David Eduardo wrote:

"Telamon" wrote in message
...
In article ,
"David Eduardo" wrote:

"RHF" wrote in message
ups.com...
On Oct 7, 6:09 pm, "David Eduardo" wrote:
"David" wrote in message

...

Are they being nice or is their phasor obsolete?

Phasors can not be obsolete. They can be badly designed, hi-Q and
narrowband, but there is no real change in components (coils and caps
and
vacuum caps) or design since the first directionals on AM were used at
WSUN
and WOR in the 20's.

The big thing for an Analog AM/MW Radio Station that
is going to begin IBOC {Integrated} Analog and Digital
Broadcasting : Is will their Single Tower Non-Directional
Antenna handle the 30 kHz Bandwidth required of IBOC ?

Most single towers are flat enough and don't have a disparate enough
reactive component to do HD easily. The problem is with directional
systems
that were designed for easy tuning and have a high Q. These have to be
broadbanded... most larger stations already did that to make analog
audio
sound better.

You seem to have an incorrect understanding. Not surprising.

Please set us straight...

Edweenie, you've not a clue about being straight.

"Telamon" wrote in message
news:telamon_spamshield-

Guess where you went wrong. Give it a shot.

Most single tower AMs have more broadband ATUs than directionals. It is a
lot easier to tune a directional system with high-Q circuits in the phasor,
so throught the 60's, most directional systems had such narrow band, high-Q
circuits.

On Oct 8, 12:23 am, "David Eduardo" wrote:
"Telamon" wrote in message

news:telamon_spamshield-

Guess where you went wrong. Give it a shot.

Most single tower AMs have more broadband ATUs than directionals. It is a
lot easier to tune a directional system with high-Q circuits in the phasor,
so throught the 60's, most directional systems had such narrow band, high-Q
circuits.

Stuff a sock in it, Tardo. We're not talking about Star Trek.

On Sun, 7 Oct 2007 18:09:12 -0700, "David Eduardo"
wrote:


"David" wrote in message
.. .
Are they being nice or is their phasor obsolete?

Phasors can not be obsolete. They can be badly designed, hi-Q and
narrowband, but there is no real change in components (coils and caps and
vacuum caps) or design since the first directionals on AM were used at WSUN
and WOR in the 20's.


If the Q is too high for an evolved transmission scheme, and cannot be
"adjusted" to a more broadband spec, the phasor is obsolete.

On Sun, 7 Oct 2007 20:13:15 -0700, "David Eduardo"
wrote:


"RHF" wrote in message
oups.com...
On Oct 7, 6:09 pm, "David Eduardo" wrote:
"David" wrote in message

...

Are they being nice or is their phasor obsolete?

Phasors can not be obsolete. They can be badly designed, hi-Q and
narrowband, but there is no real change in components (coils and caps and
vacuum caps) or design since the first directionals on AM were used at
WSUN
and WOR in the 20's.

The big thing for an Analog AM/MW Radio Station that
is going to begin IBOC {Integrated} Analog and Digital
Broadcasting : Is will their Single Tower Non-Directional
Antenna handle the 30 kHz Bandwidth required of IBOC ?

Most single towers are flat enough and don't have a disparate enough
reactive component to do HD easily. The problem is with directional systems
that were designed for easy tuning and have a high Q. These have to be
broadbanded... most larger stations already did that to make analog audio
sound better.

Until the mask...

On Oct 8, 6:25 am, David wrote:
On Sun, 7 Oct 2007 18:09:12 -0700, "David Eduardo"

wrote:

"David" wrote in message
.. .
Are they being nice or is their phasor obsolete?

Phasors can not be obsolete. They can be badly designed, hi-Q and
narrowband, but there is no real change in components (coils and caps and
vacuum caps) or design since the first directionals on AM were used at WSUN
and WOR in the 20's.

- If the Q is too high for an evolved transmission scheme, and cannot
- be "adjusted" to a more broadband spec, the phasor is obsolete.

Set Phasors on Stun !

Beam Me Up Scotty ! - The Planet of d'Eduardo
is Infested with Hispanic Radio Program Directors.

jftfoi ~ RHF

"David" wrote in message
news
On Sun, 7 Oct 2007 18:09:12 -0700, "David Eduardo"
wrote:


"David" wrote in message
. ..
Are they being nice or is their phasor obsolete?

Phasors can not be obsolete. They can be badly designed, hi-Q and
narrowband, but there is no real change in components (coils and caps and
vacuum caps) or design since the first directionals on AM were used at
WSUN
and WOR in the 20's.


If the Q is too high for an evolved transmission scheme, and cannot be
"adjusted" to a more broadband spec, the phasor is obsolete.

No, that is not obsolescence. That is just a design criteria. Any phasor can
be broadbanded.

On Oct 8, 12:57 pm, "David Eduardo" wrote:
"David" wrote in message

news




On Sun, 7 Oct 2007 18:09:12 -0700, "David Eduardo"
wrote:

"David" wrote in message
. ..
Are they being nice or is their phasor obsolete?

Phasors can not be obsolete. They can be badly designed, hi-Q and
narrowband, but there is no real change in components (coils and caps and
vacuum caps) or design since the first directionals on AM were used at
WSUN
and WOR in the 20's.

If the Q is too high for an evolved transmission scheme, and cannot be
"adjusted" to a more broadband spec, the phasor is obsolete.

No, that is not obsolescence. That is just a design criteria. Any phasor can
be broadbanded.- Hide quoted text -

- Show quoted text -

Only Captain Kirk's is broadbanded, Tardo.

In article ,
"David Eduardo" wrote:

"Telamon" wrote in message
news:telamon_spamshield-

Guess where you went wrong. Give it a shot.

Most single tower AMs have more broadband ATUs than directionals. It is a
lot easier to tune a directional system with high-Q circuits in the phasor,
so throught the 60's, most directional systems had such narrow band, high-Q
circuits.

You don't think there might be a problem with tower itself?

--
Telamon
Ventura, California

In article ,
"David Eduardo" wrote:

"Telamon" wrote in message
...
In article ,
"David Eduardo" wrote:

"Telamon" wrote in message
news:telamon_spamshield-

Guess where you went wrong. Give it a shot.

Most single tower AMs have more broadband ATUs than directionals. It is a
lot easier to tune a directional system with high-Q circuits in the
phasor,
so throught the 60's, most directional systems had such narrow band,
high-Q
circuits.

You don't think there might be a problem with tower itself?

What kind of problem do you have in mind? The FCC, for the most part
requires 1/4 wave for all but class A stations, that are supposed to be 1/2
wave. There are exceptions, granted due to the lack of enough land or FAA
regulations and zoning issues.

I would say bandwidth. Large aspect ratio antenna elements have a narrow
band of resonance. It seems to me that there are some companies out
there that have tower kits that run 3 to 4 wires on spreaders so the
electrical diameter of the tower is increased. This will allow the tower
to have lower VSWR over the +/-15KHz required.

Next up I would look at the transmission line to tower coupling. Many AM
broadcast towers are series coupled with the tower isolated from ground.
The tower would tune a little more broadly if it was grounded and shunt
coupled. I believe this is the preferred method in central and south
America.

--
Telamon
Ventura, California