In article ,
dave wrote:

wrote:
I love it - In my area several stations that were transmitting
ibiquity digital junk have turned it off but they continue to have
spots proclaiming ³now in crystal clear HD². Thus leading consumers
to believe that they are hearing their radio station in ³crystal clear
HD² * with no hd radio upgrade needed!

Talk about confusion! Good way to promote a product * let them think
they already have it! Struble you¹re a genius.

Oh yea * hd radio is exciting! No need to buy one (if they were even
available) because you already have one!

KFI, always Johnny-on-the-spot, just fired their IBOC up. Resulting in
an annoying wubba-wubba sound whenever one of their sidebands fades a
little (which is several times a minute).

For some reason they sound especially bad on the AR7030+ now.

--
Telamon
Ventura, California

Telamon wrote:
In article ,
dave wrote:

wrote:
I love it - In my area several stations that were transmitting
ibiquity digital junk have turned it off but they continue to have
spots proclaiming ³now in crystal clear HD². Thus leading consumers
to believe that they are hearing their radio station in ³crystal clear
HD² * with no hd radio upgrade needed!

Talk about confusion! Good way to promote a product * let them think
they already have it! Struble you¹re a genius.

Oh yea * hd radio is exciting! No need to buy one (if they were even
available) because you already have one!
KFI, always Johnny-on-the-spot, just fired their IBOC up. Resulting in
an annoying wubba-wubba sound whenever one of their sidebands fades a
little (which is several times a minute).

For some reason they sound especially bad on the AR7030+ now.


Clear Channel being clueless as usual.

In article 49ea4fad.1607812@chupacabra,
Bob Dobbs wrote:

Telamon wrote:
In article ,
dave wrote:

wrote:
I love it - In my area several stations that were transmitting
ibiquity digital junk have turned it off but they continue to have
spots proclaiming ³now in crystal clear HD². Thus leading consumers
to believe that they are hearing their radio station in ³crystal clear
HD² * with no hd radio upgrade needed!

Talk about confusion! Good way to promote a product * let them think
they already have it! Struble you¹re a genius.

Oh yea * hd radio is exciting! No need to buy one (if they were even
available) because you already have one!

KFI, always Johnny-on-the-spot, just fired their IBOC up. Resulting in
an annoying wubba-wubba sound whenever one of their sidebands fades a
little (which is several times a minute).

For some reason they sound especially bad on the AR7030+ now.

They sound OK here, full HD, still takes a few moments to have the HD
icon light up and the ID to appear in place of the frequency. Once the
HD locks in it stays and the audio sounds better even during QSB.

Well, how about analog? I have some hiss in there all the time and often
times warbling rumble kind of noise. It's very annoying and I wish they
would turn that HD crap off.

--
Telamon
Ventura, California

Telamon wrote:


Well, how about analog? I have some hiss in there all the time and often
times warbling rumble kind of noise. It's very annoying and I wish they
would turn that HD crap off.


The IBOC signal is either side of the AM carrier. Each IBOC sideband is
identical but out-of-phase with the other. The theory is the IBOC
sidebands cancel each other out in your receiver. But if one sideband
propagates better than the other (which is always the case once you get
a few miles from the transmitter) the cancellation is not complete.
This is when you hear the digital hash and the wubba-wubba sound.

For those of us using a radio with selectable sideband synchronous
detection, but unable to choose USB and LSB at the same time (like my
Drake SW2) we are forced to listen in plain AM.

Clear Channel has 2 full blown flamethrowers crippled by IBOC in
California now. It's a shame. Citadel gets it. KGO and KKOH do not
use IBOC at night. KFI and KFBK do, and it really diminishes their signals.

In article ,
dave wrote:

Telamon wrote:


Well, how about analog? I have some hiss in there all the time and often
times warbling rumble kind of noise. It's very annoying and I wish they
would turn that HD crap off.


The IBOC signal is either side of the AM carrier. Each IBOC sideband is
identical but out-of-phase with the other. The theory is the IBOC
sidebands cancel each other out in your receiver. But if one sideband
propagates better than the other (which is always the case once you get
a few miles from the transmitter) the cancellation is not complete.
This is when you hear the digital hash and the wubba-wubba sound.

For those of us using a radio with selectable sideband synchronous
detection, but unable to choose USB and LSB at the same time (like my
Drake SW2) we are forced to listen in plain AM.

Clear Channel has 2 full blown flamethrowers crippled by IBOC in
California now. It's a shame. Citadel gets it. KGO and KKOH do not
use IBOC at night. KFI and KFBK do, and it really diminishes their signals.

They sound terrible in either side band selectable sync turned on with
the Drakes. There is significant low frequency noises that are not
easily describable along with the usual high frequency hiss. Kind of a
low frequency rushing sound like water through a pipe. This sucks.

Now the only radio I have they still sound halfway decent on is the
RX340 with its brick wall DSP filters. I can barely hear the low
frequency noise and the high frequency hiss is minimized in AM mode.

So here is the upshot:
The worst sound is on the Drakes with side band selectable sync turned
on. Next worse is with the AM sync on so the best is just AM mode with
no sync. Same for the AR7030+ except it does not have the selectable
side band sync. The best is the RX340 where both the low frequency noise
and the high frequency hiss is not as prominent.

I'm complaining to KFI about this.

--
Telamon
Ventura, California

In article
,
Telamon wrote:

In article ,
dave wrote:

Telamon wrote:


Well, how about analog? I have some hiss in there all the time and often
times warbling rumble kind of noise. It's very annoying and I wish they
would turn that HD crap off.


The IBOC signal is either side of the AM carrier. Each IBOC sideband is
identical but out-of-phase with the other. The theory is the IBOC
sidebands cancel each other out in your receiver. But if one sideband
propagates better than the other (which is always the case once you get
a few miles from the transmitter) the cancellation is not complete.
This is when you hear the digital hash and the wubba-wubba sound.

For those of us using a radio with selectable sideband synchronous
detection, but unable to choose USB and LSB at the same time (like my
Drake SW2) we are forced to listen in plain AM.

Clear Channel has 2 full blown flamethrowers crippled by IBOC in
California now. It's a shame. Citadel gets it. KGO and KKOH do not
use IBOC at night. KFI and KFBK do, and it really diminishes their signals.

They sound terrible in either side band selectable sync turned on with
the Drakes. There is significant low frequency noises that are not
easily describable along with the usual high frequency hiss. Kind of a
low frequency rushing sound like water through a pipe. This sucks.

Now the only radio I have they still sound halfway decent on is the
RX340 with its brick wall DSP filters. I can barely hear the low
frequency noise and the high frequency hiss is minimized in AM mode.

So here is the upshot:
The worst sound is on the Drakes with side band selectable sync turned
on. Next worse is with the AM sync on so the best is just AM mode with
no sync. Same for the AR7030+ except it does not have the selectable
side band sync. The best is the RX340 where both the low frequency noise
and the high frequency hiss is not as prominent.

I'm complaining to KFI about this.


I got a response from KFI already. Their online technical person Ernie
Kristof said he would pass my comments along to the chief engineer Terry
Grieger.

If you don't like the IBOC signal then tell the stations about it. If
they get enough complaints maybe they will turn it off.

--
Telamon
Ventura, California

On Apr 18, 7:12�pm, Bob Dobbs wrote:
Telamon wrote:

I'm complaining to KFI about this.

Their programming sucks worse than their signal.
Biggest improvement KFI could make
would be to get rid of Dr Laura and Rush.
Then bring back Tom Leykis.

--

Operator Bob
Echo Charlie 42

Dr. Laura is very abusive with callers.

In article 49ec5d5a.5454640@chupacabra,
Bob Dobbs wrote:

Telamon wrote:

I'm complaining to KFI about this.

Their programming sucks worse than their signal.
Biggest improvement KFI could make
would be to get rid of Dr Laura and Rush.
Then bring back Tom Leykis.

I can agree on Dr Laura. Rush I listen to once in a while. Usually when
I decide to listen to him there is usually a guest in his place. Just
luck I guess. Tom Leykis belongs under the biggest rock on the planet in
a very dark place.

--
Telamon
Ventura, California

In article 49eb5ac5.4793609@chupacabra,
Bob Dobbs wrote:

dave wrote:
Telamon wrote:


Well, how about analog? I have some hiss in there all the time and often
times warbling rumble kind of noise. It's very annoying and I wish they
would turn that HD crap off.


The IBOC signal is either side of the AM carrier. Each IBOC sideband is
identical but out-of-phase with the other. The theory is the IBOC
sidebands cancel each other out in your receiver. But if one sideband
propagates better than the other (which is always the case once you get
a few miles from the transmitter) the cancellation is not complete.
This is when you hear the digital hash and the wubba-wubba sound.

For those of us using a radio with selectable sideband synchronous
detection, but unable to choose USB and LSB at the same time (like my
Drake SW2) we are forced to listen in plain AM.

Sometime ago when KOGO 600 first went to band hog mode (IBOC-HD)
I tuned in to see just how bad it was and noticed that rumbling you
mentioned with the whip collapsed on the E1 for weak signal simulation,
but the DSB synch would remedy it, same with KNX.


I just tried KOGO 600, KFI 640, KNX 1070 and turning on the sync
detector didn't do anything to improve the audio. AM sounded the best.

Turning on side band selectable sync causes horrendous low frequency
noise.

By the way Australia is currently good on 17,795 as is NZ on 15,720.

--
Telamon
Ventura, California

In article 49eb67a9.8093437@chupacabra,
Bob Dobbs wrote:

Telamon wrote:

I just tried KOGO 600, KFI 640, KNX 1070 and turning on the sync
detector didn't do anything to improve the audio. AM sounded the best.

Turning on side band selectable sync causes horrendous low frequency
noise.

Have you got an E1 or something that will do DSB sync?
As berated as the E1 has been, that's a seldom mentioned plus.
I think the Grundig G3 does it too.

The Drake R8B, AR7030+, and RX340 all have DSB sync.

The Drake R8B and the RX340 have in addition side band selectable sync.

The Sony 7600G only has side band selectable sync.

Same story on all radios. Side band selectable sync generates a lot of
this hard to describe low frequency rushing noise.

Any attempt to shift the passband to get better high frequency response
just increase the high frequency hissing noise.

It's not great but so far the best thing is just AM, no sync, and
passband centered.

Now I'm going to go check the car radio. I'll drive around a bit and see
how it sounds.

By the Australia is now best on 17,715. 17,795 is not bad and NZ is
still good on 15,720.

--
Telamon
Ventura, California