Sony ICF-SW7600GR antenna jack
acmac
like to give a try with a long wire.
The main question is what appears to be a 3.5 jack, is it a stereo or a mono
one?
Is there any chance to be improving LW/MW/SW reception using a 100 feet wire
(10 feet above the ground) rather than the usual wind up antenna?
I hope not to be bothering you all with this issue.
David
Since you are just using the Tip for the long wire (nad maybe the
Sleeve for the ground) whether there's a Ring (in the case of a Stereo
3.5 mm plug) doesn't matter. If you use a Stereo plug, short the Ring
and Sleeve together, just to make sure.
I wouldn't go longer than about 30 feet with that radio (less if
strange signals start popping up).
sdan...@nyc.rr.com
were going to try a 100 ft wire, I'd use an alligator clip to attach it
directly to the 7600's antenna, rather than to the antenna jack, as it
seems to me you're less likely to blow an FET or something. Also, I'd
make sure the attenuation is turned up pretty high.
Steve
RHF
The Sony ICF-SW7600GR's External Antenna Input is an 1/8"
Mono-Jack as are most 'portable' AM/FM Shortwave Radios.
Note - The Sangean ATS-909 Radio is an exception to this and
uses a 1/8" Stereo-Jack for the Radio's External Antenna Input.
hope this helps - iane ~ RHF
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RHF
Two Things that most 'portable' AM/FM Shortwave Radios Could Use
for "Improved" Shortwave Radio Listening (SWL) :
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/5867
1. External Antenna Input Isolator :
The simplest way to Protect most of the Front-Ends of these
'portable' AM/FM Shortwave Radios is to use a TV 75 Ohm to
300 Ohm Matching Transformer between the Coax cable and the
1/8" Mono-Plug that is used to Plug into the Radio's External
Antenna Input 1/8" Mono-Jack. The two 300 Ohm Leads of the
Matching Transformer are connected one to the Tip (Antenna)
and the other to the Barrel (Ground) of the 1/8" Mono-Plug.
You now have your External Antenna Input Isolator to use
with your these 'portable' AM/FM Shortwave Radios. Good for
Shortwave and FM Radio Reception with some built-in Attenuation
of the AM/MW Broadcast Band which is generally a good thing
with these 'portable' AM/FM Shortwave Radio. This is because
most these 'portable' AM/FM Shortwave Radios often suffer
from Front-End Signal Overload from AM/MW Radio Stations when
they are Hooked-Up to an External Shortwave Antenna that is
longer than 35 to 50 Feet or more.
2. Moderate Size Low Noise Inverted "L" Antenna :
The simplest Antenna for most of these 'portable' AM/FM Shortwave
Radios is an Inverted "L" Antenna of about 45 Feet long with a
15 Foot Vertical-Up-Leg and a 30 Foot Horizontal-Out-Arm.
Use a TV Matching Transformer with one of the 300 Ohm Leads
connected to the Wire Antenna Element; and the other Lead
connected to a Ground Rod/Point. Connect the 75 Ohm end of
the TV Matching Transformer to 75 Ohm RG6 Quad-Shield Coax
Cable; and connect the other end of the Coax Cable to the
External Antenna Input Isolator.
TIP - For these 'shorter'Shortwave Listener (SWL) Antennas :
I like FLEX-WEAVE Antenna Wire the so called "Cadillac of
Aerial Wire".
http://www.davisrf.com/ham1/flexweve.htm
FLEX-WEAVE comes in #14 (168 Strands of #36 Copper Wire)
http://www.davisrf.com/ham1/flexweve.htm
Highly UV Resistant PVC Jackets (Insulatated Covering) of
Clear, Black, and Camouflage Green.
http://www.davisrf.com/ham1/flexweve.htm
FWIW - RF Junkie now offers an "SWLZ" 9:1 Matching Transformer
that uses an "F" Connector for use with RG6 Coax Cable for
Shortwave Listeners (SWLs)
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/4245
SWLZ => http://www.geocities.com/qrp_baluns/SWLZ.html
These work better then the common TV 300 Ohm to 75 Ohm Matching
Transformers and give good performance from 500 kHz to 30 MHz
for the Shortwave Radio Listener.
IMAGE - Hooking-Up the SWLZ as a Low Noise Inverted "L" Antenna
http://www.geocities.com/qrp_baluns/APP-SWLZ.html
READY-MADE - Shortwave Listener (SWL) Antenna that fits into
the 45 Foot Long Range is the PAR Electronics EF-SWL Antenna.
It come with the Matching Transformer and 45 Feet of Flex-Weave
Wire Antenna Element; and all you need to do is Install your
Ground Rod; Rig the Wire Antenna Element; and Attach your Coax
Cable. => http://www.parelectronics.com/swl_end.htm
http://www.grove-ent.com/ANT8.html
http://www.universal-radio.com/catalog/sw_ant/2205.html
Read - Building an Inverted "L" Antenna
using the PAR Electronics EF-SWL Antenna
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/3089
iane ~ RHF
.
All are WELCOME and "Invited to Join" the
Shortwave Listener (SWL) Antenna eGroup on YAHOO !
<http://groups.yahoo.com/group/Shortwave-SWL-Antenna/>
SWL ANTENNAS GROUP => http://tinyurl.com/an6tw
.
Some Say: On A Clear Day You Can See Forever.
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/502
.
I BELIEVE: On A Clear Night . . .
You Can Hear Forever and Beyond, The BEYOND !
With a Shortwave Listener SWL Antenna of your own making.
"If You Build It {SWL Antenna} You Will Hear Them !"
.
.
. .
David
wrote:
>1. External Antenna Input Isolator :
>The simplest way to Protect most of the Front-Ends of these
>'portable' AM/FM Shortwave Radios is to use a TV 75 Ohm to
>300 Ohm Matching Transformer between the Coax cable and the
>1/8" Mono-Plug that is used to Plug into the Radio's External
>Antenna Input 1/8" Mono-Jack. The two 300 Ohm Leads of the
>Matching Transformer are connected one to the Tip (Antenna)
>and the other to the Barrel (Ground) of the 1/8" Mono-Plug.
>You now have your External Antenna Input Isolator to use
>with your these 'portable' AM/FM Shortwave Radios.
>
Those cheap ''BALUNS'' are actually autotransformers and offer zero
(zip, iota, nada) DC isolation between the primary and the secondary.
Jim Hackett
to the antenna. Some/many radios have some sort of pre-amplification to the
whip and not at the jack. Of course, I COULD be wrong in this case...
<sdan...@nyc.rr.com> wrote in message
news:1129557738.7...@f14g2000cwb.googlegroups.com...
Joe Analssandrini
You cannot improve LW/MW reception with ANY antenna connected to the
Sony ICF-SW7600GR's 3.5mm antenna input or clipped to the built-in rod
antenna. The only way to improve MW reception is via a Select-a-Tenna,
Terk AM Advantage, or other similar induction-coupled loop antenna
which is placed near the radio and can be rotated in the desired
direction. I suppose one of these could be home-brewed for LW but it
would be rather large and ungainly.
Note that the radio offers very good reception on MW and a
Select-a-Tenna really helps. You can mount both on a "lazy susan" and
even take the whole thing outside for quite satisfactory MW reception.
A long wire antenna of no more than 50 feet with a lead-in wire
soldered or crimped to a 3.5mm mono plug will work for shortwave
frequencies but remember to install proper lightning/static protection.
(You could cut the wire from one of those wind-up antennas and use it
for a lead-in wire; it already has the 3.5mm plug attached.)
Frankly however, I don't think it's worth it as the ICF-SW7600GR, good
as it is for its purposes, is no DX machine. You'd probably be better
off with a Sony AN-LP1 Active Loop Antenna, or, even better, an AOR
WL500 Window Loop Antenna (if you can find one).
If you desire to erect a long wire of 100 feet or so, you should
consider buying a receiver which can take advantage of such an antenna.
Best,
Joe
RHF
I would Agree with Joe Analssandrini.
My VOTE would be for the Sony AN-LP1 Active Shortwave Loop Antenna
alone with the Select-A-Tenna Model 541-M AM/MW Loop Antenna.
Together these two External Antenna work great with the
Sony ICF-SW7600GR 'portable' AM/FM Shortwave Radio.
READ - Sony ICF-SW7600GR Radio and Sony AN-LP1 {SW}
and Select-A-Tenna {AM/MW} Antennas
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/2588
READ - Sony ICF-SW7600GR and Sony AN-LP1 'portable' Shortwave Antenna
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/1901
MORE - Sony ICF-SW7600GR Radio reading:
* Shortwave Listener (SWL) Antenna 'options' for a
Sony ICF-SW7600GR Radio
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/2892
* Sony ICF-SW7600GR - Two In-Door Antennas for AM/MW and FM Radio
Bands
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/2936
* Two Radios with AM-SYNC for Nightime "BedSide" Listening
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/3116
sony no baloney - iane ~ RHF
RHF
Another option for using a "Long" Random Wire Antenna with a
'portable' AM/FM Shortwave Radio is the "Portable Wire Antenna"
(PWA) that was created and written about by Tom Sevart [N2UHC].
PWA => http://www.geocities.com/n2uhc/portablewire.html
COMPILATION OF PORTABLE WIRE ANTENNA (PWA) MESSAGES :
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/5871
REFERENCE => http://www.geocities.com/n2uhc/portablewire.html
* Using the Portable Wire Antenna" (PWA) by Tom Sevart [N2UHC]
with your 'portable' AM/FM/ Shorwave Radio
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/1728
* More On - Building the "Portable Wire Antenna" (PWA)
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/826
* Building the "Portable Wire Antenna" (PWA)
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/724
* PWA = External AM/MW Antenna for the Sangean ATS-909
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/384
* Three Ways to Use the "Portable Wire Antenna" (PWA)
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/306
* The "PWA" [Portable Wire Antenna] for use with 'portable'
AM/FM Shortwave Radios
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/249
tyvm - tom sevart for the portable wire antenna - iane ~ RHF
David
wrote:
>David,
These Sony radios seem to be pretty shitty.
My Sangean ATS-606A is as sensitive as can be with the whip antenna
that came attached to the cabinet. I've never felt the need to add
length to increase sensitivivity.
dxAce
David wrote:
Your wife and or girlfriend/boyfriend may disagree.
dxAce
Michigan
USA
Sanjaya
"RHF" <rhf-new...@pacbell.net> wrote in message
news:1129585032.9...@g44g2000cwa.googlegroups.com...
I took this advice and built the PWA. It works like a charm.
I use it indoors though, and replaced the "weight" with an alligator clip.
I also followed RHF's advice about leaving extra wire hanging off the "toroid" and
and connecting a 1/8 mono plug for connecting to portable SW antenna jacks.
Here's how I made the modified version:
Materials...
Radio Shack stuff.
Hookup wire AWG22 90 feet cat. #278-1218
1/8" solderless mono mini plug cat. #274-868
Package of alligator clips cat. #270-375
(Online order $16.90 delivered, probably cheaper if you buy locally)
I got a five foot length of 1/2 inch inside diameter pvc at Home Depot for a couple of dollars. I
have a "mini" hacksaw which I used to cut a one foot length. I left 8 inches of wire hanging over
the end of the pvc and used super glue to tack the wire in place near the end while winding more
wire on the tube of pvc (see the PWA website picture). Then I wrapped the whole thing in black
electrical
tape. From the remaining spool I ran 50 more feet of wire, after I finished the tube part. I
attached an alligator clip to this long end of wire, and the mini-plug to the "short piece" that
extended beyond the "toroid" end. Then ran about 8 feet of the long wire end up the wall, tacked it
in place and continued to work my way around the ceiling.
I put the "tube" over a partially extended whip antenna of a portable SW, with mini-plug into the
antenna jack.
I assume 100 ft of wire would help enhance the lower frequencies.
Caveat: wives hate seeing wires like this. White or "off white" would be better and, if you can find
it at R.Shack, some white "wire wrap" would be almost invisible (you'd need to find a way to strip
the thin insulation though). I don't know the gage of this "wire wrap" but it's really thin. I've
seen it in 50 ft. lengths at RS.
cuh...@webtv.net
packed them up and I sent them back to ccrane via UPS.
cuhulin
cuh...@webtv.net
cuhulin
cuh...@webtv.net
it.Halloween tip.Get some old raggity clothes and a raggity hat and
shoes.Wad up a bunch of newspaper and stuff the clothes with the wadded
up news paper and set the thing by your front door for Halloween.
cuhulin
sdan...@nyc.rr.com
wrong: It's a huge help with, e.g., my little Grundig mini-world radio,
but I find it helps very little with the 7600GR, even in the daytime.
Steve
RHF
Setting-Up the Sony ICF-SW7600GR with the Select-A-Tenna
on a Lazy Susan for AM/MW DXing.
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/5886
Are you using the Select-A-Tenna and the Sony ICFSW7600GR
Positioned correctly on a Lazy Susan with the middle of the
backside of the Select-A-Tenna placed against the Left-End-Side
of the Sony ICF-SW7600GR ?
Visualize - That 'together' they sort of form a "T"
laying flat when seen from the Top.
Note - The Sony ICFSW7600GR should be Standing-Up
(Vertically) on it's Bottom.
The Sweet Spot - Then if needed you can adjust the "Coupling"
between the Select-A-Tenna and the Sony ICFSW7600GR by
creating a "GAP" (Space) between the two. Move it about a
Half Inch at a Time and try several "Distant" AM/MW Radio
Stations that are all across the AM/MW Band.
hope this helps - iane ~ RHF
sdan...@nyc.rr.com
RHF wrote:
> Steve,
>
> Setting-Up the Sony ICF-SW7600GR with the Select-A-Tenna
> on a Lazy Susan for AM/MW DXing.
> http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/5886
>
> Are you using the Select-A-Tenna and the Sony ICFSW7600GR
> Positioned correctly on a Lazy Susan with the middle of the
> backside of the Select-A-Tenna placed against the Left-End-Side
> of the Sony ICF-SW7600GR ?
>
> Visualize - That 'together' they sort of form a "T"
> laying flat when seen from the Top.
>
Yeah, I've tried them in just about every conceivable orientation that
will permit coupling between them. Interestingly, if I switch in some
attenuation on my SW77 I find that the Select-A-Tenna is useful at
cleaning up signals, especially during the daylight hours. However, I
have little luck with the 7600GR. I don't know what the problem is, but
it may have something to do with my listening environment. It's not a
big deal....there's plenty I can hear using just the 76000GR by itself.
Steve
Joe Analssandrini
I too have a Sangean ATS-606AP though it's "retired" now; its
microprocessor was starting to "go" - the internal quality of Sangean
radios is not all it should be, at least in my experience with two
Taiwan-made units (the '606AP and an '818A. Formerly my travel radio,
the Sangean has been replaced by one of my Sony ICF-SW7600G receivers.
However, while my '606 was still functioning properly, I tried using
the Sangean wind-up antenna (via its 3.5mm plug), a Sony AN-LP1, and an
AOR WL-500 Window Loop.
While the wind-up antenna didn't improve things very much, the AN-LP1
and the WL-500 improved reception noticeably; the WL-500 was superior
to the AN-LP1.
I certainly wouldn't suggest that you buy one of the above just on my
say-so, but if you have an acquaintance who has one of them, why not
try it? I think that you will indeed notice a major improvement in your
radio's performance.
My Sony ICF-SW7600G and 'GR models are easily as sensitive (if not more
so)
with the whip as the Sangean ATS-606A and the Sony's synchronous
selectable sideband circuity makes listening much more pleasurable.
Any radio's reception will improve with a suitable auxiliary antenna.
Best,
Joe
David
<analssa...@yahoo.com> wrote:
Thanks. I can hear Bangalore on it in the daytime if I'm outside (I'm
in Los Angeles County). I've added a couple clip leads to the whip in
hotel rooms. I understand the principle.
I think my main point is to use serious antennas you need a
more-than-portable receiver.
RHF
I would agree that most of today's 'portable' AM/FM Shortwave Radios
work much better with a 'shorter' Random Wire Antennas about 30-35
Feet long. When a 100 Foot Antenna is used often the 'portable'
AM/FM Shortwave Radios exhibit signal overload and image problems.
IMHO - If the Random Wire Antenna uses a Matching Transformer and
Coax Cable Feed-in-Line then the Length of the Wire Antenna Element
can be extended to 45-60 Feet.
RHF
There is a Sony ICF-SW7600GR 'portable' AM/FM Shortwave Radio with the
Sony AN-LP1 Active Loop Antenna currently on eBay.
eBay Auction Item Number : 5823221447
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5823221447
Looks like a complete ready-to-go 'portable' Shortwave Radio with
Active Shortwave Loop Antenna for the SWL Traveller on-the-go.
fyi ~ RHF
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