Home |
Search |
Today's Posts |
#51
![]() |
|||
|
|||
![]()
driver42:
I would replace the term you are using "set the swr", with "adjust the antenna for low or lowest swr." For example, you question might be stated as, "I will not be able to adjust the antenna for a match and low SWR--and will have to use it as it is, so will a match box allow me to still operate my radio into the antenna, no matter if the swr is low, or not?" You can ask this same question in rec.radio.amateur.antenna, however, they refer to a "match box" as an "L-Match", same thing in most cases, however there are different types of "match boxes", some balanced, some unbalanced, since you are using coax, you will be using an unbalanced one (ALL cb "match boxes" will be "unbalanced") So, if in rec.radio.amateur.antenna you ask, "Can I use a "L-Match" to lower the SWR into an antenna which I cannot physically adjust, but is cut for the right frequency?" You will begin another debate there. grin But, if you think you are confused here, you will even be more confused there. They will start laying technical terms on you faster than a pervert can come up with lollipops for the kids! And, the hair splitting over semantics, syntax and terms will spin your head! However, after you chat with the shop techs, please, report back on your findings for others who might post the same question... thanks in advance... Warmest regards, John "driver42" wrote in message 5... Geez fellas... I didnt mean to start a war here. I'm just a truck driver that wants to do things as right as I can given my situation with pretty much having a different truck everyday. After reading through this entire thread I think I'm even more confused :-) so here's what I'm gonna do. I will call a few of these cb shops that I've seen on the web and ask them for their advise and explain to them my circumstances of wanting a good high quality radio "no amp or stupid toys that make noise" and telling them that I'll be in a different truck and wont be able to set the SWR and ask them what would be a good setup for me. One last question for you all that have been helpful. Can you give me a few sites to good internet dealers since there arent any physical shops left in my area anymore? Thanks again for your help guys. |
#52
![]() |
|||
|
|||
![]()
professor:
Funny, that pic won't show in my browser... John "Professor" wrote in message oups.com... LOL... no problem... Frank is a little edgy... as usual. You should pick up something like this http://batterysupply.com/cbantacc1.htm This is what we've been talking about... a so called "matchbox"... Professor www.telstar-electronics.com |
#53
![]() |
|||
|
|||
![]()
On Sun, 31 Jul 2005 18:54:41 -0500, driver42 wrote
in : Geez fellas... I didnt mean to start a war here. I'm just a truck driver that wants to do things as right as I can given my situation with pretty much having a different truck everyday. After reading through this entire thread I think I'm even more confused :-) First rule: Avoid any gimmicks or modifications that claim to give you some profound increase in performance. It doesn't work that way. The laws of physics dictate that there are only two ways to significantly improve your performance: use a bigger antenna and/or use more power. Leave the gadgets and gizmos for the neurotics that want to squeeze every last milliwatt from their radios (and the morons who like to watch meter needles bounce). Second rule: Practically all CB radios are the same in that they have an output impedance of 50 ohms. This means that the antennas which are installed on these trucks are most likely -already- adjusted for best SWR to a 50-ohm radio, and will therefore work just fine with -any- CB radio you choose to buy, matchbox or not. Third rule: Don't pray to the SWR god. A dummy load will give you an SWR of 1:1 but it doesn't make a very good antenna. Your antenna is best tuned with a field strength meter, and many times the best field strength does -not- coincide with best SWR. If the radio you choose has an SWR meter included, great. Think of it as a go/no-go meter: below 3:1 and everything is fine; above 3:1 and you need to check for a major malfunction like a disconnected cable, corroded connectors, busted antenna, etc. so here's what I'm gonna do. I will call a few of these cb shops that I've seen on the web and ask them for their advise and explain to them my circumstances of wanting a good high quality radio "no amp or stupid toys that make noise" and telling them that I'll be in a different truck and wont be able to set the SWR and ask them what would be a good setup for me. One last question for you all that have been helpful. Can you give me a few sites to good internet dealers since there arent any physical shops left in my area anymore? Thanks again for your help guys. Forget the internet CB shops -- let your fingers do the walking and contact one of your local commercial radio communication shops. They do this stuff professionally, they will verify everything I have said, and will give you the -straight- scoop instead of a bunch of CB hocus-pocus designed to sell crap to nieve CBers like Brian does. ----== 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 =---- |
#54
![]() |
|||
|
|||
![]()
On Sun, 31 Jul 2005 16:23:02 -0700, "John Smith"
wrote in : Frank: Frankly (pun intended) you strike me as an idiot. Probably one who has picked up most if not all of his "knowledge" from magazines, and books on his own--no formal training, no degree, not having held a job in the field--you come hear like an authority. Krist, the hams know more than you do! Hams are, by definition, amateurs. Radio has been my -profession- for about 25 years, including a BS in EE from EWU (including a minor in communications). I worked as a BE for about 12 years, before that at a radio comm shop (while going to college), and before that as a radio tech in the USMC (MOS 2841). Nowdays I have my own part-time shop for both radio and audio equipment, and do some bartending on the side (better perks than any radio work!). Oh yeah..... and I've been a CBer since I was about 10. And if you have -any- doubts about what I am saying here then feel free to browse the archives for this group and challenge me on any technical issue on which I have commented and you think I'm wrong. Otherwise, go troll some other newsgroup. Maybe some group under the topic of assembly language since you claim to be a "wizard" at it. Or we can discuss that topic here -- I'm fairly adept at writing my own assembly subroutines, especially device drivers for automation control and data aquisition (for custom interface cards that I also designed myself). So what'll it be, "John"? ----== 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 =---- |
#55
![]() |
|||
|
|||
![]()
On Sun, 31 Jul 2005 15:48:55 -0700, "John Smith"
wrote in : Frank: My words are simply direct and offend you... Gee, more crystal ball gazing. Like -that- wasn't expected. However, they are absolute truth... Truth is relative; facts are absolute. You have ignored the fact that most CBers -don't- use a matchbox and their radios don't blow up. Address the facts, not opinions that you claim to be the "truth". too bad you can't understand without someone having to strike you across the top of the head with a 2X4! Finally, an ad baculum. Trolls like you usually threaten me after the first two or three replies. So what took you so long? ----== 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 =---- |
#56
![]() |
|||
|
|||
![]()
Frank:
From your text, I still believe myself correct... else you are very adept at being able to hide an education... John "Frank Gilliland" wrote in message ... On Sun, 31 Jul 2005 16:23:02 -0700, "John Smith" wrote in : Frank: Frankly (pun intended) you strike me as an idiot. Probably one who has picked up most if not all of his "knowledge" from magazines, and books on his own--no formal training, no degree, not having held a job in the field--you come hear like an authority. Krist, the hams know more than you do! Hams are, by definition, amateurs. Radio has been my -profession- for about 25 years, including a BS in EE from EWU (including a minor in communications). I worked as a BE for about 12 years, before that at a radio comm shop (while going to college), and before that as a radio tech in the USMC (MOS 2841). Nowdays I have my own part-time shop for both radio and audio equipment, and do some bartending on the side (better perks than any radio work!). Oh yeah..... and I've been a CBer since I was about 10. And if you have -any- doubts about what I am saying here then feel free to browse the archives for this group and challenge me on any technical issue on which I have commented and you think I'm wrong. Otherwise, go troll some other newsgroup. Maybe some group under the topic of assembly language since you claim to be a "wizard" at it. Or we can discuss that topic here -- I'm fairly adept at writing my own assembly subroutines, especially device drivers for automation control and data aquisition (for custom interface cards that I also designed myself). So what'll it be, "John"? ----== 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 =---- |
#57
![]() |
|||
|
|||
![]()
Frank:
U R an idiot... U can't tell the difference between forced to use an "L-Match" to be able to use a radio and thinking it is a "magic device." Troll? I was hoping you were just a troll instead of a ma'roon! At least a troll can be communicated with... John "Frank Gilliland" wrote in message ... On Sun, 31 Jul 2005 18:54:41 -0500, driver42 wrote in : Geez fellas... I didnt mean to start a war here. I'm just a truck driver that wants to do things as right as I can given my situation with pretty much having a different truck everyday. After reading through this entire thread I think I'm even more confused :-) First rule: Avoid any gimmicks or modifications that claim to give you some profound increase in performance. It doesn't work that way. The laws of physics dictate that there are only two ways to significantly improve your performance: use a bigger antenna and/or use more power. Leave the gadgets and gizmos for the neurotics that want to squeeze every last milliwatt from their radios (and the morons who like to watch meter needles bounce). Second rule: Practically all CB radios are the same in that they have an output impedance of 50 ohms. This means that the antennas which are installed on these trucks are most likely -already- adjusted for best SWR to a 50-ohm radio, and will therefore work just fine with -any- CB radio you choose to buy, matchbox or not. Third rule: Don't pray to the SWR god. A dummy load will give you an SWR of 1:1 but it doesn't make a very good antenna. Your antenna is best tuned with a field strength meter, and many times the best field strength does -not- coincide with best SWR. If the radio you choose has an SWR meter included, great. Think of it as a go/no-go meter: below 3:1 and everything is fine; above 3:1 and you need to check for a major malfunction like a disconnected cable, corroded connectors, busted antenna, etc. so here's what I'm gonna do. I will call a few of these cb shops that I've seen on the web and ask them for their advise and explain to them my circumstances of wanting a good high quality radio "no amp or stupid toys that make noise" and telling them that I'll be in a different truck and wont be able to set the SWR and ask them what would be a good setup for me. One last question for you all that have been helpful. Can you give me a few sites to good internet dealers since there arent any physical shops left in my area anymore? Thanks again for your help guys. Forget the internet CB shops -- let your fingers do the walking and contact one of your local commercial radio communication shops. They do this stuff professionally, they will verify everything I have said, and will give you the -straight- scoop instead of a bunch of CB hocus-pocus designed to sell crap to nieve CBers like Brian does. ----== 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 =---- |
#58
![]() |
|||
|
|||
![]()
On Mon, 1 Aug 2005 07:55:47 -0700, "John Smith"
wrote in : Frank: U R an idiot... U can't tell the difference between forced to use an "L-Match" to be able to use a radio and thinking it is a "magic device." Focus, "John"..... where, in any of his posts, did he say he was being "forced" to use any type of matching device? He didn't. Troll? I was hoping you were just a troll instead of a ma'roon! At least a troll can be communicated with... So you wrote the book on trolls? ----== 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 =---- |
#59
![]() |
|||
|
|||
![]() Hams are, by definition, amateurs. Radio has been my -profession- for about 25 years, including a BS in EE from EWU (including a minor in communications). I worked as a BE for about 12 years, before that at a radio comm shop (while going to college), and before that as a radio tech in the USMC (MOS 2841). Nowdays I have my own part-time shop for both radio and audio equipment, and do some bartending on the side (better perks than any radio work!). Oh yeah..... and I've been a CBer since I was about 10. You left out the whole truth. In addition to your one sided horn blowing of above...................... 1. At age 10 you decided that you were tired of being beat. You learned to trick other kids into believing that you had a value other than that of a punching bag. You accomplished this by starting to go down a path of deceit that you continue to go down today. 2. At age 33 you decided you'd give up on girls. You continue to be a virgin to this day. ( not counting farm animals) 3. At the advent of the Internet you discovered that you could puff up your low self esteem through a series of put down others to inflate yourself posts. You quickly learned that the truth is not this issue. All that matters is to make yourself look good. Just spew a bunch of non related technical matter into a post and no one will be the wiser. There are more. These are just the obvious ones. If others would like, they can continue the list. It shouldn't be to difficult. 4............ 5.......... ect. |
#60
![]() |
|||
|
|||
![]()
On Mon, 1 Aug 2005 07:52:40 -0700, "John Smith"
wrote in : Frank: From your text, I still believe myself correct... There are facts and then there are your beliefs. Learn to distinguish between the two. else you are very adept at being able to hide an education... Like I said before -- feel free to browse through the archives. Do you need me to post the URL? ----== 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 =---- |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|