Gtcombo issues

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Mugume
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Gtcombo issues

Post by Mugume »

Miracast doesn't work on gtcombo.
Bluetooth does not connect to phones

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Feralkiwi
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Re: Gtcombo issues

Post by Feralkiwi »

Mugume wrote:
Fri Jun 24, 2022 5:59 pm
Miracast doesn't work on gtcombo.
Bluetooth does not connect to phones
I think only one bluetooth can be connected at a time, so "Unpair" the remote and try again.

Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

Mugume
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Re: Gtcombo issues

Post by Mugume »

How about miracast

jaes
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Re: Gtcombo issues

Post by jaes »

Specifically C-band scan operation using LO of 5.750
I have just gone back to using a Norsat 8000RI lnb 3.6 - 4.8GHz - LO 5.750
I have a full log of the Firmware problems associated with the Blind Scanning use of this lnb / LO
Briefly , for starters, is anybody else having issues with Blind Scan operation using an lnb with a LO of 5.750

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Feralkiwi
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Re: Gtcombo issues

Post by Feralkiwi »

jaes wrote:
Sun Jun 26, 2022 10:38 am
Specifically C-band scan operation using LO of 5.750
I have just gone back to using a Norsat 8000RI lnb 3.6 - 4.8GHz - LO 5.750
I have a full log of the Firmware problems associated with the Blind Scanning use of this lnb / LO
Briefly , for starters, is anybody else having issues with Blind Scan operation using an lnb with a LO of 5.750
Check your antenna settings for that satellite.
I have noted that the 22kHz can be set to auto as you change the LNB frequency through the 5150/5750 options.
This happens in one direction only, clicking right arrow I think, while clicking left to scroll through the LNB frequencies does not leave the "Auto" 22kHz setting.
Click on the 22kHz option and it should change.

Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

jaes
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Re: Gtcombo issues

Post by jaes »

Ok Owen thanks, iv'e tried everything else lol but i'll check that suggestion out in the morning

jaes
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Re: Gtcombo issues

Post by jaes »

Feralkiwi wrote:
Sun Jun 26, 2022 9:46 pm
jaes wrote:
Sun Jun 26, 2022 10:38 am
Specifically C-band scan operation using LO of 5.750
I have just gone back to using a Norsat 8000RI lnb 3.6 - 4.8GHz - LO 5.750
I have a full log of the Firmware problems associated with the Blind Scanning use of this lnb / LO
Briefly , for starters, is anybody else having issues with Blind Scan operation using an lnb with a LO of 5.750
Check your antenna settings for that satellite.
I have noted that the 22kHz can be set to auto as you change the LNB frequency through the 5150/5750 options.
This happens in one direction only, clicking right arrow I think, while clicking left to scroll through the LNB frequencies does not leave the "Auto" 22kHz setting.
Click on the 22kHz option and it should change.

Owen
Tried your suggestion Owen but wasn't part of the problem.
Using 40.5West Cband that contains signals in the normal Cband range as well as signals in the upper Extended 4.5 to 4.8GHz range with a Norsat 8000RI 3.6 - 4.8 GHz lnb with 5750 LO the Combo will not Blind scan correctly. To scan Hor signals you have to select LO setting 5750-5150, to scan Ver signals you have to select LO setting 5150-5750 but is only a partial success because it misses out the extended portion depending where you set the LO. Iv'e tested also on the Technomate 5402 M4 and the TM MiniOne receiver which have a similar LO menu and they also will not scan correctly Tested on the GTMedia V8x , HelloBox8 , PC card 6983 and all work correctly with the lnb LO setting of 5750. If you could please pass on the problem for me Owen, thanks.

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Feralkiwi
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Re: Gtcombo issues

Post by Feralkiwi »

As the secondary output frequencies (standard European receiver's IF tuning range of 950–2,150 MHz) of LNB of all receivers should be the same, try also LNB settings like 13000. The scanned frequencies will report incorrectly, but should still scan.


Correction: I forgot to add the 950MHz start off set.
As 5750 transfers to 950, 4.5 - 4.8GHz if frequency will be:
5750-4800=950+950=1900 and 5750-4500= 1250+950=2200.

Incorrect as I forgot the 950MHz start offset. What I note here is that 950 is the very start of the IF band.
It may be that the GT Combo is not scanning this early part of the IF band.
That may be due to it scanning before it has set the DiSEqC switching / 22kHz LNB power etc.

If that is correct then using any LNB frequency will not help as it will still miss this IF frequency at scan start.
I have seen that the GT Combo does have some issues with switching / 22kHz.
GT Media have made changes to these functions in recent software updates to improve this.

May be try scanning with a direct cable to the LNB and no settings like motor or DiSEqC switching / 22kHz.
I have seen that things like DiSEqC motor control will leave the 22kHz set to OFF for some time after a pulse move in motor control (this was improved in the last two updates) and the time out for motor moving control still trips during scanning.
It may be these things not having the LNB powered on and set correctly BEFORE the scans starts at 950MHz IF frequency.
I use a tone type finder in the LNB cable to see these things happening.

I will note this post to GT Media.

Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

jaes
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Re: Gtcombo issues

Post by jaes »

Thanks for that detailed reply Owen.
I have stopped using the Norsat 8000RI now due to the problems caused by the Combo and are now just using a standard range Cband lnb with 5150 LO.
If GTMedia get around to rectifying the problem then i'll re-fit the Norsat 8000RI .

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Feralkiwi
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Re: Gtcombo issues

Post by Feralkiwi »

jaes wrote:
Mon Jun 27, 2022 10:18 pm
Thanks for that detailed reply Owen.
I have stopped using the Norsat 8000RI now due to the problems caused by the Combo and are now just using a standard range Cband lnb with 5150 LO.
If GTMedia get around to rectifying the problem then i'll re-fit the Norsat 8000RI .
Note above I forgot to ad the 950MHz start off set.
Below are the specs for that LNB
I note that the output says a highest of 2125. That would cut off the frequencies below 4575 ??
I must have something wrong with the way I calculate the IF.

Owen

Code: Select all

https://www.norsat.com/products/variant-8000ri-c-band-single-band-dro-lnb?variant=41051543929015
Band C-Band
Input Frequency Band 1 C-Band: 3.625 - 4.80 GHz
Lo Stability +/- 500 kHz
Lo Type DRO
Noise Figure 30K
Output Frequency 1 L-Band: 950 - 2125 MHz
Product Family 8000RI Series
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

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Feralkiwi
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Re: Gtcombo issues

Post by Feralkiwi »

jaes wrote:
Mon Jun 27, 2022 6:35 am
Tried your suggestion Owen but wasn't part of the problem.
Using 40.5West Cband that contains signals in the normal Cband range as well as signals in the upper Extended 4.5 to 4.8GHz range with a Norsat 8000RI 3.6 - 4.8 GHz lnb with 5750 LO the Combo will not Blind scan correctly. To scan Hor signals you have to select LO setting 5750-5150, to scan Ver signals you have to select LO setting 5150-5750 but is only a partial success because it misses out the extended portion depending where you set the LO. Iv'e tested also on the Technomate 5402 M4 and the TM MiniOne receiver which have a similar LO menu and they also will not scan correctly Tested on the GTMedia V8x , HelloBox8 , PC card 6983 and all work correctly with the lnb LO setting of 5750. If you could please pass on the problem for me Owen, thanks.
I see here that you are using the universal 5750/5150 setting, not the plain 5750.
The universal setting uses the 22kHz on for the second option, 5150/5750 LNB will have 22kHz "ON" for the high band 5750.
Your LNB is a standard LNB and has no low band.

Try with the 5750 standard LNB setting in the antenna setting menu.

Question: Do you have any switches, splitters etc in the cable to the dish?

Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

jaes
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Re: Gtcombo issues

Post by jaes »

As part of my attempts to get the rx to Blind Scan i have removed any switches / splitters etc and gone straight from the rx up to the dish lnb Owen.
Using this lnb (8000RI) , using 40.5West as it contains signals from 3.6 upwards to 4.8GHz - if i set the LO in the menu to 5750 as per the lnb , set to Hor or Ver , 22k OFF , Diseqc OFF , LNB power ON and instruct to 'scan' it will only capture the signals in the 4.5 to 4.8GHz range and nothing from the the normal 3.6 to 4.2 range.
The only way to capture signals in the 'normal' range was to set the LO menu to either 5150-5750 OR 5750-5150.
Only LO setting '5150-5750' would scan and capture signals in the menu 'Vertical' setting, but no extended 4.5 - 4.8GHz sigs captured.
Only LO setting '5750-5150' would scan and capture signals in the menu 'Horizontal' setting, but no extended 4.5 - 4.8GHz sigs captured.

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Feralkiwi
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Re: Gtcombo issues

Post by Feralkiwi »

That sounds odd.
I will do some tests using a 9750/10600 Ku band LNB I have, but with the 5150/5750 antenna setting menu option.

Odd the horizontal and vertical thing.


Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

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Feralkiwi
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Re: Gtcombo issues

Post by Feralkiwi »

Hi

I have found out what is happening with the 5150-5750 or 5750-5150 setting.
This LNB frequency setting is for One Cable Solution LNB's.

OCS LNB's move the frequency (from 5150 to 5750) of the V signals and sends then as H.
This is done so two or more set top boxes can share the LNB via one cable as there is then no change from H to V, 18 volts to 13 Volts, that would normally clash.
The TP's on H will be normal and the TP's for V will be shifted frequencies and saved as H as well.

So if you use this setting with your standard 5750 LNB the scan will put the first part of frequencies in H and the second part in V so the TP's look correct in the TP list.
This means that the unit also does not scan all frequencies of the IF band into H or V. I think other units like my V8UHD does scan all frequencies in the setting and an auto scan on the GT Combo also will scan the full frequencies, just not on blind scan.
If you scan one of these OCS LNB's as a standard LNB setting, you will the same set of TP's into both H and V and those that should be on V will have frequencies shifted by 600MHz.

If you use the 5750 standard setting in the antenna setting menu you will have all the channels as normal.

This had me fooled for a while.
I have a OCS LNB on one of my dishes and had never used this setting.

Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

jaes
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Re: Gtcombo issues

Post by jaes »

Thanks for taking the time to look into it further Owen...
As i now have taken the non OCS Norsat 8000RI 3.6 - 4.8GHz LO 5750 lnb off the dish due to the Combo lnb menu problem , I rigged the Norsat up on the bench, set a signal source to emulate the full range Cband signals available from 40.5West to radiate over the air at one end of the bench that will output an unmodulated narrow carrier anywhere in the range 3.6 to 4.8GHz with the Norsat lnb receiving the over the air source signal at the other end of the bench coupled up to the Combo.
Long story short ....
Combo lnb menu set up as follows for Non OCS Norsat 8000RI lnb LO 5750, 3.6-4.8GHz.
BLIND SCAN ..
LNB Type - 5750
Polarization - H or V
22K - OFF
DiSEqC 1.0 - OFF
DiSEqC 1.1 - OFF
DiSEqC Repeat - OFF
DiSEqC Order - OFF
Motor Type - OFF
LNB Power - ON
Radiated signals from 4.185GHz (IF 1565MHz) in numerous frequency steps up to 4.800GHz (IF 950MHz) .... the Combo saw the signals by indicating the captured off air bench test signal in the bottom left of the Combo 'Transponder Info' from the 'Scan Progress' screen.
Off air bench test signals below 4.185/IF 1565 downwards would not be seen or screen documented, instead the Combo will give/show/indicate what seems to be a default frequency given as 4000MHz.
It seems the Combo in Blind Scan mode using a LO of 5750 is seeing IF range 950 to 1565 only and therefore missing out all available tP's below 4.185 GHz.
Any of the source signals that did seem to be detected in the Combo Blind Scan of 4.185 GHz up to 4.80GHz could not be found in any saved Transponder lists.

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Feralkiwi
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Re: Gtcombo issues

Post by Feralkiwi »

Ok

I can confirm that the GT Combo does have this issue with all the antenna setting for Standard LNB frequencies for C Band.

All settings 5150, 5750, 3620, 5950 all stop blind scan half way through the IF frequency as jaes above has tested and found.

This is I think due to the software for the 5750/5150 and 5150/5750 options only using half the band for the One Cable Solution LNB is being applied to the other standard LNB options.

Note a "Auto" scan will still scan TP's in the second half of the band, just Blind scan does not.

Test method:
Set any satellite to any standard LNB Ku band or Ka band frequency and scan.
Note the TP's scanned.
Change the setting to 5150 or 5750 and scan again.
Note now that many TP's are not scanned, those that were scanned in the higher Ku or Ka band frequencies, the second half of the IF.

GT Media Please note:
The GT Combo has a software fault on all standard C band LNB frequencies (3620, 5150, 5750, 5950) for Blind scans .
Only the first half of the frequency band is blind scanned, like would be necessary for a One Cable Solution setting of 5150/5750.


Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

jaes
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Re: Gtcombo issues

Post by jaes »

Thank you for the support and confirmation Owen
** 'Blind scanning' with a normal C-band lnb using LO 5150 , for me , is working correctly & scanning and storing channels from 3.6 to 4.2 GHz (depending what lnb range type you have).

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Feralkiwi
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Re: Gtcombo issues

Post by Feralkiwi »

HI

I also find now that if I change a LNB setting from 5150 to 3620 this happens.
Change channel from another satellite to the satellite with 3620 and the channel displayed on screen does not change and is still playing the old channel.
The list does change as does the channel name in the info or list, but I am still watching the former channel.

This is like the DiSEqC switch commands are not sent, but that the old channel is still playing is a big error too.

Does anyone know what the 3620 LNB setting is used for?

Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

jaes
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Re: Gtcombo issues

Post by jaes »

LO setting 3620 - used on S-Band devices Owen

Code: Select all

https://www.cccme.cn/products/detail-8110995.aspx

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Feralkiwi
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Re: Gtcombo issues

Post by Feralkiwi »

Tom.w has replied to my PM re this issue.

They are looking to make the scan the full IF band.
I have asked Tom.w to check with you as well.

Owen

3620?? S band?
So why does channel change not work if I set that LNB frequency option?

Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

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Tom.w
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Re: Gtcombo issues

Post by Tom.w »

Now ,using 3620 lnb type, it is also IF from 950 to 1565, and the SES-7 3620 lnb is 950 to 1100, so i think it can work well.

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Re: Gtcombo issues

Post by Tom.w »

Feralkiwi wrote:
Wed Jul 06, 2022 12:15 am
Tom.w has replied to my PM re this issue.

They are looking to make the scan the full IF band.
I have asked Tom.w to check with you as well.

Owen

3620?? S band?
So why does channel change not work if I set that LNB frequency option?

Owen
Yes.
Because according to the standard C-band satellite signal should only be half, that is from 3600 to 4200, so in order to improve the scanning speed, we only set half of the frequency band for scanning.
But at present, the standard has changed, so we will set the full IF band(from 950 to 2150) when do blind scan.

jaes
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Re: Gtcombo issues

Post by jaes »

Excellent, thank you both

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