[BC] IP STL

[Robert Meuser]

HD 2 is here. You need a 300 kbps link to the TX. Encoding is done at the studio.

R

Mike McCarthy wrote:
> With HD2 et al coming,  One T-1 will not be enough unless we can 
> pre-code the whole thing at the studio and ship it out as one 
> pre-packaged data stream.
> 
> I'm looking to find a loophole in Part 90 and Part 101 which will allow 
> licensable multi-T-1 microwave links to operate as the final 
> hop....which there are specific rules prohibiting such for program 
> audio. We have 18 Ghz in Part 74...  But for more than a few miles, 
> weather fade plays a GREAT role in it's reliability.  Snow, rain, and 
> fog will kill a longer link.
> 
> Stay tuned...
> 
> As for the reliability, T-1's will vary by both the distance of the 
> circuit AND the distance on each end to the CO.  Once we fixed the cable 
> at the studio (where we had weekly faults of some sort across all of our 
> T-1's), all but a couple fault events have been at the transmitter end.  
> Of course, all have some distance to the serving CO.
> 
> I agree with Robert that you need diversity and a non-Bell means to 
> convey program audio to the TX for the reasons he cites, plus back-hoe 
> fade, mice, tractors hitting pedestals, accidents, etc. On our more 
> important sites, non-landline means are increasingly important.
> 
> MM
> 
> At 09:33 PM 2/18/2006 -0500, Robert Meuser wrote
> 
>> I got the impression this was on the REALLY cheap.
>>
>> Me I would use a point to point T1 AND a digital STL AND spread 
>> spectrum backup.  But that DOES cost more.
>>
>> R
>>
>> Chris Gebhardt wrote:
>>
>>> Robert Meuser wrote:
>>>
>>>> I have had good experiences with the audio TX communicator. $700 per 
>>>> end for software that will run on a pretty modest computer, like a 
>>>> 600 mhz pentium. I has the ability to operate with linear as well as 
>>>> mpeg audio. The software adjusts its buffering automatically based 
>>>> on network condition and can also function via ISDN.
>>>>
>>>> We even ran it off a laptop in the middle of Manhattan via plain 
>>>> vanella WIFI and it worked quite well.
>>>>
>>>> If you could get DSL lines with enough uplink speed, you could run 
>>>> linear audio and the network traffic would not likely be an issue if 
>>>> both DSL were from the same telco provider.
>>>
>>>
>>> DSL might work out well, but for a critical application like STL, I 
>>> would suggest T1 due to its more bullet-proof nature, wide 
>>> availablity, guaranteed transfer rates and superior SLA to protect you.
>>> Since we (as well as other providers) are able to sell T1 for under 
>>> $300/month depending on location, it's really not that expensive a 
>>> venture.  Esp. not for the benefits.
>>> Chris Gebhardt
>>> VIRTBIZ Internet Services
>>> chris at virtbiz.com | (866) 4-VIRTBIZ
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>>
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> 
> 
> 
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