Cellular Signal Strength Analyzer Tools
Measure 4G,3G,M1, & NB-IoT Signal Strength and Quality with option to log and display data in the cloud.
Cellular Network Analyzer Tools
Measure 4G,3G,M1, & NB-IoT Signal Strength and Quality with option to log and display data in the cloud.
User friendly low-cost hand-held instrument for measuring a wide range of Cellular Network Parameters such as RSRP, RSRQ, RSSI, SINR, Signal Strength, Signal Quality, Cell ID, Network Provider, Bands. Look at LTE Signal Strength Values for better understanding.
Designed to help installers of modems, routers, signal boosters and antenna systems confirm signal coverage, strength and quality. Select best Antenna for each site.
Optional www.cellnet.io cloud application provides additional user friendly features such as logging collected data, device location, nearest and nearest cell phone tower.
- Data Logging to device memory
- Optional Data Logging to Web Cloud Application (cellnet.io)
- Measures Network Latency, Ping Times,
- Measures Network Latency, Ping Times,
- Select Mobile Network Operator, APN, and Band
- Rechargeable Battery via USB
Step 1
Choose 770 Model
Step 2
Choose SIM-card
Step 3
Add CellNET?
4G (LTE)
For 4G service mode, there are four relevant measurements:
- RSSI – Received Signal Strength Indicator. RSSI is a negative value, and the closer to 0, the stronger the signal
- RSRP – the Reference Signal Received Power is the power of the LTE Reference Signals spread over the full bandwidth and narrowband
- RSRQ – Reference Signal Received Quality is a C/I type of measurement and it indicates the quality of the received reference signal (similar to EC/IO)
- SINR – Signal to Interference plus Noise Ratio (A minimum of -20 dB SINR is needed to detect RSRP/RSRQ). Indicates the throughput capacity of the channel. As the name implies, SINR is the strength of the signal divided by the strength of any interference
| RSRP | Signal strength | Description |
|---|---|---|
| >= -80 dBm | Excellent | Strong signal with maximum data speeds |
| -80 dBm to -90 dBm | Good | Strong signal with good data speeds |
| -90 dBm to -100 dBm | Fair to poor | Reliable data speeds may be attained, but marginal data with drop-outs is possible. When this value gets close to -100, performance will drop drastically |
| <= -100 dBm | No signal | Disconnection |
| RSRQ | Signal quality | Description |
|---|---|---|
| >= -10 dB | Excellent | Strong signal with maximum data speeds |
| -10 dB to -15 dB | Good | Strong signal with good data speeds |
| -15 dB to -20 dB | 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 |
| <= -20 dB | No signal | Disconnection |
| SINR | Signal strength | Description |
|---|---|---|
| >= 20 dB | Excellent | Strong signal with maximum data speeds |
| 13 dB to 20 dB | Good | Strong signal with good data speeds |
| 0 dB to 13 dB | Fair to poor | Reliable data speeds may be attained, but marginal data with drop-outs is possible. When this value gets close to 0, performance will drop drastically |
| <= 0 dB | No signal | Disconnection |
RSSI for LTE is a calculated from several other signal related measurements: RSSI = Wideband power = noise + serving cell power + interference power. For example, a 4G LTE modem might report an RSSI of -68 dBm, but:
RSRP = -102 dBm
RSRQ = -16 dB
SINR = -1.8 dB
In this case, the signal quality is actually very poor. This could be due to the device being some distance away from the LTE transmitter. It’s also possible that something is interfering with the signal, such as a building or other obstructions between the device and the tower.
| RSSI | Signal strength | Description |
|---|---|---|
| > -65 dBm | Excellent | Strong signal with maximum data speeds |
| -65 dBm to -75 dBm | Good | Strong signal with good data speeds |
| -75 dBm to -85 dBm | Fair | Fair but useful, fast and reliable data speeds may be attained, but marginal data with drop-outs is possible |
| -85 dBm to -95 dBm | Poor | Performance will drop drastically |
| <= -95 dBm | No signal | Disconnection |
To check the 4G signal strength values of your RUT device, log in to your router’s WebUI and go to the Status -> Network -> Mobile window:
3G (WCDMA, TDSCDMA, CDMA, EVDO, CDMA-EVDO)
For 3G service mode, there are three relevant measurements:
- RSSI – Received Signal Strength Indicator. RSSI is a negative value, and the closer to 0, the stronger the signal
- EC/IO – indicates the downlink carrier-to-interference ratio (signal quality).EC/IO is a negative dBm value. Values closer to 0 are stronger signals
- RSCP – indicates the Received Signal Code Power
The RSSI standard values for 3G are basically the same as 2G
| RSSI | Signal strength | Description |
|---|---|---|
| >= -70 dBm | Excellent | Strong signal with maximum data speeds |
| -70 dBm to -85 dBm | Good | Strong signal with good data speeds |
| -86 dBm to -100 dBm | Fair | Fair but useful, fast and reliable data speeds may be attained, but marginal data with drop-outs is possible |
| < -100 dBm | Poor | Performance will drop drastically |
| -110 dBm | No signal | Disconnection |
| 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 |
| RSCP | Signal strength | Description |
|---|---|---|
| -60 to 0 | Excellent | Strong signal with maximum data speeds |
| -75 to -60 | Good | Strong signal with good data speeds |
| -85 to -75 | Fair | Fair but useful, fast and reliable data speeds may be attained |
| -95 to -85 | Poor | Marginal data with drop-outs is possible |
| -124 to -95 | Very poor | Performance will drop drastically, closer to -124 disconnects are likely |
To check the 3G signal strength values of your RUT device, log in to your router’s WebUI and go to the Status -> Network -> Mobile window:
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