Club House > Club Talk
Glider A & B Crets.
Happy Days:
--- Quote from: EI1638 on February 08, 2017, 07:59:09 AM ---Thanks John. Now I know.
Effective radiated power (ERP), synonymous with equivalent radiated power, is an IEEE standardized definition of directional radio frequency (RF) power transmitted from a theoretical half-wave dipole antenna. It is differentiated from effective (or equivalent) isotropic radiated power (EIRP) mainly by use of relative antenna gain instead of absolute gain in the calculation. In the case of ERP, antenna gain is calculated as compared to the maximum directivity of a half-wave dipole antenna, whereas EIRP is calculated using antenna gain referenced to an ideal isotropic radiator, otherwise known as "absolute" gain. The term "antenna gain" is assumed to be absolute (referenced to isotropic) unless specifically stated to be relative. The gain is then multiplied by the power actually accepted by the antenna to result in the actual ERP value (or EIRP). Power losses which occur prior to the antenna, e.g., in the transmission line or from inefficiency in the generator itself are therefore not included in the calculation of ERP or EIRP.
courtesy of wikipedia...
--- End quote ---
Happy Days:
Chris,
I feel we should stop any further forum exchanges on matters of R.F. and allow this thread to return to it's original topic of A & B Certs. Consequently this will be my final post on the subject.
If you have any genuine questions you'd like to ask me in respect of Radio Frequency please feel free to contact me by Personal Message.
Keith
Fred:
Keith, do you want me to keep your RF conversation in another thread? And you can continue there instead of privately?
I read the posts, and find them very interesting :) Would be a shame to "lose" all these informations :)
Happy Days:
Hi Fred
I think there are two points. One is the fact that RF is certainly outside the remit of this thread.
Secondly, I'm getting the distinct feeling that Chris and I may have some 'crossed wires' that have very little to do with radio waves and are of a somewhat more personal nature.
In my experience, if these wires are ever to become 'uncrossed' it's more likely to happen out of the public gaze. ;)
But thanks for your offer Fred
Keith
EI1638:
I've stepped back from this one Fred.
I'm easy either way with how you want to handle it.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version