Purchased the MicroHD to replace a Pansat9500HDX thinking that the MicroHD had a more sensitive tuner for mpeg4 signals with higher SR's. What I discovered when I changed receivers is that can not receive Weathernation HD on the MicroHD off SES-2. Pansat works fine. Am working with a 6ft dish and a BSC621 LNBF.
GEOSATpro Signal Level Sensitivity
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WeatherNation HD and the other channels in the mux log and display with no issues. No noticeable reception difference on this transponder comparing the microHD to a 9500 on our test bench using a 7.5 Sami with C2 LNBF.
Are there any system issues that might be causing this? Coax type, length, scalar and/or LNBF placement? Can you swap between the receivers to compare or using loop through or a splitter? Happening on any other satellite or transponder?
Notice that the dish needs to be optimized for this transponder as it is lower signal CNR than others on the satellite. Signal seems lower last few days.
Are there any system issues that might be causing this? Coax type, length, scalar and/or LNBF placement? Can you swap between the receivers to compare or using loop through or a splitter? Happening on any other satellite or transponder?
Notice that the dish needs to be optimized for this transponder as it is lower signal CNR than others on the satellite. Signal seems lower last few days.
Are there any system issues that might be causing this? Coax type, length, scalar and/or LNBF placement? Can you swap between the receivers to compare or using loop through or a splitter? Happening on any other satellite or transponder?
They are side by side. Just swap coax from Pansat to MicroHD. Nothing else is changed. When i first hooked up the MicroHD thought the LNBF had to be readjusted because lost Weathenation. Not the case. LNBF was/is peaked on SES-2 Freq=4043H SR 3910 with a solid lock. WeatherNation was/is coming in fine on Pansat and when swapped in with MicroHD watchable signal is lost.
They are side by side. Just swap coax from Pansat to MicroHD. Nothing else is changed. When i first hooked up the MicroHD thought the LNBF had to be readjusted because lost Weathenation. Not the case. LNBF was/is peaked on SES-2 Freq=4043H SR 3910 with a solid lock. WeatherNation was/is coming in fine on Pansat and when swapped in with MicroHD watchable signal is lost.
Tuner Sensitivity
Hey MicroHD team. With all things being equal, why would a MicroHd (latest firmware installed) not be able to pick up a satellite signal that a Pansat 9500 can. Like i mentioned, all connections, cable, LNB and 6ft dish are the same for both.
They are side by side connected to TV. Is there a chance this is defective tuner in some way?
Hey MicroHD team. With all things being equal, why would a MicroHd (latest firmware installed) not be able to pick up a satellite signal that a Pansat 9500 can. Like i mentioned, all connections, cable, LNB and 6ft dish are the same for both.
They are side by side connected to TV. Is there a chance this is defective tuner in some way?
That's off by one 4044 H SR3910. (I wonder if the bsc is drifting?) How long has Weather Nation been scanned in your Pansat?
Did you try to manually add 3737 V 14400 to the microHD?
The reason I asked about the version number installed is that the threshold has been improved and tuner sensitivity has been increased since the original factory firmware.
Just tested three bench unit microHD units with both firmware versions 0.13 and beta 0.14. Found that the tuner sensitivity was approximately .7db SNR improvement with the microHD over the 9500 test unit running current firmware on our closed system. This test was on a MPEG4, 8psk modulation, SR 15000, 3/5 FEC.
1. Firmware could make a difference, but you are running current.
2. Wallyhts has a point that the LO may be drifting on the LNB. Were both units manual frequency entry or Blind Scanned?
3. Manufacturing variance could be a factor, but our factory tests against our required benchmarks (mistakes can be made).
If you are not locking on the Weather Nation mux and the other TP is marginal, I am very curious as to the reason as 3737V14400 mux has a 7dB+ C/N with a 7.5m dish and C2 LNBF. Something is seriously wrong if this transponder does not lock. I realize that according to the SES2 footprint that you are in a weaker region, but probably only by 3 dB. What size dish are you using?
Check with your reseller if you have updated the firmware and need a testing RMA performed. We would be happy to put it on our test bench and run tuner sensitivity and other benchmark testing. The unit would be replaced if defective or refunded if it does not meet up to your standards. We offer a 30 day refund on product cost as long as the unit is returned in like new condition with all accessories and packaging. If you purchased through a reseller, we would be happy to work with them to test, replace or refund.
Just tested three bench unit microHD units with both firmware versions 0.13 and beta 0.14. Found that the tuner sensitivity was approximately .7db SNR improvement with the microHD over the 9500 test unit running current firmware on our closed system. This test was on a MPEG4, 8psk modulation, SR 15000, 3/5 FEC.
1. Firmware could make a difference, but you are running current.
2. Wallyhts has a point that the LO may be drifting on the LNB. Were both units manual frequency entry or Blind Scanned?
3. Manufacturing variance could be a factor, but our factory tests against our required benchmarks (mistakes can be made).
If you are not locking on the Weather Nation mux and the other TP is marginal, I am very curious as to the reason as 3737V14400 mux has a 7dB+ C/N with a 7.5m dish and C2 LNBF. Something is seriously wrong if this transponder does not lock. I realize that according to the SES2 footprint that you are in a weaker region, but probably only by 3 dB. What size dish are you using?
Check with your reseller if you have updated the firmware and need a testing RMA performed. We would be happy to put it on our test bench and run tuner sensitivity and other benchmark testing. The unit would be replaced if defective or refunded if it does not meet up to your standards. We offer a 30 day refund on product cost as long as the unit is returned in like new condition with all accessories and packaging. If you purchased through a reseller, we would be happy to work with them to test, replace or refund.
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You aren't swapping the coax cable back and forth while either receiver is powered up, are you?
If you have a DisEqc switch in the mix, those can cause some real odd issues even IF they aren't blown out completely swapping a powered up coax line.
22k switches are even worse when it comes to this. I defy anybody to swap cables on a powered 22k without blowing it out.
I'd also make sure your system was tweaked properly using the MicroHD itself. Perhaps it just needs a tiny bit of maintenance, and somehow the MicroHD is just being a little more critical of the signal coming in.
If you have a DisEqc switch in the mix, those can cause some real odd issues even IF they aren't blown out completely swapping a powered up coax line.
22k switches are even worse when it comes to this. I defy anybody to swap cables on a powered 22k without blowing it out.
I'd also make sure your system was tweaked properly using the MicroHD itself. Perhaps it just needs a tiny bit of maintenance, and somehow the MicroHD is just being a little more critical of the signal coming in.
All current testing and owner reports repeatedly confirms that the microHD sensitivity is kicking all other consumer receiver's butts....
The Airoha tuner is like no other!We will help you figure this out.
Thanks for your feedback so far!
I am a Senior Principle Tech for a medical device company here in Mn and ALWAYS turn off power when swapping cables. Also, know how to operate the 22kHz to switch between Ku and c-band.
I'd also make sure your system was tweaked properly using the MicroHD itself. Perhaps it just needs a tiny bit of maintenance, and somehow the MicroHD is just being a little more critical of the signal coming in. This makes no sense to me. If the tuner is so outstanding why does the MicroHD system need greater tweaking than the Pansat.
I'd also make sure your system was tweaked properly using the MicroHD itself. Perhaps it just needs a tiny bit of maintenance, and somehow the MicroHD is just being a little more critical of the signal coming in. This makes no sense to me. If the tuner is so outstanding why does the MicroHD system need greater tweaking than the Pansat.
All current testing and owner reports repeatedly confirms that the microHD sensitivity is kicking all other consumer receiver's butts....
We will help you figure this out.
Thanks for your feedback so far!
Thanks guys - that is why I bought the MicroHD to replace the Pansat. Wonder if I could mail my receiver to you guys to check out? There is for some reason a difference and not in a way we would like.
Please process the RMA through your reseller as was outlined in post # 11. If purchased directly from us, you may contact our support team for a RMA.
Either way, we are committed to resolving this situation.
BTW...
What is inline between the receivers and LNBF? Switches, splitters, etc.
Have you bypassed a run directly to the LNBFs to verify no auxiliary equipment incompatibilities?
I am no fan of the combined C/KU LNBFs and have heard way to many performance issues when they are used on an undersized dish. Are you using the built-in switch or an external switch? If internal, try an external switch or bypass completely. I recall some earlier posts reporting some anomalies with certain brands of the C/KU LNBFs with internal switches.
On a side note not related to the tuner sensitivity, the 6 ft dish and add to that the performance loss of the C/KU LNBF is not a good combination. With this undersized dish you should instead use a C-band only LNBF. Is the dish a prime focus or offset design? If offset, are you using a comical scalar or the flat scalar?
The reason that I am curious about the dish is due to adjacent satellite interference. A more sensitive tuner could be more influenced by signals that are below threshold on the other receiver. The 6 foot dish is not 2 degree compliant and you will be receiving strong side lobes with possible interference from nearby satellites. The 6 foot dish is severely undersized for the EIRP of this satellite along with the additional margins required for S2 and 8psk and future 16psk signals. Regardless of your receiver choice, you really need a larger dish and optimized Feedhorn/LNB or LNBF to reliably receive weaker footprints and more critical transmission types.
Either way, we are committed to resolving this situation.
BTW...
What is inline between the receivers and LNBF? Switches, splitters, etc.
Have you bypassed a run directly to the LNBFs to verify no auxiliary equipment incompatibilities?
I am no fan of the combined C/KU LNBFs and have heard way to many performance issues when they are used on an undersized dish. Are you using the built-in switch or an external switch? If internal, try an external switch or bypass completely. I recall some earlier posts reporting some anomalies with certain brands of the C/KU LNBFs with internal switches.
On a side note not related to the tuner sensitivity, the 6 ft dish and add to that the performance loss of the C/KU LNBF is not a good combination. With this undersized dish you should instead use a C-band only LNBF. Is the dish a prime focus or offset design? If offset, are you using a comical scalar or the flat scalar?
The reason that I am curious about the dish is due to adjacent satellite interference. A more sensitive tuner could be more influenced by signals that are below threshold on the other receiver. The 6 foot dish is not 2 degree compliant and you will be receiving strong side lobes with possible interference from nearby satellites. The 6 foot dish is severely undersized for the EIRP of this satellite along with the additional margins required for S2 and 8psk and future 16psk signals. Regardless of your receiver choice, you really need a larger dish and optimized Feedhorn/LNB or LNBF to reliably receive weaker footprints and more critical transmission types.
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