Overview

The parameters box shows detailed information about what is happening inside the repeater. Ideally, we want to see the DL Power (downlink) close to about +6dBm for each band. Any more power will be automatically attenuated, thus keeping the level consistent at 6dBm. However, in weak signal areas, it is possible that the signal, especially at the upper bands (B1/B7) will be below this level.

If we see AGC due to high power (above 6dBm) this is OK. However, if we see more than 15dB of AGC, you should add some manual attenuation to this band. For a repeater, between 0 and 15dB of AGC is OK, but higher than this level is not OK, and manual attenuation should be added. For a lineamp and AGC higher then 6dB, add some manual attenuation.

If we see Clamp on any band, add some manual attenuation. Clamp is explained below.

UL Power (dBm)

This is a measure of how much power your phone is emitting. The higher this value, the more your phone is trying to get its signal back to the base station.

This typically means you are in a weak signal area, or the cell tower your phone is trying to connect to is very weak. If this value remains very low, this means there is alot of signal available in your location, and your phone does not need to emit a lot of power to get its signal back to the base station.

DL Power (dBm)

This is a measure of the downlink signal strength from the base station. This is similar to the signal bars on your phone.

AGC (dB)

This is the downlink AGC (Automatic Gain Control). The closer you are to a mobile cell tower, the greater this value will be. If the power on a band increases above +6dBm, AGC will be activated and will add attenuation so as to keep the max power at a steady +6dBm.

UL Fast AGC (dB)

This is the uplink AGC (Automatic Gain Control). When your phone/router emits a lot of power, and this power increases above +20dBm (max allowable UL power), the device will add attenuation automatically to keep the UL power at at maximum of +20dBm.

Clamp (dB)

Extra permanent attenuation added when there is a Reduced Gain event. This ensures any oscillations are dampened very quickly.

Band Usage

Indicates how often the band is active. It is an average over the last 10 minutes. The band is only switched on when a call or data session is detected. Otherwise, the band is switched off after 20 seconds of inactivity.