[TZ] LNBs (and other stuff) voltage

[Barry Mishkind]

He replies:

1. I have no easy way to measure current to an operating LNB. 

2. YES, the supply regulator clamped down because the LNB was drawing excessive current. I know that, because we inserted one of those satellite tuning meters in the line & the illuminated dial went out after a few minutes [and so did our reception].

3. It wasn't so much "Suddenly." it took at least 3/4 of an hour for us to get the replacement supply installed. Plenty of time for the LNB to cool off.

4. I don't think they are made in China. But who knows?

John S.

At 01:03 PM 6/11/2011, Ron Youvan wrote:
>Barry Mishkind wrote:
>
>> A friend had an LNB fail.  He was feeding it 24V, just as the specs said 11 to 24 VDC.
>
>> Interestingly, he tried 18V and the LNB suddenly worked just fine.
>
>> Comments?
>
>   Made in China?
>
>   It is possible the innards is drawing too much current for the Voltage regulator with 24 Volts 
>coming in and 18 Volts reduced the power being dissipated in the pass device of the regulator and it 
>is no longer getting too hot.  (try it at 12 Volts)
>
>-- 
>Ron KA4INM
>

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Barry Mishkind - Tucson, AZ