My thoughts exactly, as noted in my most recent post.
Tom Behler: KB8TYJ
-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Steve Dresser
Sent: Monday, August 26, 2013 10:39 AM
To: [log in to unmask]
Subject: Re: Speaking of Digital:
Tom,
It would probably be even worse at night with all the low-power AM stations
underneath the one you're trying to listen to.
Steve
----- Original Message -----
From: "Tom Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, August 25, 2013 15:15
Subject: Re: Speaking of Digital:
> Well, maybe my experience is unique, but my recent observations about
> WBBM
> A M were made during the day-time, which really illustrated the problem
> for
> me, more than I expected.
>
> Tom Behler: KB8TYJ
>
> ----- Original Message -----
> From: "Bob, K8LR" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Sunday, August 25, 2013 3:10 PM
> Subject: Re: Speaking of Digital:
>
>
>> Hi,
>>
>> I have an HD radio here and it works well on A M and FM provided there is
>> a
>> good signal and very little background noise. The A M digital sounds
>> like
>> FM when it is working but it puts a 5 second delay in to the broadcast.
>> The
>> same thing is true on FM, but you have to be in a good listening room or
>> wear headphones to really appreciate the difference in the digital FM
>> sound
>> as the digital sound over fm sounds more like the sound from a cd player.
>> Most broadcast stations now delay both the normal broadcast to match the
>> digital delay so that when a radio jumps back and forth, the switch over
>> is
>> not so disorienting.
>>
>> I've never used an HD auto radio, but Ifigured that multipath and fading
>> would cause problems.
>>
>> Bob, K8LR, [log in to unmask]
>>
>> ----- Original Message -----
>> From: "Tom Behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Sunday, August 25, 2013 2:51 PM
>> Subject: Speaking of Digital:
>>
>>
>> Hi, everyone.
>>
>> The ongoing discussion regarding D Star, and audio quality reminded me of
>> something I recently experienced, and meant to bring up to the list.
>>
>> As many of you may recall, the XYL and I recently purchased a new vehicle
>> that has an HD radio in it.
>>
>> Well, thanks to the help of some on the list regarding how best to
>> understand and use the new HD capabilities while traveling, I believe I
>> have
>> mastered the main functions of the radio pretty thoroughly now.
>>
>> However, I have to say that digital A M leaves a tremendous amount to be
>> desired, in my opinion.
>>
>> For example, while traveling through the Chicago metro area from Michigan
>> on
>> our way to and from the St. Louis area several weeks ago, I tried
>> listening
>> to WBBM AM 780 with the new digital radio, and the experience was
>> actually
>> quite anoying. I'd say that as we got 30 miles or so on either side of
>> Chicago, the digital AM signal kept switching on and off, to be replaced
>> by
>> a much degraded analog signal. Perhaps there is a way to turn the
>> digital
>> AM reception mode off in this particular radio, but I have not found it
>> yet.
>>
>> We are going to be traveling through quite a few metropolitan areas on
>> our
>> upcoming family visitation trip, so I'll have time to play with it a bit
>> more, but I really am wondering now about the usefulness of digital AM
>> radio.
>>
>> Tom Behler: KB8TYJ
>>
>
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