Halligan's Hallicrafters International

    Halligan's Hallicrafters International
maintained by Scott Neader, KA9FOX





From: "Mike Wolfson" <mwolfson@bright.net>
Date: Wed, 2 Jan 2002 11:31:04 -0500
Subject: [SWL] Radio Slovenia
Message-ID: <009601c193aa$dff9d4a0$1f01a8c0@ashlandcounty.org>


Anyone have a schedule for Radio Slovenia ?  Have never heard them and was
listening to a special on Radio Australia this morning that was talking
about the country and go interested.

Thanks,

Mike

----
List Administrator: Duane Fischer W8DBF/WPE8CXO  **for assistance**
w8dbf@usol.com
----
Hallicrafters Collectors International SWL Area: http://www.w9wze.org
----
Submissions  swl@qth.net

To unsubscribe, send a message to Majordomo@qth.net, no
subject.
The body: should read only:        unsubscribe swl
____



From: Jake Brodsky <frussle@erols.com>
Date: Wed, 02 Jan 2002 10:35:09 -0500
Subject: Re: [SWL] K0BRA active antenna project from QST
Message-ID: <rh963uch2sen8ekvklga2jct89k68hsvs1@4ax.com>


On Sat, 29 Dec 2001 07:58:06 -0500, Fred wrote:

>The antenna is everything on longwave, and thanks for keeping us posted on your progress.  How about some pictures?

...Coming.  They're not much different from what you see in the
article.  

>A couple of questions:
>
>Have you made the mod on the R-70 to turn on the preamp below 1600 kHz?  

No, I wasn't aware of that modification.  Frankly, I'd prefer to have
my own pre-amp ahead of the radio below 1600 kHz.  

<snip>
>Anyhow, I was wondering if you have made other comparisons of the R-70's performance on longwave, relative to other receivers.  I have an R-70 and find it performs pretty good with the preamp mod, and with a decent ferrite rod antenna, which I made by modifying a QUANTUM LOOP AM radio ferrite rod antenna.  I have to take other measures, since I have powerful AM broadcasters just a couple blocks away.  They cause overload in the radio, and appear at various places in the longwave band, but I have the same problem on shortwave.  On longwave and mediumwave, the overload problem is effectively eliminated with the QUANTUM LOOP antenna (very high Q, and thus much attenuation outside the passband), and on shortwave by using my MFJ antenna tuner, which attenuates everything but the received frequency band.

The goal of this antenna was twofold: first, it's wideband.  That's a
big feat, considering the IMD it will have to avoid.  

Second, it was supposed to isolate the antenna from everything else. 

So the result is that you'll need a VERY Strong receiver to tolerate
what this active antenna will spew at you.  A set of octave
preselectors would be a wise addition --no matter how good a receiver
you have.  

>Anyone else have an evaluation of the R-70 in the longwave region?

I haven't tried my R-70 much with it yet.  I did try the antenna with
my Kenwood TS-50S transceiver at home.  The results were not
unexpected: the TS-50S was designed for mobile applications --not IMD
performance.  Dr. Ulrich Rhode documented the poor second order IMD
response of this radio in an article he wrote on receiver design in
QST.  Anyhow, the signal to noise ratio of this antenna compared to a
random wire was pathetic.  It was overloading the receiver.  I'm not
surprised.  

I'll continue to keep the list posted on what's going on...

73,

Jake Brodsky, AB3A  mailto:frussle@erols.com
"Beware of the massive impossible!"
----
List Administrator: Duane Fischer W8DBF/WPE8CXO  **for assistance**
w8dbf@usol.com
----
Hallicrafters Collectors International SWL Area: http://www.w9wze.org
----
Submissions  swl@qth.net

To unsubscribe, send a message to Majordomo@qth.net, no
subject.
The body: should read only:        unsubscribe swl
____



From: Jake Brodsky <frussle@erols.com>
Date: Wed, 02 Jan 2002 10:24:34 -0500
Subject: Re: [SWL] K0BRA active antenna project from QST
Message-ID: <he963uo0a2rpkala37g6tcj6024a2nln85@4ax.com>


On Mon, 31 Dec 2001 17:22:53 +1300, Adrian Verry wrote:

>Any chance of a copy of the circuit for this? Looks like an interesting
>antenna. Presuming you have a scanner of course.

It's in the September 2001 issue of QST.  I'll look in to scanning the
article for you if it's not in a library near you.  



Jake Brodsky, AB3A  mailto:frussle@erols.com
"Beware of the massive impossible!"
----
List Administrator: Duane Fischer W8DBF/WPE8CXO  **for assistance**
w8dbf@usol.com
----
Hallicrafters Collectors International SWL Area: http://www.w9wze.org
----
Submissions  swl@qth.net

To unsubscribe, send a message to Majordomo@qth.net, no
subject.
The body: should read only:        unsubscribe swl
____



From: "Duane Fischer, W8DBF" <dfischer@usol.com>
Date: Wed, 2 Jan 2002 06:49:04 -0500
Subject: [SWL] Global Glow Time Changes!
Message-Id: <200201021151.g02Bpvm09042@hades.usol.com>



	
The HCI: Hallicrafters Collectors International, will glow around the globe
tonight, Wednesday January 2, 2002. The filaments will be lit at 7:00 PM EST,
(0000 UTC). The frequency will be 14.315 Mhz or 14.322 Mhz usb +/- for key
clicks, mike splatter and over modulated neighbors who think this is AM clear
channel. 		
	
The new time will remain in effect until the Spring to take advantage of the
superior Winter propagation.	
	
I hope to hear many of you this evening as we begin a new year in the ongoing
extended life of the Hallicrafters vintage radio saga. Hear you then.	
	
	
Duane Fischer, W8DBF (WPE8CXO)	
NCS: Hallicrafters Collectors International       	
netcontrol@w9wze.org 	
HCI Web Site: http://www.w9wze.org 
	


----
List Administrator: Duane Fischer W8DBF/WPE8CXO  **for assistance**
w8dbf@usol.com
----
Hallicrafters Collectors International SWL Area: http://www.w9wze.org
----
Submissions  swl@qth.net

To unsubscribe, send a message to Majordomo@qth.net, no
subject.
The body: should read only:        unsubscribe swl
____


This page last updated 18 Jul 2001.