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Improving AM Broadcast Band reception
Anyone have an idea how I can better my reception of a local AM station.
I live in the fringe area and was curious as to whether there is a simple improvement for the AM broadcast band. I use a simple Panasonic portable and just want to listen to talk-radio.... Thanks. -mike |
Mike Lynn wrote in :
Anyone have an idea how I can better my reception of a local AM station. I live in the fringe area and was curious as to whether there is a simple improvement for the AM broadcast band. I use a simple Panasonic portable and just want to listen to talk-radio.... Thanks. -mike The simplest thing I can think of is this: put up a wire, and bring the end of the wire to the radio. The wire will couple with the radio's built in ferrire bar antenna and sensitivity will improve. Move the wire around in relation to the radio until you find the best coupling. The wire is not at all critical, and you can experiment with it's length to determine how long you can make it without overloading the radio and causing undesirable effects. I'd start with 50 feet. This is the easiest way without buying anything or constructing anything, and anybody can do it. |
"Mike Lynn" wrote in message
... Anyone have an idea how I can better my reception of a local AM station. I live in the fringe area and was curious as to whether there is a simple improvement for the AM broadcast band. I use a simple Panasonic portable and just want to listen to talk-radio.... http://www.selectatenna.com/ Craig, WPE1HNS Meredith, NH USA Drake R8B/Alpha Delta DX Sloper Sony SW-77 Sony ICF-2010 2 x Phillips/Magnavox D2935 Uniden CR-2021 Knight Kit Star Roamer (permanently tuned to Turkey on 9460) GE Superadio II/Select-A-Tenna Delphi Ski-Fi XM/3" Antennae Tuning since 1963 |
Get an MW loop, which is a (usually) 1-foot diameter hoop you put
next to the radio, and it matches the impedance so that the radio hears down the the propagating noise floor, which is as sensitive as you need to be. We're talking daytime. At night, every radio is sensitive enough because the problem is too many signals, not too few. In the day you'll get say 300 miles range with a MW loop. I can hear 17 versions of Limbaugh at noon in Central Ohio at three time delays. The two cheapest MW loops are simple passive loops, the Terk MW loop ~$40 and Select-a-tenna ~$60. Radio Shack used to have one ~$30. Passive loops are good enough. Active ones are not better, just more costly. You can build your own but it's actually not worth it. -- Ron Hardin On the internet, nobody knows you're a jerk. |
Ron Hardin wrote:
The two cheapest MW loops are simple passive loops, the Terk MW loop ~$40 and Select-a-tenna ~$60. Radio Shack used to have one ~$30. Did Radio Shack discontinue that loop antenna? It was very good, but its selectivity was poor at the upper end of the band. OTOH, the Select-A-Tenna is very selective; great if you have an interference problem. I wouldn't want to be without one. (Both of them must be manually tuned, hence the reference to selectivity.) This active antenna is excellent: http://www.ccrane.com/am-antenna.asp . It also requires manual tuning. So, none of these are as simple as the plain wire idea, but they're not hard to use, either. -- Reply address munged. You can figure it out. |
= = = Mike Lynn wrote in message
= = = ... Anyone have an idea how I can better my reception of a local AM station. I live in the fringe area and was curious as to whether there is a simple improvement for the AM broadcast band. I use a simple Panasonic portable and just want to listen to talk-radio.... Thanks. -mike ML, READ - AM/MW DXing: Three Loop Antennas and Three 'portable' Super Radios http://groups.yahoo.com/group/Shortw...na/message/775 Crane {Justice} AM Antenna is a "Great AM/MW Signal Magnet" http://groups.yahoo.com/group/Shortw...na/message/615 http://groups.yahoo.com/group/Shortw...na/message/631 .. .. REMEMBER: "The AM/MW/Shortwave Antenna is 55.5% of the... Radio/Receiver and Antenna/Ground Reception Equation" http://groups.yahoo.com/group/Shortw...na/message/288 A Shortwave Antenna is "Equally" Important for Good Reception [.] .. .. iane ~ RHF .. Some Say: On A Clear Day You Can See Forever. http://groups.yahoo.com/group/Shortw...na/message/502 I BELIEVE: On A Clear Night... You Can Hear Forever and beyond, The Beyond ! .. .. |
You can build your own but it's actually not worth it. -- Ron Hardin I beg to differ about loops that you build are not worth it. I designed and built many MW loops that are as good or better in some ways that the Kiwa loop. The problems with homemade loops is poor construction. This link has pictures of loops that I built. http://www.frontiernet.net/~jadale/M...20Antennas.htm Jim |
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As a salesman, I'll work a particular region for several weeks, and
sometimes I get addicted to a particular radio show. This summer, my day wasn't complete unless I listened to Glenn Beck. Sometimes he would make me laugh so hard I couldn't stand myself. Then I had to start working from my house, and I knew I couldn't pick up his show any more. Then it hit me that some radio stations offer Real Audio streams. That worked perfectly! I could get his show loud and clear, even though the nearest affiliate was a 5kw AM station over 150 miles away. Sure it was cheating because I believe in pure dxing without any external wires or anything, but I justified it by reasoning that I was just trying to hear a particular program and not a particular station. So Jay, maybe you can cheat and do it like I did! |
"King Pineapple" wrote in
hlink.net: http://www.selectatenna.com/ Obviously, the receiver has no antenna input jack. Thus throw all the loop antenna suggestions out the window, unless you want to try and teach him how to make a ferrite bar coupling loop. People should take time to read thoroughly before they post solutions that won't work. The long wire inductively coupled is the best solution for his problem, not a loop or a new radio. |
"donutbandit" wrote in message ... "King Pineapple" wrote in hlink.net: http://www.selectatenna.com/ Obviously, the receiver has no antenna input jack. Thus throw all the loop antenna suggestions out the window, unless you want to try and teach him how to make a ferrite bar coupling loop. People should take time to read thoroughly before they post solutions that won't work. The long wire inductively coupled is the best solution for his problem, not a loop or a new radio. The Select-a-Tenna (at least the model I have) works wonderfully on radios with no external antenna connections. Indeed, there is no way to connect it to the radio directly, you just set it by the radio and tune it. |
donutbandit wrote:
http://www.selectatenna.com/ Obviously, the receiver has no antenna input jack. Thus throw all the loop antenna suggestions out the window, unless you want to try and teach him how to make a ferrite bar coupling loop. People should take time to read thoroughly before they post solutions that won't work. The long wire inductively coupled is the best solution for his problem, not a loop or a new radio. The Select-A-Tenna couples inductively to the radio. (there's a deluxe model that does offer a direct connection to an antenna input jack) I've seen it in use, and it *does* work as advertised. It's no substitute for a Beverage, but it's a worthwhile improvement. -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
donutbandit wrote:
Obviously, the receiver has no antenna input jack. Thus throw all the loop antenna suggestions out the window All Select-A-Tennas, the Radio Shack loop, and the Crane antenna all work with any AM radio that has no antenna input terminals. All three types, with the exception of the most basic Select-A-Tenna, also can be connected to antenna input termnials. -- Reply address munged. You can figure it out. |
CR,
If it is one specific AM/MW Radio Station that your are interested in then consider a Fixed Turned and Fixed Postioned Loop Antenna. * Use your Closet Door (Back-of-Door) as "Super Loop" Antenna [For Distance Sports/Talk Radio in the 150 Mile Daytime Range.] http://www.hard-core-dx.com/nordicdx...oop/loop5.html - Six to Seven Turn Tri-Angle Shaped Loop Antenna - Two Foot Base with two equal Legs of Six Foot - Fixed Capacitor(s) for single station tuning. * How to Get Better AM Radio Reception http://geocities.com/SunsetStrip/Tow...2/amradio.html * AM ANTENNAS http://www.abc.net.au/reception/radio/am_antenna.htm * AM/MW Antenna Booster http://www.abc.net.au/reception/radi...htm#am_booster * AM/MW Loop Antenna Coupler http://www.webex.net/~skywaves/ANTENNA/antsys.htm#loop * AMANDX - presented by Shawn Axelrod Build a Three or Four Foot Box Loop for the AM/MW Broadcast Band http://www.angelfire.com/mb/amandx/loop.html http://www.carcanada.net/dx/donloop.html http://www.mindspring.com/~loop_antenna/ * The Australian One Metre (1m) Loop Antenna - by Werner Funkenhauser http://www.hard-core-dx.com/nordicdx...op/1mloop.html http://www.hard-core-dx.com/nordicdx...op/rnloop1.gif iane ~ RHF .. .. = = = "Corbin Ray" wrote in message = = = ... As a salesman, I'll work a particular region for several weeks, and sometimes I get addicted to a particular radio show. This summer, my day wasn't complete unless I listened to Glenn Beck. Sometimes he would make me laugh so hard I couldn't stand myself. Then I had to start working from my house, and I knew I couldn't pick up his show any more. Then it hit me that some radio stations offer Real Audio streams. That worked perfectly! I could get his show loud and clear, even though the nearest affiliate was a 5kw AM station over 150 miles away. Sure it was cheating because I believe in pure dxing without any external wires or anything, but I justified it by reasoning that I was just trying to hear a particular program and not a particular station. So Jay, maybe you can cheat and do it like I did! .. |
"donutbandit" wrote in message ... "King Pineapple" wrote in hlink.net: http://www.selectatenna.com/ Obviously, the receiver has no antenna input jack. Thus throw all the loop antenna suggestions out the window, unless you want to try and teach him how to make a ferrite bar coupling loop. A loop antenna will couple very well to a radio's internal antenna. Another coupling loop is an unnecessary complication. People should take time to read thoroughly before they post solutions that won't work. People should try putting the radio and loop antenna on a lazy susan for easy rotation. It works great -- it really does! The long wire inductively coupled is the best solution for his problem, not a loop or a new radio. The loop antenna inductively coupled to a radio's internal antenna is the best solution for someone who wants a selective compact antenna with reasonable gain. Frank Dresser |
Brenda Ann wrote: "donutbandit" wrote in message ... "King Pineapple" wrote in hlink.net: http://www.selectatenna.com/ Obviously, the receiver has no antenna input jack. Thus throw all the loop antenna suggestions out the window, unless you want to try and teach him how to make a ferrite bar coupling loop. People should take time to read thoroughly before they post solutions that won't work. The long wire inductively coupled is the best solution for his problem, not a loop or a new radio. The Select-a-Tenna (at least the model I have) works wonderfully on radios with no external antenna connections. Indeed, there is no way to connect it to the radio directly, you just set it by the radio and tune it. Yep - I have one too, and it's a completely passive device (though they do make a powered version of it, but I've read it's a waste of money). Select-a-tenna is placed in-line with a loop antenna, and at a 90 degree angle to a ferrite bar antenna. It helps a lot at night, but it helps *dramatically* during daylight hours. I really like mine. Tony ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
"Brenda Ann" wrote in message ...
"donutbandit" wrote in message ... "King Pineapple" wrote in hlink.net: http://www.selectatenna.com/ Obviously, the receiver has no antenna input jack. Thus throw all the loop antenna suggestions out the window, unless you want to try and teach him how to make a ferrite bar coupling loop. People should take time to read thoroughly before they post solutions that won't work. The long wire inductively coupled is the best solution for his problem, not a loop or a new radio. The Select-a-Tenna (at least the model I have) works wonderfully on radios with no external antenna connections. Indeed, there is no way to connect it to the radio directly, you just set it by the radio and tune it. BA, Check-Out the "Select-A-Tenna" (SAT) Model 541-M SAT= http://www.selectatenna.com/ "This is the second generation of Select-A-Tenna. It has the same intrinsic +30dB signal strength improvement and features as the basic 541 model. In addition, a jack on the front panel allows the unit to be connected to either an outside long wire and ground, or as an alternative, directly connected to a radio's antenna and ground terminals when the radio has no internal ferrite rod antenna." iane ~ RHF .. .. |
"RHF" wrote in message om... Check-Out the "Select-A-Tenna" (SAT) Model 541-M SAT= http://www.selectatenna.com/ "This is the second generation of Select-A-Tenna. It has the same intrinsic +30dB signal strength improvement and features as the basic 541 model. In addition, a jack on the front panel allows the unit to be connected to either an outside long wire and ground, or as an alternative, directly connected to a radio's antenna and ground terminals when the radio has no internal ferrite rod antenna." Sweeeeeeet.... ya know, I could add that feature to my old 541, if I could once figure out how to open it up to add the few turns of wire to the ground end of the loop... but it appears the beastie is glued together.... (I could sure use a longwire connection to it, too.. AM reception inside our building runs from terrible to hideous to non-existant..) |
"Jim" wrote in message ...
You can build your own but it's actually not worth it. -- Ron Hardin I beg to differ about loops that you build are not worth it. I designed and built many MW loops that are as good or better in some ways that the Kiwa loop. The problems with homemade loops is poor construction. This link has pictures of loops that I built. http://www.frontiernet.net/~jadale/M...20Antennas.htm Jim I agree....My homemade loops are better for my uses than what you can buy. I can design any feature I want, and generally they are bigger and deliver more voltage than most storebought. I built two more loops yesterday just farting around. "Both for longwave". Maintaining balance is the secret to success. Also, I did an experiment on mine a couple of days ago. I've been using a simple coupling loop on mine lately, but do have a shielded coax coupling loop also. "IE: the coax shield is cut in the middle at the top". One had mentioned an advantage to using a shielded loop vs a non shielded. Well, I tried both feeding my 12 turn 16 inch round loop. No difference whatsoever in noise, or null depth. I had never noticed much difference with single loops of each type either if you were careful to detail. So far, I have not been able to see much of an advantage to a shielded loop vs unshielded as long as you are careful with balance. They seem to work about the same here. I'll never buy any antenna. For the prices they charge for a loop, I could build a house full of them, and do. I noticed the guy that makes the little wooden ones, and sells on e-bay got like about $85 for the one he listed recently. Good grief...Most of the money is for the fancy woodwork I assume..But electrically, his loops are inferior to my mine. Mine was free, except for the price of the wire. I know of no storebought loop that provides the exact performance of my usual "general use" 16 inch loop. IE: provides coverage from 500-2000 hz to include 160m. The freq coverage of the one on e-bay was less as an example. But I do agree on one thing. Properly built, a loop is a loop is a loop. If you have one that is working well on a certain freq, and has good nulls and enough voltage, there is little to gain by trying another one. My next project??? I wanna design a *small* terminated loop if it's possible. Kind of a rotatable *baby* K9AY loop. I'm not sure if it will work or not though. I'm wondering if it's feasable to terminate a normal multi-turn loop, and make it unidirectional by inserting a terminating resister on one side. I really need a ground point to tie the terminating resister to...Maybe not, as so far I have trouble making it work. If not, I'll try building a normal smaller K9AY outside I guess... Oh yea...A last comment...Long wires on MW are just great if you like 4 stations at one time...:/ A loop is much better if you want directivity and the ability to null out unwanted stations or noise. MK |
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"Mark Keith" wrote in message m... (RHF) wrote in message . com... - Fixed Capacitor(s) for single station tuning. Speaking of fixed caps...Some of my 160m buddies and buddetts are building loops for receive purposes. Some have wondered about caps....I've never tried it, but for fixed single freq use, I don't see why a length of coax couldn't be used. IE: lets say you had a loop that needed about 75 pf to tune. RG-8 is appx 30-31?? or so pf a foot. About a 3 ft piece *should* work. Or seems to me anyway...I prefer variables, but this coax cap method might could work for someone that needs a quicky cap, and has none at hand. MK The oscillator section of a standard AMBCB variable would be right in that range.. or, for cheap, quick and (not so) dirty, there are lots of 100pF mica trimmers available.. |
(I could
sure use a longwire connection to it, too.. AM reception inside our building runs from terrible to hideous to non-existant..) Out of curiousity Brenda Ann, what radio are you using for the BCB anf for SW? My loop doesn't really do that good a job on that GE P-780, works well on all the others, but not that one. But (from experience) if you could hook you a longwire, you'd be pleased I'm sure. |
"donutbandit" wrote in message ... "King Pineapple" wrote in hlink.net: http://www.selectatenna.com/ People should take time to read thoroughly before they post .. Yes, you really should. |
"Dxluver" wrote in message ... (I could sure use a longwire connection to it, too.. AM reception inside our building runs from terrible to hideous to non-existant..) Out of curiousity Brenda Ann, what radio are you using for the BCB anf for SW? My loop doesn't really do that good a job on that GE P-780, works well on all the others, but not that one. But (from experience) if you could hook you a longwire, you'd be pleased I'm sure. I sometimes use the P-780, but mostly I'm using a Pioneer tuner that I feed into our cable system for an FM signal on the tuner... but inside this place, even the 780 doesn't do well, because of all the QRM.. doesn't matter how good your receiver is, if it's not got a clean signal to start with, it can't reproduce one. |
I agree....My homemade loops are better for my uses than what you can
buy. I can design any feature I want, and generally they are bigger and deliver more voltage than most storebought. MK, would you mind emailing me? I have a question. |
but inside this
place, even the 780 doesn't do well, because of all the QRM.. Unbelievable, though I believe you. ;-) I've had that 780 in places and offices and one home that was absolutely he** for RF but the ole' GE P-780 handled it as it always has. *I think* the reason that rat sgack loop doesn't work with the GE P-780 is that it is so well made that it doesn't need a loop, all my other receivers get some kind of lift from my loop except that particular piece. That was what I read and was told by an old timer when he saw the 780, he said "wow, that battleship brings back memories, where in the world did you get one of them." lol We must have say out there for three hours listening to that radio and talking, he's in his 90's and just a super guy and he really thinks highly of that radio. BTW, thanks for being my 'dealer.' ;-) No....no...guys....no drugs involved. |
Telamon wrote in message
The shield is electrostatic and would only help against local noise (example - in the room computer) being the pickup loop. Yes, And I could tell no real difference from it to a unshielded loop. This assumes the unshielded loop is fairly well balanced though. If you had an un-tuned broadband amplified single turn shielded loop compared to one that was not shielded then you would expect to see a difference. I would think so. But so far I don't really see a drastic difference. Loop antenna is a broad term. Here are some features: 1. Small or large compared to the received wavelength. A small loop is directional inline with the windings. A large loop, broadside to the windings. 2. Shielded or not. Again, this is debatable as to the effectiveness...I consider it an option. 3. Single or multi turn and shape type example - pancake or solinoid. A pancake coil is directional broadside to the loop. A solenoid, inline with the loop. Or so I've read...So far, almost all of my small loops are solenoid type. I have thought about planting a big pancake coil on a door though... 4. Tuned or un-tuned. All small passive loops should be tuned. At the least, using the self resonant freq. With the cap, lower in freq... 5. Several ways to couple them to the receiver. I use normal coupling loops, both shielded, and unshielded as a test. I see no difference in results..I don't use preamps. Don't need em... Now you can mix and match the 5 above into many possibilities all with different tradeoffs. Thats what I'm doing here, but with not always the results I want... IE: I made a 45 turn LW loop that I hang up against my usual 16 turn MW loop. I used the same cap for each loop, by using a switch. It worked great on both "bands". Didn't mess up the MW loop. So then, I decided to wind a LW loop on the same frame hoping for the same results. The LW worked fine, but the MW was detuned. So I just now ripped all the LW turns back off and will go back to the previous method with a bit more separation between the windings. I'm rigging mine up to cover from about 150hz to 2000 hz in two steps. "coils". This lets me use the same cap for both, and I don't have to tack on extra fixed caps for LW. But I still want to build some type of unidirectional rotatable small loop. In messing with the LW loops, I have discovered something about my radio I hadn't noticed. "IC-706mk2g". Although it tunes down to 30 cycles, the radio goes pretty dead below about 150 cycles. Not the greatest LW radio in the world for real low freq's...:( It's ok from about 175 hz, up.. MK |
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The main reason I like to keep it on the group is if I lay a clam,
someone will usually correct me. huh, OK. |
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RHF , have you tested this antenna over a australian loop?
MY asutralian loop ( ie a 1 x 1 sqm x 7 woulnds ) ofered possibly more than 30 db gain [i have not any ability to measure the signal level !) ] over the standard radio loop no matter which is ( degen 1102 , Khibo C300 , Bolong and other poket radios I use) I could listen in mid day ( 3-5 LT) in Thessaloniki N Greece even a french station on ca. 600 kHz with 500 kW On 1 Mar 2004 13:35:31 -0800, (RHF) wrote: "B BA, Check-Out the "Select-A-Tenna" (SAT) Model 541-M SAT= http://www.selectatenna.com/ "This is the second generation of Select-A-Tenna. It has the same intrinsic +30dB signal strength improvement and features as the basic 541 model. In addition, a jack on the front panel allows the unit to be connected to either an outside long wire and ground, or as an alternative, directly connected to a radio's antenna and ground terminals when the radio has no internal ferrite rod antenna." iane ~ RHF . . |
RHF , have you tested this antenna over a australian loop?
MY asutralian loop ( ie a 1 x 1 sqm x 7 woulnds ) ofered possibly more than 30 db gain [i have not any ability to measure the signal level !) ] over the standard radio loop no matter which is ( degen 1102 , Khibo C300 , Bolong and other poket radios I use) I could listen in mid day ( 3-5 LT) in Thessaloniki N Greece even a french station on ca. 600 kHz with 500 kW On 1 Mar 2004 13:35:31 -0800, (RHF) wrote: "B BA, Check-Out the "Select-A-Tenna" (SAT) Model 541-M SAT= http://www.selectatenna.com/ "This is the second generation of Select-A-Tenna. It has the same intrinsic +30dB signal strength improvement and features as the basic 541 model. In addition, a jack on the front panel allows the unit to be connected to either an outside long wire and ground, or as an alternative, directly connected to a radio's antenna and ground terminals when the radio has no internal ferrite rod antenna." iane ~ RHF . . |
ZL,
I have made several Loop Antennas in the One Meter Square Size range. IIRC: Two Loops one smaller and the other larger; that are built with the same care and materials would have the same 'relative' Gain with respect to their Peak Signal and ability to Null a Signal. (Both Loop Antennas would have about the same "Q" Number.) AUSTRALIAN ONE METER SQUARE Loop Antenna = 10,000 cm Sq. A larger Loop Antenna has a greater Signal Capture Area and usually this results in a higher Signal Outout. * The Australian 1 Metre Loop from Hard-Core-DX.Com - by Werner Funkenhauser http://www.hard-core-dx.com/nordicdx...op/1mloop.html * Bigger Image of the "Australian 1 Metre Loop" http://www.hard-core-dx.com/nordicdx...op/rnloop1.gif * The One Meter (3-4Ft) Loop Antennas all perform really good, but they are big and need a lot of space to position them and operate them. SELECT-A-TENNA [Twelve Inch Round] Loop Antenna = 730 cm Sq. A smaller Loop Antenna has a small Signal Capture Area and usually this results in a small Signal Outout. * Check-Out the "Select-A-Tenna" (SAT) Model 541-M SAT= http://www.selectatenna.com/ * The smaller Loop Antennas like the Select-A-Tenna perform very well, plus they are easier to use and simply more portable. THE NUMBERS: Based upon the above two numbers for the Australian One Meter Square Loop Antenna -=V=- the Select-A-Tenna [Twelve Inch Round] Loop Antenna the relative areas of the Loops are ruffly (10,000/730) 14 to 1. What this means that the Australian One Meter Square Loop Antenna will have a Higher Signal Level (Output) and because of it's greater Signal Capture Area this would result in less apparent fading of the signal when using it vice the Select-A-Tenna. RANGE: Estimated usable DXing Ranges of these two Loop Antennas. * Australian One Meter Square Loop Antenna = 2775 Km (1750 Miles) * Select-A-Tenna [Twelve Inch Round] Loop Antenna = 750Km (475 Miles) IMPROVING THE "Q" OF THE LOOPS: * One thing that can 'improve' the "Q" of a Loop Antenna is to Replace the wire used in the Loop with LITZ Wire. * Another thing is to reduce the "Spacing" between the Loop Turns. The Australian One Meter Square Loop Antenna plans call fo 12mm (1/2") Spacing you mite try reducing this to 9mm (3/8"). LOOP ANTENNA HELP: * "Loop Antenna Information Forum" eGroup on YAHOO ! LOOPS= http://groups.yahoo.com/group/loopantennas/ * "Ferrite Rod Antenna Experimenters" eGroup on YAHOO ! http://groups.yahoo.com/group/FerriteRodAntenna/ * "Shortwave SWL Antenna" eGroup on YAHOO ! SWL= http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ .. .. iane ~ RHF .. Some Say: On A Clear Day You Can See Forever. http://groups.yahoo.com/group/Shortw...na/message/502 I BELIEVE: On A Clear Night... You Can Hear Forever and Beyond - The Beyond ! .. .. = = = Zach Liang wrote in message = = = . .. RHF , have you tested this antenna over a australian loop? MY asutralian loop ( ie a 1 x 1 sqm x 7 woulnds ) ofered possibly more than 30 db gain [i have not any ability to measure the signal level !) ] over the standard radio loop no matter which is ( degen 1102 , Khibo C300 , Bolong and other poket radios I use) I could listen in mid day ( 3-5 LT) in Thessaloniki N Greece even a french station on ca. 600 kHz with 500 kW On 1 Mar 2004 13:35:31 -0800, (RHF) wrote: "B BA, Check-Out the "Select-A-Tenna" (SAT) Model 541-M SAT= http://www.selectatenna.com/ "This is the second generation of Select-A-Tenna. It has the same intrinsic +30dB signal strength improvement and features as the basic 541 model. In addition, a jack on the front panel allows the unit to be connected to either an outside long wire and ground, or as an alternative, directly connected to a radio's antenna and ground terminals when the radio has no internal ferrite rod antenna." iane ~ RHF .. |
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