* Clear QAM is unencrypted digital cable TV, and can be received by connecting directly to a cable TV wire (no cable box needed).For the kernel piece at least.Įdit: Cheap tuner I was mentioning. Follow the on screen steps to intialise host, username, etc, and when it reboots it resizes the root partition to max allowable given the size of the sd card automatically.Įlse if ya wanna install Arch Linux on an X86_64 machine, I have some PKGBUILDs We can point ya to, in order to do all the compile and install legwork for you. Manjaro Arm is hosting his image for the pi3b, pi3b+ (aarch64 though).īasically download image, send to an sd card with 'etcher' via linux or windows, plug sd card in to pi and boot it. I can hook you up with an image for say the raspberry pi, would take all the thinking out of it, plug and play.ĭarsky has this all tidied up in Manjaro Arm for the pi nowadays too. Maybe some day I will send an email to one of the developers, see if they would help to get it in there. I wouldn't mind trying, but not being a developer, would probably not meet their standards. None of these were able to show a solid picture during winter on the above mentioned channels but my tv does.Īnyone wanting to do some testing is welcome to my 950Q and Homeworx HW150 FREE, just post honest result and pay postage, the Hauppauge will probably cost $3-4, the homeworx maybe $20. None of the external tuners I've bought have come close to matching what my tv's have given, the worst being the Homeworx/Mediasonic HW 150PVR, second worst Hauppaugge 950Q,and the HDhomerun Hdhr4-2us which was close but still not equal to my tv's tuner. I'm in a unique spot, 170' AGL and am blessed to receive WGRZ at 106.8 miles and WKBW at a similar distance year round. ![]() These USB dongles and external tuners do have a LOT of nice features but I have yet to find one that matches my tv's tuner (now using a Samsung 55nu8000 with even better tuner than the Pansonic Plasma). Not to denigrate your excellent work in signal analysis, I found the Hauppauge 950q quite lacking in tuner sensitivity in comparison to my Panasonic Plasma's tuner, neither WGRZ or WUTV were viewable during the winter months and WKBW was pixellated most of the time, none of my Erie regular stations showed an image, WFXP (which is now less strong than WSEE) came through with my tv's tuner but not even a hint on the Hauppage 950Q. I only modified the kernel module for the device, and the application worked straight away. ![]() I haven't found a cable signal that was 'marginal' reception wise and probably won't.Īt any rate it's not to be confused for real test equipment which none of us will ever have at our disposal, but is not bad for a $70 USB tuner.Īll in all, I am really liking this tuner.īTW, updateDVB is the same application that I use for looking at satellite signals (as mentioned earlier in this thread), and none of the constellation plot capability required any modification to the application side. IMO for a wired cable signal that you are paying for, there shouldn't be much variation from one channel to the next. I don't normally look at CATV signals,īut I did want to test it to make sure it was able to display the 256 QAM constellation too. I see many other QAM channels in the 38 to 39 dB range. The cable signal probably wasn't the best signal available. Just reading the original driver author's comments in the code, and taking a guess as to what he/they meant at the time they wrote it. Kinda cool too, but without access to real chipset documentation or test equipment, I have no way to confirm. While reviewing the driver source code, I was also able to find clues in the source code as to when the demodulator sees multipath, so I have altered code a bit further to indicate that in a kernel debug message that ya can see in kernel logs (not passed to user land for anything). If not, it could be a sign of something unhealthy going on, possibly even resulting in some near out of spec skirts in it's output spectrum. ![]() The way I understand it, if the SNR was measured right there at the transmitter, it would likely be in the mid 30s dB tops. It is very cool to be able to rotate my antenna and see the impact on the received constellation graphically in real time.įor 8VSB, there isn't much need for every signal to be in the 30 dB SNR range where the user is. The fuzzier the constellation is, the more error correction is helping to recover any bits received in error in it's travels over the air interface. Well, its all relative.based on the SNR, I wouldn't call 20 dB for a station 70 miles away poor, especially if it is reliable and stable over time.
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