Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]()
Richard Harrison wrote:
There surely must be instances where vertical polarization proves better than horizontal, but these are exceptions, not the rule. Vertically polarized noise is about 10 dB higher than horizontally polarized noise at my QTH rendering a vertical antenna virtually useless for receiving compared to a horizontal antenna. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#2
![]() |
|||
|
|||
![]()
Cecil Moore wrote:
Richard Harrison wrote: There surely must be instances where vertical polarization proves better than horizontal, but these are exceptions, not the rule. Vertically polarized noise is about 10 dB higher than horizontally polarized noise at my QTH rendering a vertical antenna virtually useless for receiving compared to a horizontal antenna. Sorry, forgot to say this was on 40m. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#3
![]() |
|||
|
|||
![]()
Here's my experience.
On transmit: 160 meters: 90 foot vertical is 20 dB better than 60 ft high inv vee 80 meters: 60 foot vertical is 10 dB better than 60 ft high inv vee 40 meters: 30 foot vertical is equal to 90 ft high inv vee 20 meters: 30 foot vertical is beaten by 90 ft high inv vee about 25% of the time 15 meters and up: Any dipole trounces any vertical. On receive: 160 and 80 meters: A low dipole trounces any vertical 40 meters and up: best receive antenna is best transmit antenna Rick N6RK There surely must be instances where vertical polarization proves better than horizontal, but these are exceptions, not the rule. Vertically polarized noise is about 10 dB higher than horizontally polarized noise at my QTH rendering a vertical antenna virtually useless for receiving compared to a horizontal antenna. Sorry, forgot to say this was on 40m. -- 73, Cecil http://www.qsl.net/w5dxp - 19 Different Servers! =----- |
#4
![]() |
|||
|
|||
![]()
What distances are you talking about? DX, local, etc...
"Rick Karlquist N6RK" wrote in message news:bBDJb.48697$I07.144572@attbi_s53... Here's my experience. On transmit: 160 meters: 90 foot vertical is 20 dB better than 60 ft high inv vee 80 meters: 60 foot vertical is 10 dB better than 60 ft high inv vee 40 meters: 30 foot vertical is equal to 90 ft high inv vee 20 meters: 30 foot vertical is beaten by 90 ft high inv vee about 25% of the time 15 meters and up: Any dipole trounces any vertical. On receive: 160 and 80 meters: A low dipole trounces any vertical 40 meters and up: best receive antenna is best transmit antenna Rick N6RK There surely must be instances where vertical polarization proves better than horizontal, but these are exceptions, not the rule. Vertically polarized noise is about 10 dB higher than horizontally polarized noise at my QTH rendering a vertical antenna virtually useless for receiving compared to a horizontal antenna. Sorry, forgot to say this was on 40m. -- 73, Cecil http://www.qsl.net/w5dxp - 19 Different Servers! =----- |
#5
![]() |
|||
|
|||
![]()
What distances are you talking about? DX, local, etc...
"Rick Karlquist N6RK" wrote in message news:bBDJb.48697$I07.144572@attbi_s53... Here's my experience. On transmit: 160 meters: 90 foot vertical is 20 dB better than 60 ft high inv vee 80 meters: 60 foot vertical is 10 dB better than 60 ft high inv vee 40 meters: 30 foot vertical is equal to 90 ft high inv vee 20 meters: 30 foot vertical is beaten by 90 ft high inv vee about 25% of the time 15 meters and up: Any dipole trounces any vertical. On receive: 160 and 80 meters: A low dipole trounces any vertical 40 meters and up: best receive antenna is best transmit antenna Rick N6RK There surely must be instances where vertical polarization proves better than horizontal, but these are exceptions, not the rule. Vertically polarized noise is about 10 dB higher than horizontally polarized noise at my QTH rendering a vertical antenna virtually useless for receiving compared to a horizontal antenna. Sorry, forgot to say this was on 40m. -- 73, Cecil http://www.qsl.net/w5dxp - 19 Different Servers! =----- |
#6
![]() |
|||
|
|||
![]()
"Rick Karlquist N6RK" wrote in message news:bBDJb.48697$I07.144572@attbi_s53...
Here's my experience. On transmit: 160 meters: 90 foot vertical is 20 dB better than 60 ft high inv vee 80 meters: 60 foot vertical is 10 dB better than 60 ft high inv vee 40 meters: 30 foot vertical is equal to 90 ft high inv vee Sounds about right, but try the 90 ft dipole against a 1/4 wave ground plane mounted say at 55-60 ft. ![]() about the same.. I bet the vertical trounces the dipole. 20 meters: 30 foot vertical is beaten by 90 ft high inv vee about 25% of the time I usually prefer the dipole on this band... 15 meters and up: Any dipole trounces any vertical. Have to disagree here though. I've had numerous 10m verticals that beat any dipole I tried on most low angles...Same for 17m, when I used an elevated 5/8 ground plane at 36 ft. Dogged all my other antennas. On receive: 160 and 80 meters: A low dipole trounces any vertical Not sure on this one...I assume you see this due to a better s/n ratio with the dipole...Overall, I don't totally agree with this one though...I think it's reciprical. Which ever transmits best, usually receives best in what I see here. I often receive using the vertical. But I don't have any fancy receive antennas like beverages, or small phased verticals, etc.. 40 meters and up: best receive antenna is best transmit antenna I agree..Actually, I think this is really the case on any band, not counting any s/n problems with a certain antenna on receive. I'm a firm believer in reciprical operation. Only in a very few cases will that not pan out. No matter what band I'm on, I usually transmit on the antenna that receives the best. Very, very rarely is it not also the best transmit antenna. MK |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Inverted ground plane antenna: compared with normal GP and low dipole. | Antenna | |||
Measuring radiation resistance | Antenna | |||
RF radiation detector | Antenna | |||
QST Article: An Easy to Build, Dual-Band Collinear Antenna | Antenna |