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Re: 2 videos Tecsun PL-380 using a 30cm diameter loop in place of the ferrite antenn
Milton <www-clorofila-up-to@...>
Hi Michael, Huelbe, Jerry...and all interested group members...
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i was in debt with yours...read please about my new clip... ...the biggest problem is that the environment of my apartment is noisy and it prejudice the receiving... Here are all the necessary data about the station´s cities and respectives distance involved in these clips... between Curitiba city & Porto Alegre city: 710km (600Khz-Gaucha station - 100Kw) between Curitiba city & Criciuma city: 486km - (570Khz-Eldorado station - 5Kw) between Curitiba city & Antonina city: 80km - (1520Khz-Serra do Mar station - 1kw) between Curitiba city & Sao Francisco city: 130km - (870Khz-Sao Francisco station - 10Kw) http://www.youtube.com/watch?v=NqXDV410iFc (old clip one) and http://www.youtube.com/watch?v=y4j7sHwmoPM (old clipe-two) beyond the two old clips above...i´d like to add a new much more detailed and clearer video here below... http://www.youtube.com/watch?v=pjSJBOx3nkc ...comparing these same antennas, but with two new stations, 870Khz-Sao Francisco Radio- and 1520-Serra do Mar radio I have yet to publish a new clip using circular loop of another, but 48cm in diameter with nine laps but the enameled wire if I remember correctly wire # 22 with the same cardboard material that caught my attention not to lose so easily and measure the inductance and will compare it with the loop 103 microhenrys, so I ask your patience, I realize that I could do it tomorrow and try to publish the video until about 19h. I even remembered that tomorrow I get the litz wire 660/46 DX that many other countries go much extolling their property and decided to use it, but I do not have enough time to insert it in these tests, it is for the weekend . thanks a lot the opportunity to press my test-clips ! ...i´ll soon upload in youtube the clip of the comparing 48cm loop air diameter antenna with loop air 30cm diameter antenna. Milton Curitiba city/Parana state Brasil
--- In ultralightdx@..., "huelbe_garcia@..." <huelbe_garcia@...> wrote:
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Re: Another Ultralight DU-DXing First... 639-4YW
On 2011-08-03, at 8:03 AM, D1028Gary@... wrote:
73...ROB VA3SW Robert S. Ross London, Ontario CANADA
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Re: Another Ultralight DU-DXing First... 639-4YW
Tony Ward
A great summary report Gary, as always. "Cape Foulweather" next eh? What could possibly go wrong ... ? (G) Tony (VE3NO) ComputerViz, NYAA Starfest tonyward@... http://www.nyaa.ca The Universe is verrrry close to its Best By date ... From: "D1028Gary@..." To: ultralightdx@... Sent: Tuesday, August 2, 2011 11:32:06 PM Subject: [ultralightdx] Another Ultralight DU-DXing First... 639-4YW Hello All,
The recent Ultralight DXpedition to Lincoln City, Oregon featured pretty bizarre South Pacific propagation, with each bad day being followed by a good day, and vice versa. This propagation roller coaster continued for the entire 7-day trip, something that I had never experienced in 10 trips to Pacific Ocean beaches. The new FSL antennas managed some breakthrough DX on the "good" days, though. Not only was the start-and-stop propagation bizarre, but on every "good" day it was heavily slanted toward New Zealand, making it seem like most of the Australians weren't even on the planet. Fiji was also practically Missing in Action, but 666-New Caledonia (a rare station apparently not heard in Grayland for the last 10 years with top-of-the-line equipment) was finally strong enough to match the 738-Tahiti French parallel for an all-time new Ultralight DX country. Nothing else seemed to make much sense during this weird trip-- 639-4YW (a 2 kw New Zealand station, never before heard by John Bryant or me at Grayland, or anyone else there) was practically alone on the frequency over a trace of very weak Fiji choral music, but almost all the 50 kw Australian "big guns" seemed to have gone QRT for a good part of the week. 603-Waatea (a 5 kw Maori-language station in New Zealand) is also a station that has apparently never been heard at Grayland even with top-of-the-line equipment, but it was at decent strength again in Lincoln City on the "good" days, like it was last summer. The reception of all these obscure South Pacific AM stations with Ultralight radios and FSL's is providing more and more evidence of a "cliff side" DXing advantage on the Oregon beaches, where the ability of the Ultralights and FSL's to set up in very limited spaces on elevated oceanside cliffs is unprecedented. There are two extremely high oceanside cliff sites in Oregon (Cape Foulweather, between Lincoln City and Newport) and Arch Cove (near Cannon Beach) that I hope to use for the next two DU-chasing venues. Can Ultralight DXing get any more fun than this? :-) 73 and Good DX, Gary DeBock (in Puyallup, WA, USA)
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Re: Could the iPhone become an Ultralight ?
nz0i <charles.scharlau@...>
You bring up a good point regarding stereo microphone USB adapters. They can work well with notebooks and yes, even with the iPad. But as others have mentioned, horsepower can be an issue with SDR software applications which are mostly written with desktop horsepower assumed.
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You can get stereo microphone input into an iPad and use it with iSDR. I don't want to wander too far off topic on this ultrlightDX group, so I'll just point again to the forum where iSDR on iPad is discussed. There's even a picture: <http://digitalconfections.com/index.php?option=com_kunena&Itemid=61&func=view&catid=4&id=155> (You need to add a camera kit USB adapter to the iPad in order to access its USB capabilities.) 73, Charles NZ0I
--- In ultralightdx@..., Jeffrey Fritz <jnfritz07@...> wrote:
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Re: Another Ultralight DU-DXing First... 639-4YW
Well Rob,
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Sometimes you just have to pay the price to get rare DX-- either by freezing off your posterior in a snowmobile suit, or facing the cops at 4 AM in the rain on an ocean beach!! Either way there's no point in panicking over our bizarre behavior-- we have each other to prove to ourselves that we are still halfway normal! Yes, I'm sure that you would have been a big help when the cop showed up on the beach... he seemed to be trying hard to figure out whether I was a criminal or a kook. If you would have been there with me, he could have figured it out right away, without running the investigation! 73, Gary
-----Original Message-----
From: Robert Ross <va3sw@...> To: ultralightdx <ultralightdx@...> Sent: Tue, Aug 2, 2011 9:04 pm Subject: Re: [ultralightdx] Another Ultralight DU-DXing First... 639-4YW On 2011-08-02, at 11:32 PM, D1028Gary@... wrote: Can Ultralight DXing get any more fun than this? :-) 73 and Good DX, Gary DeBock (in Puyallup, WA, USA) I don't know Gary????.......have you ever DX'd with a Gary DeBock Made PL-380 with Frankensteiner Ferrite Loop out on your Back Deck in the Middle of the Night in FEBRUARY during a Blizzard........wearing a SNOWMOBILE SUIT and SANDALS...no Gloves and a Montreal Canadiens Toque trying to hear an NDB Beacon from Prince Edward Island?????? There's sooooooo many ways to have FUN DXing with ULR's....the possibilities are endless!! HAHHAHAHHA........ Your Beachside Cliff does sound a little more fun though???!! Congratulations on all the Great Catches at Lincoln City.......and Kudos for stretching the envelope for ULR DXing during some rough Physical Conditions!! Not to mention almost getting taken in for assessment by the Local Constabulary !!!! HAHHAHHAA. I can still hear John up there laughing at that incident!! Wish I could have been there for that.........I woulda told the Cop...."yeah...he's nuts....take him in!!" HHAHAHHA......then I woulda stole the FSL Loop and ran all the way home to Ontario with it!!! HAHHAHHAHA Regards...ROB VA3SW Robert S. Ross London, Ontario CANADA
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Re: Could the iPhone become an Ultralight ?
Jeffrey Fritz <jnfritz07@...>
I can second what Charles said about a notebook used as an SDR--only in my case I tried using an MSI Wind U123 NetBook to process an IQ feed from my Alinco DX-R8 receiver.
The U123 does have a stereo microphone in so that wasn't an issue. But even if it had been, I have a Berringer USB Audio Interface that can handle stereo audio in. The problem was that, as Charles reported, the Atom CPU simply didn't have enough processing power to keep the SDR application working properly. On a related topic, I have iSDR running on my iPad. Perhaps that could be used as well, but I suspect that, like the iPhone, the iPad also has only mono audio in. 73, Jeff, WB1AAL
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Re: Alaskan NDB's Come in the "Barn Door"
jerry_popiel
Guy, thanks for the great info re the PMD 670 MP3 recorder. I'll look on ebay for one. Guy re that Monster Ferrite Loopstick attached to that ultralite Radio I think I saw you holding in Gary's Dxpedition pictures - how many turns of what gauge of Litz Wire went onto that huge Loopstick?
Jerry
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Re: Infected machine.. SRF-M37W Filter help????
R. Mark Barnett
--- On Tue, 8/2/11, Michael wrote:
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Re: Question re Width of Bottom End of Frame for 7.5 Inch Loop
jerry_popiel
Thanks a lot for the great closeup photo Gary, yes tapering the back end of the plastic frame 60 degrees would even be better. Can't believe how light it is. So I'll Crazy Glue or Weldbond? the Frame to the front of the Radio with the Radio apart - then there won't be any glue spillover to the Back end. Re those 1/2 inch black vinyl inserts that's a generous offer re sending me some. On Friday I spent a half hour at our local Winnipeg Home Depot, and was sent back and forth between Hardware, then over to Plumbing, and no one had a clue just what I was looking for even with your Writeup which I enlarged on the pictures - I felt like your DXpedition Policeman friend, they finally found me those 1/4 inch 5/8 diameter End Caps in Hardware, which I'm not so sure will do the
job?
I got the 100 feet of 100/44 Litz wire today from MigMak, still waiting on the Amidon Ferrite Rod (their Tracking Number re USPS Priority Post is not working to Canada for some reason). Got the Scotch Extreme Tape at Staples, but they only had it in 2 inch width - but I guess that's okay? Re the Waterproof Johnson and Johnson 2 inch tape, all that is available here in Canada is the 1/2 inch & 1 inch sizes, so I bought the 1 inch 10 yard roll of it, - hope that's okay? Can I PM you somehow my address re those 1/2 inch Vinyl Inserts?
Thanks
Jerry
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Re: Another Ultralight DU-DXing First... 639-4YW
On 2011-08-02, at 11:32 PM, D1028Gary@... wrote: Can Ultralight DXing get any more fun than this? :-)
I don't know Gary????.......have you ever DX'd with a Gary DeBock Made PL-380 with Frankensteiner Ferrite Loop out on your Back Deck in the Middle of the Night in FEBRUARY during a Blizzard........wearing a SNOWMOBILE SUIT and SANDALS...no Gloves and a Montreal Canadiens Toque trying to hear an NDB Beacon from Prince Edward Island?????? There's sooooooo many ways to have FUN DXing with ULR's....the possibilities are endless!! HAHHAHAHHA........ Your Beachside Cliff does sound a little more fun though???!! Congratulations on all the Great Catches at Lincoln City.......and Kudos for stretching the envelope for ULR DXing during some rough Physical Conditions!! Not to mention almost getting taken in for assessment by the Local Constabulary !!!! HAHHAHHAA. I can still hear John up there laughing at that incident!! Wish I could have been there for that.........I woulda told the Cop...."yeah...he's nuts....take him in!!" HHAHAHHA......then I woulda stole the FSL Loop and ran all the way home to Ontario with it!!! HAHHAHHAHA Regards...ROB VA3SW Robert S. Ross London, Ontario CANADA
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Re: Could the iPhone become an Ultralight ?
kevin asato <kc6pob@...>
--- On Tue, 8/2/11, nz0i wrote:
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Another Ultralight DU-DXing First... 639-4YW
Hello All,
The recent Ultralight DXpedition to Lincoln City, Oregon featured pretty bizarre South Pacific propagation, with each bad day being followed by a good day, and vice versa. This propagation roller coaster continued for the entire 7-day trip, something that I had never experienced in 10 trips to Pacific Ocean beaches. The new FSL antennas managed some breakthrough DX on the "good" days, though. Not only was the start-and-stop propagation bizarre, but on every "good" day it was heavily slanted toward New Zealand, making it seem like most of the Australians weren't even on the planet. Fiji was also practically Missing in Action, but 666-New Caledonia (a rare station apparently not heard in Grayland for the last 10 years with top-of-the-line equipment) was finally strong enough to match the 738-Tahiti French parallel for an all-time new Ultralight DX country. Nothing else seemed to make much sense during this weird trip-- 639-4YW (a 2 kw New Zealand station, never before heard by John Bryant or me at Grayland, or anyone else there) was practically alone on the frequency over a trace of very weak Fiji choral music, but almost all the 50 kw Australian "big guns" seemed to have gone QRT for a good part of the week. 603-Waatea (a 5 kw Maori-language station in New Zealand) is also a station that has apparently never been heard at Grayland even with top-of-the-line equipment, but it was at decent strength again in Lincoln City on the "good" days, like it was last summer. The reception of all these obscure South Pacific AM stations with Ultralight radios and FSL's is providing more and more evidence of a "cliff side" DXing advantage on the Oregon beaches, where the ability of the Ultralights and FSL's to set up in very limited spaces on elevated oceanside cliffs is unprecedented. There are two extremely high oceanside cliff sites in Oregon (Cape Foulweather, between Lincoln City and Newport) and Arch Cove (near Cannon Beach) that I hope to use for the next two DU-chasing venues. Can Ultralight DXing get any more fun than this? :-) 73 and Good DX, Gary DeBock (in Puyallup, WA, USA)
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Re: Question re Width of Bottom End of Frame for 7.5 Inch Loop
Hello Jerry,
toggle quoted messageShow quoted text
Congratulations-- you seem to be the only other person so far who has made a serious effort to construct one of these plastic 7.5" loopstick frames to glue to the top front cabinet surface of a PL-380 model. The key to providing free operation of the FM-SW whip antenna when the loopstick frame is glued on top of the PL-380 is to trim the back edge of the loopstick frame (facing the whip antenna) to a 60 degree angle, as shown in the new photo posted at http://www.mediafire.com/i/?18uwg444rjkt31a . This provides enough clearance to allow for free movement of the whip antenna while DXing on FM or SW. In answer to your question, Jerry, the loopstick mounting frame is glued to the top front cabinet surface (only) of the PL-380, and the back cover should be separated from the front during this operation (to prevent glue from sealing it shut). The back cover needs to be removable for future radio maintenance, and surreptitious glue seepage would make this impossible. Also, the 1/2" black vinyl inserts may be replaced with 1/2" clear vinyl inserts without any problems. The 1/2" diameter clear vinyl inserts are available at both the local Lowe's and Home Depot stores, but if you can't track them down in Canada, I'll be happy to send you some. Good luck! 73, Gary DeBock (in Puyallup, WA, USA)
-----Original Message-----
From: jerry_popiel <jerry_popiel@...> To: ultralightdx <ultralightdx@...> Sent: Tue, Aug 2, 2011 5:59 pm Subject: [ultralightdx] Question re Width of Bottom End of Frame for 7.5 Inch Loop Gary, or others, just finished cutting the 48 inch level to 8 inches on top and 5 inches on bottom for mounting the 7.5 inch Ferrite Bar. After cuttingthe width of the Bottom edge to make it even with the Vertical Bar, there now is enough room to allow for the Pl 380 Whip Antenna Clearance. The Bottom edge of the frame is now about 7/8 inches wide. So from your recent Picture it looks like there is some Overlap on the Bottom Edge to the Back of the PL 380 Radio. My question is: For glueing purposes did you just glue the Front edge of the radio to the plastic frame and place some temporary tape so that the Back Edge of the frame doesn't get glued, to allow the Radio to be taken appart when needed? Also those 1/2 Black Vinyl Inserts, where to get them? All I can find at the Home Depot and Lumber stores are 1/4 inch Plastic End Caps that will fit in the 1 inch 5/8 diameter air Hose. Will those 1/4 inch end caps work or where do you get those 1/2 inch Black Vinyl Inserts to hold the Ferrite Bar in place? Thanks Jerry
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Question re Width of Bottom End of Frame for 7.5 Inch Loop
jerry_popiel
Gary, or others, just finished cutting the 48 inch level to 8 inches on top and 5 inches on bottom for mounting the 7.5 inch Ferrite Bar. After cuttingthe width of the Bottom edge to make it even with the Vertical Bar, there now is enough room to allow for the Pl 380 Whip Antenna Clearance. The Bottom edge of the frame is now about 7/8 inches wide. So from your recent Picture it looks like there is some Overlap on the Bottom Edge to the Back of the PL 380 Radio.
My question is: For glueing purposes did you just glue the Front edge of the radio to the plastic frame and place some temporary tape so that the Back Edge of the frame doesn't get glued, to allow the Radio to be taken appart when needed? Also those 1/2 Black Vinyl Inserts, where to get them? All I can find at the Home Depot and Lumber stores are 1/4 inch Plastic End Caps that will fit in the 1 inch 5/8 diameter air Hose. Will those 1/4 inch end caps work or where do you get those 1/2 inch Black Vinyl Inserts to hold the Ferrite Bar in place? Thanks Jerry
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Apology
Rick W4DST <w4dst@...>
I would like to apologize to the list for any problems relating to my questioning of ULR standards. As we have learned from the posts concerning iPhone SDR apps, what was cutting edge technology 3 years ago with the introduction of DSP into small portable radios, is now "old school". The marriage of SDR into smart phones may just might be the next DX frontier whether or not it is defined as ULR. To marry these 2 technologies to an FSL will be the challenge and hopefully sometime in the future some list member will do so.
Rick W4DST
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Re: Could the iPhone become an Ultralight ?
nz0i <charles.scharlau@...>
--- In ultralightdx@..., "Michael" <michael.setaazul@...> wrote:
Notebook computers suffer from the same problem as cell phones: you've got to find one that offers stereo microphone input. Too often notebooks skimp on the sound card, and offer only a mono microphone input. I would recommend doing plenty of homework before deciding to buy a notebook for SDR use. Check with knowledgeable SDR enthusiasts on some of the SDR groups for their recommendations. 73, Charles NZ0I
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Re: Could the iPhone become an Ultralight ?
Michael <michael.setaazul@...>
Even the best iThingy will struggle with "garbage in", so it makes
toggle quoted messageShow quoted text
sense that the frontend has to perform - and that an ulrx could serve well. Thanks for this additional info, Charles. It will be very interesting to hear of results, text and mp3, from a ulrx microphone-fed into a iThingy. What would be the lowest-spec notebook that would do it for an uldx maverick? Michael UK
----- Original Message -----
From: "nz0i" <charles.scharlau@...> To: <ultralightdx@...> Sent: 02 August 2011 17:32 Subject: [ultralightdx] Re: Could the iPhone become an Ultralight ? One more comment on this thread... The iSDR iPhone app utilizes the same digital signal processing techniques found in PC-based SDR receivers. It does frequency domain filtering using a theoretical "brick wall" sinc filter algorithm to provide steep and deep bandpass filtering. iSDR doesn't utilize any DSP hardware, but instead uses the iPhone/iPod/iPad processor to implement the DSP algorithms. It does all of its work at audio frequencies, so the receiver RF performance will depend largely on the quadrature sampling detector and antenna that you use with iSDR. The fact that iSDR works on audio frequencies provides an advantage that is not documented, and not widely known: iSDR can convert your iPhone into a stand-alone high-performance audio filter. And it can do so with no specialized accessories or equipment to build or purchase. Just install and run the iSDR app on your Apple iOS product, connect some earphones, and configure iSDR to use external audio input. Place the microphone next to your ultralight receiver, then tune and adjust iSDR's mode and filter settings for optimum listening. iSDR provides CW filtering down to 100 Hz. The SSB and AM filters are also adjustable. It should add some selectivity to ultralights that are lacking in that regard. It should also perform the function of a rudimentary panadapter, allowing you to view the narrow signals embedded in the audio spectrum coming from your ultralight's speaker. 73, Charles NZ0I
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Re: Infected machine
Michael <michael.setaazul@...>
I have never had a problem since installing trendmicros (free) RUBotted.
toggle quoted messageShow quoted text
Michael UK
----- Original Message ---------------
From: "Powell E. Way III" <w4opw@...> To: <ultralightdx@...> Sent: 02 August 2011 17:44 Subject: Re: [ultralightdx] Re: Infected machine He said a spambot got into his machine and sent out 700 mails in a short time and he apologized for the problem. Powell NNNN POP email is powell at backroads DOT net --- On Tue, 8/2/11, dhsatyadhana <dhsatyadhana@...> wrote: Thanks Powell - I assumed that was the case. I've deleted the messages, and will keep his account active assuming he gets it sorted out. Kevin S Moderator
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Re: Infected machine
Powell
--- On Tue, 8/2/11, dhsatyadhana wrote:
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Re: Could the iPhone become an Ultralight ?
nz0i <charles.scharlau@...>
One more comment on this thread...
The iSDR iPhone app utilizes the same digital signal processing techniques found in PC-based SDR receivers. It does frequency domain filtering using a theoretical "brick wall" sinc filter algorithm to provide steep and deep bandpass filtering. iSDR doesn't utilize any DSP hardware, but instead uses the iPhone/iPod/iPad processor to implement the DSP algorithms. It does all of its work at audio frequencies, so the receiver RF performance will depend largely on the quadrature sampling detector and antenna that you use with iSDR. The fact that iSDR works on audio frequencies provides an advantage that is not documented, and not widely known: iSDR can convert your iPhone into a stand-alone high-performance audio filter. And it can do so with no specialized accessories or equipment to build or purchase. Just install and run the iSDR app on your Apple iOS product, connect some earphones, and configure iSDR to use external audio input. Place the microphone next to your ultralight receiver, then tune and adjust iSDR's mode and filter settings for optimum listening. iSDR provides CW filtering down to 100 Hz. The SSB and AM filters are also adjustable. It should add some selectivity to ultralights that are lacking in that regard. It should also perform the function of a rudimentary panadapter, allowing you to view the narrow signals embedded in the audio spectrum coming from your ultralight's speaker. 73, Charles NZ0I
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