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coma9

join:2013-02-05
United State
reply to Betamax76

Re: [IMG] Next IMG?

said by Betamax76:


The HIGHER the Signal to Noise Ratio (SNR), the BETTER the signal. QAM-256 works with SNR as low as 33; for OOB (out of band) which uses different modulation, SNR can be as low as 15 to work well.

You'll get HD channel pixelation on 33dB, no questions asked. 15dB OOB and you'll get serious pixelation on VOD and slow IMG loading times. Don't know how long you've been working with VZ, but I've been here 6 years.

said by Betamax76:


The IMG lags he is experiencing are due to limitations in the QIP 7232 hardware design. Some will be solved with the introduction of Verizon's multimedia whole house server due out later this year.

Yeah, I'm pretty sure the 7232 isn't the problem. One of the newest DVRs Verizon has to offer, and has 512MB RAM. Even our newest Cisco box has 512MB RAM and is very comparable. The 7232 is our flagship at the moment.

OP, get a VZ tech out there to look at it, it should be a free visit. It can't hurt to have them look at it. If they charge you for the visit for what ever reason, talk to billing about getting it reversed, and 90% of the time they will.
If tech doesn't fix it, or can't, they won't charge you anyways. So it's a win/win.

Betamax76

join:2008-10-16
Canonsburg, PA

1 edit
said by coma9:

said by Betamax76:


The HIGHER the Signal to Noise Ratio (SNR), the BETTER the signal. QAM-256 works with SNR as low as 33; for OOB (out of band) which uses different modulation, SNR can be as low as 15 to work well.

You'll get HD channel pixelation on 33dB, no questions asked. 15dB OOB and you'll get serious pixelation on VOD and slow IMG loading times. Don't know how long you've been working with VZ, but I've been here 6 years.

said by Betamax76:


The IMG lags he is experiencing are due to limitations in the QIP 7232 hardware design. Some will be solved with the introduction of Verizon's multimedia whole house server due out later this year.

Yeah, I'm pretty sure the 7232 isn't the problem. One of the newest DVRs Verizon has to offer, and has 512MB RAM. Even our newest Cisco box has 512MB RAM and is very comparable. The 7232 is our flagship at the moment.

OP, get a VZ tech out there to look at it, it should be a free visit. It can't hurt to have them look at it. If they charge you for the visit for what ever reason, talk to billing about getting it reversed, and 90% of the time they will.
If tech doesn't fix it, or can't, they won't charge you anyways. So it's a win/win.

Most OOB modulation is accomplished using QPSK or QAM-16. This works well with a SNR greater than 15 db because it has a high degree of forward error correction and can only send data at a relatively slow speed.

Unlike cable companies, the OOB tuner on Verizon's boxes does NOT effect VOD or IMG performance. These functions are controlled by the MOCA router at frequencies near 1 GHz. It is certainly possible that the original poster's MOCA transfer speeds are slow. He can determine his MOCA speeds using the hidden diagnostics. If he is using RG-59 cable or has damaged RG-6 cable or connectors, he certainly could have problems with only the MOCA frequencies, effecting IMG performance and VOD.

Fios uses the OOB tuner for channel authorization and the occasional firmware update. Cable companies rely on the OOB signal for program guide data, which is why it takes so long for their boxes to load guide information and boot up initially.

The QIP7232 may be the latest and greatest box currently available, but it was designed in 2010. As such, it has a single core processor. Any new boxes designed today will have at least a dual core processor. The TiVo Premiere, which became available in 2010, has a dual core processor, but when it debuted only one core was used until a software update was implemented. Dual and quad core processors lead to a much faster interface if the software is well written. Flash memory is limited to 64 MB in the QIP7232. Any dual core box will have at least twice that.

coma9

join:2013-02-05
United State
said by Betamax76:

The VIP7232 may be the latest and greatest box currently available, but it was designed in 2010. As such, it has a single core processor. Any new boxes designed today will have at least a dual core processor. The TiVo Premiere, which became available in 2010, has a dual core processor, but when it debuted only one core was used until a software update was implemented. Dual and quad core processors lead to a much faster interface if the software is well written. Flash memory is limited to 64 MB in the VIP7232. Any dual core box will have at least twice that.

Woah there, not a VIP7232, it's a QIP7232, as it's provisioned and running on the VZ FiOS network. OP, listen, you need a field tech out to investigate those signals. This guy here isn't even sure what his point is anymore, and thinks that a 7232 should by design have lag in the menus and IMG. That guide and IMG works fine on QIP7216s, and should have no problem on the QIP7232s. The guide isn't in HD on the older QIP6416s, but anything 7000+ should look and feel great. Enough said. End game.

kennye

join:2009-02-05
Carrollton, TX
I am the original poster. I have two 7232 DVRs with external 2TB drives. One drive is home grown with an AVS drive and the second is a Toshiba. Both external drives are over 80% full.

Following are the issues that lead me to believe these are IMG/software issues. The issues are repeatable:
1) When scheduling a show or series that is over one week old, the DVR reboots. This was an issue with 1.9, it went away with 1.9.1 and come back again with the recent bug fix IMG. Usually after the DVR reboots, the shows can be scheduled.
2) When you hit the record button for a show currently in progress, the recording starts from when the record button is pressed, even though the earlier part of the show is in the buffer (the line is white back to the beginning of the show)
3) I have two DVRs. Both come off the same cable from the ONT with a splitter. The DVRs are five feet from each other physically. When trying to view a recorded show on the other DVR, there is a lag (usually 30 - 60 seconds), before it starts. If you have already started viewing the show and stop and restart, it will start up again immediately). I have tried a Verizon provided and my own splitter with no change in results. The SNR is very good for both DVRs.
4) There are times when the DVRs are sluggish and will pixelate. I think this is just a normal usage issue. I always felt the technology for the DVR is under-engineered.

kennye

join:2009-02-05
Carrollton, TX
The reason I originally made this post was to find out if a new IMG was going to be delivered. Growing up in the computer age, it is always interesting to see the new releases. You never know how a new release will impact you, positive or negative.