PDA

View Full Version : VU+ SE V1,V2 Higher symbol Rate Transponders Problem


mianabid
15-03-16, 05:31
I remember the time when i first time bought vu+ UNO and it was not scanning higher symbol rate channels on Asiasat 100.5 and VU+ provided upgrade to resolve the issue

I am facing the same problem in my new VU+ SE V1 V2 DOU2 ZERO receivers which is not tuning following TP,s which has 44995 symbol rate while the TP which has 30000 SR has no issue



Team please provide solution ,Very annoyed that same issue is not tested before launching the product in market

Satellite ST2 88 East Videocon Package

11164V449952/3DVB-S28PSK
11164H449952/3DVB-S28PSK
11483V449952/3DVB-S28PSK
11483H449953/4DVB-S28PSK
11546V449953/4DVB-S28PSK
11546H449953/4DVB-S28PSK
11609V439782/3DVB-S28PSK
11609H449952/3DVB-S28PSK
11672V449952/3DVB-S28PSK
11672H449953/4DVB-S28PSK

11050 V 30000 is Ok


P.S. I have tried all images including VU+ original



https://www.youtube.com/watch?v=Cq0kSZsETOI
Sicilian
15-03-16, 07:30
It's not down to the vix to provide a solution for this, report it to vu+!


Sent from my iPhone using Tapatalk
mianabid
15-03-16, 08:58
It's not down to the vix to provide a solution for this, report it to vu+!


Sent from my iPhone using Tapatalk

ok thanks already reported
twol
15-03-16, 09:04
I seem to remember when Xtrend had a similar issue, it was a chip replacement :)
mianabid
15-03-16, 16:12
I seem to remember when Xtrend had a similar issue, it was a chip replacement :)


xtrend which model ??? which satellite
twol
15-03-16, 16:19
xtrend which model ??? which satellite

I am talking a long time ago on the ET9200
mianabid
17-03-16, 11:03
do you think its processor or hardware fault or drivers fault
twol
17-03-16, 11:08
do you think its processor or hardware fault or drivers fault

Well on the Xtrend if I remember correctly, they had to change a component so it could access the higher symbol rates.
Sicilian
17-03-16, 11:57
do you think its processor or hardware fault or drivers fault

Driver issue.
Sicilian
17-03-16, 11:57
Well on the Xtrend if I remember correctly, they had to change a component so it could access the higher symbol rates.

ET9000, Tuner B issue.
mianabid
19-03-16, 02:47
Friends from Europe who can not get this satellite can test on ABS-2 75 East Russia Beam Transponder 12093 V DVB-S2/8PSK
MPEG-4 45000 2/3 MTS TV package same problem signal being locked but channels not being stored
mianabid
06-04-16, 05:59
no reply from vu+

looks like these receivers comes with faulty hardware not software issue
mianabid
11-04-16, 13:53
VU+ team is in mute mode

I guess they gave it up

Even chines clone boxes fixed the problem

VU+ has poor technical team or hardware
Huevos
11-04-16, 18:05
Friends from Europe who can not get this satellite can test on ABS-2 75 East Russia Beam Transponder 12093 V DVB-S2/8PSK
MPEG-4 45000 2/3 MTS TV package same problem signal being locked but channels not being storedMy guess is dodgy LNB or not enough dish. Those tuners don't have any problem with 44100 SR on 27W.
mianabid
13-04-16, 08:36
My guess is dodgy LNB or not enough dish. Those tuners don't have any problem with 44100 SR on 27W.

Its the problem with everyone not only with me

and not everyone have faulty LNB or set up :)

Its hardware or software issue
mianabid
29-01-17, 15:11
Vu+ is such a pathetic company that I'm sending them emails since last one year but no solution from them, not going to buy or sell their any product in future

Sent from my Redmi Note 3 using Tapatalk
Andy_Hazza
29-01-17, 17:54
Vu+ is such a pathetic company that I'm sending them emails since last one year but no solution from them, not going to buy or sell their any product in future

Sent from my Redmi Note 3 using Tapatalk

You are on a roll today DM fanboy........ [emoji87]


Sent from my iPhone using Tapatalk
amila4341
13-06-17, 10:13
Issue is still not rectified. Some transponder with 44995 symbol rate is tuned but some don't. (8psk)

Data sheet of AVL 6211 confirm it supports symbol rates up to 45000




Description
DVB-S2/DVB-S Channel Receiver Data Sheet
The AVL6211 is an enhanced version of the AVL2108 device. The AVL6211 is a highly integrated DVB-S2 and DVB-S channel receiver IC. It converts a baseband analog IQ signal from a satellite tuner and performs
Applications
• Digital satellite receiver for standard and high definition TV
• High speed satellite data receiver
Features
Confidential for Honestar a set of sophisticated demodulating and
decoding operations to output an MPEG video/audio stream. The AVL6211 provides simple and flexible control via a standard two-wire bus. A simplified block diagram of the device is shown in Figure 1-1.
The AVL6211 includes dual, differential, high performance, analog to digital converters (ADC) with a built-in compensation circuit for DC offset and IQ imbalance. An RF AGC output is provided for simple gain control of the satellite tuner via an RC network.
After passing a timing recovery loop and frequency recovery loop, the signal samples are further processed by an equalizer to output decision bits to an FEC decoder. The decoded bits are finally packetized in the MPEG interface block.
The configuration of the AVL6211 is easily performed through a set of registers via a standard two-wire bus. To simplify the interface to the host system, this same two- wire bus is used to communicate with the separate tuner two-wire bus and the DiSEqC™ interface to the LNB.
The AVL6211 can achieve fast acquisition at frequency offsets up to 5 MHz and maintains synchronization under the most severe front- end phase noise.
**Refer to Table 7-1
• High performance QPSK/8PSK satellite TV receiver
• 64 pin LQFP in 7x7 mm package
• Low 250 - 270 mW power (clear sky)**
• Low 330 - 460 mW power (threshold)**
• DVB-S2:
• Data Rate: QPSK 1-55 Msps
• Data Rate: 8PSK 1-45 Msps
• Code Rates: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9 and 9/10
• Roll-off factors for pulse shaping: 0.2, 0.25 and 0.35
• DVB-S:
• Data Rate: 1-55 Msps
• Code Rates: 1/2, 2/3, 3/4, 5/6, 7/8
• Directly interfaces with tuner for easy implementation
• Integrated dual A/D converters
• Fast automatic blind scan of symbol rates and carrier frequencies
• Carrier frequency acquisition range: ±5MHz for symbol rates above 3 Msps and ±3MHz for the remaining symbol rates
• Signal quality and BER/PER monitors
• Equalizer compensates for channel impairment
• Standard two-wire serial bus with two selectable addresses for easy chip configuration
• Multi-purpose modulator for DiSEqC™ applications
• Standard MPEG-2 transport output parallel and serial interfaces
• Software controlled tri-state MPEG and RFAGC outputs
• Software controlled LNB interface (GPIOs)
Huevos
14-06-17, 18:12
Issue is still not rectified. Some transponder with 44995 symbol rate is tuned but some don't. (8psk)

Data sheet of AVL 6211 confirm it supports symbol rates up to 45000And your point is what? Do you think it should work perfect up to 44999 and then stop working at 45000?
amila4341
15-06-17, 05:18
And your point is what? Do you think it should work perfect up to 44999 and then stop working at 45000?

Some transponders of St 2 88e is working .for example 11483v 44995 dvb-s2 8psk .so it should be able to handle those high symbol rates.but not tuned 11483H 44995.
I'm not sure about it stops working immediately at 45000.