probably a pie-in-the-sky thought, but what the hey - it would be nice to have some plug ins that can do digital decoding. Certainly use the various ham modes such as PSK31, Olivia, FT4 and 8, etc. as well as some of the non ham modes such as SITOR-B/NAVTEX, HFDL (with the ability to read th...
by mike0agner
Sat Jul 20, 2019 9:55 pm
Forum: General
Topic: BUILDING SELECTIVITY PROTECTION INTO THE RSP FRONT END IN LF/HF
Replies: 19
Views: 9185

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

Here are 2 passive preselectors - the first won't work below 1.6 Mhz, the other is much more broad banded...

http://www.mfjenterprises.com/Product.p ... d=MFJ-1046

http://www.crosscountrywireless.net/preselector.htm

Mike