Search found 318 matches

by Mike2459
Wed Jul 10, 2019 6:23 am
Forum: General
Topic: hdsdr?
Replies: 2
Views: 535

Re: hdsdr?

Just guessing but maybe if u uncheck ''Enable Tuner AGC '' and try to adjust.

RF gain at 3 mostly
by Mike2459
Mon Jul 08, 2019 7:31 am
Forum: SDR Antennas
Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Replies: 59
Views: 5401

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

Glovisol: You must be a fast reader and learner. To go through all of that material and come to a definitive conclusion so quickly, is simply amazing. Color me impressed. And I thought the IEEE was a respected organization. To top it off they have the gall to claim to have the top 38 out of 40 journ...
by Mike2459
Mon Jul 08, 2019 4:52 am
Forum: SDR Antennas
Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Replies: 59
Views: 5401

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

Phil are you sure about this: n the real world the circuit would not work as a ground plane at all, as sdrom33 pointed out it doesn't even have one. I can see in Lankfort's schematic a very good ground plane - that 4 to 8 foot long copper coated earth ground - the best ground plane you can find with...
by Mike2459
Mon Jul 08, 2019 3:22 am
Forum: SDR Antennas
Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Replies: 59
Views: 5401

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

Phil: Sounds likes your modeling software might not be up to the task. Is it the freeware version? Or maybe a case of GIGO. I you get a chance take a look at this: Optimizing the Receiving Properties of Electrically Small HF Antennas by Steven R Best Link to pdf at IEEE Explore: https://www.google.c...
by Mike2459
Sun Jul 07, 2019 11:39 pm
Forum: SDRplay related
Topic: Bias tee
Replies: 8
Views: 860

Re: Bias tee

I don't own an RSP1A either, but here is a screenshot from the 1.31 Users Manual.
RSP 1A Main.JPG
RSP 1A Main.JPG (40.25 KiB) Viewed 714 times

It can be found in the Options list in the Main panel.

Mike
by Mike2459
Fri Jul 05, 2019 3:04 am
Forum: SDR Antennas
Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Replies: 59
Views: 5401

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

Phil: I think Lankford's 'noise reducing' design refers to the use of a 1) a ground rod at the antenna and 2) a balanced transmission line magnetically coupled at both ends. He uses this in several of his other designs. Some of his other stuff can be found here: https://www.okdxf.eu/index.php/techni...
by Mike2459
Thu Jul 04, 2019 9:01 pm
Forum: SDRuno
Topic: Audio stuttering despite low CPU
Replies: 11
Views: 1278

Re: Audio stuttering despite low CPU

Using Windows resource monitor check the CPU usage of audiodg.exe. Here's a screenshot:
audiodg.jpg
audiodg.jpg (149.42 KiB) Viewed 228 times
It should be showing very low or zero cpu usage, if it doesn't it could indicate driver or other problems.
by Mike2459
Tue Jul 02, 2019 2:56 am
Forum: Spectrum Analysis
Topic: Windows XP Compat
Replies: 4
Views: 837

Re: Windows XP Compat

And, by the way. I hope you don't have your XP machine connected to the internet.

From Oct 29th 2013:
https://www.zdnet.com/article/microsoft ... -xp-users/
by Mike2459
Tue Jul 02, 2019 2:12 am
Forum: Spectrum Analysis
Topic: Windows XP Compat
Replies: 4
Views: 837

Re: Windows XP Compat

This can happen when the executable's installation is corrupted by a disk write error or some other source of corruption (such as malware).
by Mike2459
Fri Jun 28, 2019 2:34 pm
Forum: SDRuno
Topic: Audio stuttering despite low CPU
Replies: 11
Views: 1278

Re: Audio stuttering despite low CPU

I just found that the stuttering stops when running the laptop from its PSU ... This is suggestive of a power management issue. Even though PM is set to high performance there may be some settings that are still causing problems. You can experiment with these settings, On my laptop there are separa...