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#1
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On Mon, 1 Aug 2005 14:14:25 -0700, "John Smith"
wrote in : Frank: Obviously you need to go back and read his original post, all the other guys here got it I think... Look, you are now just standing there like an idiot with his pants pulled down... Blah, blah, blah. Stay on topic. Once again, where did he say he was being "forced" to use any type of matching device? Where did he say his SWR was 5:1? And why can't you address the fact that millions of CBers don't use a matchbox yet don't blow their finals? ----== 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 =---- |
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#2
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Frank:
Go home fool, there isn't anyone left here now wondering if you are a ma'roon, you have shown all... you can hang around and try to trick the newcomers, I guess... John "Frank Gilliland" wrote in message ... On Mon, 1 Aug 2005 14:14:25 -0700, "John Smith" wrote in : Frank: Obviously you need to go back and read his original post, all the other guys here got it I think... Look, you are now just standing there like an idiot with his pants pulled down... Blah, blah, blah. Stay on topic. Once again, where did he say he was being "forced" to use any type of matching device? Where did he say his SWR was 5:1? And why can't you address the fact that millions of CBers don't use a matchbox yet don't blow their finals? ----== 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 =---- |
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#3
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On Mon, 1 Aug 2005 14:31:01 -0700, "John Smith"
wrote in : Frank: Go home fool, there isn't anyone left here now wondering if you are a ma'roon, you have shown all... you can hang around and try to trick the newcomers, I guess... Let's try this again, but this time I'll seperate the issues so you don't get confused: 1) Where did the original poster say he was being "forced" to use any type of matching device? 2) Where did the original poster say his SWR was 5:1? 3) Since very few CBers use a matchbox, why don't the millions of other CB radios have blown finals? Now is -that- too hard for you to comprehend? You made the claims, now back them up. ----== 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 =---- |
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#4
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Frank:
FOOL!!! His original post makes ALL of that clear, if not, one or two of his other posts after will fill you in... John "Frank Gilliland" wrote in message ... On Mon, 1 Aug 2005 14:31:01 -0700, "John Smith" wrote in : Frank: Go home fool, there isn't anyone left here now wondering if you are a ma'roon, you have shown all... you can hang around and try to trick the newcomers, I guess... Let's try this again, but this time I'll seperate the issues so you don't get confused: 1) Where did the original poster say he was being "forced" to use any type of matching device? 2) Where did the original poster say his SWR was 5:1? 3) Since very few CBers use a matchbox, why don't the millions of other CB radios have blown finals? Now is -that- too hard for you to comprehend? You made the claims, now back them up. ----== 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 =---- |
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#5
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On Mon, 1 Aug 2005 14:46:55 -0700, "John Smith"
wrote in : Frank: FOOL!!! His original post makes ALL of that clear, if not, one or two of his other posts after will fill you in... Well, let's find out just what he said, shall we? ===== On Sat, 30 Jul 2005 11:45:50 -0500, driver42 wrote in : Hi, If I'm not able to set the SWR in the trucks that I drive will it hurt the radio or just give me decreased range? ===== I don't see anything about a 5:1 SWR. I don't see anything about being "forced" to use a matching device. Now is a good time to dispell more CB mythology: Many of you already know that in order to double your range you need -four- times the power. But it also works the other way -- if you reduce your power to one fourth (i.e, you are losing 3/4 of your power, which would mean a pretty high SWR) you have -only- decreased your range by one half. So an SWR of 2:1 or 3:1 (or, conversely, squeezing a couple extra watts with a tweak-n-peak) isn't going to have a noticable effect on your range. Let's continue with the scenario that you are losing 3 watts (3/4 of your power) due purely to reflection. Ok, so that power gets dumped back into the final where it's dissipated as heat. That's three extra watts in a transistor conservatively rated to handle a certain amount of -continuous- heat dissipation, which is usually something along the lines of 4 watts. Mind you that 3 or 4 watts isn't a whole lot of power; if the heat sink can handle 4 watts without a problem then an extra 3 watts isn't exactly going to melt the knobs. Regardless, the final -isn't- dissipating this heat continuously (unless the OP is one of those asshole broadcast types that keys down for half an hour), so normal operation certainly isn't going to "cook" the transistor. And I already mentioned that these transistors are rated to handle 30:1 SWR -continuously- without damage. If you want proof of these FACTS then feel free to refer to the data sheets for the final transistors most commonly used in CB finals. ===== On Sat, 30 Jul 2005 13:27:48 -0500, driver42 wrote in : My problem is that I'll be moving from truck to truck so I wont have time to set the SWR correctly. Most of our trucks have factory installed double antenna's which I'm not too thrilled about. ===== I don't see anything about a 5:1 SWR. I don't see anything about being "forced" to use a matching device. Looks to me like he said the trucks already have antennas installed. Assuming they are CB antennas, it's more than likely that the antennas have already been trimmed for use with a 50-ohm radio (since all CB radios are 50-ohm radios). Unless something is broke, the antennas are probably going to give a reasonably good match to -whatever- radio he picks (because, once again, all CB radios are 50-ohm radios). ===== On Sat, 30 Jul 2005 21:33:43 -0500, driver42 wrote in : My problem is that I'll be in a different truck everyday and wont be able to set the SWR the way I want to. ===== I don't see anything about a 5:1 SWR. I don't see anything about being "forced" to use a matching device. What I -do- see is concern about setting the SWR, which is another mythconception (and not just with CBers but with a lot of hams). A 1:1 SWR does -NOT- mean the antenna is operating at it's best efficiency. It -DOES- mean that the load is 50 ohms nonreactive. But a 50 ohm nonreactive load can be darn near anything: a carbon resistor, a dummy load, a bad coax working as a tuned stub, or even a corroded 9' whip with a mount caked in mud (seen both scenarios firsthand). As I stated before, an SWR meter is a go/no-go meter. If it normally reads 2:1 then suddenly jumps to 6:1, that's a good indication that something has gone wrong with the antenna or coax. And -THAT'S- what an SWR meter is good for..... a "something's wrong" meter (IMO, they should probably be replaced with idiot lights like those in a car.) If you want to tune your antenna for best efficiency you -NEED- to use a field strenght meter. Period. Now........ once again........ 1) Where did the original poster say he was being "forced" to use any type of matching device? 2) Where did the original poster say his SWR was 5:1? 3) Since very few CBers use a matchbox, why don't the millions of other CB radios have blown finals? ----== 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 =---- |
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#6
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Frank Gilliland wrote:
On Mon, 1 Aug 2005 14:46:55 -0700, "John Smith" wrote in : Frank: FOOL!!! His original post makes ALL of that clear, if not, one or two of his other posts after will fill you in... Well, let's find out just what he said, shall we? ===== On Sat, 30 Jul 2005 11:45:50 -0500, driver42 wrote in : Hi, If I'm not able to set the SWR in the trucks that I drive will it hurt the radio or just give me decreased range? ===== I don't see anything about a 5:1 SWR. I don't see anything about being "forced" to use a matching device. Now is a good time to dispell more CB mythology: Many of you already know that in order to double your range you need -four- times the power. But it also works the other way -- if you reduce your power to one fourth (i.e, you are losing 3/4 of your power, which would mean a pretty high SWR) you have -only- decreased your range by one half. So an SWR of 2:1 or 3:1 (or, conversely, squeezing a couple extra watts with a tweak-n-peak) isn't going to have a noticable effect on your range. Let's continue with the scenario that you are losing 3 watts (3/4 of your power) due purely to reflection. Ok, so that power gets dumped back into the final where it's dissipated as heat. That's three extra watts in a transistor conservatively rated to handle a certain amount of -continuous- heat dissipation, which is usually something along the lines of 4 watts. Mind you that 3 or 4 watts isn't a whole lot of power; if the heat sink can handle 4 watts without a problem then an extra 3 watts isn't exactly going to melt the knobs. Regardless, the final -isn't- dissipating this heat continuously (unless the OP is one of those asshole broadcast types that keys down for half an hour), so normal operation certainly isn't going to "cook" the transistor. And I already mentioned that these transistors are rated to handle 30:1 SWR -continuously- without damage. If you want proof of these FACTS then feel free to refer to the data sheets for the final transistors most commonly used in CB finals. ===== On Sat, 30 Jul 2005 13:27:48 -0500, driver42 wrote in : My problem is that I'll be moving from truck to truck so I wont have time to set the SWR correctly. Most of our trucks have factory installed double antenna's which I'm not too thrilled about. ===== I don't see anything about a 5:1 SWR. I don't see anything about being "forced" to use a matching device. Looks to me like he said the trucks already have antennas installed. Assuming they are CB antennas, it's more than likely that the antennas have already been trimmed for use with a 50-ohm radio (since all CB radios are 50-ohm radios). Unless something is broke, the antennas are probably going to give a reasonably good match to -whatever- radio he picks (because, once again, all CB radios are 50-ohm radios). ===== On Sat, 30 Jul 2005 21:33:43 -0500, driver42 wrote in : My problem is that I'll be in a different truck everyday and wont be able to set the SWR the way I want to. ===== I don't see anything about a 5:1 SWR. I don't see anything about being "forced" to use a matching device. What I -do- see is concern about setting the SWR, which is another mythconception (and not just with CBers but with a lot of hams). A 1:1 SWR does -NOT- mean the antenna is operating at it's best efficiency. It -DOES- mean that the load is 50 ohms nonreactive. But a 50 ohm nonreactive load can be darn near anything: a carbon resistor, a dummy load, a bad coax working as a tuned stub, or even a corroded 9' whip with a mount caked in mud (seen both scenarios firsthand). As I stated before, an SWR meter is a go/no-go meter. If it normally reads 2:1 then suddenly jumps to 6:1, that's a good indication that something has gone wrong with the antenna or coax. And -THAT'S- what an SWR meter is good for..... a "something's wrong" meter (IMO, they should probably be replaced with idiot lights like those in a car.) If you want to tune your antenna for best efficiency you -NEED- to use a field strenght meter. Period. Now........ once again........ 1) Where did the original poster say he was being "forced" to use any type of matching device? 2) Where did the original poster say his SWR was 5:1? 3) Since very few CBers use a matchbox, why don't the millions of other CB radios have blown finals? ----== 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 =---- I have to agree with you Frank. This 'John' comes on this board denigrating CBer's and is now a know all see all. You definitely aren't a people person yourself but at least you are honest in your beliefs. John, Frank did make some direct points which you waffle on. **** or get off the pot... |
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#7
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On Mon, 01 Aug 2005 22:04:01 -0400, jim wrote
in : snip I have to agree with you Frank. This 'John' comes on this board denigrating CBer's and is now a know all see all. He'll either leave, lurk, or start posting under another alias. It's too bad that some people have to be like that because I'm sure they could make positive contributions to the group. Even Dave had a lot of helpful advice; he just couldn't accept that sometimes he was wrong, which doesn't make a lot of sense to me since it's so easy to verify your facts -before- you post your opinions. But I'm sure he will be back..... when he's finished sulking. You definitely aren't a people person yourself but at least you are honest in your beliefs. I'll take that as a compliment. I really am a nice guy. I just have no patience or respect for liars and bull**** artists, on or off the net. ----== 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 =---- |
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#8
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Jim:
Read the fellows posts, he indicates he CANNOT adjust the antenna or coax, DUH!!!--the matchbox is an excellent solution.... Are you some brain dead wacko that can't read too? John "jim" wrote in message ... Frank Gilliland wrote: On Mon, 1 Aug 2005 14:46:55 -0700, "John Smith" wrote in : Frank: FOOL!!! His original post makes ALL of that clear, if not, one or two of his other posts after will fill you in... Well, let's find out just what he said, shall we? ===== On Sat, 30 Jul 2005 11:45:50 -0500, driver42 wrote in : Hi, If I'm not able to set the SWR in the trucks that I drive will it hurt the radio or just give me decreased range? ===== I don't see anything about a 5:1 SWR. I don't see anything about being "forced" to use a matching device. Now is a good time to dispell more CB mythology: Many of you already know that in order to double your range you need -four- times the power. But it also works the other way -- if you reduce your power to one fourth (i.e, you are losing 3/4 of your power, which would mean a pretty high SWR) you have -only- decreased your range by one half. So an SWR of 2:1 or 3:1 (or, conversely, squeezing a couple extra watts with a tweak-n-peak) isn't going to have a noticable effect on your range. Let's continue with the scenario that you are losing 3 watts (3/4 of your power) due purely to reflection. Ok, so that power gets dumped back into the final where it's dissipated as heat. That's three extra watts in a transistor conservatively rated to handle a certain amount of -continuous- heat dissipation, which is usually something along the lines of 4 watts. Mind you that 3 or 4 watts isn't a whole lot of power; if the heat sink can handle 4 watts without a problem then an extra 3 watts isn't exactly going to melt the knobs. Regardless, the final -isn't- dissipating this heat continuously (unless the OP is one of those asshole broadcast types that keys down for half an hour), so normal operation certainly isn't going to "cook" the transistor. And I already mentioned that these transistors are rated to handle 30:1 SWR -continuously- without damage. If you want proof of these FACTS then feel free to refer to the data sheets for the final transistors most commonly used in CB finals. ===== On Sat, 30 Jul 2005 13:27:48 -0500, driver42 wrote in : My problem is that I'll be moving from truck to truck so I wont have time to set the SWR correctly. Most of our trucks have factory installed double antenna's which I'm not too thrilled about. ===== I don't see anything about a 5:1 SWR. I don't see anything about being "forced" to use a matching device. Looks to me like he said the trucks already have antennas installed. Assuming they are CB antennas, it's more than likely that the antennas have already been trimmed for use with a 50-ohm radio (since all CB radios are 50-ohm radios). Unless something is broke, the antennas are probably going to give a reasonably good match to -whatever- radio he picks (because, once again, all CB radios are 50-ohm radios). ===== On Sat, 30 Jul 2005 21:33:43 -0500, driver42 wrote in : My problem is that I'll be in a different truck everyday and wont be able to set the SWR the way I want to. ===== I don't see anything about a 5:1 SWR. I don't see anything about being "forced" to use a matching device. What I -do- see is concern about setting the SWR, which is another mythconception (and not just with CBers but with a lot of hams). A 1:1 SWR does -NOT- mean the antenna is operating at it's best efficiency. It -DOES- mean that the load is 50 ohms nonreactive. But a 50 ohm nonreactive load can be darn near anything: a carbon resistor, a dummy load, a bad coax working as a tuned stub, or even a corroded 9' whip with a mount caked in mud (seen both scenarios firsthand). As I stated before, an SWR meter is a go/no-go meter. If it normally reads 2:1 then suddenly jumps to 6:1, that's a good indication that something has gone wrong with the antenna or coax. And -THAT'S- what an SWR meter is good for..... a "something's wrong" meter (IMO, they should probably be replaced with idiot lights like those in a car.) If you want to tune your antenna for best efficiency you -NEED- to use a field strenght meter. Period. Now........ once again........ 1) Where did the original poster say he was being "forced" to use any type of matching device? 2) Where did the original poster say his SWR was 5:1? 3) Since very few CBers use a matchbox, why don't the millions of other CB radios have blown finals? ----== 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 =---- I have to agree with you Frank. This 'John' comes on this board denigrating CBer's and is now a know all see all. You definitely aren't a people person yourself but at least you are honest in your beliefs. John, Frank did make some direct points which you waffle on. **** or get off the pot... |
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#9
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I have to agree with you Frank. This 'John' comes on this board
denigrating CBer's and is now a know all see all. "John Smith" made it to my ignore list. When I reach one of "his" posts, I change to sort by user and click all the dots next to that name. I then switch back to thread view. There are a few others that deserve this treatment as well. It cuts back the clutter in my newsreader! |
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