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1152 SRR Radio România Actualități Barefoot Tecsun PL-360 7992 km
Peter 1956 <pe1etr@...>
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Re: The curiosity bug has bitten me . . .
daiche
I have a couple of ferrite probes that CCrane sells and that they also include with their standalone Twin Coil loop. That probe works pretty good as a pickup for my FSL's. It still needs an additional amp to match the proximity output of an FSL/radio though.....
Dave Aichelman N7NZH Grants Pass, Oregon |
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Re: A double loop idea!
edi
Hi,
Archive org. holds 73 magazines (1960 and later) https://archive.org/details/73-magazine Here is the link for the september 1994, pdf file downloadable https://ia802701.us.archive.org/13/items/73-magazine-1994-09/09_September_1994.pdf Regards Edgardo Il giorno ven 26 mar 2021 alle ore 12:08 Steve Whitt <mwneditor@...> ha scritto:
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Re: The curiosity bug has bitten me . . .
radiojayallen
Maybe a ferrite sensor onstead of a wire sensing loop?
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Re: A double loop idea!
Steve Whitt
Just Google
discriminator antenna. by richard marris
and you’ll get a downloadable PDF
73 Steve
From: main@UltralightDX.groups.io [mailto:main@UltralightDX.groups.io] On Behalf Of Gord Seifert
"https://app.box.com/s/nc0qnfc37m4tr3ugwbicozgofcyd65ai Notice that the file in view only mode and will be deleted soon" Why not make it downloadable? I have done screen shots of it and can make a pdf out of them, but why the restriction? |
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MW Ultralight DX from S. America PL-360 26/03/2021
Peter 1956 <pe1etr@...>
Indoor reception, barefoot Tecsun PL-360. One from Argentina and three from Brazil Received in Botswana.
Clear signals. https://youtu.be/952Ax9ntAJM Peter Wilson |
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Paul FM Loggings
Paul Blundell
I will be adding to this over a period of time.
------------------------- **MWDxerDB - Report**
Report Date: 03/26/2021
Report Time: 10:27:23
Freq / Name: F087.6 - TOTE SPORT RADIO
Freq / Name: F087.8 - LC FM
Freq / Name: F088.0 - RELIGIOUS STATIONS
Freq / Name: F089.3 - LA FM
Freq / Name: F090.1 - CHILLI FM
Freq / Name: F090.9 - TRIPLE J
Freq / Name: F091.7 - ABC NORTHERN TASMANIA
Freq / Name: F092.5 - ABC NEWS RADIO
Freq / Name: F093.3 - ABC CLASSIC FM
Freq / Name: F094.1 - ABC RADIO NATIONAL
Freq / Name: F095.3 - TAMAR FM
Freq / Name: F096.5 - CITY PARK FM
Freq / Name: F098.1 - WAY FM
Freq / Name: F100.3 - LA FM (CBD TRANSLATOR)
Freq / Name: F101.1 - CHILLI FM (CBD TRANSLATOR)
Freq / Name: F102.7 - ABC NORTHERN TASMANIA (TRANSLATOR)
Freq / Name: F103.7 - CITY PARK RADIO
Freq / Name: F105.3 - WAY FM
Freq / Name: F106.9 - RPH LAUNCESTON
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Re: The curiosity bug has bitten me . . .
radiojayallen
Many tuned passive air core loops have direct connection jack which are attached to smaller sensing loops within the area of the main windings and these are designed for direct connection to radios with antenna input jacks. However, I have never found these to put out a very strong signal. For experimentation, if you have a radio with both a ferrite rod and an antenna input jack and compare the two modes you will usually get much more gain using induction than via the direct connection. The only time I have had good results with the direct connection is when the loop has an amp...I have a PK loop configured this way and it works well. In addition to the fact that the sensing loop is not as effective as a ferrite rod at receiving an induced signal, the radio often has less gain on AM at the antenna jack to prevent AM overload - some radios have attenuation at the jack or they have an extra gain stage for the ferrite rod which is not applied to the antenna jack.
So it seems there is still the possibility to use some sort of amplifier arrangement with the FSL's but since FSL's are so different than air core loops this is totally new territory and maybe experimentation will tell us more. I applaud those who a willing to put in time and effort for this. Jay |
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Kmart AM/FM Radio - Review - March 2021
Paul Blundell
Recently I was given a small $9 AM/FM radio, this is from Kmart but does not have a model number listed. “This portable AM/FM pocket radio lets you listen to your favourite stations throughout the day. With clear sound playback, you can choose to listen through the built-in speaker or headphone jack. · Dimensions/Size: 5.6cm (L) x 11.5cm (H) x 2.6cm (D) · Colour: Black · Battery information: Requires 2 x AAA 1.5V batteries (not included) Features · Supports both AM and FM broadcasts · Telescopic antenna · Built-in speaker and earphone jack Additional Information · Warranty: 12-months” From my testing so far it works as well as I would expect from a sub $10 radio. It runs off 2 x AAA batteries. The right hand side panel has the AM/FM switch, ear phone jack and the volume / off control. The front panel has the speaker at the bottom and the tuning knob at the top. This has two scales, the top is for the AM band and the bottom is for the FM band. The tuning knob is a little weird to use and has a small amount of play, the smallest bump will knock it off station. I spent some time last night tuning around both the AM and FM bands.
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Re: The curiosity bug has bitten me . . .
kevin asato
Wind a few turns over the FSL, then connect directly into the antenna terminals - most likely the spring terminals on the R8. The FSL is still free to rotate to aid in receiving the best signal. 73, kevin kc6pob On Wed, Mar 24, 2021 at 3:32 PM Paul Blundell <tanger32au@...> wrote:
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Re: The curiosity bug has bitten me . . .
Michael.2E0IHW
Let us not give up. Should roving
subs cut oceanbed fibre cables,
we would still be receiving... Radios with a sub-pathetic internal AM ferrite antenna could be modified so as to connect an externl FSL or other aerial. Michael UK On 24/03/2021 22:32, Paul Blundell
wrote:
FSL's (I have one) use induction to connect to the internal bar aerial in radios, as these radios don't have an internal bar aerial, I am not sure how
it would be best to connect them?
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Re: 1413 MDA Vesti FM with ID barefoot PL-360 received in Botswana
Michael.2E0IHW
Maybe all such technology
mimicry should be deemed
toggle quoted message
Show quoted text
maximaficacious for international bondification... Now where is my dusty copy of that little red book? And: somewhere in the loft I have a few OC71s awaiting rejunification. With a few ferrites, who knows our limits... Anony On 24/03/2021 22:28, Pwrote:
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Re: I’ve heard about as far south as I can!...
Paul Blundell
West Australian is further away then Queensland. On Thu, 25 Mar 2021, 01:42 Paul B. Walker, Jr., <walkerbroadcasting@...> wrote:
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Re: I’ve heard about as far south as I can!...
Paul Blundell
Well done Paul, they are about 180km south of me. Paul On Thu, Mar 25, 2021 at 1:10 AM Paul B. Walker, Jr. <walkerbroadcasting@...> wrote: .. before I start taking a trip back towards myself! --
Paul |
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Re: The curiosity bug has bitten me . . .
Paul Blundell
FSL's (I have one) use induction to connect to the internal bar aerial in radios, as these radios don't have an internal bar aerial, I am not sure how it would be best to connect them? Paul On Wed, Mar 24, 2021 at 9:36 PM Jock Elliott <jock.elliott@...> wrote:
--
Paul |
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Re: 1413 MDA Vesti FM with ID barefoot PL-360 received in Botswana
Paul Blundell
"It would be nice to go back, but the Beijing regime might arrest me for criticizing Chinese copying of foreign radio technology :-)" It would be sad to lose you from the radio hobby... I do wonder at times how much what we do here and online might affect us in the future. Paul On Tue, Mar 23, 2021 at 08:45 PM, Peter 1956 wrote: --
Paul |
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Re: Software - MWDXerDB
Paul Blundell
Hi Jorge, At the moment it has 10 stations listed, this is to give an example of what I log, it is designed to allow you to enter your own logs of what stations you hear. It has three search features which export the search results to a basic test file which means they can be shared online easily. I am in the process of moving all my logs across to it, this might take a while. Paul
--
Paul |
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Re: Double loop idea: The question
Hi Zachary,
I have combined my Radio Shack MW Loop (Kaito/Tecsun AN-100 look-a-like) and one of my 3 or 4 foot Loops before. I found fairly good results if the radio has an external antenna port. RTL-SDR and Sony ICF-2003. The external antenna port is hooked up to the Radio Shack MW loop. Passive connections tend to overdrive the front end of those radios. Working the RS Loop and the FSL is NOT good, at least for me. Play around as see what happens. Good Luck. Art K7DWI in So. Oregon |
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Re: The curiosity bug has bitten me . . .
daiche
I have worked with Guy on that design and on some of the tests to use an SDR or communications receiver with an FSL. Also, I had Andy of Wellbrook make me and Guy a special 72:1 winding FLG100LN antenna module with 23db gain to see if we could get enough signal and a broadband enough response to be usable. While all those experiments worked to some degree, none were satisfactory to use as an end product. So, at this point an FSL antenna is still a proximity device. Some have used a turn or two around the coil of an existing FSL connected to a receiver, but that didn't work as well as the 72:1 module with the 23db gain amplifier in it. At this point, further progress seems to be at a stalemate and most who use an FSL do so with portable radios because of it's compact, go anywhere size and versatility.
73, Dave Aichelman N7NZH Grants Pass, Oregon |
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Re: I’ve heard about as far south as I can!...
Paul B. Walker, Jr.
Oops. I missed 4QN. It’s probably them. On Wed, Mar 24, 2021 at 6:41 AM Paul B. Walker, Jr. via groups.io <walkerbroadcasting=gmail.com@groups.io> wrote:
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