Thank you so much. I'm learning wireless networking in my second language and it parts it can be quite difficult. Your video is very clear and easy to understand. You made my life a little bit easier today. Thanks again.
Hi Joes - thanks for taking an interest in the video. I think you will fine that the 'fresnel region' is different to the 'fresnel zone' mentioned here in the video. I think you actually mean the 'fresnel region' in your message and you are quite right about what that.
hi, there is no problem using dBm's and dB's in the same model - well as long as you are careful. remember that a dbm is simply a db value relative to 1mw of power. so you can 'modify' this dbm value using db values. for example ifyou have a 1mw signal and amplify it by 10× you get a 10mw signal. doing this in the db world you start with a 0dbm value (1mw) and add 10dbs to this (equiv to 10x gain) you the get 10dbm's. 10dbms is 10mw. hope this helps
@@grahamsexton1 cheers Graham I shall practice some more exercises - I get it ....then I don't - but I find it well worth the effort. What a fascinating subject this is ..
Thank you so much. I'm learning wireless networking in my second language and it parts it can be quite difficult. Your video is very clear and easy to understand. You made my life a little bit easier today. Thanks again.
My favourite teacher 2008-2009
Isn't fesnel zone the region between near field and farfield? That means depending on frequency for outdoor LoS links will be few meters or less.
Hi Joes - thanks for taking an interest in the video. I think you will fine that the 'fresnel region' is different to the 'fresnel zone' mentioned here in the video. I think you actually mean the 'fresnel region' in your message and you are quite right about what that.
hi. can you put the links for components, etc., from your ppt in the notes section? thanks.
Not quite sure what you mean. The components are generic rather than being manufacturer specific. Thanks Graham
Not too sure about this -you cant mix dbm with db i thought?
hi, there is no problem using dBm's and dB's in the same model - well as long as you are careful. remember that a dbm is simply a db value relative to 1mw of power. so you can 'modify' this dbm value using db values. for example ifyou have a 1mw signal and amplify it by 10× you get a 10mw signal. doing this in the db world you start with a 0dbm value (1mw) and add 10dbs to this (equiv to 10x gain) you the get 10dbm's. 10dbms is 10mw. hope this helps
@@grahamsexton1 cheers Graham I shall practice some more exercises - I get it ....then I don't - but I find it well worth the effort. What a fascinating subject this is ..
@@eamonncolley5249 glad you are enjoying it Eamonn !