Re: [IRCA] PL-606 LW/MW plug-in antenna mod?

[d1028gary@xxxxxxx]

Hi Stephen,

A detailed photo showing the Tecsun PL-606 loopstick connections is
posted at http://www.mediafire.com/i/?d7i9qy8o5nz4rrr

When you access the link, click on the "Large" photo option, then
follow the two Litz wire connections from the loopstick's left side to
the "AM Coil" terminals on the upper left side of the circuit board.
These are the two connections that you will need to reroute to an
external hard-wired antenna, should you desire to permanently improve
upon the PL-606's AM or LW performance. Of course, the use of
inductively coupled external antennas like tuned passive loops (ferrite
or air core) will allow you to temporarily boost the PL-606's AM or LW
performance without the need to perform any such "surgery" on the radio
itself.

73, Gary



-----Original Message-----
From: Stephen Airy <pianoplayer88key@xxxxxxxxx>
To: Mailing list for the International Radio Club of America
<irca@xxxxxxxxxxxxxxxx>
Sent: Sat, Apr 30, 2011 6:56 pm
Subject: Re: [IRCA] PL-606 LW/MW plug-in antenna mod?

Thanks, Gary.
 
I came across a post (yahoo ultralightdx #13426) in which you mentioned
you'd taken a photo showing where the terminals are located on the
PL-606.  Unfortunately, I cannot view the images in the yahoo group
messages.  Is the image also hosted somewhere else, like mediafire,
dxer.ca or the files section of ultralightdx (and I'm looking in the
wrong place)?  (Also is there a link at which I can browse ULR-related
photos/articles you've uploaded to mediafire or whatever the site is
you've been using?)

--- On Fri, 4/29/11, d1028gary@xxxxxxx <d1028gary@xxxxxxx> wrote:


From: d1028gary@xxxxxxx <d1028gary@xxxxxxx>
Subject: Re: [IRCA] PL-606 LW/MW plug-in antenna mod?
To: irca@xxxxxxxxxxxxxxxx
Date: Friday, April 29, 2011, 6:19 PM


Hi Stephen,

In answer to your question, the PL-606 has an external FM-SW antenna
jack which can presumably be rewired like the Laurie Mann modification
to the PL-310, allowing the use of external AM plug-in antennas to
replace the stock loopstick. But since nobody (that I'm aware of) has
done this modification yet on the PL-606, it's unlikely that you'll
find any documentation for the procedure. The MW and LW 7.5" plug-in
loopsticks that I've designed for the PL-360 model use the radio's own
plug-in loopstick jack, and although these antennas will work well with
any Tecsun DSP Ultralight model, the PL-606 would need something like
the Laurie Mann modification before these or any other external AM
antennas could be plugged into the radio. A serious time crunch here
(finishing up the LW plug-in loopstick orders and other antenna
projects) makes it tough to take on any new projects like this
currently.

73, Gary DeBock (in Puyallup, WA)



-----Original Message-----
From: Stephen Airy <pianoplayer88key@xxxxxxxxx>
To: irca <irca@xxxxxxxxxxxxxxxx>
Sent: Fri, Apr 29, 2011 2:42 pm
Subject: [IRCA] PL-606 LW/MW plug-in antenna mod?

Hi all (especially ULR tinkerers)...

I have my Tecsun PL-606 open, as I had to replace a broken whip
antenna, and while I have it open I figure I may as well modify the
FM/SW plug to also accept LW/MW antennas.  I know there have been a
couple PDFs published detailing how to do it with the PL-390 and the
PL-310, and someone has said it can be done with the PL-606 as well,
but I haven't been able to find instructions for that model.
Does anyone by any chance have any photos showing what connections I
would need to make / reroute, or are there any instructions somewhere
detailing how to do that with the PL-606?
Also I know someone on the yahoo ultralightdx group sometimes will make
antennas for DXers (when he doesn't run out of materials or time :) )
but are there instructions posted somewhere for how to make my own
antenna?  (I think he's mentioned an LCR meter used for something while
making them, but I don't have one, and if I was going to get one
wouldn't want to spend more than about $10-20 or so.)

TIA & 73
Stephen
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