Cable for wireless antennas

[Jamie Lovick]

Hi,

On Mon, 13 Jan 2003, Lyle Williams wrote:
>
> A lot of satellite/LMDS gear does a downconversion at the antenna,
> allowing a lower frequency signal to be passed over the coax.  From
> memory the Galaxy LMDS connifers drop the signal to about 450MHz.  
> A preamp at the dish completes the story, allowing a longish feed
> with crap coax.

RG-6U (and equivelent) can be used for Satellite which is fed out of the
LNB (Low Noise Block) converter which steps the signal down from around
4GHz for C-Band or 12GHz for Ku-Band to about 950 MHz to 1100 MHz, and
lower frequecies such as MMDS (2.3 GHz down to about 420 MHz), TV,
etc. It has an impedance of 75 ohms.

The 2.4 GHz Spread Spectrum devices have an impedance of 50 ohms.

Regards

Jamie

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