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Re: Ferrite antenna design in older portable radios
Farmerik: Usually WHYN, CFOS, Cuba, and Maine here on 560. There was a station from Catskill, NY, but IIRC that was 540. I used to hear that one in the 60's-70's.
On 1250...Just Pittsburgh, and NJ.
Farmerik: Usually WHYN, CFOS, Cuba, and Maine here on 560. There was a station from Catskill, NY, but IIRC that was 540. I used to hear that one in the 60's-70's.
On 1250...Just Pittsburgh, and NJ.
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By
Paul S. in CT
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#28536
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Re: Ferrite antenna design in older portable radios
mediumwavedx: Sure no problem if credited.
Regards
Paul S. in CT FN31nl
mediumwavedx: Sure no problem if credited.
Regards
Paul S. in CT FN31nl
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By
Paul S. in CT
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#28535
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Re: Tassie Changes
It was even removed from the MWlist
It was even removed from the MWlist
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Max Italy
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#28534
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Re: Tassie Changes
I have also noticed they are down in signal level, I can barely hear them most of the time...--
Paul - Moderator
UltralightDX
I have also noticed they are down in signal level, I can barely hear them most of the time...--
Paul - Moderator
UltralightDX
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By
Paul Blundell
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#28533
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Re: Tassie Changes
As I type the shutdown is due to occur in 12 days 9 hours 12 mins. But It appears that they have turned down the power on the transmitters as I can't receive them in Melbourne any more.
I was going
As I type the shutdown is due to occur in 12 days 9 hours 12 mins. But It appears that they have turned down the power on the transmitters as I can't receive them in Melbourne any more.
I was going
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By
Dan Merta
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#28532
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Re: Tassie Changes
<<< I'd think Radio Sport from Invercargill, NZ's Dacre site might be more likely. >>>
Since 558-Radio Sport has always been an underperformer in this direction you may be right, Theo-- maybe
<<< I'd think Radio Sport from Invercargill, NZ's Dacre site might be more likely. >>>
Since 558-Radio Sport has always been an underperformer in this direction you may be right, Theo-- maybe
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By
Gary DeBock
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#28531
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"Frequent Flyer" Transoceanic DXing-- Ultralight Radios Running Wild
Around late 2015 a wacky concept was conceived to shrink the FSL antenna down to an airport-friendly size, thereby allowing DXers to exploit its awesome compact performance during exotic overseas
Around late 2015 a wacky concept was conceived to shrink the FSL antenna down to an airport-friendly size, thereby allowing DXers to exploit its awesome compact performance during exotic overseas
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By
Gary DeBock
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#28530
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Re: Tassie Changes
I'd think Radio Sport from Invercargill, NZ's Dacre site might be more likely.
I'd think Radio Sport from Invercargill, NZ's Dacre site might be more likely.
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By
Theo <theod438@...>
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#28529
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Re: Ferrite antenna design in older portable radios
Thanks Paul- Since you are relatively local, I thought I'd mention the locations of three stations I used to be able to completely separate on 560 AM. WHYN is quite strong here from Springfield MA.
Thanks Paul- Since you are relatively local, I thought I'd mention the locations of three stations I used to be able to completely separate on 560 AM. WHYN is quite strong here from Springfield MA.
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By
Rik
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#28528
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Re: Jay is back reviewing! -FARMERIK
I just ordered this radio, the Panasonic RF-562D, partly based on Jay's positive review, and also because it's analog and not DSP-based. One of my favorite older radios I no longer have was the
I just ordered this radio, the Panasonic RF-562D, partly based on Jay's positive review, and also because it's analog and not DSP-based. One of my favorite older radios I no longer have was the
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By
mediumwavedx
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#28527
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Re: Ferrite antenna design in older portable radios
Paul-
Great information, thanks for it. I'd love to paste these tips of yours in a blog post of mine if you wouldn't mind, giving proper credit to you of course. The additional information is
Paul-
Great information, thanks for it. I'd love to paste these tips of yours in a blog post of mine if you wouldn't mind, giving proper credit to you of course. The additional information is
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By
mediumwavedx
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#28526
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7.5 inch Loopstick Radiwow R-108
The Chinese-made Radiwow R-108 is a very compact AM-FM-LW-SW-AIR portable which has recently become available to North American purchasers via eBay, where it is currently offered at various prices
The Chinese-made Radiwow R-108 is a very compact AM-FM-LW-SW-AIR portable which has recently become available to North American purchasers via eBay, where it is currently offered at various prices
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By
Gary DeBock
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#28525
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Re: Tassie Changes
Paul,
You should try for 558-Radio Fiji One around your local sunset after 7BU stops transmitting on 558. The native-language Fiji station was recently supplied with a new 10 kW transmitter, which has
Paul,
You should try for 558-Radio Fiji One around your local sunset after 7BU stops transmitting on 558. The native-language Fiji station was recently supplied with a new 10 kW transmitter, which has
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By
Gary DeBock
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#28524
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Re: Jay is back reviewing! -FARMERIK
When I did a 1-Transistor project in 2004, the only thing on 1690 was WPTX running CNN-Headline news. They went live IIRC in '05. Then Canada put two stations on 1690... Montreal and Toronto and
When I did a 1-Transistor project in 2004, the only thing on 1690 was WPTX running CNN-Headline news. They went live IIRC in '05. Then Canada put two stations on 1690... Montreal and Toronto and
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By
Paul S. in CT
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#28523
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Re: Ferrite antenna design in older portable radios
The older and later 'pocket radio' designs were both made with a mix of price and quality. Older designs had weaker transistors/tubes and needed a high quality ferrite coil winding. A pocket model of
The older and later 'pocket radio' designs were both made with a mix of price and quality. Older designs had weaker transistors/tubes and needed a high quality ferrite coil winding. A pocket model of
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By
Paul S. in CT
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#28522
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Re: Ferrite antenna design in older portable radios
Were your widely spaced windings made with Litz? I think wide spacing lowers self Cap. and so does using Litz.
It was awhile ago I looked at Online photos showing the winding on PL-450 and PL600
Were your widely spaced windings made with Litz? I think wide spacing lowers self Cap. and so does using Litz.
It was awhile ago I looked at Online photos showing the winding on PL-450 and PL600
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By
Rik
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#28521
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Re: Tassie Changes
Thanks for the heads up on this. On 558kHz you should be able to hear 6WA from Wagin at night.
I'll try to make some recordings of 7BU & 7AD before they are shut down.
Thanks for the heads up on this. On 558kHz you should be able to hear 6WA from Wagin at night.
I'll try to make some recordings of 7BU & 7AD before they are shut down.
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By
Dan Merta
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#28520
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Re: Ferrite antenna design in older portable radios
I've tried both ways of winding. If I remember correctly, I get better signal pickup with a winding that is the full length of the ferrite.
That said, I'd be curious to know the purity differences
I've tried both ways of winding. If I remember correctly, I get better signal pickup with a winding that is the full length of the ferrite.
That said, I'd be curious to know the purity differences
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By
mediumwavedx
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#28519
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Tassie Changes
In the next couple of weeks 7BU is going to FM and will be on 100.9. 7AD will be on 98.9FM.
I will be keeping a close ear on 558kHz and 900kHz during the change to see what stations them shutting down
In the next couple of weeks 7BU is going to FM and will be on 100.9. 7AD will be on 98.9FM.
I will be keeping a close ear on 558kHz and 900kHz during the change to see what stations them shutting down
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By
Paul Blundell
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#28518
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Re: Jay is back reviewing! -FARMERIK
You guessed correctly!!
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Vimal
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#28517
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