Thank you sir, probably the only video that actually explains what Link Budget is instead of just putting it in the title and never mention it again...
For other viewers, had to google this - antennas don't *add* power, they *concentrate* it. Notice how the antennas are in dBi where everything else is dBm? dBi (as stated in a previous video) is "dB compared to an isotropically (uniformly) radiating antenna", so it's basically a measure of how much the antenna concentrates the signal.
There is a difference. Maximum Link Budget is the MAXIMUM budget you are not allowed to exceed. Analogous: On a highway the maximum speed is 120 km/h but your car speed is 80 km/h Here is an article how these values are used: www.gsm-modem.de/M2M/m2m-faq/comparison_tx-energy-consumption-across-lpwan-us-12-bytes-nb-iot-lorawan-sigfox/
The main factor used to compare LPWAN technologies is the link budget. This is a key parameter in determining the range of the system. For example: www.semtech.com/products/wireless-rf/lora-transceivers/SX1276 168dB maximum link budget Find other LPWAN technologies you wish to compare with LoRa
Thank you sir, probably the only video that actually explains what Link Budget is instead of just putting it in the title and never mention it again...
For other viewers, had to google this - antennas don't *add* power, they *concentrate* it. Notice how the antennas are in dBi where everything else is dBm? dBi (as stated in a previous video) is "dB compared to an isotropically (uniformly) radiating antenna", so it's basically a measure of how much the antenna concentrates the signal.
At last - link budgets clearly explained with a sourced reference to receiver sensitivity. Thank You!
Thanks clear explanation, link margin will be in dB unit
This is a very clear explanation. thank you for the excellent video
Cheers mate! you are my go to source for Lora info and education! :-)
good information briefly explained :)
Very good and useful, Thank you
Plz tell me the link margin formula
Magnificent explanation!!!
awesome explanation, but what about spreading factor?,can spreading factor affect receiver sensitivity and path loss?
This will be explained in later tutorials. There will be at least 19 tutorials...
One can add dBm and db or dbi?
Very clear!
Thank you for your video!
Can anyone tell me what is the formula of link margin?
Finally a clear explanation! Thx man!
Can you confirm the unit for the link budget? To me, it should be dB instead of dBm. For example, 168dBm is a huge power I cannot even think of.
RssI calculation is done in dBm .How can we add two different unit as same. dB and dBm are different ,on conversion +or - 30 has to be used??
My harmonic IRD shows link margin of 3, is it possible to know in dbm how much IF input signal is given to get 3 link margin ??
i like all of your videos
0:13 Discontinuous phase modulation?
what is link margin and calculate the link margin received power in 80 dbm and receive senstindly is 90 dbm
help me a lot thank you
is this also applicable to microwave communication?
Fantastic explaination
is there a difference between Link Budget and Maximum Link Budget?
There is a difference.
Maximum Link Budget is the MAXIMUM budget you are not allowed to exceed.
Analogous:
On a highway the maximum speed is 120 km/h but your car speed is 80 km/h
Here is an article how these values are used: www.gsm-modem.de/M2M/m2m-faq/comparison_tx-energy-consumption-across-lpwan-us-12-bytes-nb-iot-lorawan-sigfox/
No information specific to LoRa transmission given . Can u please take an LoRa actual case?
The main factor used to compare LPWAN technologies is the link budget.
This is a key parameter in determining the range of the system.
For example:
www.semtech.com/products/wireless-rf/lora-transceivers/SX1276
168dB maximum link budget
Find other LPWAN technologies you wish to compare with LoRa
Gem