Date   

Loggings - 16/08/2021 - ULDXIndex

Paul Blundell
 

Time = 10:30pm
Radio = Digitech AR-1733 + 3" FSL

-------------------------
**MWDxerDB - Report**
Report Date: 08/17/2021
Report Time: 10:22:29
-------------------------

Freq / Name: 0729 - 5RN
Details: Adelaide - National - 50000w - 1030km 
Notes: 16/08/2021 - ULDXIndex = 0.0618 

Freq / Name: 0783 - 8AL
Details: Alice Springs - National - 2000w - 2315km
Notes: 16/08/2021 - ULDXIndex =1.6205 

Freq / Name: 0891 - 5AN
Details: Adelaide - National - 50000w - 1030km 
Notes: 16/08/2021 - ULDXIndex = 0.0618

Freq / Name: 1098 - 2RN
Details: Goulburn - National - 200w - 775km
Notes: 16/08/2021 - ULDXIndex = 7.3625 

Freq / Name: 1548 - 4QD
Details: Emerald - National - 50000w - 1996km
Notes: 16/08/2021 - ULDXIndex = 0.095808 

Freq / Name: 1566 - 3NE
Details: Wangaratta - Commercial - 5000w - 572km
Notes: 16/08/2021 - ULDXIndex = 0.3432 


Re: XHDATA D-808 external antenna jack question

Jim Townley
 

zliangas,
Thank you for the info. I ended up making a coupling unit from a ferrite rod and  some turns of litz wire with a female 3.5mm jack, so I can plug my active loops into it. I also have a 7" ferrite sleeve loop that the D-808 will couple with nicely. I am excited to use the new radio. I wonder why they don't equip them to accept an external antenna for MW? It doesn't seem like that would add much, if anything to the cost. Thanks again for your advice.
--
73,
Jim Townley
Chisholm, MN


Extended DX Project - 13/08/2021 - Hobart

Paul Blundell
 

Time = 2:15pm
Location = Granton Park, Hobart
Radio = Digitech AR-1733

-------------------------
**MWDxerDB - Report**
Report Date: 08/16/2021
Report Time: 10:50:54
-------------------------

Freq / Name: 0531 - 3GG
Details: Warragul - Commercial - 5000w - 384km 
Notes: 13/08/2021 - ULDXIndex = 0.14952

Freq / Name: 0549 - 2CR
Details: Cumnock - National - 50000w - 954km 
Notes: 13/08/2021 - ULDXIndex = 0.024288 

Freq / Name: 0621 - 3RN
Details: Melbourne - National - 50000w - 459km 
Notes: 13/08/2021 - ULDXIndex = 0.023142 

Freq / Name: 0693 - 3AW
Details: Melbourne - Commercial - 5000w - 458km
Notes: 13/08/2021 - ULDXIndex = 0.168

Freq / Name: 0774 - 3LO
Details: Melbourne - National - 50000w - 459km 
Notes: 13/08/2021 - ULDXIndex = 0.0228 

Freq / Name: 0828 - 3GI
Details: Sale - National - 10000w - 360km
Notes: 13/08/2021 - ULDXIndex = 0.084

Freq / Name: 0855 - 3CR
Details: Melbourne - Community - 3500w - 446km 
Notes: 13/08/2021 - ULDXIndex = 0.244

Freq / Name: 0891 - 5AN
Details: Adelaide - National - 50000w - 1030km 
Notes: 13/08/2021 - ULDXIndex = 0.02596

Freq / Name: 1341 - HPON GEELONG
Details: Geelong - HPON - 5000w - 429km
Notes: 13/08/2021 - ULDXIndex = 0.1596 

Freq / Name: 1422 - HPON MELBOURNE
Details: Melbourne - HPON - 5000w - 449km
Notes: 13/08/2021 - ULDXIndex = 0.16772


 




Re: XHDATA D-808 external antenna jack question

Zacharias Liangas
 

Αquite simpler idea is to find theAN200 tuned passive loop  antenna from tecsun which can do good job by adding up to 30db across the MW band in the tuned frequency
Just 20 usd


Re: NRC ARL-42 Pre orders have shipped

Wayne Heinen <amlog@...>
 

David – That’s what you get for being at the start of the alphabet! After overseas and multiple books they’re in alphabetical order… Enjoy it!

 

73

 

Wayne Heinen N0POH

Editor

NRC AM Radio Log

Aurora, CO

 

 

 

From: main@UltralightDX.groups.io <main@UltralightDX.groups.io> On Behalf Of David Alpert
Sent: Saturday, August 14, 2021 7:07 PM
To: main@UltralightDX.groups.io
Subject: Re: [UltralightDX] NRC ARL-42 Pre orders have shipped

 

Received mine today.

- DRA

David R. Alpert
dra@...
Twitter:@DaveAlpert

www.linkedin.com/in/david-alpert-radionews


Re: NRC ARL-42 Pre orders have shipped

David Alpert
 

Received mine today.

- DRA

David R. Alpert
dra@...
Twitter:@DaveAlpert
www.linkedin.com/in/david-alpert-radionews


Re: XHDATA D-808 external antenna jack question

Gary DeBock
 

On Sat, Aug 14, 2021 at 03:31 AM, Alfredo Gallerati wrote:
Ok Gary, this was yust a doubt which some friends of mine told me.
Concerning the FSL Antenna, can you tell me please if I can buy that antenna
from you ?
Best greetings and regards
73’s de Alfredo Gallerati, IK7JGI
Hello Alfredo,

Unfortunately I don't have enough free time to build and sell FSL antennas for all who want one, so it is not possible for me to run a business selling them. There is a waiting list, but it is already stretching into 2022. In order to help reduce the high demand for the 3 inch (76mm) Baby FSL antenna I am writing a full construction article, giving complete information on how to construct the antenna using readily available commercial parts. Even if a DXer doesn't wish to build his own FSL antenna, the article will be simple enough so that any friend with technical experience should be able to build it.

The 7.5 inch (19cm) loopstick XHDATA D-808 model is another project with extremely high demand, which I cannot satisfy with my own limited free time. That model has already had a full construction article posted since 2018, though, at https://dreamcrafts.box.com/s/5d0pi85jfptgmrj4pd0jsmaybgb6gteh
 
73, Gary DeBock (in Puyallup, WA, USA)

 


NRC ARL-42 Pre orders have shipped

Wayne Heinen <amlog@...>
 

Hi all

 

I just watched the mailman pick up the last of the pre-ordered ARL-42's. Domestic orders should be delivered by the end of this coming week.  Overseas orders take 6 to 10 working days. If you need to order a Log visit https://nationalradioclub.org/ and look under the Publication Center tab & select the Books & DX Tools page.  73 all & let's hope for a happy healthy and productive 2021 -2022 DX Season!

 

73

 

Wayne Heinen N0POH

Editor

NRC AM Radio Log

Aurora, CO

 

 


Re: XHDATA D-808 external antenna jack question

Alfredo Gallerati
 

Ok Gary, this was yust a doubt which some friends of mine told me.
Concerning the FSL Antenna, can you tell me please if I can buy that antenna
from you ?
Best greetings and regards
73’s de Alfredo Gallerati, IK7JGI
 
========================================================================
 

From: Gary DeBock via groups.io
Sent: Saturday, August 14, 2021 10:13 AM
To: main@UltralightDX.groups.io
Subject: Re: [UltralightDX] XHDATA D-808 external antenna jack question
 
On Thu, Aug 12, 2021 at 10:49 PM, Jim Townley wrote:
I just ordered the XHDATA D-808 and later observed a few posts which indicated that the external antenna jack is for all bands except MW. I downloaded a recent PDF of the manual, which states that the external antenna jack is for mw sw fm and the air band. Is this something that they updated at some point in the production, or an error in the manual? Will I have to modify the radio to enhance mw reception with an external antenna?
Thank you in advance,
Jim
Hi Jim,

I have traced out the circuit connections from the XHDATA D-808 antenna jack, and can confirm that the connections are only for FM and Shortwave (see attached photo). The whip antenna lead is connected to the ANT jack's inner lead, which both go to the FM-SW circuitry. Unlike the whip antenna lead the ANT jack has a ground connection, though, so this may be useful for certain types of FM-SW antennas.

For MW sensitivity boosting your best option by far would be to use your 7" FSL antenna with inductive coupling, although the 7.5" MW loopstick transplant would also "smoke" the stock model in MW-DXing sensitivity.

73, Gary DeBock (in Puyallup, WA, USA)


Re: XHDATA D-808 external antenna jack question

Jim Townley
 

Gary, Thank you for the information. I'll have to dig into your material on that MW Loopstick. The FSL is still one of my favorite MW antennas.  
--
73,
Jim Townley
Chisholm, MN


Re: XHDATA D-808 external antenna jack question

Gary DeBock
 

On Thu, Aug 12, 2021 at 10:49 PM, Jim Townley wrote:
I just ordered the XHDATA D-808 and later observed a few posts which indicated that the external antenna jack is for all bands except MW. I downloaded a recent PDF of the manual, which states that the external antenna jack is for mw sw fm and the air band. Is this something that they updated at some point in the production, or an error in the manual? Will I have to modify the radio to enhance mw reception with an external antenna?
Thank you in advance,
Jim
Hi Jim,

I have traced out the circuit connections from the XHDATA D-808 antenna jack, and can confirm that the connections are only for FM and Shortwave (see attached photo). The whip antenna lead is connected to the ANT jack's inner lead, which both go to the FM-SW circuitry. Unlike the whip antenna lead the ANT jack has a ground connection, though, so this may be useful for certain types of FM-SW antennas.

For MW sensitivity boosting your best option by far would be to use your 7" FSL antenna with inductive coupling, although the 7.5" MW loopstick transplant would also "smoke" the stock model in MW-DXing sensitivity.

73, Gary DeBock (in Puyallup, WA, USA)


Re: Ultralight Radio with Youloop

Robert Conboy
 

I have used the Airspy Youloop to couple a larger broadband antenna TO a radio that has an internal loopstick, and it worked well as a coupler.

The Youloop in its intended use as an antenna, outputs at a very low level, but it rejects locally generated noise very well. It is a surprisingly good broadband antenna for an SDR that has wide dynamic range (low noise floor).


On Aug 13, 2021, at 9:49 AM, Mike Wolfson <nwhkr319@...> wrote:


Thanks. Saw the recent video.  Did not know about the comments.  Interesting comment from Prog.  The description on the Airspy page makes reference to being designed with the HF+ in mind but lacks detail 9r a more complete explanation.

Mike

On Fri, Aug 13, 2021, 6:03 AM Grant Porter <grantbob@...> wrote:
I was watching this https://www.youtube.com/watch?v=Y3pEdw1c358 a day or so ago where Kevin was building his own youloop as well as trying out one of the  knockoffs. There's some comments from the designer of the youloop in the comments (if you dare to wade through YouTube comments):

prog' :  @Kevin Loughin  Here's a small list: The transmission line can de-tune the loop if too long - the original one must be used, The bandwidth and insertion loss of the transformer can deteriorate the SNR, The capacitance between the core and the shield of the cables must be accurate because it's used to tune the loop, If using an old HF+ the part marked R3 must be shorted, If a short transmission line is not possible, a preamp should be added after the Tee component - preferably a single-ended High Z preamp.\
@Kevin Loughin  No, it's not narrow band, and it's not Low Z. Check this video to understand the difference: https://www.youtube.com/watch?v=MNfc09SwwX8 So, this antenna was designed specifically for the HF+ Discovery. Any radio capable of MDS below -140 dBm would work, but there aren't that many. The Discovery knows how to "tune it" because it has the circuitry for it. Other radios may not be suitable. And btw, we supply a 2m RG402 coax with the genuine build. The Chinese don't necessarily know why and they replaced it with whatever they had in hand that is cheaper than RG402. I believe you were a collateral victim of this negligence. For the theory of operation, you can check the archives of our mailing list. Things started in 2017.
Sounds like it might not be the best match for most portables without some fiddling.
-Grant


Re: Ultralight Radio with Youloop

Mike Wolfson <nwhkr319@...>
 

Thanks. Saw the recent video.  Did not know about the comments.  Interesting comment from Prog.  The description on the Airspy page makes reference to being designed with the HF+ in mind but lacks detail 9r a more complete explanation.

Mike

On Fri, Aug 13, 2021, 6:03 AM Grant Porter <grantbob@...> wrote:
I was watching this https://www.youtube.com/watch?v=Y3pEdw1c358 a day or so ago where Kevin was building his own youloop as well as trying out one of the  knockoffs. There's some comments from the designer of the youloop in the comments (if you dare to wade through YouTube comments):

prog' :  @Kevin Loughin  Here's a small list: The transmission line can de-tune the loop if too long - the original one must be used, The bandwidth and insertion loss of the transformer can deteriorate the SNR, The capacitance between the core and the shield of the cables must be accurate because it's used to tune the loop, If using an old HF+ the part marked R3 must be shorted, If a short transmission line is not possible, a preamp should be added after the Tee component - preferably a single-ended High Z preamp.\
@Kevin Loughin  No, it's not narrow band, and it's not Low Z. Check this video to understand the difference: https://www.youtube.com/watch?v=MNfc09SwwX8 So, this antenna was designed specifically for the HF+ Discovery. Any radio capable of MDS below -140 dBm would work, but there aren't that many. The Discovery knows how to "tune it" because it has the circuitry for it. Other radios may not be suitable. And btw, we supply a 2m RG402 coax with the genuine build. The Chinese don't necessarily know why and they replaced it with whatever they had in hand that is cheaper than RG402. I believe you were a collateral victim of this negligence. For the theory of operation, you can check the archives of our mailing list. Things started in 2017.
Sounds like it might not be the best match for most portables without some fiddling.
-Grant


Re: Ultralight Radio with Youloop

Grant Porter
 

I was watching this https://www.youtube.com/watch?v=Y3pEdw1c358 a day or so ago where Kevin was building his own youloop as well as trying out one of the  knockoffs. There's some comments from the designer of the youloop in the comments (if you dare to wade through YouTube comments):

prog' :  @Kevin Loughin  Here's a small list: The transmission line can de-tune the loop if too long - the original one must be used, The bandwidth and insertion loss of the transformer can deteriorate the SNR, The capacitance between the core and the shield of the cables must be accurate because it's used to tune the loop, If using an old HF+ the part marked R3 must be shorted, If a short transmission line is not possible, a preamp should be added after the Tee component - preferably a single-ended High Z preamp.\
@Kevin Loughin  No, it's not narrow band, and it's not Low Z. Check this video to understand the difference: https://www.youtube.com/watch?v=MNfc09SwwX8 So, this antenna was designed specifically for the HF+ Discovery. Any radio capable of MDS below -140 dBm would work, but there aren't that many. The Discovery knows how to "tune it" because it has the circuitry for it. Other radios may not be suitable. And btw, we supply a 2m RG402 coax with the genuine build. The Chinese don't necessarily know why and they replaced it with whatever they had in hand that is cheaper than RG402. I believe you were a collateral victim of this negligence. For the theory of operation, you can check the archives of our mailing list. Things started in 2017.
Sounds like it might not be the best match for most portables without some fiddling.
-Grant


Re: Air Band Receivers

DX Pedro
 

Many thanks for this. This helps a lot!

On Fri, 30 Jul 2021 at 13:51 Dave613 <david.elden.613@...> wrote:
airnav covers a limited list of countries, a more world-wide site is skyvector, e.g. https://skyvector.com/airports/Portugal
Skyvector includes charts as well of course which are useful for air band monitoring (location of navaids, waypoints etc)
Dave.

--
// pedro andrade


XHDATA D-808 external antenna jack question

Jim Townley
 

I just ordered the XHDATA D-808 and later observed a few posts which indicated that the external antenna jack is for all bands except MW. I downloaded a recent PDF of the manual, which states that the external antenna jack is for mw sw fm and the air band. Is this something that they updated at some point in the production, or an error in the manual? Will I have to modify the radio to enhance mw reception with an external antenna?
Thank you in advance,
Jim


Re: 585-2WEB (Outback Radio) at 7,672 miles (12,347 km)

Gary DeBock
 

On Thu, Aug 12, 2021 at 07:28 PM, Paul Blundell wrote:
Nice logging Gary. 
 
As 7RN is "local" for me, I struggle to hear 2WEB.
Actually 7RN is the South Pacific station that we hear 90% of the time here also, Paul.
About 4% of the time 2WEB is all alone on the frequency, and once in a blue moon the underperforming Kiwi Maori station (Radio Ngati Porou) is strong enough to check the parallel with 603 or 765 kHz.

Gary


Re: xhdata d808 mods and hidden features

Gary DeBock
 

On Thu, Aug 12, 2021 at 01:49 PM, <zliangas@...> wrote:
Can this design operate in both MW and Lw?
The construction article gives full information for building either an AM (Medium Wave) or Longwave-optimized loopstick, but even if you choose the AM (MW-optimized) loopstick, it will still boost Longwave sensitivity far past that of the stock model.

Gary


Re: 2021 Ultralight Radio Shootout Review Ready for Download

Mike Wolfson <nwhkr319@...>
 

Thanks for the comments


On Thu, Aug 12, 2021, 6:40 PM Paul S. in CT <dxrx@...> wrote:
Mike, I agree quite a bit with what you wrote, I would look at the Skywave as a better all-round DXer, but the PL-330 has USB/LSB for about the same coin. A trade-off for sure, but function vs. DX has been about the only one 'acceptable'. And for $50, a R9012/R909 with the AN200 passive loop isn't too shabby on AM either.

Regards
Paul S. in CT FN31nl






Re: 585-2WEB (Outback Radio) at 7,672 miles (12,347 km)

Paul Blundell
 

Nice logging Gary. 

As 7RN is "local" for me, I struggle to hear 2WEB.

On Fri, Aug 13, 2021 at 12:13 PM Gary DeBock via groups.io <D1028Gary=aol.com@groups.io> wrote:
Ultralight group member David Sharp is the Breakfast Show announcer on 585-2WEB, a 10 kW station in Bourke, Australia. He shocked me about 10 years ago when I complained on the Ultralight list about the "dumb Australian rock station on 585 kHz that never ID's," sending me an e-QSL after matching my rock music MP3 recording with his song log.

David would have enjoyed listening to 2WEB's rocking signal across 12,347 km of ocean at the Rockwork 4 cliff on Thursday, August 5th, complete with a female-voiced ID and two S9 peaks during pop songs. Rock on, Dave!

585-2WEB   Apparent lottery numbers and female-voiced ID at 1306 on 8-5  https://dreamcrafts.box.com/s/146jmuf608gfyholig7slsyrjfeggics

"Somewhere Over the Rainbow" somewhat above 7RN and the domestic splatter at 1240 on 8-5  https://dreamcrafts.box.com/s/1vcbgvcmeerluiw2b8c809oz9vd8dat7

"Tears of a Clown" hitting a nice peak at 1325 on 8-5  https://dreamcrafts.box.com/s/znqfd1fc7wmz4ajhf93jkhjjwir4hiaf

Gary DeBock (DXing at the Rockwork 4 ocean cliff near Manzanita, OR, USA)
7.5" loopstick CC Skywave  Ultralight + 8" (20cm) FSL antenna



--
Paul

841 - 860 of 32946