Difference between revisions of "EC/IO"
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− | The '''EC/IO''' is a measure of the quality/cleanliness of the signal from the tower to the modem and indicates the signal- | + | The '''EC/IO''' is a measure of the quality/cleanliness of the signal from the tower to the modem and indicates the signal-to noise ratio (the ratio of the received/good energy to the interference/bad energy). It is measured in decibels (dB). In a perfect world, where there is no true interference, the interference level is equal to the noise level resulting in an EC/IO = 0 dB. Once the EC/IO is above ~ -7.0 dB, your connection is going to suffer. |
− | More information on EC/IO can be found in the [[Mobile Signal Strength Recommendations#3G_.28WCDMA.2C_TDSCDMA.2C_CDMA.2C_EVDO.2C_CDMA-EVDO.29|3G]] section of the [[Mobile Signal Strength Recommendations]] page. | + | There are several factors that can contribute to a higher EC/IO value, including florescent lighting, electric motors, equipment, power supplies, bad/poor cabling, trees, hills, buildings, walls, shorted connectors, inaccurate antenna alignment, wrong antenna polarization, congestion at the tower, etc. |
+ | |||
+ | More information on EC/IO values can be found in the [[Mobile Signal Strength Recommendations#3G_.28WCDMA.2C_TDSCDMA.2C_CDMA.2C_EVDO.2C_CDMA-EVDO.29|3G]] section of the [[Mobile Signal Strength Recommendations]] page. | ||
+ | |||
+ | {| class="wikitable" | ||
+ | |+ style="text-align: left;" | EC/IO | ||
+ | ! style="width: 200px; background: black; color: white;" | EC/IO | ||
+ | ! style="width: 200px; background: black; color: white;" | Signal quality | ||
+ | ! style="width: 950px; background: black; color: white;" | Description | ||
+ | |- | ||
+ | ! style="text-align: left; background: #6ACE61;" | 0 to -6 | ||
+ | | style="text-align: left; background: #6ACE61;" | '''Excellent''' | ||
+ | | style="text-align: left; background: #6ACE61;" | Strong signal with maximum data speeds | ||
+ | |- | ||
+ | ! style="text-align: left; background: #FBFB43;" | -7 to -10 | ||
+ | | style="text-align: left; background: #FBFB43;" | '''Good''' | ||
+ | | style="text-align: left; background: #FBFB43;" | Strong signal with good data speeds | ||
+ | |- | ||
+ | ! style="text-align: left; background: #EC031D;" | -11 to -20 | ||
+ | | style="text-align: left; background: #EC031D;" | '''Fair to poor''' | ||
+ | | style="text-align: left; background: #EC031D;" | Reliable data speeds may be attained, but marginal data with drop-outs is possible. When this value gets close to -20, performance will drop drastically | ||
+ | |- | ||
+ | |} |
Latest revision as of 14:39, 7 October 2020
The EC/IO is a measure of the quality/cleanliness of the signal from the tower to the modem and indicates the signal-to noise ratio (the ratio of the received/good energy to the interference/bad energy). It is measured in decibels (dB). In a perfect world, where there is no true interference, the interference level is equal to the noise level resulting in an EC/IO = 0 dB. Once the EC/IO is above ~ -7.0 dB, your connection is going to suffer.
There are several factors that can contribute to a higher EC/IO value, including florescent lighting, electric motors, equipment, power supplies, bad/poor cabling, trees, hills, buildings, walls, shorted connectors, inaccurate antenna alignment, wrong antenna polarization, congestion at the tower, etc.
More information on EC/IO values can be found in the 3G section of the Mobile Signal Strength Recommendations page.
EC/IO | Signal quality | Description |
---|---|---|
0 to -6 | Excellent | Strong signal with maximum data speeds |
-7 to -10 | Good | Strong signal with good data speeds |
-11 to -20 | Fair to poor | Reliable data speeds may be attained, but marginal data with drop-outs is possible. When this value gets close to -20, performance will drop drastically |