Signal Strength to Speed Relation

Phil031

Member
Joined
Jun 28, 2006
Messages
16
Hi there

I'm curious. What is the relationship between signal strength (number of bars) to the connection speed?

My understanding is that the signal strength relates to stability of connection, so indirectly affects speed i.e re-sending lost packets etc. Whereas connection speed is dependent on number of concurrent users and network traffic.

Is this accurate?

Phil
 

vodacom3g

Vodacom Representative
Joined
Jan 14, 2005
Messages
12,065
Phil031 said:
Hi there

I'm curious. What is the relationship between signal strength (number of bars) to the connection speed?

My understanding is that the signal strength relates to stability of connection, so indirectly affects speed i.e re-sending lost packets etc. Whereas connection speed is dependent on number of concurrent users and network traffic.

Is this accurate?

Phil

Throughput is proportional to signal strenght, as the system will use less effective coding and modulation schemes to compensate for lower signal quality.
 

Napalm

Expert Member
Joined
Jun 22, 2006
Messages
3,052
Low signal levels will lead to connection timeouts or disconnection.. and yes.. If the signal is weak u might get 1kb or 2kb a sec, vs if u got full speed maybe a 3-6kb per second (Maybe up to 16kb per sec on Edge)
 

Phil031

Member
Joined
Jun 28, 2006
Messages
16
Signal strength

Would 3 bars of signal strength on a 3G connection be stable enough?
 

grubsner

Well-Known Member
Joined
Feb 21, 2005
Messages
375
This is from my experience...

Two bars is good enough for 3G speeds, HSDPA speed starts to suffer at 2 bars and the speeds is reduced to around a maximum of 700 kpbs approx.

My signal strength drifts between two and one bar signal. When the signal strength is around 1 bar I have to use the external antenna. Although there is no signal strength increase the connection is more stable and good speeds can be obtained (500 - 700 kpbs)

3 bars should be sufficient for good HSDPA speeds. Use the external antenna where possible.

External interference could also cause instabilities with 3G/HSDPA signal. Bluetooth and WiFi could have an impact on the speeds and performance because the frequencies are very close together. I try not to use the WiFi/Bluetooth adapter on my Laptop when connected to 3G.

My 2c worth...
 
Last edited:

MrG

Executive Member
Joined
Feb 12, 2005
Messages
6,007
grubsner said:
This is from my experience...

Two bars is good enough for 3G speeds, HSDPA speed starts to suffer at 2 bars and the speeds is reduced to around a maximum of 700 kpbs approx.

My signal strength drifts between two and one bar signal. When the signal strength is around 1 bar I have to use the external antenna. Although there is no signal strength increase the connection is more stable and good speeds can be obtained (500 - 700 kpbs)

3 bars should be sufficient for good HSDPA speeds. Use the external antenna where possible.

External interference could also cause instabilities with 3G/HSDPA signal. Bluetooth and WiFi could have an impact on the speeds and performance because the frequencies are very close together. I try not to use the WiFi/Bluetooth adapter on my Laptop when connected to 3G.

My 2c worth...

The above text is equal to 4kb - @ R2 per MB it would be your R0.0078c worth :D
 

grubsner

Well-Known Member
Joined
Feb 21, 2005
Messages
375
Thanks for clearing that up G!

Should we call it Chinese Maths then?:D
 
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