Date   
Re: The YouLoop antenna is on sale #announcements

dave_bunyan
 

Thanks for comments "Prog"

My comment on "reduced noise compared to a log wire". On first testing my loop out in the garden it was - where did all those signals come from ??? "80m and 40m are alive!"  And as I've already said excellent MW DX - best so far is good signals from S Korea and Tiwan at 900 km (5600 miles). And during to 2019 SpE season it gave much better results than 70 MHz dipole when receiving the Eastern European OIRT band (66-74 MHz). And it is really good on the Bnd - apart fom being wide angle bi-directional.

Pre-amp gain of about 20 dB is about right - I have to use a 10 dB attenuator to avoid putting too much signal into the SDR. But at around £6 inc. for a ready made board it was the simplest option.

David

Re: The YouLoop antenna is on sale #announcements

dave_bunyan
 

Re: what type of transformer material. I used Amidon BN73-202 PIG NOSE (binocular) transformer to wind a 1:1 balun this was the transformer mentioned in Everett Sharp's articles Got 10 for £5.95 on ebay, because it was all I could get. I tested 2:1 and 1:1 and found 1:1 best.


David 

Re: The YouLoop antenna is on sale #announcements

prog
 

Try a lower loss 1:1 transformer.

Re: The YouLoop antenna is on sale #announcements

Mike Bott
 
Edited

I'll try it out tonight for The Mighty KBC on 5960 at 00:00utc.  The unboxing pics can be found here: https://www.dropbox.com/sh/wutp55i1r66qutp/AABBfAodYelxrQ_vVQjEXs2ca?dl=0   Hope conditions are decent tonight.

I'll keep the above link active for the next week or so, 

--
Mike


On 3/20/20 12:39 PM, Curt Faulk wrote:
Mike:

Of course, many of us out here will be very interested in your early reports on how it performs.

Re: The YouLoop antenna is on sale #announcements

Mark Pettifor
 

Thinking of building my own, with some RG213 I have. I have a few of these transformers on hand, but I'm wondering if the loss is too high for this loop design (they are better I think for much larger loops, like outdoor superloop-type antennas):

https://www.minicircuits.com/pdfs/T16-6T-X65.pdf

Thoughts?

Best regards,
Mark Pettifor

Re: The YouLoop antenna is on sale #announcements

prog
 

Is it suitable for outdoor installation?
It's basically about waterproofing the SMA connectors. Waterproofing tape should be enough for permanent outdoors installation.

Is it rigid enough to hold it's shape symmetrically, or would you suggest taping it to a suitably sized plastic hula hoop (65 cm would do it).
Yes, it's rigid enough.

Would you consider offering an option for a larger loop?
Why not? I can replace the two 1m legs with 2m ones.

with a cheap 30dB preamp from ebay it works really well
Leif SM5BSZ demonstrated a nice video with this antenna about 3 years ago. One interesting aspect is the reduced response to wide band noise compared to a long wire antenna. A simple FET preamp can help the reception dramatically when the loop is used with "standard" HF receivers with high NF. The preamp he built has about 20 dB of gain.
Check this video : https://www.youtube.com/watch?v=MNfc09SwwX8

Re: inmarsat EGC data via Airspy R2

michael.heinemann.fehmarn@...
 

Moin, irgendwie kommen meine mails an dich immer zurück.

magst du mich nochmal kontakten? (offlist)

Dann eventuell Phone.

M.

Am 12.03.2020 um 09:06 schrieb fly.fechter@...:

Hallo,
I currently receive via JAERO and SDRsharp the inmarsat AERO data. 
Is it possible-adviseable to add another SDRsharp onto my notebook, running via this second SDRsharp
the EGC data processed by the Tekmanoid professional inmarsat decoder ?
Do I have to install this second SDRsharp in a different separate folder to avoid any data confusion ?
I do NOT intend to run both SDRsharps at the same time - I Just to be able to get AERO some time, stop this  and then activate my second SDRsharp installation for the EGC data.
Thanks in advance for your kind help.
Regards,
Roland    

Re: The YouLoop antenna is on sale #announcements

dave_bunyan
 

A couple of questions - which could be answered on your presentation page. Is it suitable for outdoor installation? Is it rigid enough to hold it's shape symmetrically, or would you suggest taping it to a suitably sized plastic hula hoop (65 cm would do it). Would you consider offering an option for a larger loop?

For info: I've built a 1.2 m diameter loop based on the george smart article. It's not the mobius version of his design, but with a cheap 30dB preamp from ebay it works really well. After a life-time of wanting to received North American MW stations and never succeeding in a noisy urban environment I can now get VOCM 590, WOR 710, WBBR 1130 on a regular basis. Not usually at good strengths but amazing for a small antenna. So I'd love to try a mobius version and you done all the hard work with the balun and phasing unit.

Re: Live Linux distro #airspydiscovery

jdow
 

What do you see when you plug the disk in with another OS install up and running? If you see a lot of files it probably should work. If you see one file with a name that is the same as the file you burned you did it wrong. Study how to burn an ISO image with the tool you have available. Ask google.
{^_^}

On 20200320 10:57:21, michaeld wrote:
Yes, I had the same issue, says it is not a bootable ISO.
On Fri, Mar 20, 2020 at 8:04 AM Kai <needconnection@... <mailto:needconnection@...>> wrote:
I was looking forward to using this on an older laptop with no HDD, but
I haven't had any luck burning the ISO yet.
Tried downloading with different browsers on different operating
systems, burning to different thumb drives and using different thumb
drive file types, with all the above I get an error that the process
can't be complete.
Anyone have similar problems?
On 17/03/2020 4:17 pm, Shirley Dulcey KE1L wrote:
> I just looked for it. The correct name appears to be SDRLive. But the
> URL still uses the old linuxsdr name.
> https://sourceforge.net/projects/linuxsdr/
>
> On Mon, Mar 16, 2020 at 11:04 PM Gregory Schippers <kc8hxo2@...
<mailto:kc8hxo2@...>
> <mailto:kc8hxo2@... <mailto:kc8hxo2@...>>> wrote:
>
>     Now renamed SDRLinux, the author has a new version. I can confirm
>     operation OOTB operation with my HF+ Discovery using GQRX, CubicSDR,
>     and SDR Angel, and that's with the live DVD!  quite impressed.
>     Greg, KC8HXO
>
>

Re: The YouLoop antenna is on sale #announcements

dave_bunyan
 

If you can manage a little bit of home construction the 30dB LNA boards on ebay that go for a few dollars work extremely well with a 1.2 m magnetic shielded loop I built a couple of years ago. I just added a 470uH (or 1 mH) axial choke between the rf out and +Vcc for line powering. The board to go for is the one with the round LNA chip. It's worth a go - it should be well under $10. Of course you have to have something to send 12 volts up the coax. I had a 12v/1A linear wall wart so built a really simple DC injector as 'googled'.

Re: MW antenna for RTL-SDR V3

Zacharias Liangas
 

Hello
Just my proposals :
There is the AN200 tuned loop antenna for MW that does great work for portable radios. I tested it once to my RSp1a that didnt work as expected because the design of digital DSPs  is very different It is very cheap from Hong Kong via Anon Co with 14USD plus shipping
You can see on how it works in my YouTube page  https://www.youtube.com/playlist?list=PL12803A0C1E2082A4

For wide band SDP  receivers as the RTLSDR ,SDRPlay or Airspy etc you can use the new Youloop from Airspy . https://airspy.com/youloop
or even the new 'legendary' loop MLA30 that uses a inbuilt preamp   in around 25-40Eu  available from ebay https://www.ebay.com/itm/383162242361
hope that it helps !

Re: MW antenna for RTL-SDR V3

Willi Rauschenberg
 

Where is Your QTH!

Viele Gruesse
Willi Rauschenberg


Am 21.03.2020 um 00:54 schrieb micron327 via Groups.Io <micron327@...>:

I bought an RTL-SDR V3 last summer and have been having a blast on HF and VHF. I'm not very interested in satellite or UHF. I do enjoy MW DXing and SWL. My antennas do great on HF so SWL is great. My question: Is anyone making a decent MW loop antenna that doesn't cost an arm and a leg. I'm a 40% disabled Veteran and of course finances aren't that great so my budget is pretty limited. I'd love to be able to afford a Wellbrook but reality dictates otherwise. I have been involved in radio for the last 60 years and I enjoy it even more now that I'm semi-retired have more time to listen. My radios (at least the ones in working condition) DX-440, PL-600, PL-380, WRX-911 and a few vintage transistor mass market types.

MW antenna for RTL-SDR V3

Ron Layton
 

I bought an RTL-SDR V3 last summer and have been having a blast on HF and VHF. I'm not very interested in satellite or UHF. I do enjoy MW DXing and SWL. My antennas do great on HF so SWL is great. My question: Is anyone making a decent MW loop antenna that doesn't cost an arm and a leg. I'm a 40% disabled Veteran and of course finances aren't that great so my budget is pretty limited. I'd love to be able to afford a Wellbrook but reality dictates otherwise. I have been involved in radio for the last 60 years and I enjoy it even more now that I'm semi-retired have more time to listen. My radios (at least the ones in working condition) DX-440, PL-600, PL-380, WRX-911 and a few vintage transistor mass market types.

Re: The YouLoop antenna is on sale #announcements

WA8RVD
 

Got mine today!  It works quite well!   Much better than the 40cm loop that I built.

Re: Live Linux distro #airspydiscovery

michaeld
 

Yes, I had the same issue, says it is not a bootable ISO.


On Fri, Mar 20, 2020 at 8:04 AM Kai <needconnection@...> wrote:
I was looking forward to using this on an older laptop with no HDD, but
I haven't had any luck burning the ISO yet.

Tried downloading with different browsers on different operating
systems, burning to different thumb drives and using different thumb
drive file types, with all the above I get an error that the process
can't be complete.

Anyone have similar problems?

On 17/03/2020 4:17 pm, Shirley Dulcey KE1L wrote:
> I just looked for it. The correct name appears to be SDRLive. But the
> URL still uses the old linuxsdr name.
> https://sourceforge.net/projects/linuxsdr/
>
> On Mon, Mar 16, 2020 at 11:04 PM Gregory Schippers <kc8hxo2@...
> <mailto:kc8hxo2@...>> wrote:
>
>     Now renamed SDRLinux, the author has a new version. I can confirm
>     operation OOTB operation with my HF+ Discovery using GQRX, CubicSDR,
>     and SDR Angel, and that's with the live DVD!  quite impressed.
>     Greg, KC8HXO
>
>



Re: The YouLoop antenna is on sale #announcements

Troy - K4JDA
 

Whats the best low noise pre-amp to use?

Re: The YouLoop antenna is on sale #announcements

Curt Faulk
 

Mike:

Of course, many of us out here will be very interested in your early reports on how it performs.

Re: The YouLoop antenna is on sale #announcements

Mike Bott
 

Mine should arrive tomorrow.  Woohoo!

Thanks!

--
Mike

On 3/20/20 8:04 AM, prog wrote:
We finally managed to get a few hundreds YouLoop units built professionally and shipped to our US distributor as well as RTL-SDR Blog's store. Most of them were already reserved, and we are building a few more. The presentation page is still a "work-in-progress", and we want it as extensive as possible so this development can be useful for the experimenters. I will add more sections based on the feedback we get and the comments in this mailing list.

Shop at AirspyUS: https://v3.airspy.us/product/ant-youloop-1/
Shop at RTL-SDR Blog: https://www.rtl-sdr.com/tag/shop/

- OR -

Build one by yourself: https://airspy.com/youloop


The YouLoop antenna is on sale #announcements

prog
 

We finally managed to get a few hundreds YouLoop units built professionally and shipped to our US distributor as well as RTL-SDR Blog's store. Most of them were already reserved, and we are building a few more. The presentation page is still a "work-in-progress", and we want it as extensive as possible so this development can be useful for the experimenters. I will add more sections based on the feedback we get and the comments in this mailing list.

Shop at AirspyUS: https://v3.airspy.us/product/ant-youloop-1/
Shop at RTL-SDR Blog: https://www.rtl-sdr.com/tag/shop/

- OR -

Build one by yourself: https://airspy.com/youloop

Re: Live Linux distro #airspydiscovery

Kai
 

I was looking forward to using this on an older laptop with no HDD, but I haven't had any luck burning the ISO yet.

Tried downloading with different browsers on different operating systems, burning to different thumb drives and using different thumb drive file types, with all the above I get an error that the process can't be complete.

Anyone have similar problems?

On 17/03/2020 4:17 pm, Shirley Dulcey KE1L wrote:
I just looked for it. The correct name appears to be SDRLive. But the URL still uses the old linuxsdr name. https://sourceforge.net/projects/linuxsdr/
On Mon, Mar 16, 2020 at 11:04 PM Gregory Schippers <kc8hxo2@... <mailto:kc8hxo2@...>> wrote:
Now renamed SDRLinux, the author has a new version. I can confirm
operation OOTB operation with my HF+ Discovery using GQRX, CubicSDR,
and SDR Angel, and that's with the live DVD!  quite impressed.
Greg, KC8HXO