Band pass filters -- what am I missing?
 

"Albert Ross" wrote in message
...
On Sat, 27 Aug 2011 20:47:23 +0100, Bob Latham
wrote:

In article ,
J G Miller wrote:
On Saturday, August 27th, 2011 at 20:02:55h +0100, Bob Latham asked:

But what about devices that do not have a manual tune facility?

Simple solution -- do not buy them.

I have a Sony DVD/HDD recorder purchased in 2005 it doesn't have a manual
tune and I don't have a TARDIS to reverse the purchase decision. At the
time a manual tune function wasn't in the top 20 items on the check list.

I suspect this will become an essential feature as more and more
transmitters increase their power.

There are other possibilities, such as somehow automatically choosing the
strongest signal.

--

Brian Gregory. (In the UK)

To email me remove the letter vee.

Band pass filters -- what am I missing?
 

Brian Gregory [UK] wrote:

That's not really the point, which is in fact that over-powerful
transmissions waste bandwidth.

Only from the point of view of somebody trying to use lower power on the
same channel.

Frequency re-use is inherent to bandwidth economy.

Bill

Band pass filters -- what am I missing?
 

"Bill Wright" wrote in message
...
Brian Gregory [UK] wrote:

That's not really the point, which is in fact that over-powerful
transmissions waste bandwidth.

Only from the point of view of somebody trying to use lower power on the
same channel.

Frequency re-use is inherent to bandwidth economy.


If everyone is using more power it doesn't change how much the frequency can
be re-used.

--

Brian Gregory. (In the UK)

To email me remove the letter vee.

Band pass filters -- what am I missing?
 

On Wed, 31 Aug 2011 01:23:24 +0100, "Brian Gregory [UK]"
wrote:

"Albert Ross" wrote in message
.. .
On Sat, 27 Aug 2011 20:47:23 +0100, Bob Latham
wrote:

In article ,
J G Miller wrote:
On Saturday, August 27th, 2011 at 20:02:55h +0100, Bob Latham asked:

But what about devices that do not have a manual tune facility?

Simple solution -- do not buy them.

I have a Sony DVD/HDD recorder purchased in 2005 it doesn't have a manual
tune and I don't have a TARDIS to reverse the purchase decision. At the
time a manual tune function wasn't in the top 20 items on the check list.

I suspect this will become an essential feature as more and more
transmitters increase their power.

There are other possibilities, such as somehow automatically choosing the
strongest signal.

Thinking back, my old Sony analogue TV did just exactly that.