Dear All,
I will appreciate your opinions concerning the following:
1. R&TTE Radio standards include for products having an integral
antenna, a radiated power/ spurious test (EIRP), based on the substitution
antenna method.
2. The final test result is:
signal generator level + overall correction factors
The overall correction factor consists mainly of the coaxial
cable loss and substitution antenna gain.
3. According to ETSI TR 100027, (page 89), the overall correction
factor consists of various losses with a plus (+) sign and gain of
substitution antenna with a minus (-) sign.
4. According to my understanding, the EIRP test result is the signal
generator power delivered to an isotropic antenna port.
Therefore the signs should be reversed:
e.g.:
a. The coaxial cable loss redices the level
delivered to the substitution antenna port (minus (-) sign).
b. With a substitution antenna having gain
(Horn Antenna), less signal generator power (plus (+) sign) will be
required.
5. Any comments.
Regards
Shaike Raz
EMC Laboratory Manager
EMC Laboratory
ITL (Product Testing) Ltd.
Kfar Bin Nun
Israel
Tel: +972-8-9797799
Fax: +972-8-9797702
Email: [email protected]
http://www.itl.co.il
http://www.i-spec.com
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