[mythtv-users] HDHomeRun(s)

todd horton thorton9 at earthlink.net
Thu Jan 14 18:40:40 UTC 2010



 On Thu, 14 Jan 2010 12:18:21 -0600, you wrote:

>On Thu, Jan 14, 2010 at 12:13 PM, Ben Kamen <bkamen at benjammin.net> wrote:
>> On 1/14/2010 12:02 PM, David Brodbeck wrote:
>>>
>>> On Thu, January 14, 2010 7:14 am, Greg Oliver wrote:
>>>>
>>>> I am just wondering how the same cable connected to a TV produced
>>>> different results when connected to the hdhomerun..  I can only assume
>>>> the TV has pretty good gain or something???
>>>
>>> Yeah, it's possible the TV's tuner is more sensitive.
>>
>> Ehhh, TV tuners are of wide quality. When it comes to your TV, they're just
>> as interested in saving $0.02.
>>
>> Of course, you could test this if you have a sig meter somehow on both
>> inputs for a given channel.
>>
>> Keep in mind, when you split the signal, you lose about 3.5dB per split.
>
>From the antenna, there is one 4x1 splitter.
>
>> So if you have -10dBmV coming in and put it through a 2 way splitter, you
>> now have -13.5dBmV coming out
>> the 2 ports.
>>
>> The 3 output splitter on my house for CATV has
>> Input ---> 3.5dB loss
>>       |-> 7dB loss
>>       \-> 7dB loss
>> And so on. So your test environment could affect your reception quality as
>> well.
>
>I live in Dallas, TX, and can pick up Houston TX channels on my TVs...
> The HDHomeRuns cannot tune them..  Thjis is current with a TV and
>HDHR off of the same "split" antenna run..

I have the same situation in Clearwater FL.  Don't write HDhomerun
about it, they blame everything but their own tuners

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