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Re: [IRCA] Oklahoma TP DX 8/29/17

--- Begin Message --- 
I have both. To be more exact, I have an ALA 1530ln, not an ALA 1530LNP. Perhaps it's time to conduct some tests.

Craig Barnes
Wheat Ridge, CO

--------------------------------------------
On Tue, 8/29/17, Nick Hall-Patch <nhp@xxxxxxxx> wrote:

 Subject: Re: [IRCA] Oklahoma TP DX 8/29/17
 To: "Mailing list for the International Radio Club of America" <irca@xxxxxxxxxxxxxxxx>
 Date: Tuesday, August 29, 2017, 6:55 PM
 
 Might I disagree Gary?
 
 I think what the ALA1530 could do is
 boost sensitivity across the 
 band for the CC Skywave.  The old
 method of coupling a random wire 
 into a portable radio seems to work at
 least as well for a 50 ohm 
 output from the Wellbrook
 amplifer.  A turn or two of wire around 
 the body of the radio could hot things
 up nicely when the wire is 
 connected between the center pin and
 ground of the ALA1530's RF 
 output connector, normally meant to
 couple into a receiver input connector.
 
 Elegance might involve a loop of wire
 around the internal loop's 
 ferrite rod, with a small input
 connector adapted from the ALA1530's output?
 
 At any rate, I have neither a CC
 Skywave nor an ALA1530, so I 
 haven't tried it exactly. But the
 concept seemed to work haywired 
 with a PL-380 that was modified already
 with an external 7.5" ferrite 
 rod antenna being fed by a
 Wellbrook ALA100 amplifier hooked to a 4' 
 square copper pipe antennaÂ
 .  Wenatchee on 900kHz became readable 
 here on a late summer afternoon, with
 little sign on it before.
 
 Also tried the ALA-100 with the old
 SRF-39 Ultralight...KONA-610 
 leapt out whereas just traces before.
 
 Give it a try Richard.  It won't
 be "Ultralight" anymore, but it 
 might bring up those trans-Pacifics,
 plus you can aim the loop in the 
 right direction or use it to null
 interference.
 
 best wishes,
 
 Nick
 
 At 19:16 29-08-17, d1028gary@xxxxxxxxxxx
 wrote:
 
 ><<< Question: Is it
 feasible to couple a Wellbrook ALA1530LNP aerial 
 >with a C Crane Skywave receiver
 without serious modification? I'd 
 >like try using them together.
 >>>
 >
 >The short answer is that this
 wouldn't work very well, Richard.
 >
 >The Wellbrook ALA1530LNP is a
 relatively small broadband loop 
 >designed for a 50 ohm
 impedance-input table receiver, while since 
 >the CC Skywave is a pocket radio
 designed for portability, it was 
 >never designed to be directly
 connected to any external antenna (50 
 >ohm input, or otherwise).
 Installing such a 50 ohm antenna connector 
 >on the CC Skywave would be a
 nightmare, and even if you do this, 
 >since the ALA1530LNP is a broadband
 loop designed to receive all MW 
 >frequencies simultaneously, it's
 highly unlikely to provide the 
 >single-optimized-frequency
 performance of an inductively coupled FSL 
 >antenna when used with an
 Ultralight radio.
 >
 >This is the flip side of a
 challenge that has been intriguing the 
 >local Perseus-SDR DXers for about 5
 years now-- how to somehow 
 >combine the
 single-optimized-frequency performance of the FSL's with 
 >the 50-ohm input Perseus-SDR's, and
 still have spectrum capture 
 >capability. That challenge is
 equally monumental.
 >
 >73, Gary DeBock (in Puyallup, WA)
 >
 >
 >----- Original Message -----
 >
 >From: "Richard N Allen" <richarda@xxxxxxxxxxxx>
 >To: irca@xxxxxxxxxxxxxxxx
 >Sent: Tuesday, August 29, 2017
 6:30:01 AM
 >Subject: [IRCA] Oklahoma TP DX
 8/29/17
 >
 >The only possible signal heard here
 from across the Pacific was a 
 >significant carrier from the WSW on
 702 kHz, most likely from 2BL. 
 >It was first heard as a slight
 heterodyne against 700-XEGD at 1142 
 >UTC becoming much stronger toward
 sunrise at 1200. It peaked at 1201 
 >before fading somewhat at 1204,
 then regaining in strength 1206. The 
 >signal began fading away from 1210
 but didn't disappear until around 
 >1225. In the past 2BL has been the
 most often heard DU carrier 
 >signal here, but only rising above
 the audio threshold a few times.
 >
 >No Asian signals were observed.
 Also, there wasn't the usual trace 
 >of a signal from DU on 612.
 >
 >Question: Is it feasible to couple
 a Wellbrook ALA1530LNP aerial 
 >with a C Crane Skywave receiver
 without serious modification? I'd 
 >like try using them together.
 >
 >Richard Allen,
 >near Perry OK USA,
 >Skywave & 8-inch FSL.
 >
 >Sent from my iPad
 >
 >--
 >This message has been scanned for
 viruses and
 >dangerous content by MailScanner,
 and is
 >believed to be clean.
 >
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 Nick Hall-Patch
 Victoria, BC
 Canada 
 
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