bfaridnia

Very true. If you have the space, a separate POE switch provides more sustainability and helps in the event of troubleshooting power/video issues. Also, although not ideal, you also have the option to power most cameras via 12V supplies as well which could let you power the cameras locally where you are running low on POE ports. Only issue with this is you will need to go to the camera location to troubleshoot power issues and sometimes outlets are not readily available where you place cameras. Please also don't run multiple extension cords to get an outlet to reach. Another thing to note about the mobile access stream reduction is to be sure to do it on the extra stream that will be viewed remotely. Most NVRs and DVRs have dual streams. One for local recording to the hard drive and viewing and another that is accessible by remote access. You want to make sure you are adjusting down the remote access stream to meet around 80% of your ISP bandwidth and your internal stream to match around 80% of your local bandwidth (at the camera itself, since the camera will be sending the video over the network to the D/NVR when on the LAN). This is where planning helps. Only buy cameras that will be able to be sustained on your network. No point in investing in 3MP cameras when you will only view and record at D1. Any time. I was where you were once and learned what I know now from the knowledge shared by others more experienced than I. I am only trying to pass it on. But in the end you learn most by doing and learning from your successes and failures. We've all had the moment where we thought "hmm maybe I shouldn't have done that..." If you get stuck along the way, stop back by and the awesome people here will help you out. Best of luck!

https://community.ubnt.com/t5/UniFi-Video-Blog/airVision-2-1-3/ba-p/558443 But i think this runs within the framework of their cameras and is not intended to be a standalone product. Could be wrong though.

H Peja, Welcome to the forums. I will try my best to answer your questions but I am sure others will chime in as well with areas I might miss. I'd say since this is your first time, you may be better off going with a NVR which would allow for a bit of a simpler setup, smaller form factor (better for back offices in restaurants) There are many online calculators that will help you determine the answer here. It all depends really on the quality of the recording you are wanting, and the frame rate you are reording at. A google search will show you many options. One example can be found here: (first link in google search) http://www.supercircuits.com/resources/tools/security-nvr-storage-calculator I've used Duhua rebranded as Techvision via http://www.seuritycamerakingcom and have had great experiences with them. This is where a NVR helps eliminate many issues. The same provider above offers good NVR solutions that have built in POE, up to 20 remote users at the same time, etc.. I cant speak to server setups but I assume its the same as pointing the mobile browser to the public IP of the server. Check out securitycameraking website and see what they have there. There are many choices. In the end I prefer using separate mics for my audio which will allow me greater flexibility in what I am recording. Amazon has videosecu ones for around $6 each. IIRC Cat6 would be good for future proofing and help eliminate some common transmission errors with longer distance runs but Cat5e would be fine for what you are planning to do. For more information check out http://www.broadbandutopia.com/caandcaco.html Most NVRS will have poe ports as well. Its a matter of preference and having one less thing to take up a power outlet. Remember these back offices are already cramped and filled with paper and other items taking up space and outlets. The simpler you can make the setup on the owner, the happier they will be. Most cameras are manufactured to handle temperature ranges from -22F to +140. With the freezer install, just be weary of condensation on the lense cover as that would be the only thing to inhibit the video quality. Also be sure to seal the hole to which you route the line to the cooler as Ive seen some installs where it was left open and the client was paying to cool the attic. The best thing to do is just experiment with the different cameras out there to see what works for what you are trying to do. Something else to consider is making sure all networking equipment is capable to handle the amount of bandwidth you wish to use. Youll know that from using the calculator. Most cheaper consumer routers are only 10/100. You may want to look into gigabit equipment to ensure your network can handle the load. Lastly, ensure good internet speeds for remote access and drop the frame rates and quality down a bit when accessed remotely. Take your total download speed, then take 80% of that. Thats the total bandwidth you have to work with. Ensure all cameras that are accessed remotely when added up do not pass this number. Otherwise, you will bog down the network and maybe even lock it up to the point of a router/modem restart. (dont need to stream at 2mp on a small phone screen.) I bump my IP cameras own to 2CIF@15-30FPS or HD1@10-20FPS or D1 @7-15FPS depending on what it is covering. Hope that helps. Behzad

Auto keylock was set to never. The machine would not lock up, it simply just wouldnt return to the menu. Upon closer look, i noticed the date and time stamps were gone too. After a hard reset, the unit functions properly. Not sure what caused the issue, but it is (for now) resolved.

I have the Avtech DR041z which seems to be locking up after i exit the menu. I removed the hard drive and was able to replicate the issue. It doesn't matter how long i wait, but once i go into the menu, if i leave the menu the system freezes. Video still works fine, but none of the controls work anymore. Any ideas?

Found out that in order to hear the audio, I have to backup the file to my computer. I then can hear the audio. However, once i restart the program, and load the backup file, the audio goes away and the volume option is greyed out. i can hear audio onsite. Any ideas?

When in VideoViewer, when can I hear the audio during playback? Do I have to do a "backup" and then play the backup to hear the audio? or can I hit the play button on the DVR control and hear the audio from that. I am only recording offsite on the DVR and not locally on my laptop. Thanks.

so an update, I am replacing the unit with another to test the issue. It seems that the unit is supposed to overwrite on its own. The HDD shouldnt be defective however i am not ruling that out. I will put the HDD in the new unit and test. I will update with what happens. As for this specific build, the client feels that the unit is the problem and has offered to purchase a seperate retail unit on his own and have me install it. he wil pay for the labor of the new install. He feels brand names such as QSEE and Clover should work better than AVTECH. rather than argue i accepted his propsal and will see if that satisfies this build. I will update if the HDD is found to be defective or if it turned out to be the DVR. Thanks again for the input, i really appreciated it.

the issue is where the DVR does a Hard Disk Scan, completes then some time later (1-2min) restarts. It then boots up, does a HDD scan (for the restart) and then continues to record and then restarts. From my experience the DVR will stop showing space increasing at 4GB. It then leaves the remaining space for running the OS. But the restarting issue is the main problem here. It goes away when i turn off recording to the drive.

Do you guys think it could be a firmware issue? where would i find the 'current' firmware version for this model (792)

Any updates on this? I am having the same problem, except I cant even get mine to record over the earliest 8GB.

Well, i set the remote config - recording, overwrite on in the API, however i feel that this is for the computerAPI recording, and not the onboard HDD in the DVR. I found all DVD only settings in Misc Controls, Remote Config. The HDD buzzer is off but i still dont know whats going on with the low space errors. Powersupply is what came with the DVR. And the issue only came about once the HDD ran low on storage space. (after 14 days of use) Leading me to believe it is not a power supply issue. My Recording Menu looks exactly like this but without the Overwrite option. tinyurl(dotcom)/yftj4ox

Hi, I have a AVTech 792 and i have a mic going to the RCA input using a 3.5mm to RCA adapter. I have it set for channel one. However i am unable to hear the recording when i view via the Video Viewer API. I have set the connection to Video/Audio and yet still cannot hear anything. What am i missing? (tested the mic, everything works)

Hi I have a Avtech AVC760/792 (not exactly sure), with 250GB hard drive inside. It has reached its low capacity and now has just .029GB left. The DVR keeps beeping for the low HDD space and keeps doing this Hard Disk Scan. Once the scan completes the DVR reboots. This is cycling over and over now ever since the HDD became full. If i turn off recording, everything works fine. How do i turn HDD function over to Overwrite mode where it will just keep erasing the older files and replacing them with the newer? I am using H.264 compression and the new Video Viewer API. Thanks! I have attached a pic of the screen right showing the red low space notification.