Date   

Re: Digitech AR-1458 Review - Work In Progress

Dan Merta
 

Nice. I find tuning to 3GG sometimes it tunes it in and then after a few seconds it loses it and I have to tune it again. 
Also it's an interesting thing to listen to a night time skywave station and as it fades out the radio goes silent. Then as the signal comes back it locks back in again..
Next week covid permitting I'll be travelling up to Echuca so I'll see how it performs up there.
Dan. 


Re: Ultralight DX Challenge. News from Spain.

Jorge Garzón
 

The Ultralight DX Challenge is going on! Paul Logan has already achieve it in just 8 days, and I am now at 225 stations heard. I decided to listen to the band twice a day a couple of hours each as I am working and also love going bushwalking. 

We are still using the tag #ultralightdx in Twitter, and now there are three more people in the Challenge, from Germany, Spain and Portugal. Some people seem to have embraced the idea with interest! In my blog 'IberiaDX' I post daily to keep the records up-to-date. 

Something we talked Paul and me was to log stations to the end of the 30 days period in order to check how many stations could be heard (a kind of challenge extension). Hopefully we could even offer overall results as a kind of a "MW Listening Guide" for the time being. Perhaps a practise tool for newcomers? "What to hear on MW in autumn" (or so). 

Very funny and enriching activity! 
73!

--
Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


File Notifications #file-notice

main@UltralightDX.groups.io Notification <noreply@...>
 

The following files have been uploaded to the Files area of the main@UltralightDX.groups.io group.

By: Paul Blundell

Description:
Updated November 2020.


The following files have been uploaded to the Files area of the main@UltralightDX.groups.io group.

By: Paul Blundell

Description:
9kHz Log Sheet


Digitech AR-1458 Review - Work In Progress

Paul Blundell
 

I have recently purchased a Digitech AR-1458 and have written a review, I will be adding to this and updating it over the next few weeks.

https://ultralightradiodxing.blogspot.com/2020/11/digitech-ar-1458-review.html

Paul


Long Term DX Project - 18/10/2020

Paul Blundell
 

Date: 18/11/2020

 

Time: 7:00PM

Location: Home, Launceston Tasmania

Notes: A pre-sunset session at home. The three 50kw big guns were all logged at excellent signal levels. 3GG on 531kHz again hit excellent signal levels. 2CR on 549kHz struggled to be heard and was only barely heard at a weak signal level. As this session was a little earlier than in the past, the top half of the band struggled and signals were on the lower side.

 

 

FREQ

CALLSIGN

LOGGED

DATE

RADIO

AERIAL

531

3GG

EXCELLENT

18/11/2020

AR-1733

3" FSL

549

2CR

WEAK

18/11/2020

AR-1733

3" FSL

594

3WV

EXCELLENT

18/11/2020

AR-1733

3" FSL

621

3RN

EXCELLENT

18/11/2020

AR-1733

3" FSL

774

3LO

EXCELLENT

18/11/2020

AR-1733

3" FSL

1053

2CA

UNLOGGED

18/11/2020

AR-1733

3" FSL

1179

3RPH

WEAK

18/11/2020

AR-1733

3" FSL

1341

HPON GEELONG

AVERAGE

18/11/2020

AR-1733

3" FSL

1422

HPON MELBOURNE

AVERAGE

18/11/2020

AR-1733

3" FSL

1503

3KND

WEAK

18/11/2020

AR-1733

3" FSL


 


Re: Building a FSL antenna

Phil Pasteur
 
Edited

Sorry that I can't recommend where to get parts in Spain. I suppose ordering from the US would be too costly. I could find the place that I ordered the currently recommended variable capacitor if you would like. It is also documented in the forum here in a few places, including an alternate source.
I found this:
https://m0ukd.com/calculators/resonant-frequency-calculator-inductance-capacitance-lc-circuit/
You can play with values to see what should work. As Gary mentioned, he believes that there is some information on dual coil designs for covering both long wave and medium wave frequencies (in single or separate antennas) in the files/photos section here.
Though, those designs were for larger models of FSL IIRC.

BTW: I found a link to the place I bought the latest recommended air variable cap:
https://www.mikeselectronicparts.com/product/384pf-air-variable-capacitor-with-81-planetary-reduction-drive/


Phil


WNJC 1360 Maintenance & DX Test Tonight

Les Rayburn
 


Your CPC Chairman was working all day and well into the night—didn’t get this word out in time. Apologies. Hope everyone has a chance to tune in. Conditions on the car radio were great tonight. 

1360 kHz WNJC Washington Township, NJ


Once again, sorry for the late notice, but I am running an audio DX test on WNJC 1360AM till 6am EST (11:00 UTC). At Midnight EST (05:00 UTC) we will go to daytime power (5kw directional to the SSE). Next week I will try to get the FT8 test up and running again. Maybe try to do some omnidirectional testing as well!

Duke, kc2dux
CE of WNJC 1360 AM


73,

Les Rayburn, N1LF
121 Mayfair Park
Maylene, AL 35114
EM63nf

NRC & IRCA Courtesy Program Committee Chairman
Member WTFDA, MWC

Perseus SDR, Elad FDM-S2 SDR, AirSpy + Discovery, SDRPlay RSP-2 Pro, Sony XDR-F1HD [XDR Guy Modified], Dennon TU-1500RD, Sangean HDT-1X, Ray Dees RDS Decoders, Korner 9.2 Antenna, FM-6 Antenna, Kitz Technologies KT-501 Pre-amps, Quantum Phaser, Wellbrook ALA1530 Loop, Wellbrook Flag, Clifton Labs Active Whip. 

“Nothing but blues and Elvis, and somebody else’s favorite song…” 


Re: Digitech AR1458 AM FM transistor radio

Paul Blundell
 

Well I grabbed on of these today, I will report back on how it works for me.


On Sat., 14 Nov. 2020, 19:51 Paul Blundell via groups.io, <tanger32au=gmail.com@groups.io> wrote:
I am still interested in getting one of these, for the price it will be good to test out.

On Sat., 14 Nov. 2020, 13:28 Dan Merta, <dnmerta0@...> wrote:
Yes, It will most likely be handy to have a digital freq radio on hand to confirm stations received. 


Re: Building a FSL antenna

Gary DeBock
 

Dear Jorge (and all),

Thank you for your interest in FSL antenna construction and operation. A good introductory article for those DXers thinking about using an FSL antenna is posted at https://dxer.ca/articles/92-gary-debock

Since FSL antennas are not currently manufactured commercially, most DXers make their own. A guide to how different construction materials result in different gain performance is posted at https://dreamcrafts.box.com/s/mr7aec2o4fid5u4dc48xz0t6u9uto8xh

There are some specific FSL antenna designs for both Longwave and Medium Wave frequencies, or both. Some FSL antenna designs are posted in our photo section. There are also some construction articles posted in our file section for the 3.5 inch, 5 inch and 7 inch FSL antennas.

FSL antenna materials (especially multiple ferrite bars or rods) are relatively expensive in comparison to cheap wire antennas, so these antennas have always been relatively scarce. Their DXing performance is awesome for their compact size, however, which is why I always use them on ocean coast (and ocean cliff) DXpeditions. Most recently, a tiny 6 inch (15cm) diameter FSL model ran wild in long range Asian MW station reception on the Oregon coast. 

Gary DeBock (in Puyallup, WA, USA)




Re: Building a FSL antenna

Jorge Garzón
 

Thank you for your info Phil,
Yes, I have gone through Gary's documents which are clear and useful. Perhaps my choice will be the 3'5" model. My main doubt is regarding the variable capacitor. I am not sure how to find the right one here and also how to calculate the capacitance according to the frequency range wanted and antenna wide. 
Thanks again! 


Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


En sábado, 14 de noviembre de 2020 19:59:51 CET, Phil Pasteur <ppasteur@q.com> escribió:


Have you checked out any of the construction documents for the various sized FSL the Gary wrote? There are some of them in the files section here under "Antennas and Equipment" (I believe).
I think that there are others online as well. They will not answer some of your specific questions perhaps, but will give you ideas of what is known to work.

I am not sure about PVC. It depends on what kind you use. I have read that the white PVC is the best for coil forming, but it can be lossy at higher frequencies. It could influence the Q of the system. How much at MW? I haven't seen measurements.

With the recommended inductance and variable cap my 7" FSL does not tune much below 500 on the low end. I believe that some people have built multi coil FSLs to get the lower frequencies.
Not sure if I helped, but maybe gave you some ideas for further research.

I am sure that Gary or others here can add  much more info for you.

Phil


Re: New Tecsun PL-398

Marc Coevoet
 

Op 14/11/2020 om 21:53 schreef Marc Coevoet via groups.io:
- Tecsun 390
- Tecsun 390mp  the one with the mp3 player (not recorder!)
Tecsun 398mp is the real name ;-)



--
The "Penguin" has arrived - and he's not going away - ever.
For former Apple users: Xubuntu.org (menu's up left)
For former Windows users: Lubuntu.org (menu's down left)


Re: New Tecsun PL-398

Marc Coevoet
 

Op 14/06/2020 om 21:35 schreef Marc Coevoet:
Op 14/06/2020 om 19:48 schreef mariusz.dorota@gmail.com:
Is whip size on both radios the Same ?
pl 390 or 398: size must be around 90cm?
I replaced them with a 110cm!
Marc

For the interest of everyone, I posted some pictures of the inside of

- Tecsun 390
- Tecsun 390mp the one with the mp3 player (not recorder!)

Pictures start at,

https://www.flickr.com/photos/191037739@N02/50601395613/in/dateposted-public/

and I suppose you can see them and click forward. The tuners are part of my collection, most are for sale!

I just became a member of flickr for its publishing of full resolution pictures!


Marc
--
The "Penguin" has arrived - and he's not going away - ever.
For former Apple users: Xubuntu.org (menu's up left)
For former Windows users: Lubuntu.org (menu's down left)


Re: Building a FSL antenna

Paul Blundell
 

It is great to see you are keen to do this. Gary is without a doubt the expert and can answer these questions with the most experience.


On Sun., 15 Nov. 2020, 05:59 Phil Pasteur, <ppasteur@q.com> wrote:
Have you checked out any of the construction documents for the various sized FSL the Gary wrote? There are some of them in the files section here under "Antennas and Equipment" (I believe).
I think that there are others online as well. They will not answer some of your specific questions perhaps, but will give you ideas of what is known to work.

I am not sure about PVC. It depends on what kind you use. I have read that the white PVC is the best for coil forming, but it can be lossy at higher frequencies. It could influence the Q of the system. How much at MW? I haven't seen measurements.

With the recommended inductance and variable cap my 7" FSL does not tune much below 500 on the low end. I believe that some people have built multi coil FSLs to get the lower frequencies.
Not sure if I helped, but maybe gave you some ideas for further research.

I am sure that Gary or others here can add  much more info for you.

Phil


Re: Ultralight DX Challenge. News from Spain.

Paul Blundell
 

Those are great results, thanks for sharing this.


On Sun., 15 Nov. 2020, 00:36 Jorge Garzón via groups.io, <iberiaDX=yahoo.com@groups.io> wrote:
Well, after my 4th day of listening I can tell you that I am enjoying the Challenge very much with a kinda of DXing 'revival', remembering the old days... I am posting daily here: https://iberiadx.wordpress.com/the-ultralight-dx-challenge-2020/ in Spanish in case you want to practice the language or even translate it with Google (not a real teacher though!).
 
I am using for this event my DEGEN DE1103 (non DSP) barefoot. The day before to start I inspected my house to find the best spot where setting up a mini and non permanent shack, and then trying to achieve the 300 stations heard (which is not easy these days). Finally I chose my own sleeping room and as a secondary listening site, also a nearby pic-nic area (300 m away from home) as I love to walk and breath fresh air, so I can roam the valley and then go there in my way back home. Have in mind that we are now in a semi lockdown, but we can move ourselves by the municipality following the COVID protocole.

My other DXing stuff is, a paper notebook, a pen/pencil, my handheld recorder and a tablet to check radio streamings. That's all!

I am astonished with the results I am achieving. I never though to recover that kind of emotion listening to distant stations with so simple equipment. After four days I have identified 117 stations. The weakest one heard (also for the very first time in my life)  with just 70w has been Desi Radio from London on 1602kHz (buried behind the powerful Spanish SER Network) and the furthest one, Radio Free Asia from Taiwan with 10.651 km. Also 15 Transatlantic ones from Canada, USA, Puerto Rico and Paraguay, also China and a varied sort of radiostations. And this is just the beginning!!!

So, thank you very much to bring again the magic of the DXing and all that material and help given to newcomers (even being serious radio enthusiasts like I consider after decades of DXing adventures).

¡Buen DX! (Good DX)



Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


Re: Building a FSL antenna

Phil Pasteur
 

Have you checked out any of the construction documents for the various sized FSL the Gary wrote? There are some of them in the files section here under "Antennas and Equipment" (I believe).
I think that there are others online as well. They will not answer some of your specific questions perhaps, but will give you ideas of what is known to work.

I am not sure about PVC. It depends on what kind you use. I have read that the white PVC is the best for coil forming, but it can be lossy at higher frequencies. It could influence the Q of the system. How much at MW? I haven't seen measurements.

With the recommended inductance and variable cap my 7" FSL does not tune much below 500 on the low end. I believe that some people have built multi coil FSLs to get the lower frequencies.
Not sure if I helped, but maybe gave you some ideas for further research.

I am sure that Gary or others here can add  much more info for you.

Phil


Building a FSL antenna

Jorge Garzón
 

Maybe there is a post (or several) regarding this but I have some questions that I would like to share with you:

1. The core of the FSL, has to be foamed or can be just a non conductive cylinder-shaped object? What about PVC?
2. I am interested in NDB and MW band, so my interest would be from 150 to 1750 (more or less). Which kind of variable capacitor do I need? I know it depend on the diameter of the aerial. Maybe a 3" baby loop or even a 5" are suitable for me as a first project. My portables are DEGEN DE1103 and Tecsun PL-330. 
3. Is it possible avoid the variable capacitor adding a pre-amp to get a broadband FSL?

I am thinking to purchase ferrites in the same place where Graham (Maynard) got the ones he used. Any other suggestion?

Thank you very much in advance!

--
Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


Ultralight DX Challenge. News from Spain.

Jorge Garzón
 

Well, after my 4th day of listening I can tell you that I am enjoying the Challenge very much with a kinda of DXing 'revival', remembering the old days... I am posting daily here: https://iberiadx.wordpress.com/the-ultralight-dx-challenge-2020/ in Spanish in case you want to practice the language or even translate it with Google (not a real teacher though!).
 
I am using for this event my DEGEN DE1103 (non DSP) barefoot. The day before to start I inspected my house to find the best spot where setting up a mini and non permanent shack, and then trying to achieve the 300 stations heard (which is not easy these days). Finally I chose my own sleeping room and as a secondary listening site, also a nearby pic-nic area (300 m away from home) as I love to walk and breath fresh air, so I can roam the valley and then go there in my way back home. Have in mind that we are now in a semi lockdown, but we can move ourselves by the municipality following the COVID protocole.

My other DXing stuff is, a paper notebook, a pen/pencil, my handheld recorder and a tablet to check radio streamings. That's all!

I am astonished with the results I am achieving. I never though to recover that kind of emotion listening to distant stations with so simple equipment. After four days I have identified 117 stations. The weakest one heard (also for the very first time in my life)  with just 70w has been Desi Radio from London on 1602kHz (buried behind the powerful Spanish SER Network) and the furthest one, Radio Free Asia from Taiwan with 10.651 km. Also 15 Transatlantic ones from Canada, USA, Puerto Rico and Paraguay, also China and a varied sort of radiostations. And this is just the beginning!!!

So, thank you very much to bring again the magic of the DXing and all that material and help given to newcomers (even being serious radio enthusiasts like I consider after decades of DXing adventures).

¡Buen DX! (Good DX)



Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


Re: Digitech AR1458 AM FM transistor radio

Paul Blundell
 

I am still interested in getting one of these, for the price it will be good to test out.


On Sat., 14 Nov. 2020, 13:28 Dan Merta, <dnmerta0@...> wrote:
Yes, It will most likely be handy to have a digital freq radio on hand to confirm stations received. 


Re: Digitech AR1458 AM FM transistor radio

Dan Merta
 

Yes, It will most likely be handy to have a digital freq radio on hand to confirm stations received. 


Re: Awards Program

Jorge Garzón
 

Ha, ha, ha...
I think I could apply for 'more than a 'Centurian' award remembering some DX seasons in the past ;-)

I received everything and I also send you back some questions.

73!

Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


En viernes, 13 de noviembre de 2020 9:03:46 CET, Gary DeBock via groups.io <d1028gary@...> escribió:


Hello Again Jorge,

I have sent you some samples of the Ultralight Radio Award Certificates by private email.

Thank you again for your generous offer to administer the program, and please let me know if you require any assistance. The attached certificate is somewhat of a joke, designed for one of my original buddies during the Ultralight Radio Boom in early 2008.

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

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