Trip

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KJ4IEA

Comments are my own and not that of my employer or anyone else.

Jay

Nice Trip, can't wait. Wonder if that phone in the link is actually receiving ATSC-M/H.

EscapeVelocity

Hey Trip, what do I need to do to check out my local stations bit rates and stuff? Besides check your site....I mean do it myself here. I can provide you with updated info, if I do it, as well.

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Trip

You need a USB or PCI computer tuner that is running 32-bit Windows, and some free analysis software. If you have the former, I can direct you to the latter. Technically, you can check bitrates in Linux as well, but unfortunately it won't provide the complete output I need for the website.

And yes, I'd be quite pleased to have a permanent contact in the Charleston area. The last data I received was from someone who went down from the DC area for a wedding and got me data while he was there.

- Trip

__________________
KJ4IEA

Comments are my own and not that of my employer or anyone else.

EscapeVelocity

Id like to pick up a usb tuner, ATSC and QAM, any recommendations for a top notch USB tuner?

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O-O

Trip, are you going to be doing any of the testing yourself or is the data coming from another source?

Trip

Right now, I'm telling people to either go for the cheap tuners I got for my loaner program or to wait. There's no really good USB receivers out right now because all the latest and best chips were diverted into converter boxes.

If you must buy, it varies with your reception conditions. I find the DViCO Fusion 5 (with the LG 5th generation chip) to be superior with weak signals, while newer tuners like the Fusion 7 do poorer with weak signals but handle multipath better.

Newer chips do better with both. I really hope something comes out with the latest LG chip at some point. I bought my DViCO for $160 when it came out, and I would spend that much again to get a similar tuner with the latest LG chip.

- Trip

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KJ4IEA

Comments are my own and not that of my employer or anyone else.

Trip

I don't have a Mobile DTV receiver yet. I was given the option of buying a USB one, but without any stations currently running it in my area, I could not justify the $100+ cost of the device. Maybe in a few months when WDBJ adds it, I will consider it again.

I think the post you were responding to was misleading, I meant a standard ATSC (non M/H) tuner is going to Omaha. I can find out how much bandwidth the Mobile DTV's sucking down, but that's about it.

- Trip

__________________
KJ4IEA

Comments are my own and not that of my employer or anyone else.

Aaron62

It'll still be pretty interesting to see if mobile dtv signals vary from different areas. It's supposed to be a set amount of bandwidth for each station right? Or can they actually allow for more?

Trip

The bitrates on the Mobile DTV stuff are static, but are in multiples of 0.917 Mbps. The spec allows up to 8 of those groups.

RabbitEars.Info

The "NoG" column is how many of those groups a station has. So a station with 4 NoG is using 4 times 0.917 Mbps of bandwidth.

- Trip

__________________
KJ4IEA

Comments are my own and not that of my employer or anyone else.