|
Picked up a small amp
Picked up a small amp 35 watt. It shows to be putting out the 35 watt
full but it still will not let me get out any further than about the, well really was getting out about 5 miles,... mobile RS TRC 447 with a single 36" Bulldog fiberglass mounted on driver's side of toolbox. Read on Wilson FAQ site that when mounting a single antenna it should be mounted on the passenger's side of the vehicle. Had never heard of that before. Was heavy into CB 71-88. Had an SBE Console II with a Siltronix 90-1 VFO with a homemade 2 element quad mounted on a homemade tower made up of two stick of oilfield line pipe. Line pipe cut in half, put a pivot point at the top and down low welded a strap to keep the antenna pole from flying all the way thru the mount and crashing into the ground. Talked a lot with a woman in Nova Scotia, British Columbia and Australia. Only bad thing there was this AH out at 29 Palms CA that had a really badly tuned radio. I transmitted like on 6-10 channels, up and down from a center freq. I could usually blank out anyone from coming in the backdoor but this sumbuck when he keyed up I know that the lights in Honolulu HA would grow dim. don't have any idea what kept him from burning his tower down. I would have been afraid to have gotten close to his coax when he keyed up. But he would come in my backdoor like the guy that was down the street. Friend down the street and I would when that sob got on line would get on line just to see if we could talk to each other and there was no way that we could talk to each other. I really don't relixh running a damned linear but when you can't even talk on the highway to other truckers because of the AH yo have to do something to be able to enjoy it. But with that quad I could talk to skip barefoot, although the SBE Console II was tweaked out and I don't remember where on the wattmeter it would swing to. Anyways, I was just wanting to complain some because of the amp. Paid the $1.25 per watt which was a good price but no workie goodie though. Any suggestions. Been thinking of getting one of the antennas that have the big round wire coil in the center of the antenna to mount on my pickup. Will this help out any? I understand, or at least have heard that running dual antennas, if they are not at least 8ft apart they really don't work that well. Ideas on that? Also I am looking for the CB shop that is in Bridgeport, Texas. Anyone got the name/address/phone number for this guy? Hey take care 73rd's Blue Dawg |
Cliff wrote: Picked up a small amp 35 watt. It shows to be putting out the 35 watt full but it still will not let me get out any further than about the, well really was getting out about 5 miles,... mobile RS TRC 447 with a single 36" Bulldog fiberglass mounted on driver's side of toolbox. Read on Wilson FAQ site that when mounting a single antenna it should be mounted on the passenger's side of the vehicle. Had never heard of that before. Was heavy into CB 71-88. Had an SBE Console II with a Siltronix 90-1 VFO with a homemade 2 element quad mounted on a homemade tower made up of two stick of oilfield line pipe. Line pipe cut in half, put a pivot point at the top and down low welded a strap to keep the antenna pole from flying all the way thru the mount and crashing into the ground. Talked a lot with a woman in Nova Scotia, British Columbia and Australia. Only bad thing there was this AH out at 29 Palms CA that had a really badly tuned radio. I transmitted like on 6-10 channels, up and down from a center freq. I could usually blank out anyone from coming in the backdoor but this sumbuck when he keyed up I know that the lights in Honolulu HA would grow dim. don't have any idea what kept him from burning his tower down. I would have been afraid to have gotten close to his coax when he keyed up. But he would come in my backdoor like the guy that was down the street. Friend down the street and I would when that sob got on line would get on line just to see if we could talk to each other and there was no way that we could talk to each other. I really don't relixh running a damned linear but when you can't even talk on the highway to other truckers because of the AH yo have to do something to be able to enjoy it. But with that quad I could talk to skip barefoot, although the SBE Console II was tweaked out and I don't remember where on the wattmeter it would swing to. Anyways, I was just wanting to complain some because of the amp. Paid the $1.25 per watt which was a good price but no workie goodie though. Any suggestions. Been thinking of getting one of the antennas that have the big round wire coil in the center of the antenna to mount on my pickup. Will this help out any? I understand, or at least have heard that running dual antennas, if they are not at least 8ft apart they really don't work that well. Ideas on that? Also I am looking for the CB shop that is in Bridgeport, Texas. Anyone got the name/address/phone number for this guy? Hey take care 73rd's Blue Dawg Amplifiers are 100% illegal on CB radios. You are not allowed to use them. |
.... the difference between 35 watts and 5 watts, at any
distance, is so small as to be un-noticeable... I would not worry about running that full time--up to about a 100 watts is nothing to worry about (even much larger power in mobiles)... I would begin to worry only if I was running high power though a base station... I only run 3.5 Kilowatts when the skip is in on my beam, can pretty much talk to anyone I can hear... but with that kind of power I realize there is a risk... must have been awfully lucky though since I have been running greater than 1Kw on skip ever since the early 1970's and have yet to even get a notice... I leave my little 300 watt base linear on all the time... but I don't tell anyone and I don't hook up a BIG LOUD MIKE which ****es everyone off, I DON'T ROGER BEEP and I DON'T CUSS and DON'T make an obnoxious A$$ of myself... it makes it sound like I am not running power and most just think I have a good setup and antenna... Warmest regards, John "mopathetic didn't camp at Dayton! CHICKEN BOY!" wrote in message oups.com... Cliff wrote: Picked up a small amp 35 watt. It shows to be putting out the 35 watt full but it still will not let me get out any further than about the, well really was getting out about 5 miles,... mobile RS TRC 447 with a single 36" Bulldog fiberglass mounted on driver's side of toolbox. Read on Wilson FAQ site that when mounting a single antenna it should be mounted on the passenger's side of the vehicle. Had never heard of that before. Was heavy into CB 71-88. Had an SBE Console II with a Siltronix 90-1 VFO with a homemade 2 element quad mounted on a homemade tower made up of two stick of oilfield line pipe. Line pipe cut in half, put a pivot point at the top and down low welded a strap to keep the antenna pole from flying all the way thru the mount and crashing into the ground. Talked a lot with a woman in Nova Scotia, British Columbia and Australia. Only bad thing there was this AH out at 29 Palms CA that had a really badly tuned radio. I transmitted like on 6-10 channels, up and down from a center freq. I could usually blank out anyone from coming in the backdoor but this sumbuck when he keyed up I know that the lights in Honolulu HA would grow dim. don't have any idea what kept him from burning his tower down. I would have been afraid to have gotten close to his coax when he keyed up. But he would come in my backdoor like the guy that was down the street. Friend down the street and I would when that sob got on line would get on line just to see if we could talk to each other and there was no way that we could talk to each other. I really don't relixh running a damned linear but when you can't even talk on the highway to other truckers because of the AH yo have to do something to be able to enjoy it. But with that quad I could talk to skip barefoot, although the SBE Console II was tweaked out and I don't remember where on the wattmeter it would swing to. Anyways, I was just wanting to complain some because of the amp. Paid the $1.25 per watt which was a good price but no workie goodie though. Any suggestions. Been thinking of getting one of the antennas that have the big round wire coil in the center of the antenna to mount on my pickup. Will this help out any? I understand, or at least have heard that running dual antennas, if they are not at least 8ft apart they really don't work that well. Ideas on that? Also I am looking for the CB shop that is in Bridgeport, Texas. Anyone got the name/address/phone number for this guy? Hey take care 73rd's Blue Dawg Amplifiers are 100% illegal on CB radios. You are not allowed to use them. |
John Smith wrote: ... the difference between 35 watts and 5 watts, at any distance, is so small as to be un-noticeable... I would not worry about running that full time--up to about a 100 watts is nothing to worry about (even much larger power in mobiles)... I would begin to worry only if I was running high power though a base station... I only run 3.5 Kilowatts when the skip is in on my beam, can pretty much talk to anyone I can hear... but with that kind of power I realize there is a risk... must have been awfully lucky though since I have been running greater than 1Kw on skip ever since the early 1970's and have yet to even get a notice... I leave my little 300 watt base linear on all the time... but I don't tell anyone and I don't hook up a BIG LOUD MIKE which ****es everyone off, I DON'T ROGER BEEP and I DON'T CUSS and DON'T make an obnoxious A$$ of myself... it makes it sound like I am not running power and most just think I have a good setup and antenna... Warmest regards, John "mopathetic didn't camp at Dayton! CHICKEN BOY!" wrote in message oups.com... Cliff wrote: Picked up a small amp 35 watt. It shows to be putting out the 35 watt full but it still will not let me get out any further than about the, well really was getting out about 5 miles,... mobile RS TRC 447 with a single 36" Bulldog fiberglass mounted on driver's side of toolbox. Read on Wilson FAQ site that when mounting a single antenna it should be mounted on the passenger's side of the vehicle. Had never heard of that before. Was heavy into CB 71-88. Had an SBE Console II with a Siltronix 90-1 VFO with a homemade 2 element quad mounted on a homemade tower made up of two stick of oilfield line pipe. Line pipe cut in half, put a pivot point at the top and down low welded a strap to keep the antenna pole from flying all the way thru the mount and crashing into the ground. Talked a lot with a woman in Nova Scotia, British Columbia and Australia. Only bad thing there was this AH out at 29 Palms CA that had a really badly tuned radio. I transmitted like on 6-10 channels, up and down from a center freq. I could usually blank out anyone from coming in the backdoor but this sumbuck when he keyed up I know that the lights in Honolulu HA would grow dim. don't have any idea what kept him from burning his tower down. I would have been afraid to have gotten close to his coax when he keyed up. But he would come in my backdoor like the guy that was down the street. Friend down the street and I would when that sob got on line would get on line just to see if we could talk to each other and there was no way that we could talk to each other. I really don't relixh running a damned linear but when you can't even talk on the highway to other truckers because of the AH yo have to do something to be able to enjoy it. But with that quad I could talk to skip barefoot, although the SBE Console II was tweaked out and I don't remember where on the wattmeter it would swing to. Anyways, I was just wanting to complain some because of the amp. Paid the $1.25 per watt which was a good price but no workie goodie though. Any suggestions. Been thinking of getting one of the antennas that have the big round wire coil in the center of the antenna to mount on my pickup. Will this help out any? I understand, or at least have heard that running dual antennas, if they are not at least 8ft apart they really don't work that well. Ideas on that? Also I am looking for the CB shop that is in Bridgeport, Texas. Anyone got the name/address/phone number for this guy? Hey take care 73rd's Blue Dawg Amplifiers are 100% illegal on CB radios. You are not allowed to use them. Leave it to a keyclown to tell another keyclown to be a keyclown. |
John Smith wrote: ... the difference between 35 watts and 5 watts, at any distance, is so small as to be un-noticeable... I would not worry about running that full time--up to about a 100 watts is nothing to worry about (even much larger power in mobiles)... I would begin to worry only if I was running high power though a base station... I only run 3.5 Kilowatts when the skip is in on my beam, can pretty much talk to anyone I can hear... but with that kind of power I realize there is a risk... must have been awfully lucky though since I have been running greater than 1Kw on skip ever since the early 1970's and have yet to even get a notice... I leave my little 300 watt base linear on all the time... but I don't tell anyone and I don't hook up a BIG LOUD MIKE which ****es everyone off, I DON'T ROGER BEEP and I DON'T CUSS and DON'T make an obnoxious A$$ of myself... it makes it sound like I am not running power and most just think I have a good setup and antenna... Warmest regards, John "mopathetic didn't camp at Dayton! CHICKEN BOY!" wrote in message oups.com... Cliff wrote: Picked up a small amp 35 watt. It shows to be putting out the 35 watt full but it still will not let me get out any further than about the, well really was getting out about 5 miles,... mobile RS TRC 447 with a single 36" Bulldog fiberglass mounted on driver's side of toolbox. Read on Wilson FAQ site that when mounting a single antenna it should be mounted on the passenger's side of the vehicle. Had never heard of that before. Was heavy into CB 71-88. Had an SBE Console II with a Siltronix 90-1 VFO with a homemade 2 element quad mounted on a homemade tower made up of two stick of oilfield line pipe. Line pipe cut in half, put a pivot point at the top and down low welded a strap to keep the antenna pole from flying all the way thru the mount and crashing into the ground. Talked a lot with a woman in Nova Scotia, British Columbia and Australia. Only bad thing there was this AH out at 29 Palms CA that had a really badly tuned radio. I transmitted like on 6-10 channels, up and down from a center freq. I could usually blank out anyone from coming in the backdoor but this sumbuck when he keyed up I know that the lights in Honolulu HA would grow dim. don't have any idea what kept him from burning his tower down. I would have been afraid to have gotten close to his coax when he keyed up. But he would come in my backdoor like the guy that was down the street. Friend down the street and I would when that sob got on line would get on line just to see if we could talk to each other and there was no way that we could talk to each other. I really don't relixh running a damned linear but when you can't even talk on the highway to other truckers because of the AH yo have to do something to be able to enjoy it. But with that quad I could talk to skip barefoot, although the SBE Console II was tweaked out and I don't remember where on the wattmeter it would swing to. Anyways, I was just wanting to complain some because of the amp. Paid the $1.25 per watt which was a good price but no workie goodie though. Any suggestions. Been thinking of getting one of the antennas that have the big round wire coil in the center of the antenna to mount on my pickup. Will this help out any? I understand, or at least have heard that running dual antennas, if they are not at least 8ft apart they really don't work that well. Ideas on that? Also I am looking for the CB shop that is in Bridgeport, Texas. Anyone got the name/address/phone number for this guy? Hey take care 73rd's Blue Dawg Amplifiers are 100% illegal on CB radios. You are not allowed to use them. Leave it to a keyclown to tell another keyclown to be a keyclown. |
John Smith wrote: ... the difference between 35 watts and 5 watts, at any distance, is so small as to be un-noticeable... I would not worry about running that full time--up to about a 100 watts is nothing to worry about (even much larger power in mobiles)... I would begin to worry only if I was running high power though a base station... I only run 3.5 Kilowatts when the skip is in on my beam, can pretty much talk to anyone I can hear... but with that kind of power I realize there is a risk... must have been awfully lucky though since I have been running greater than 1Kw on skip ever since the early 1970's and have yet to even get a notice... I leave my little 300 watt base linear on all the time... but I don't tell anyone and I don't hook up a BIG LOUD MIKE which ****es everyone off, I DON'T ROGER BEEP and I DON'T CUSS and DON'T make an obnoxious A$$ of myself... it makes it sound like I am not running power and most just think I have a good setup and antenna... Warmest regards, John "mopathetic didn't camp at Dayton! CHICKEN BOY!" wrote in message oups.com... Cliff wrote: Picked up a small amp 35 watt. It shows to be putting out the 35 watt full but it still will not let me get out any further than about the, well really was getting out about 5 miles,... mobile RS TRC 447 with a single 36" Bulldog fiberglass mounted on driver's side of toolbox. Read on Wilson FAQ site that when mounting a single antenna it should be mounted on the passenger's side of the vehicle. Had never heard of that before. Was heavy into CB 71-88. Had an SBE Console II with a Siltronix 90-1 VFO with a homemade 2 element quad mounted on a homemade tower made up of two stick of oilfield line pipe. Line pipe cut in half, put a pivot point at the top and down low welded a strap to keep the antenna pole from flying all the way thru the mount and crashing into the ground. Talked a lot with a woman in Nova Scotia, British Columbia and Australia. Only bad thing there was this AH out at 29 Palms CA that had a really badly tuned radio. I transmitted like on 6-10 channels, up and down from a center freq. I could usually blank out anyone from coming in the backdoor but this sumbuck when he keyed up I know that the lights in Honolulu HA would grow dim. don't have any idea what kept him from burning his tower down. I would have been afraid to have gotten close to his coax when he keyed up. But he would come in my backdoor like the guy that was down the street. Friend down the street and I would when that sob got on line would get on line just to see if we could talk to each other and there was no way that we could talk to each other. I really don't relixh running a damned linear but when you can't even talk on the highway to other truckers because of the AH yo have to do something to be able to enjoy it. But with that quad I could talk to skip barefoot, although the SBE Console II was tweaked out and I don't remember where on the wattmeter it would swing to. Anyways, I was just wanting to complain some because of the amp. Paid the $1.25 per watt which was a good price but no workie goodie though. Any suggestions. Been thinking of getting one of the antennas that have the big round wire coil in the center of the antenna to mount on my pickup. Will this help out any? I understand, or at least have heard that running dual antennas, if they are not at least 8ft apart they really don't work that well. Ideas on that? Also I am looking for the CB shop that is in Bridgeport, Texas. Anyone got the name/address/phone number for this guy? Hey take care 73rd's Blue Dawg Amplifiers are 100% illegal on CB radios. You are not allowed to use them. Leave it to a keyclown to tell another keyclown to be a keyclown. |
OM!!! That Alzheimer's is kinda gettin' bad, they got medication for
that yanno... you are up to 3 repeats a message... when it gets to 5 they send the guys in white coats over to your house... John "mopathetic didn't camp at Dayton! CHICKEN BOY!" wrote in message ups.com... John Smith wrote: ... the difference between 35 watts and 5 watts, at any distance, is so small as to be un-noticeable... I would not worry about running that full time--up to about a 100 watts is nothing to worry about (even much larger power in mobiles)... I would begin to worry only if I was running high power though a base station... I only run 3.5 Kilowatts when the skip is in on my beam, can pretty much talk to anyone I can hear... but with that kind of power I realize there is a risk... must have been awfully lucky though since I have been running greater than 1Kw on skip ever since the early 1970's and have yet to even get a notice... I leave my little 300 watt base linear on all the time... but I don't tell anyone and I don't hook up a BIG LOUD MIKE which ****es everyone off, I DON'T ROGER BEEP and I DON'T CUSS and DON'T make an obnoxious A$$ of myself... it makes it sound like I am not running power and most just think I have a good setup and antenna... Warmest regards, John "mopathetic didn't camp at Dayton! CHICKEN BOY!" wrote in message oups.com... Cliff wrote: Picked up a small amp 35 watt. It shows to be putting out the 35 watt full but it still will not let me get out any further than about the, well really was getting out about 5 miles,... mobile RS TRC 447 with a single 36" Bulldog fiberglass mounted on driver's side of toolbox. Read on Wilson FAQ site that when mounting a single antenna it should be mounted on the passenger's side of the vehicle. Had never heard of that before. Was heavy into CB 71-88. Had an SBE Console II with a Siltronix 90-1 VFO with a homemade 2 element quad mounted on a homemade tower made up of two stick of oilfield line pipe. Line pipe cut in half, put a pivot point at the top and down low welded a strap to keep the antenna pole from flying all the way thru the mount and crashing into the ground. Talked a lot with a woman in Nova Scotia, British Columbia and Australia. Only bad thing there was this AH out at 29 Palms CA that had a really badly tuned radio. I transmitted like on 6-10 channels, up and down from a center freq. I could usually blank out anyone from coming in the backdoor but this sumbuck when he keyed up I know that the lights in Honolulu HA would grow dim. don't have any idea what kept him from burning his tower down. I would have been afraid to have gotten close to his coax when he keyed up. But he would come in my backdoor like the guy that was down the street. Friend down the street and I would when that sob got on line would get on line just to see if we could talk to each other and there was no way that we could talk to each other. I really don't relixh running a damned linear but when you can't even talk on the highway to other truckers because of the AH yo have to do something to be able to enjoy it. But with that quad I could talk to skip barefoot, although the SBE Console II was tweaked out and I don't remember where on the wattmeter it would swing to. Anyways, I was just wanting to complain some because of the amp. Paid the $1.25 per watt which was a good price but no workie goodie though. Any suggestions. Been thinking of getting one of the antennas that have the big round wire coil in the center of the antenna to mount on my pickup. Will this help out any? I understand, or at least have heard that running dual antennas, if they are not at least 8ft apart they really don't work that well. Ideas on that? Also I am looking for the CB shop that is in Bridgeport, Texas. Anyone got the name/address/phone number for this guy? Hey take care 73rd's Blue Dawg Amplifiers are 100% illegal on CB radios. You are not allowed to use them. Leave it to a keyclown to tell another keyclown to be a keyclown. |
On Sat, 4 Jun 2005 15:00:56 -0700, "John Smith"
wrote: ... the difference between 35 watts and 5 watts, at any distance, is so small as to be un-noticeable... ****** Actually it is 8.45 dB difference. In an omnidirectional antenna it would be decernable difference. While it will not make a large difference it will be noticable. It would be more effective with directional antennae. james |
James:
Well, yes, but there is the meter readings and then there is actual/practical use--you will find 35 watts is hardly worth the effort unless put into a beam (directional antenna) of 7 db or greater gain... in a mobile or on a base running a omnidirectional antenna no one is going to be real amazed over your signal increase... In practical use here is a general case example of what I have seen in real use: 1) you are running an omniantenna 2) the guy at the other end is running an omniantenna 3) without an amp (4-5 watts) he has you at a 3 on his meter 4) you kick on a 100watt amp 5) now he has you at a 7 or right around that on his meter... .... so you see, 35 watts is not going to be that big of thing... now kick on a kilowatt and he is going to get excited!!! grin Warmest regards, John "james" wrote in message ... On Sat, 4 Jun 2005 15:00:56 -0700, "John Smith" wrote: ... the difference between 35 watts and 5 watts, at any distance, is so small as to be un-noticeable... ****** Actually it is 8.45 dB difference. In an omnidirectional antenna it would be decernable difference. While it will not make a large difference it will be noticable. It would be more effective with directional antennae. james |
I can't speak from too much AM experience, but I can share my
observations from HF SSB, and, legal issues aside, it is my opinion that 5 to 35 is worth the price of a few fast food meals. As JS suggested, there are far worse things going on than QRO on 11 meters. I usually operate at 20m or 40m at 10W, and when I can't get through to a station I'm reading at R4-R5, boosting up to 50W almost always does the trick. Going from 5 to 35 is a comparable dB gain, and I think it'd be worth it. My rig is capable of 100W, but I've only keyed up once at full power, and that was to verify that it actually worked. I'd suspect the antenna is a big part of the problem. Maybe it's not tuned or grounded properly? As far as I know, there isn't any reason to favor one side of the vehicle for antenna location. On the driver side, you've got drive-in windows to worry about. On the passenger side, you've got branches. For truckers, neither is really a big concern. If there is any difference in radiation, I would bet a single antenna on either side would have the same coverage ten miles down the road. If you want to run phased twins, the distance between them is important, as it affects the gain and radiation pattern, but there's no critical distance that will give you the best performance. The closer they are, the more like a single antenna they will behave. When you mess with the phase angle between the antennas for different patterns, the distance becomes more critical, but it's my understanding that truckers are concerned with what's on the road ahead and behind. |
I co-phased a set of copy-cat Monkey Made MM-9 on the pickup truck.
Sorta dwarfs the 1/2tnXtd cab full size Chev but they loook pretty decent on them. I can get out fairly good but the 35 watt added really makes a difference. I found a Red Devil 350 that I may put on it just to sit out in the truck at night when skip is running and try to shoot some of it. I don't know if the RD has a high low isde to it or not but if one cuts voltages down will that burn the amp up or will that just decrease the wattages of the kicker? |
On Sat, 4 Jun 2005 21:48:12 -0700, "John Smith"
wrote: James: Well, yes, but there is the meter readings and then there is actual/practical use--you will find 35 watts is hardly worth the effort unless put into a beam (directional antenna) of 7 db or greater gain... in a mobile or on a base running a omnidirectional antenna no one is going to be real amazed over your signal increase... In practical use here is a general case example of what I have seen in real use: 1) you are running an omniantenna 2) the guy at the other end is running an omniantenna 3) without an amp (4-5 watts) he has you at a 3 on his meter 4) you kick on a 100watt amp 5) now he has you at a 7 or right around that on his meter... ... so you see, 35 watts is not going to be that big of thing... now kick on a kilowatt and he is going to get excited!!! grin Warmest regards, John **** John There is meter readings and there is meter readings. One thing that meter readings can't get around is physics. Besides I place about as much trust in s meters on receivers as a sreeen door in a submarine. Nice gadget to make it look as if the receiver is doing something but for field density measurements they are worthless. Actually the difference from 35 watts to 100 watts is far less than that from 5 to 35 watts. In fact the difference from 35 watts to 100 watts is really just discernable. To make a real noticable difference the power level has to go up by four times. Five to 35 is seven times. Besides I never stated that 35 watts was going to knock doors off. I just stated that 35 watts compared to 5 watts is far more noticable than you give credit for. james |
On 6 Jun 2005 16:46:03 -0700, "Cliff" wrote:
I co-phased a set of copy-cat Monkey Made MM-9 on the pickup truck. Sorta dwarfs the 1/2tnXtd cab full size Chev but they loook pretty decent on them. I can get out fairly good but the 35 watt added really makes a difference. I found a Red Devil 350 that I may put on it just to sit out in the truck at night when skip is running and try to shoot some of it. I don't know if the RD has a high low isde to it or not but if one cuts voltages down will that burn the amp up or will that just decrease the wattages of the kicker? Do you have a link? Vinnie S. |
I never run less than 100 watts, just a nice round number... still with
all the truckers right around a 350 watt standard and 500 watt linears common, I get stepped on quickly... John "james" wrote in message ... On Sat, 4 Jun 2005 21:48:12 -0700, "John Smith" wrote: James: Well, yes, but there is the meter readings and then there is actual/practical use--you will find 35 watts is hardly worth the effort unless put into a beam (directional antenna) of 7 db or greater gain... in a mobile or on a base running a omnidirectional antenna no one is going to be real amazed over your signal increase... In practical use here is a general case example of what I have seen in real use: 1) you are running an omniantenna 2) the guy at the other end is running an omniantenna 3) without an amp (4-5 watts) he has you at a 3 on his meter 4) you kick on a 100watt amp 5) now he has you at a 7 or right around that on his meter... ... so you see, 35 watts is not going to be that big of thing... now kick on a kilowatt and he is going to get excited!!! grin Warmest regards, John **** John There is meter readings and there is meter readings. One thing that meter readings can't get around is physics. Besides I place about as much trust in s meters on receivers as a sreeen door in a submarine. Nice gadget to make it look as if the receiver is doing something but for field density measurements they are worthless. Actually the difference from 35 watts to 100 watts is far less than that from 5 to 35 watts. In fact the difference from 35 watts to 100 watts is really just discernable. To make a real noticable difference the power level has to go up by four times. Five to 35 is seven times. Besides I never stated that 35 watts was going to knock doors off. I just stated that 35 watts compared to 5 watts is far more noticable than you give credit for. james |
"Cliff" wrote in message oups.com... I co-phased a set of copy-cat Monkey Made MM-9 on the pickup truck. You must have one custom wide pickup truck to make it work, unless it is "co" phased from front to back. Need 9 ft to make it work, less than that it is not "co" Chad |
On Mon, 6 Jun 2005 18:09:01 -0700, "John Smith"
wrote: I never run less than 100 watts, just a nice round number... still with all the truckers right around a 350 watt standard and 500 watt linears common, I get stepped on quickly... John ***** That can be true. I never stated that with 35 watts that you will not get stepped on. I used to hear shrimp boats in the bay here a mile apart and land based stations upo to a kilowatt could not get between them. Power is not 100% a guarentee that you will always be heard. I used to talk to a freind of mine on a dummy load with 50 watts into it. Everyone thought he was ghost talking and was out of his mind. No one could get between us. It helped that his antenna was about 350 feet away. james |
On Tue, 7 Jun 2005 09:30:45 -0500, "Chad Wahls"
wrote: "Cliff" wrote in message roups.com... I co-phased a set of copy-cat Monkey Made MM-9 on the pickup truck. You must have one custom wide pickup truck to make it work, unless it is "co" phased from front to back. Need 9 ft to make it work, less than that it is not "co" Chad ******* You can phase two antennae with as little as 1/8 wave and be useable. It just gives one very strange radiation pattern though. james |
James:
I should have mentioned I live in California, two interstates run though my city--it sometimes seems every other vehicle is a truck... others in different areas will have a different experience... Warmest regards, John "james" wrote in message ... On Mon, 6 Jun 2005 18:09:01 -0700, "John Smith" wrote: I never run less than 100 watts, just a nice round number... still with all the truckers right around a 350 watt standard and 500 watt linears common, I get stepped on quickly... John ***** That can be true. I never stated that with 35 watts that you will not get stepped on. I used to hear shrimp boats in the bay here a mile apart and land based stations upo to a kilowatt could not get between them. Power is not 100% a guarentee that you will always be heard. I used to talk to a freind of mine on a dummy load with 50 watts into it. Everyone thought he was ghost talking and was out of his mind. No one could get between us. It helped that his antenna was about 350 feet away. james |
Actually the difference from 35 watts to 100 watts is far less than
that from 5 to 35 watts. In fact the difference from 35 watts to 100 watts is really just discernable. To make a real noticable difference the power level has to go up by four times. Five to 35 is seven times. A 2x455 amp will work great. They are called 225's now, because that's how watts of DC input they use. It's a marketing ploy. Each MRF455 is good for 60 watts max times a push/pull pair is 120 watts max RMS. Expect OK audio on AM at 30 to 35 watts of dead key with a properly biased box. Stay away from Class C (competition box or modulator) units. |
Wrong. 9 ft in coax is electrically longer than 9 feet in air. You have
to consider velocity of propogation in a given type cable before deciding the proper physical length. |
It just amazes me how amp users push the limits out of a amp. If the outputs
can do 200 watts at RF out compression, they will drive it to do 200 watts dead key and modulate it with AM the P-P watt out is 200 watts with downward modulation.. They don't seem to realize that if they drove it to 35-50 watts out and then apply modulation their signal would be just as strong, hitting 200 watts P-P Out and the current draw would be less, also much less heat and sound better. Oh **** I said sound better, that is not the way in CB, the more they can F * up a radio, cutting limiters, adding a mic that overdrives the radio into distortion, and using class C amps the more they like it. "Scott in Baltimore" wrote in message ... Actually the difference from 35 watts to 100 watts is far less than that from 5 to 35 watts. In fact the difference from 35 watts to 100 watts is really just discernable. To make a real noticable difference the power level has to go up by four times. Five to 35 is seven times. A 2x455 amp will work great. They are called 225's now, because that's how watts of DC input they use. It's a marketing ploy. Each MRF455 is good for 60 watts max times a push/pull pair is 120 watts max RMS. Expect OK audio on AM at 30 to 35 watts of dead key with a properly biased box. Stay away from Class C (competition box or modulator) units. |
There is no reason for a 100 Watt linear to NOT DO 100 watts dead key am
with 100% modulation... same goes with all other amps or greater/lesser ratings... On SSB carrier will be controlled by modulation, naturally... However, "swing kits" and cheap amps which count on "swing" are nothing but junk... a junk amp cannot pump our 100 Watts continuous (however, even in amateur operation amps are usually rated at 50% duty cycle--basically means 1 min key down, one minute off--on the avg--or 50% on time during conversations) "Backwards modulation" can be caused by over 100% modulation which causes signal to be "stolen" from rf amplification and given to more audio, or a linear NOT peaked correctly... There are a LOT of junk amps out there and those purchasing/using them just are not aware of what a real amp is... And of course, if you buy a 500 watt amp and cut down drive from the transmitter so that the linear is only putting out 250 watts it will run much cooler--possibly even able to run a 100% duty cycle... and a "swing kit" that is bouncing the signal up and down with am audio is just a junk toy... I guess the "good ole buddies" just like to see a meter swing on am... hey, whatever keeps a child entertained... Warmest regards, John "Crapper" wrote in message ... It just amazes me how amp users push the limits out of a amp. If the outputs can do 200 watts at RF out compression, they will drive it to do 200 watts dead key and modulate it with AM the P-P watt out is 200 watts with downward modulation.. They don't seem to realize that if they drove it to 35-50 watts out and then apply modulation their signal would be just as strong, hitting 200 watts P-P Out and the current draw would be less, also much less heat and sound better. Oh **** I said sound better, that is not the way in CB, the more they can F * up a radio, cutting limiters, adding a mic that overdrives the radio into distortion, and using class C amps the more they like it. "Scott in Baltimore" wrote in message ... Actually the difference from 35 watts to 100 watts is far less than that from 5 to 35 watts. In fact the difference from 35 watts to 100 watts is really just discernable. To make a real noticable difference the power level has to go up by four times. Five to 35 is seven times. A 2x455 amp will work great. They are called 225's now, because that's how watts of DC input they use. It's a marketing ploy. Each MRF455 is good for 60 watts max times a push/pull pair is 120 watts max RMS. Expect OK audio on AM at 30 to 35 watts of dead key with a properly biased box. Stay away from Class C (competition box or modulator) units. |
There is no reason for a 100 Watt linear to NOT DO 100 watts dead key am
with 100% modulation... same goes with all other amps or greater/lesser ratings... Explain to me how you can do 100 watts deadkey out of a 100 watt amp and get 400 watt peak-to-peak swing out of it? AM has a 4:1 ratio of carrier to modulation. That means that for 100% modulation, the peak instantaneous power is 4 times the unmodulated power. Since amps are rated in peak power (usually DC input power), you need to put your deadkey at 25% of the maximum for the same reason that amateur radios that claim 100 watts of SSB power only do 25 watts of AM. May I suggest the ARRL handbook at your local library as a primer? |
"Scott in Baltimore" wrote in message ... There is no reason for a 100 Watt linear to NOT DO 100 watts dead key am with 100% modulation... same goes with all other amps or greater/lesser ratings... Explain to me how you can do 100 watts deadkey out of a 100 watt amp and get 400 watt peak-to-peak swing out of it? AM has a 4:1 ratio of carrier to modulation. That means that for 100% modulation, the peak instantaneous power is 4 times the unmodulated power. Since amps are rated in peak power (usually DC input power), you need to put your deadkey at 25% of the maximum for the same reason that amateur radios that claim 100 watts of SSB power only do 25 watts of AM. May I suggest the ARRL handbook at your local library as a primer? The channel 6 method? 30 volts? |
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"I AmnotGeorgeBush" wrote in message ... From: "Jim Hampton" Group: rec.radio.cb Subject: Picked up a small amp X-Priority: 3 X-MSMail-Priority: Normal X-Complaints-To: X-Trace: 52616e646f6d495606fc1a66ad665b5cb50fbd0705b6e47103 26c788f81f8ede38f8a5f7bead8d9b46fe9d2f1e66531196db 2b26143b03f2214fd6d9c561420d3de982c4750cf5ddfb4f6a d5ac2370c627ea23e3aee461f8f211368a26b0f127 X-Abuse-Info: Please be sure to forward ALL headers so that we may process your complaint properly. NNTP-Posting-Date: Tue, Jun 21, 2005, 10:12pm (EDT+4) Date: Tue, Jun 21, 2005, 10:12pm (EDT+4) "I AmnotGeorgeBush" wrote in message ... From: (Scott in Baltimore) There is no reason for a 100 Watt linear to NOT DO 100 watts dead key am with 100% modulation... same goes with all other amps or greater/lesser ratings. Explain to me how you can do 100 watts deadkey out of a 100 watt amp and get 400 watt peak-to-peak swing out of it? Huh? He said 100 watts, not 400 and he didn't mention swing at all. - said: Jay is right about the power end of it. If an amp is not rated anything other than "100 watts", it would be smart to assume it is 100 watts output *maximum*. Exactly. That means 100 watts on FM or CW or any digital mode, but ssb would be 100 watts pep as would AM. In the case of AM, that means a 25 watt carrier (to end up with 100 watts pep). 73 from Rochester, NY Jim On AM, how many bird watts will the bird watts swing from 100 bird watts dead key carrier? g ............yeah, what he said. |
Jim:
I have never seen an amp rated both 100 watts am and 100 watts ssb. By nature a ssb signal is only half the bandwidth (roughly) of an am signal. I have an old CMI linear I have ran since 1975--100 watts am but 165 watts ssb p-p. I have found most amps to fall relatively close to ratings, if a 100 watt amp. I have looked at the new amps and they components are truly pushed to the max. I would think they must run HOT!!! On an am signal, the power out should remain relatively the same with and without audio. "Swing kits" cause the rf out to vary--but why, unless you are driving components above their ratings and need to avg the power out. A true 100 watt amp should hold a fairly steady 100 watt output on AM from key down to key up. Some freaks out there just like to see a meter "swing" like ssb causes--so they either go a swing kit or a variable power xmitter which allow rf increases on peak audio--in some ways it reminds me of a childs toy. John "Jim Hampton" wrote in message ... "I AmnotGeorgeBush" wrote in message ... From: (Scott in Baltimore) There is no reason for a 100 Watt linear to NOT DO 100 watts dead key am with 100% modulation... same goes with all other amps or greater/lesser ratings. . Explain to me how you can do 100 watts deadkey out of a 100 watt amp and get 400 watt peak-to-peak swing out of it? Huh? He said 100 watts, not 400 and he didn't mention swing at all. Jay is right about the power end of it. If an amp is not rated anything other than "100 watts", it would be smart to assume it is 100 watts output *maximum*. That means 100 watts on FM or CW or any digital mode, but ssb would be 100 watts pep as would AM. In the case of AM, that means a 25 watt carrier (to end up with 100 watts pep). 73 from Rochester, NY Jim |
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