David I. Emery wrote:
This is something called DiSEqC control and is documented in
various ETSI specs available on the web (you have to register an account
with ETSI to get copies) There are several generations of this
protocol in use, all of which use superimposed 22 khz tones on the
On Tue, Dec 06, 2005 at 04:34:34PM -0800, Matt Ettus wrote:
>
> DBS small satellite dish systems often have LNB feedhorns capable of
> multiple polarizations and/or multiple bands. This is often controlled
> by changing the voltage which powers the device. However, some have a
> more complex con
Matt Ettus wrote:
DBS small satellite dish systems often have LNB feedhorns capable of
multiple polarizations and/or multiple bands. This is often controlled
by changing the voltage which powers the device. However, some have a
more complex control system involving tones in the 20kHz range if
DBS small satellite dish systems often have LNB feedhorns capable of
multiple polarizations and/or multiple bands. This is often controlled
by changing the voltage which powers the device. However, some have a
more complex control system involving tones in the 20kHz range if my
memory serves cor
