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Impedance of pull-up whip on SW Receiver?
I have a Grundig YB-500 (Yacht Boy 500) shortwave portable. I frequently take it to remote locations with me and have enjoyed the radio for years. It has a short pull up whip antenna, all I have done in the past is to slingshot a long wire into a tree and use a clip lead to attach it to the pull-up whip (no external ant connections on the radio).
I was wondering what the impedance the collapsed whip would present, and what sort or a balun/auto-transformer could be used between a longwire (or other ant), gnd and the pull-up whip to improve reception... .... anyone ever done any experimenting or unique ideas? Warmest regards, John C. Smith -- Watching the cutting edge of yesterday replay--in virtual reality, right before my eyes--in real time! Thirty year old technology--wasn't it amazing? |
On Sat, 28 May 2005 20:35:59 -0700, "John Smith"
wrote: This is a multi-part message in MIME format. Boring. I was wondering what the impedance the collapsed whip would present, and = Hi Brett, Depends on the frequency. EZNEC would answer that in a heartbeat. Given your preference for backing into problem, at 10MHz, at 1M in length, 1 - J 1Kohms. what sort or a balun/auto-transformer could be used between a longwire = (or other ant), gnd and the pull-up whip to improve reception... Aw c'mon now, Google will give you this in another heartbeat. ... anyone ever done any experimenting or unique ideas? Pons and Fleishman comes to mind - with many imitators.... 73's Richard Clark, KB7QHC |
Hmmm, I have googled Richard... but not found anything other than standard baluns/auto-transformers and all too boring methods of using them... and yes, I could go expermenting on my own with these--was mainly hoping someone has walked this path before and already gleaned the best method, or at least could get me ranting, raving and thinking!!! grin My bark is MUCH worse than my bite yanno....
I didn't mean what the capacitve reactance of the pull-up whip was--itself, I meant to mean the input impedance which the input at the bottom of that whip expected to see... It seems obivious they have provided some +J Ohms just past the bottom of that whip (or maybe not?)... however, input be high impedance and 1K+ ohms--and some non-reactive load could be assumed to be expected by it? Warmest regards, John "Richard Clark" wrote in message ... On Sat, 28 May 2005 20:35:59 -0700, "John Smith" wrote: This is a multi-part message in MIME format. Boring. I was wondering what the impedance the collapsed whip would present, and = Hi Brett, Depends on the frequency. EZNEC would answer that in a heartbeat. Given your preference for backing into problem, at 10MHz, at 1M in length, 1 - J 1Kohms. what sort or a balun/auto-transformer could be used between a longwire = (or other ant), gnd and the pull-up whip to improve reception... Aw c'mon now, Google will give you this in another heartbeat. ... anyone ever done any experimenting or unique ideas? Pons and Fleishman comes to mind - with many imitators.... 73's Richard Clark, KB7QHC |
Well, leave it to me--said that all wrong and only caught it on the re-read--which--naturally--I did AFTER posting...
I should have made it apparent that whatever ant I hook to it, will, of course--have to mimic that capacitive reactance you mentioned... Warmest regards, John "John Smith" wrote in message ... Hmmm, I have googled Richard... but not found anything other than standard baluns/auto-transformers and all too boring methods of using them... and yes, I could go expermenting on my own with these--was mainly hoping someone has walked this path before and already gleaned the best method, or at least could get me ranting, raving and thinking!!! grin My bark is MUCH worse than my bite yanno.... I didn't mean what the capacitve reactance of the pull-up whip was--itself, I meant to mean the input impedance which the input at the bottom of that whip expected to see... It seems obivious they have provided some +J Ohms just past the bottom of that whip (or maybe not?)... however, input be high impedance and 1K+ ohms--and some non-reactive load could be assumed to be expected by it? Warmest regards, John "Richard Clark" wrote in message ... On Sat, 28 May 2005 20:35:59 -0700, "John Smith" wrote: This is a multi-part message in MIME format. Boring. I was wondering what the impedance the collapsed whip would present, and = Hi Brett, Depends on the frequency. EZNEC would answer that in a heartbeat. Given your preference for backing into problem, at 10MHz, at 1M in length, 1 - J 1Kohms. what sort or a balun/auto-transformer could be used between a longwire = (or other ant), gnd and the pull-up whip to improve reception... Aw c'mon now, Google will give you this in another heartbeat. ... anyone ever done any experimenting or unique ideas? Pons and Fleishman comes to mind - with many imitators.... 73's Richard Clark, KB7QHC |
On Sat, 28 May 2005 21:16:48 -0700, "John Smith"
wrote: Well, leave it to me--said that all wrong and only caught it on the re-read--which--naturally--I did AFTER posting... I should have made it apparent that whatever ant I hook to it, will, of course--have to mimic that capacitive reactance you mentioned... Warmest regards, John "John Smith" wrote in message ... Hmmm, I have googled Richard... but not found anything other than standard baluns/auto-transformers and all too boring methods of using them... and yes, I could go expermenting on my own with these--was mainly hoping someone has walked this path before and already gleaned the best method, or at least could get me ranting, raving and thinking!!! grin My bark is MUCH worse than my bite yanno.... I didn't mean what the capacitve reactance of the pull-up whip was--itself, I meant to mean the input impedance which the input at the bottom of that whip expected to see... It seems obivious they have provided some +J Ohms just past the bottom of that whip (or maybe not?)... however, input be high impedance and 1K+ ohms--and some non-reactive load could be assumed to be expected by it? Warmest regards, John "Richard Clark" wrote in message ... On Sat, 28 May 2005 20:35:59 -0700, "John Smith" wrote: This is a multi-part message in MIME format. Boring. I was wondering what the impedance the collapsed whip would present, and = Hi Brett, Depends on the frequency. EZNEC would answer that in a heartbeat. Given your preference for backing into problem, at 10MHz, at 1M in length, 1 - J 1Kohms. what sort or a balun/auto-transformer could be used between a longwire = (or other ant), gnd and the pull-up whip to improve reception... Aw c'mon now, Google will give you this in another heartbeat. ... anyone ever done any experimenting or unique ideas? Pons and Fleishman comes to mind - with many imitators.... 73's Richard Clark, KB7QHC |
On Sat, 28 May 2005 21:16:48 -0700, "John Smith"
wrote: This is a multi-part message in MIME format. This is still boring. Well, leave it to me--said that all wrong and only caught it on the = re-read--which--naturally--I did AFTER posting... I should have made it apparent that whatever ant I hook to it, will, of = course--have to mimic that capacitive reactance you mentioned... And you had to post a 170 line message to pass on 4 lines of information? This goes from boring to lazy. The capacitive reactance comes free with the whip. You will drum up a 100 responses on what's better - what is odder is that all those great ideas haven't become ordinary after 50 years or more. And after, what, 17 - 18 years? no one's figured out how to power NYC with a Zippo's full of cold fusion either. Strange thing about invention - doesn't seem to work all the time (or worse, anytime). 73's Richard Clark, KB7QHC |
Sorry to disappoint you John.
Nobody has ever made a significant improvement using aligator clips, lengths of wire and baluns on a portable whip receiver. Except, if lucky, merely by chance on one band at the expense of the others. You may, however, hear a bunch of claims, e.g., by CB-ers and plagiarising old-wives, based on imagination and wishful thinking. Signal to noise ratio is what matters. And that's an uncontrollable function of the incoming signals and noise. the ionosphere, and of the receiver itself. However, it's quite interesting to experiment with longer antennas. Obtain a circuit diagram of the receiver and try to predict what will happen - if anything. A most elementary circuit analysis is all that's needed. Otherwise you will be working entirely in the dark. Clear your head and forget about a balun. You must have been reading the wrong magazines articles. You are dealing with an unbalanced-to-unbalanced, very high impedance-to-high impedance situation. Consider a ground conection to the receiver chassis. This lowers the impedance to more predictable values. OK if you are located conveniently near to a domestic plumbing system. But even a short rod in good soil will have some effect for either better or worse. If you insist, signal to noise ratio MIGHT be improved by using a single adjustable LC tuned circuit as a pre-selector in conjunction with a length of wire and a ground connection of some sort. But it might have an adverse effect. My guess is that you will end up with a new, Japanese, very expensive, battery-operated, communications-grade receiver at the end of a 100-feet length of 18-gauge magnet wire. Even if the wire is just strewn on the ground. Wait a bit and Chinese, equally good, 1/2-price versions may become available. Economics provide the foundations of all engineering. If you don't understand economics then you don't understand anything. Not even SWR or the portion of a dipole from which most of the radiation is supposed to occur. ---- Regards, Reg. |
JS,
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Try clipping the pull-out antenna to a ground rod.
For some reason, that seems to work better than a long slingshot. I tried Slingshot -kiddie antennas once and found a ground wire works better for portables. ;-) |
Hal:
You embarrass me... I am a "slingshot kiddies" (kinda of did get tied up shooting a few rocks with the slingshot too--can't deny it--still a boy deep inside)... frown .... but hey, at least I am past the denial part! grin That sounds weird, grounding the antenna, but hey, I am ready to be made a fool of in the pursuit of knowledge--it that's what it takes... I'll give it a shot! If it isn't all a "joke", perhaps the length of the ground wire can be manipulated to benefit... heck, I'll even slingshot a longwire over the tallest tree I can find and ground the other end! Warmest regards, John "Hal Rosser" wrote in message .. . Try clipping the pull-out antenna to a ground rod. For some reason, that seems to work better than a long slingshot. I tried Slingshot -kiddie antennas once and found a ground wire works better for portables. ;-) |
.... and will really try your suggestion...
.... but, I was looking for something I could also "McGuiver"(sp?) to work on the next cruise ship... longwires are great for camping... hard to find trees on those ships... .... kinda afraid what the captain will say when he sees me on deck--slingshot in hand looking around at the booms and masts... dropping something down the porthole might work... and I do suppose sal****er is some sort of ground... grin Warmest regards, John "Hal Rosser" wrote in message .. . Try clipping the pull-out antenna to a ground rod. For some reason, that seems to work better than a long slingshot. I tried Slingshot -kiddie antennas once and found a ground wire works better for portables. ;-) |
In article ,
Richard Clark wrote: On Sun, 29 May 2005 08:51:22 -0700, "John Smith" wrote: This is a multi-part message in MIME format. 119 Line response to a 25 line post, and with only 6 lines of new content. Snip He responded to your post that way because you are full of it. Most of what you posted is either wrong, off topic or unhelpful. Take your pick. Just about anyone reading rec.radio.shortwave has connected some wire to a portable radio and gotten an improvement in being able to hear a weak signal. About the only right, on topic comment you made out of a long post was about signal to noise being most important factor in the receiving antenna system. AND... I'm not somebody's old wife. I'm not a CB'er. I have a clear head. I understand how BALUNs work. I did not imagine it or indulge in wishful thinking and the improvement wasn't just by chance. I'm not waiting to buy a Chinese portable. I understand the economics of electronic engineering. Since most of your 119 line post is pure disregard for anyone else's experience or opinion I may have missed some. If you can't make a non condescending on topic post then go away please. -- Telamon Ventura, California |
Telamon:
Don't take offense to Richard, believe it or not, I have kinda grown to like his banter, do you like Shakespeare? Richard does that to... all joking aside, Richard is ok, he is just different... But, thanks for your post... I am glad others have "wondered" my "wonders" and experimented as I... Warmest regards, John "Telamon" wrote in message ... In article , Richard Clark wrote: On Sun, 29 May 2005 08:51:22 -0700, "John Smith" wrote: This is a multi-part message in MIME format. 119 Line response to a 25 line post, and with only 6 lines of new content. Snip He responded to your post that way because you are full of it. Most of what you posted is either wrong, off topic or unhelpful. Take your pick. Just about anyone reading rec.radio.shortwave has connected some wire to a portable radio and gotten an improvement in being able to hear a weak signal. About the only right, on topic comment you made out of a long post was about signal to noise being most important factor in the receiving antenna system. AND... I'm not somebody's old wife. I'm not a CB'er. I have a clear head. I understand how BALUNs work. I did not imagine it or indulge in wishful thinking and the improvement wasn't just by chance. I'm not waiting to buy a Chinese portable. I understand the economics of electronic engineering. Since most of your 119 line post is pure disregard for anyone else's experience or opinion I may have missed some. If you can't make a non condescending on topic post then go away please. -- Telamon Ventura, California |
On Sun, 29 May 2005 21:15:15 GMT, Telamon
wrote: About the only right, on topic comment you made out of a long post was about signal to noise being most important factor in the receiving antenna system. Hi OM, That was not me, and given that inaccuracy in reporting (says something doesn't it?) makes the following suspect: AND... I'm not somebody's old wife. I'm not a CB'er. I have a clear head. I understand how BALUNs work. I did not imagine it or indulge in wishful thinking and the improvement wasn't just by chance. I'm not waiting to buy a Chinese portable. I understand the economics of electronic engineering. Since most of your 119 line post is pure disregard for anyone else's experience or opinion I may have missed some. This last comment of course, is prophetic by example with an obvious negative expectation. ;-) If you can't make a non condescending on topic post then go away please. 73's Richard Clark, KB7QHC |
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You don't like the "stationary" waaaaa....
grin Warmest regards, John "Hal Rosser" wrote in message . .. I was outdoors with a portable radio - I happened to walk under one of those telephone-pole guy wires and the signal increased dramatically. It increaded more when I placed the telescoping antenna on the guy wire. it was magic by the way - you oughta change your do-hickie program to send text-only instead of html to the newsgroup ======== then the script-kiddies wrote a virus in c it was a fast virus -zoooom === ==== |
Michael:
What is your disability, why you can't work--mental? Warmest regards, John "Michael A. Terrell" wrote in message ... Hal Rosser wrote: I was outdoors with a portable radio - I happened to walk under one of those telephone-pole guy wires and the signal increased dramatically. It increaded more when I placed the telescoping antenna on the guy wire. it was magic by the way - you oughta change your do-hickie program to send text-only instead of html to the newsgroup ======== then the script-kiddies wrote a virus in c it was a fast virus -zoooom === ==== One good thing about his HTML. He uses a tiny font that I can't see well enough to read. I guess he's here mouthing off after the way they told him off in one of the rec.radio newsgroups. -- Former professional electron wrangler. Michael A. Terrell Central Florida |
Actually, it may be, and it may have had nothing to do with that guy
wire/ground wire you were visually looking at (well, not directly--and it serving as an antenna)... in the presence of VERY STRONG magnetic fields, rf fields can be dramatically warped and rf fields bent and focused... and, it is not uncommon to find hundreds of amps (in some instances thousands have been recorded), at a very low voltage, around such poles... but that is a whole different story which has not been investigated well yet... Warmest regards, John "Hal Rosser" wrote in message . .. I was outdoors with a portable radio - I happened to walk under one of those telephone-pole guy wires and the signal increased dramatically. It increaded more when I placed the telescoping antenna on the guy wire. it was magic by the way - you oughta change your do-hickie program to send text-only instead of html to the newsgroup ======== then the script-kiddies wrote a virus in c it was a fast virus -zoooom === ==== |
Don't mind teleprobe....I've dealt with him before.
When you look up rectal probe in the dictionary, you find his picture.....He oft complains about RRAA being a crib of inbred morons, but who do I now see here at RRAA acting a total fool..... ""I don't like him one bit. I think he is a waste of time. He posts in a number of news groups that interest me and is the reason I don't post in any of them. "" Sheesh.... What a chicken@*$% whiner....I don't really care for Telamon too awful much either, but you don't see me whining about it, or avoiding his usual roost of r.r. shortwave....I just ignore him. I don't killfile anyone. Killfiles are for girly men that can't deal with confrontation. Telly said he killfiled me months ago, so he shouldn't be able to see any of this message.... MK |
naaaa, takes all types to run a world... but you are right, I hope he
is a "girly man" and will kill file me... grin Warmest regards, John wrote in message oups.com... Don't mind teleprobe....I've dealt with him before. When you look up rectal probe in the dictionary, you find his picture.....He oft complains about RRAA being a crib of inbred morons, but who do I now see here at RRAA acting a total fool..... ""I don't like him one bit. I think he is a waste of time. He posts in a number of news groups that interest me and is the reason I don't post in any of them. "" Sheesh.... What a chicken@*$% whiner....I don't really care for Telamon too awful much either, but you don't see me whining about it, or avoiding his usual roost of r.r. shortwave....I just ignore him. I don't killfile anyone. Killfiles are for girly men that can't deal with confrontation. Telly said he killfiled me months ago, so he shouldn't be able to see any of this message.... MK |
Hal:
Fixed the outlook, seems a sticky bit of bad script was always resetting my "plain text" setting back to html... was a bugger to trace down and get rid of... all spyware/virus scanners here would not detect it... thanks for bearing with me... Warmest regards, John "Hal Rosser" wrote in message . .. I was outdoors with a portable radio - I happened to walk under one of those telephone-pole guy wires and the signal increased dramatically. It increaded more when I placed the telescoping antenna on the guy wire. it was magic by the way - you oughta change your do-hickie program to send text-only instead of html to the newsgroup ======== then the script-kiddies wrote a virus in c it was a fast virus -zoooom === ==== |
No, I can barely walk using a cane, I'm nearly blind, I have severe carpal tunnel in both wrists, nerve damage in my left arm, diabetes and high blood pressure along with tinitus so bad that the whistling wakes me up. What's your excuse? -- Former professional electron wrangler. Michael A. Terrell Central Florida |
Well, lay off the pain medication man, it mess with your attitude--but,
by the way--I take no pleasure in your illness--hope it improves.... no matter our disagreements, I take NO pleasure in anothers' misfortunes and/or illness... frown Warmest regards, John "Michael A. Terrell" wrote in message ... No, I can barely walk using a cane, I'm nearly blind, I have severe carpal tunnel in both wrists, nerve damage in my left arm, diabetes and high blood pressure along with tinitus so bad that the whistling wakes me up. What's your excuse? -- Former professional electron wrangler. Michael A. Terrell Central Florida |
JS,
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John Smith wrote:
You don't like the "stationary" waaaaa.... Is HTML considered to be an ASCII file? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
John Smith wrote:
Actually, it may be, and it may have had nothing to do with that guy wire/ground wire you were visually looking at (well, not directly--and it serving as an antenna)... Some traveling-wave antennas are wired "directly" to ground at the far end. We are dealing with distributed RF networks, not DC circuits. A DC ground wire 1/4WL long is usually NOT an RF ground at all. If one installs artificial ground circuitry between the radio antenna and the ground rod, one can either attenuate the signal or not depending upon the settings of the artificial ground. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
John Smith wrote:
Well, lay off the pain medication man, it mess with your attitude--but, by the way--I take no pleasure in your illness--hope it improves.... no matter our disagreements, I take NO pleasure in anothers' misfortunes and/or illness... frown Warmest regards, John I don't take any pain medication. The strongest one I was prescribed was Naproxen, but the doctor switched it to prescription Tylenol which is useless so I don't take anything. -- Former professional electron wrangler. Michael A. Terrell Central Florida |
I think I got it now Cecil, my newsreader kept changing and setting
settings, it would keep turning back on html instead of plain text, and turn on a "stationary" back ground (pretty pictures)--it would just ignore sending the message in plain text... a file msfix.xml had set an "email template" to do this, I have two outlooks, reg outlook and outlook2002--because on installing office XP, one sending though another--won't bore you with more details--deleting that file cured it... I think I picked up something from my "fans" which email me... it happens and I learned something... grin Warmest regards, John "Cecil Moore" wrote in message ... John Smith wrote: You don't like the "stationary" waaaaa.... Is HTML considered to be an ASCII file? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
In article ,
"John Smith" wrote: Telamon: Oh by all means, kill file!, someone as important as you has much better things to be doing--be on your way man... don't bother with this dribble! Frankly man, I think you should look for a "Killfile Whole World" button--sounds as if that is more to your liking... This is a typical Trolling response. "I don't care if I'm obnoxious in some way I'll keep doing whatever I want to do." I would appricate you not cross posting from -- Telamon Ventura, California |
In article ,
"John Smith" wrote: Telamon: Oh by all means, kill file!, someone as important as you has much better things to be doing--be on your way man... don't bother with this dribble! Frankly man, I think you should look for a "Killfile Whole World" button--sounds as if that is more to your liking... No I just kill file the trouble makers not the "Whole World." -- Telamon Ventura, California |
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In article
, Telamon wrote: In article , "John Smith" wrote: Telamon: Oh by all means, kill file!, someone as important as you has much better things to be doing--be on your way man... don't bother with this dribble! Frankly man, I think you should look for a "Killfile Whole World" button--sounds as if that is more to your liking... This is a typical Trolling response. "I don't care if I'm obnoxious in some way I'll keep doing whatever I want to do." I would appricate you not cross posting from rec.radio.amateur.antenna -- Telamon Ventura, California |
Telamon:
A troll is NOT someone who disagrees with you... get it right... Start your own newsgroup, "rec.Telamon's.Good.Buddies." Or else, learn to stop being a control freak and that you have to get along with varying opinions and other people in the world... the world you envision has us all in each of our separate newsgroups of ONE, with everyone there in agreement with us--GET REAL! ... your vision sucks!... .... I can already tell, if you ever count on us agreeing--you have a looooooooong wait ahead... Warmest regards, John "Telamon" wrote in message ... In article , "John Smith" wrote: Telamon: Oh by all means, kill file!, someone as important as you has much better things to be doing--be on your way man... don't bother with this dribble! Frankly man, I think you should look for a "Killfile Whole World" button--sounds as if that is more to your liking... This is a typical Trolling response. "I don't care if I'm obnoxious in some way I'll keep doing whatever I want to do." I would appricate you not cross posting from -- Telamon Ventura, California |
Telemon:
Let me see, I just looked up "Trouble Maker" in the dictionary I have here at hand, titled, "Telemon's Dictionary--3rd Edition." "Trou*ble ma*ker -- One who does not agree with the GREAT Telemon" To that I say, "PI$$ on it." Anyone in agreement with the definition should get some backbone! Warmest regards, John "Telamon" wrote in message ... In article , "John Smith" wrote: Telamon: Oh by all means, kill file!, someone as important as you has much better things to be doing--be on your way man... don't bother with this dribble! Frankly man, I think you should look for a "Killfile Whole World" button--sounds as if that is more to your liking... No I just kill file the trouble makers not the "Whole World." -- Telamon Ventura, California |
Telemon:
"I would appreciate you not cross posting from rec.radio.amateur.antenna" I'd appreciate it if you would go on about your business and quit "control freaking" others you don't agree with! Warmest regards, John "Telamon" wrote in message ... In article , Telamon wrote: In article , "John Smith" wrote: Telamon: Oh by all means, kill file!, someone as important as you has much better things to be doing--be on your way man... don't bother with this dribble! Frankly man, I think you should look for a "Killfile Whole World" button--sounds as if that is more to your liking... This is a typical Trolling response. "I don't care if I'm obnoxious in some way I'll keep doing whatever I want to do." I would appricate you not cross posting from rec.radio.amateur.antenna -- Telamon Ventura, California |
You are just one of a small group of people that occupy a few
newsgroups at everyone else's expense. You are as full of crap as a xmas turkey. If you don't think the small click of people you belong to does not drive other people away from contributing to the amateur news groups you have a big surprise coming. I don't belong to a "click"....I'm a big boy. I'll laugh at your goofy ass all by myself. I don't need others help. I'm not interested in "dealing" with obnoxious people like you Good. Crawl back in your telahole, and I'll let you know if I need to hear from you again. Jeez....What a preenus.... MK |
yeah! what MK said! grin
Warmest regards, John wrote in message oups.com... You are just one of a small group of people that occupy a few newsgroups at everyone else's expense. You are as full of crap as a xmas turkey. If you don't think the small click of people you belong to does not drive other people away from contributing to the amateur news groups you have a big surprise coming. I don't belong to a "click"....I'm a big boy. I'll laugh at your goofy ass all by myself. I don't need others help. I'm not interested in "dealing" with obnoxious people like you Good. Crawl back in your telahole, and I'll let you know if I need to hear from you again. Jeez....What a preenus.... MK |
.... hmmm, what is that "klicking" sound... roflol
Warmest regards, John "John Smith" wrote in message ... yeah! what MK said! grin Warmest regards, John wrote in message oups.com... You are just one of a small group of people that occupy a few newsgroups at everyone else's expense. You are as full of crap as a xmas turkey. If you don't think the small click of people you belong to does not drive other people away from contributing to the amateur news groups you have a big surprise coming. I don't belong to a "click"....I'm a big boy. I'll laugh at your goofy ass all by myself. I don't need others help. I'm not interested in "dealing" with obnoxious people like you Good. Crawl back in your telahole, and I'll let you know if I need to hear from you again. Jeez....What a preenus.... MK |
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Without a ground connected to a battery-operated portable receiver,
for example via the earphone socket, the input impedance at the antenna socket is umpteen thousand ohms. So it doesn't matter very much what you do about the whip. But you knew that before you asked the question. So why ask it? ;o) I would guess, in your younger days, you were a gifted, over-active little boy who asked questions with a motive always different from the obvious one. It is indeed a very useful technique for gaining information about which the subject may be reluctant to divulge. Perhaps you should have been employed as a WMD inspector to discover that none existed years before Saddam confessed that he never had any and had never possessed the facilities to manufacture them. But it's a dangerous occupation. The senior British WMD Inspector committed suicide shortly after blowing the whistle - or so the story goes. ;o) ;o) ;o) ;o) Whilst on the subject of whip antennas you may be interested to run program WHIP_1 which analyses performance, from transmitter to receiver input, of a typical vehicle-mounted whip + un-un transformer + coax line + receiver. ---- .................................................. .......... Regards from Reg, G4FGQ For Free Radio Design Software go to http://www.btinternet.com/~g4fgq.regp .................................................. .......... |
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