This might be explained as technology is more effective for sharing the information which is available on the smartphone application for obtaining situational awareness and for coordination. The results indicate that information categories which are formulated more recurrent in second scenario than first scenario. The presented results combine observations, qualitative and quantitative data analysis on videotaped data after the game. So, in this study we conduct an indoor fire drill with the help of Smartphone application with two settings (without SmartRescue smartphone application and with SmartRescue smartphone application) to find out what type of information is mostly communicated in both scenarios and needed by response teams. Moreover, one of the key actions of rescue leaders is to get the needed information in order to coordinate effectively with other teams and perform well. However, one of the key challenges experienced by these rescue groups during SAR operation is obtaining the complete awareness of the situation from the shared information. Questions? Contact us or submit a new ticket for support-related inquiries.In search and rescue (SAR) operation, a lot of information is being shared among different emergency response groups. If you adjusted the Playback device volume all the way up and there is still no distortion and/or the volume is still too low, turn up the Playback amplifier, testing the sound quality by sending messages after every adjustment. Adjust the setting down slightly, which should give you the optimal level.ġ0. Slowly turn up the Playback device volume, testing the sound quality by sending messages after every adjustment, until the sound starts to distort. This should give you an undistorted voice, but it will likely be very quiet.ĩ.
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On the Zello Work PC app, set the Playback device volume to 1/4 of the full value. If transmissions are still causing a lot of noise, adjust the phone volume.Ĩ. Once you accomplish sending a silent transmission with an acceptable level of noise, change the Recording amplifier setting on your Zello mobile app back to 0 dB and try again.ħ. Try moving any nearby cables, and then send another message to see if the noise changes.Ħ. The most common source of noise will be interference from electrical equipment near the gateway and/or radio. (Make sure you send it as a 1:1 conversation from the contacts screen, rather than in a channel.) If you still get a high level of noise, you need to troubleshoot before proceeding with these instructions. Send a message from the phone to the gateway. On a phone, create silent audio within the Zello app by going to Menu > Options/Settings > Audio and setting the Recording amplifier to -20 dB.ĥ. Set the Playback amplifier to 0 dB from the Audio page of the Zello Work PC app.Ĥ. You should be able to clearly hear this transmission.ģ. Set the volume on the test radio to a comfortable level, and have someone send you a message from another radio in another room. Please make sure that the donor radio is connected to the gateway, as well as that there are no other radios in the room, as other radios can cause acoustic feedback that interferes with your test.Ģ. You need to carefully decrease volume levels until the distorted audio is eliminated.ġ. If the level of noise from Zello to Radio is very high, this could be a sign that the PC audio output is overloading the audio input of the radio. Adjust the Playback amplifier from the audio page of the Zello Work app Adjust the Playback device volume from the audio page of the Zello Work appĢ. Test the Recording amplifier from the Audio page of the Zello Work app.ġ. Turn the setting up if the volume is too low.ģ.Turn the setting down if you are receiving too much noise.Test the Recording device volume from the Audio page of the Zello Work app. Turn the radio volume up if messages are too faint.Ģ.Turn the radio volume down if messages come in with too much noise.Test the volume settings on the physical radio connected to the gateway. In the following order, make these changes to your configuration, testing from Zello to the Radio and back after each change. Part Three: Radios receiving messages with very loud audio
Part Two: Radios receiving messages with noise and/or faint audio Part One: Zello receiving messages with noise and/or faint audio From the Zello Work app, open "Tools"> "Options"> "Audio." You should see this page: Do not make all changes at once.Īll troubleshooting methodologies in this article take place on the Audio settings page of the Zello Work PC app. Follow the steps below in order, testing from Zello to the Radio and back after each change. This article lays out steps to troubleshoot audio that is either too loud or too quiet. After setting up a gateway and receiving audio from Zello to the radios and vice versa, you may experience issues with the audio volume.
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