AVC 787D vs G4

[Slim3001 0]

Right guys im sory for asking the same type question againe but Need to ask.

 

I have found a AVC 787D DVR Lets use USD for the money.

 

So I found a USED AVTECH AVC 787 dvr its a 16channel Mpeg 4 system now looking around it dont seem to bad.

 

But is it as good as the new dvr im looking to buy

( Intellicam G4-HD-E 8 channel aka apollo)

 

The AVC787D is $100 and the G4 is $184

 

The avc is a Mpeg4 system the G4 is a H.264

 

Avc pdf http://www.avtech.com.tw/image/product_pic/doc/AVC787.pdf

The G4 aka Apollo pdf http://www.onlinesecurityproducts.co.uk/user/downloads/ApolloHD-Series-DVR-User-Manual.pdf

 

 

Now Im not asking you to read both there just there incase you wonted to

 

Anyway the thing I think I need to look at is the Recording Rate

 

AVC 787

Maximum Recording Rate

FRAME: 100 IPS @ 704×576

FIELD: 200 IPS @ 704×288

CIF: 400 IPS @ 352×288

 

Adjustable Recording Speed

FRAME: 100, 50, 25, 12 IPS

FIELD: 200, 100, 50, 25 IPS

CIF: 400, 200, 100, 50 IPS

 

G4/APOLLO

 

PAL

Real-time monitor：

D1 704×576

I think only 1 channel can record in D1 the rest are CIF

Playback：

1/9-ch: D1 704×576 , CIF 352×288/ , QCIF 176×144

Other channels CIF 352×288 QCIF 176×144

Support dual streams: extra stream resolution QCIF 176×144

 

Frame rate: there are six levels: 1 f/s, 2f/s, 3f/s, 6f/s, 12f/s, 25f/s.

 

Its hard to know whats what with the apollo spec sheet for me anyway.

 

So there you go guys

Thanks for any info Oh and ill be using a min of 3 cameras and a max of 6 for now

[scorpion 0]

Hello everyone!

 

But is it as good as the new dvr im looking to buy

( Intellicam G4-HD-E 8 channel aka apollo)

 

The AVC787D was introduced in 2005, and has been updated ever since.

The product is still available due to mass production, and inexpensive price range. This DVR has been "replaced" by the AVD717, and the AVD718. Based on prices that you posted then the AVTech wins based on price.

 

You cannot compare the two products! That is comparing apples, and oranges!

 

I would tell you to buy the G4!

 

If you want to compare the G4 to an AVTech H.264 DVR then use the AVTech AVC798D

http://www.avtech.com.tw/english/cctv_feature.aspx?ID=AVC798D

 

http://www.avtech.com.tw/english/cctv_spec.aspx?ID=AVC798D

 

The AVTech is always going to be cheaper then the G4.

 

The AVC787D is $100

Are you kidding? Anytime you can buy a 16 channel DVR for $100 US then buy it!!

 

WARNING ABOUT OLDER DVRS: If they are using IDE drives then make sure you know how much an IDE hard drive cost to replace in todays economy. Check your computer store to see if they carry them, and how much. If you do not have a ready supplier then you may want to avoid any DVR that uses IDE drives!

 

It would be more preferable to buy a used SATA drive DVR as the SATA drives are more available, and cheaper compared to IDE drives.

 

What kind of hard drive does the AVTech DVR have? I suppose you could use an IDE to SATA converter!

 

the G4 is $184

Are you sure about this price brand new? I would avoid this. The price is to good. I peeked in a Shoreview Security's website to see the price, and these do not match in price.

 

If this is a used price then I would say buy both DVRs!! The G4 has a SATA drive so based on the prices you quoted then the G4 is the better buy based on the hard drive.

 

 

There are better DVRs to buy in the used price range so both lose.

 

 

H.264 is graphic intesive. This requires some hefty chipsets. What chipset does the G4 use?

[scorpion 0]

Thanks for any info Oh and ill be using a min of 3 cameras and a max of 6 for now

 

http://scorpiontheater.tech.officelive.com/Documents/AVTech_Manual_English_CPD503_505_507_V0.99.pdf

[Slim3001 0]

Sorry I did not work it out I just put USD when its in GBP.

All so its the dvr is the (ASV versionand is upgraded to have: MPEG4 network transmission, and built-in SATA HDD interface and VGA output interface.]

 

 

You cannot compare the two products! That is comparing apples, and oranges!

 

I would tell you to buy the G4!

OK cool I see what you saying It was just it was a lot cheaper but it is used

 

 

The AVC787D is $100

Are you kidding? Anytime you can buy a 16 channel DVR for $100 US then buy it!!?

Sorry m8 in USD its $200 in GPB its £119

 

WARNING ABOUT OLDER DVRS: If they are using IDE drives then make sure you know how much an IDE hard drive cost to replace in todays economy. Check your computer store to see if they carry them, and how much. If you do not have a ready supplier then you may want to avoid any DVR that uses IDE drives!?

Hi m8 I think the unit is the ASV so it runs Sata

 

 

What kind of hard drive does the AVTech DVR have? ?

Its base only no hard drive removed buy owner

 

the G4 is $184

Are you sure about this price brand new? I would avoid this. The price is to good. I peeked in a Shoreview Security's website to see the price, and these do not match in price.?

 

Hi m8 yer thats the new price is £186 but againe in GBP In USD its $310 with out Hard drive Im going to be adding a seagate 1tb sv35 drive as long as I can get one if not 750/500GB

 

 

H.264 is graphic intesive. This requires some hefty chipsets. What chipset does the G4 use?

 

Hi m8 all it say's for the spec to the chipset is High-performance industrial embedded micro controller

 

It adopts embedded Linux OS to maintain reliable operation. Popular H.264 compression algorithm and G.711 audio compression

 

Thats the same on any of the rebaged units the unit im getting in the UK is called Apollo or Robox in the US its called Intellicam G4-HD-E and in the place there made China there called Dahua If you look at the Dahua website just google it you will see how just how many unit's out there in the world are rebaged Dahua units I was shocked when I found the same unit under 4 diffrent brand's

 

Thanks for taking time to reply to me

[tomcctv 190]

Hi slim.

 

regarding the apollo. i have come across this system a few times here in the uk. it is a very very basic system. 1 problem is you can only back-up 2 cameras at a time and you also need to stop the system recording to do this (most people forget to hit record when finnished) and you get a lot more for your money from systems like avertech or avermedia.

[Slim3001 0]

Hi slim.

 

regarding the apollo. i have come across this system a few times here in the uk. it is a very very basic system.

 

Hay Tom how you doing thanks for the info but question for you.

Witch Apollo dvr unit you talking about and what would be classed as basic system?. Im new to dvr's so cant say I know what good to have and whats not.

 

What I can say is this the system has a Pentaplex function so it can do a number of things at at the same time.

Real-time monitoring at D1, Multiple-channel record, multiple-channel playback, backup & remote access all at the same time and there still loads more.

 

The system all so has a number of ways to backup

Support peripheral USB backup device. (Flash disk, portable disk and etc.)

Support USB burner (extension function).

Support network download and backup

 

1 problem is you can only back-up 2 cameras at a time and you also need to stop the system recording to do this (most people forget to hit record when finnished) and you get a lot more for your money from systems like avertech or avermedia.

 

Witch Apollo dvr unit you talking about m8 as I cant find anything in the book saying about Backing up only 2 cameras at a time.

 

Next a dum question and maybe it will give me the nod where to look in the book but what do you meen buy only backing up 2 at a time.

 

I was looking at getting the Jupiter V2 4ch H264 High Resolution DVR aka AV792 but its only 4 channel and cost more then the apollo 8 channel.

[scorpion 0]

The DVR that I am familiar with that the posted H.264 DVR reminded me of from the how the menu is set up was an 8 channel DVR, and you could not watch all 8 channels in 8 ch screen. You could only view two camera views, but you could press the camera buttons, and change the views.

 

I was not happy about the two channel view, and the customer was very displeased. This went in to a live fire shoothouse, and they use the CCTV system as an after action report to see how they did.

 

What got me out of the jam was the extreme clarity of the video on playback. I told them "I selected this DVR on purpose"! "It may only give two camera views, but you can press the buttons to see where they go, and look how clear those pictures are. You can see every detail"!

 

They agreed that the video view was more important then the total camera view screen.

[Slim3001 0]

The system I looked at use the same firmware/ software as this unit in the video.

. And is made buy the same outlet

 

Apart from when guy only brings up one cam on playback the system I looked at in the shop had all 8 cam's come up on show and it was night time in the playback. And then back in live viewing I could see 8 cam's all running

 

Maybe I dont understand im not going to say I do lmao im a dum dum today but then no sleep for 2 days will do that to ya

[scorpion 0]

This is true of anyone buying a DVR. Knowing what you are getting, and what the trade offs are going to be, and the the budget being spent makes it a land mine.

 

I cannot speak for any of the H.264 DVRs that are mentioned in this thread.

 

You do have to know the difference between live view which can be multi screen, and playback video.

 

It will depend on the type of chipset, or the number of chipsets used.

 

There are chipssets that can only do two channels of video. In the expensive DVRs they will install chipsets to match the total number of camera channels. In the entry level market the base price would preclude multi chipsets, or they would have to install chipset that have multi channels, but the picture would be degraded.

 

This goes back to my question of what kind of chipsets are in the DVR.

 

The real question is "what is the job of the DVR"? This will ditate what kind of DVR one would purchased based on the budget.

 

For this thread it does not matter for the low prices being quoted.

Buy all of the DVRs, and do a live test. The one that best suites your needs wins, and you turn around, and sell the DVR that does not meet your specs.

 

One man's garbage is another man's treasure (and vise versa)!

[Slim3001 0]

All the info on the system im looking to set can be found her friend

http://www.cctvforum.com/viewtopic.php?t=18872&postdays=0&postorder=asc&start=0

 

I think im going to buy new now as I dont know enough about dvr's to buy secend hand of ebay. And dont wont to kick my salf for getting the wrong one

[scorpion 0]

I do not know if this info is relevant in todays market, but in the 2006 time frame this company was selling H.264 products before I even knew what H.264 was.

 

I had a project that had requirments for perfect view over the internet.

 

Where in the world do you find a DVR that had this kind of spec, but in a lower price range compared to other DVRs that could meet the spec, but was priced to far above the budget?

 

I started researching ICRealtime DVRs.

 

Here is what I have:

 

 

http://en.wikipedia.org/wiki/Blackfin

 

Circa 2006

 

BLACKFIN ONLINE LEARNING AND DEVELOPMENT (USED IN ICREALTIME PRO SERIES DVRS)

http://www.analog.com/processors/learning/index.html

 

BLACKFIN ONLINE LEARNING AND DEVELOPMENT (USED IN ICREALTIME PRO SERIES DVRS)

http://www.analog.com/en/embedded-processing-dsp/blackfin/content/index.html

 

BLACK FIN CORE PROCESSOR

http://www.analog.com/en/embedded-processing-dsp/blackfin/content/blackfin_core_basics/fca.html

 

BLACKFIN PROCESSOR ARCHITECTURE OVERVIEW

http://www.analog.com/en/embedded-processing-dsp/blackfin/content/blackfin_architecture/fca.html

 

BLACKFIN PROCESSOR HIGHLIGHT PDF'S

http://www.analog.com/en/embedded-processing-dsp/blackfin/processors/product-highlights/resources/index.html

 

DATA SHEETS

http://www.analog.com/en/embedded-processing-dsp/blackfin/processors/data-sheets/resources/index.html

 

Workshops

http://www.analog.com/processors/blackfin/training/workshops/index.html

 

University Program Frequently Asked Questions

http://www.analog.com/processors/universityProgram/universityfaq.html

 

____________________________________________________________

 

USED IN ICREALTIME FLEX SERIES DVRS. Circa 2006

 

PHILIPS TRIMEDIA VIDEO PROCESSOR

http://en.wikipedia.org/wiki/TriMedia

 

THE TRIMEDIA TM-1 PCI VLIW MEDIA PROCESSOR PDF

http://www.hotchips.org/archives/hc8/3_Tue/HC8.S6/HC8.6.1.pdf

 

PAPER TM3270 MEDIA PROCESSOR PDF

http://ce.et.tudelft.nl/publicationfiles/1228_587_thesis_JAN_WILLEM.pdf

 

MOTION ESTIMATION PERFORMANCE OF THE TM3270 PROCESSOR PDF

http://ce.et.tudelft.nl/publicationfiles/982_587_sac2005_v6.pdf#search=%22tm3270%22

 

TRIMEDIA USER GROUP (YAHOO)

http://tech.groups.yahoo.com/group/trimedia/

[rory 0]

BTW, just a note, the video quality of most H264 DVRs is rubbish and especially with the cheap ones, not speaking about any in particular, just a general statement, so buyer beware.

[Slim3001 0]

Hay friend I dont wont to offend you but I have no idea what any of them link's are for or about. Way over my head

 

PS had a look and found the system you guys was talking about that can only do 2 Channel playback simultaneously . Its same oem make but different model

 

 

 

rory wrote:

BTW, just a note, the video quality of most H264 DVRs is rubbish and especially with the cheap ones, not speaking about any in particular, just a general statement, so buyer beware.

 

 

I was going to go with a dual format dvr Jpeg2000 recording and H.264 for veiwing over the net but missed the one it was on ebay.

 

I know Mpeg4 is ment to be better the H.264 in some cases

Edited November 15, 2009 by Guest

[scorpion 0]

BTW, just a note, the video quality of most H264 DVRs is rubbish and especially with the cheap ones, not speaking about any in particular, just a general statement, so buyer beware.

 

This is true where DVR companies are selling (say this with extreme echo with your DJ voice) H.264!!!

 

They may be using H.264, but it is graphic intensive. Put your hand on top of a Cable Box, and feel the heat!

 

The entry level market manufactures will use low grade chipsets. This would be like driving your car on a major highway in first gear. Now add a four core radiator, oil cooler, transmission cooler, and electric secondary fans to your car, and now ask yourself how much farther down the road can it go before it overheats.

 

Now compare to a racing block, and a racing transmission.

 

AVTech is wanting to go H.264 compression, and H.264 network transmission. They are testing in the 4 channel market, and when they "get it right" they will add the 8, and 16 channel DVRs to the line up.

 

You will see AVTech releasing a firmware every other week witht the H.264 DVRs. They are serious about wanting to be the player in the entry level H.264 market. They own the chip making plants, and the manufacturing line. This gives them the low price advantage to be in the low level market. The problem is having to sell a million units to make everything come together.

 

Nowadays it seems that the DVR market is going through the growing pains that computers went through in the early years. They change every 6 months, and when you buy it, it is already obsolete!

[tomcctv 190]

Hi slim.

 

just done a check on the apollo. 4-8-12 will only play back 2 channals at a time the 16 will play 4.

also it only has 1 channel at d1 the rest cif or qcif. and the other problem slim you have is in the uk the police and courts want the system to install the player with back-up files. the apollo needs software to view back-up.

the apollo is also known as the zeus

[tomcctv 190]

Hi slim.

just got your pm. the system you call the apollo at £184 is not a true apollo machine. you say it does real time over the phone net work. you have been talking to a good salesman. here is the real price for apollo systems they are only 2 companys in the uk that sell the real hikvision apollo.

but like the other posts say your price for an 8 way (£184)-($307) to cheap BUY SOMETHING GOOD.

http://www.adata.co.uk/default.asp?txtAction=selectproductlist&txtId=DVR&txtId1=Apollo&txtId2=8+Channel

[Slim3001 0]

Hi slim.

just got your pm. the system you call the apollo at £184 is not a true apollo machine. you say it does real time over the phone net work. you have been talking to a good salesman. here is the real price for apollo systems they are only 2 companys in the uk that sell the real hikvision apollo.

but like the other posts say your price for an 8 way (£184)-($307) to cheap BUY SOMETHING GOOD.

http://www.adata.co.uk/default.asp?txtAction=selectproductlist&txtId=DVR&txtId1=Apollo&txtId2=8+Channel

 

Hay m8 thanks for the link but thats the wrong dvr the dvr im looking at is this one. http://www.adata.co.uk/default.asp?txtAction=selectproduct&txtId=4395

 

And real time viewing of the net with the software im going to keep my eyes open and have a good look around. As someone said above could get it try it and use it as a stop cap till I can find a 8 channel d1 system system in my price range