Antenna factors are a function of gain. You can back out the gain from the receive antenna factor, and then plug in that effective gain into the transmit antenna factor expression. However, the effective gain at one meter is different than that at three or ten meters, so you cannot accurately derive the three and ten meters TAFS from the one meter AF, any more than you could derive the three and ten meter AFs from the one meter AF. Ken Javor
Phone: (256) 650-5261 ________________________________ From: Rodrigo Rodriguez <[email protected]> List-Post: [email protected] List-Post: [email protected] List-Post: [email protected] Date: Wed, 12 May 2010 12:36:22 -0400 To: <[email protected]> Subject: Antenna TAF calculated from AF Hello all, I would appreciate your comments/guidance about this question. I have a calibrated biconical antenna and its calibration report includes its AF (antenna factor) and the Gain at 1 meter. I would like to get the corresponding TAF (Transmit Antenna Factor) for this antenna at 1 m, 3 m and 10 m. The question is, Is it possible calculate TAF for distances at 1 m, 3 m & 10 m using the AF at 1 m? It may be a different situation for the 1 m as I already have the AF at that distance. Do I need to get the calibrated AF for the other two distances? Thank you very much. Rodrigo Rodriguez ________________________________ The New Busy is not the too busy. Combine all your e-mail accounts with Hotmail. Get busy. <http://www.windowsl ve.com/campaign/thenewbusy?tile=multiac ount&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4> <http://www.windowslive.com/campaign/th newbusy?tile=multiaccount&ocid=PID28326 :T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
