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

[d1028gary@xxxxxxxxxxx]

Hi Richard, 

Thanks for your TP-DX report from Oklahoma, describing the carrier on 702. 

<<< 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. 

_______________________________________________ 
IRCA mailing list 
IRCA@xxxxxxxxxxxxxxxx 
http://montreal.kotalampi.com/mailman/listinfo/irca 

Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers 

For more information: http://www.ircaonline.org 

To Post a message: irca@xxxxxxxxxxxxxxxx 


_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://montreal.kotalampi.com/mailman/listinfo/irca

Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers

For more information: http://www.ircaonline.org

To Post a message: irca@xxxxxxxxxxxxxxxx