• Get involved.
    We want your input!
    Apply for Membership and join the conversations about everything related to broadcasting.

    After we receive your registration, a moderator will review it. After your registration is approved, you will be permitted to post.
    If you use a disposable or false email address, your registration will be rejected.

    After your membership is approved, please take a minute to tell us a little bit about yourself.
    https://www.radiodiscussions.com/forums/introduce-yourself.1088/

    Thanks in advance and have fun!
    RadioDiscussions Administrators

"HD" AM Broadcast reception

T

Turntable

As the owner of two JVC HDR-1 Car receivers, one in my truck and one in my Honda Accord, I cannot for the life of me understand why I have yet to hear ANY AM stations received in IBOC. Listening to WCBS-AM last night in my truck, all I got was **** in the display for a few seconds, and then the display reverted back to displaying 880. The HD indicator was flashing, which is what the radio does when it knows the digital carrier is present and is attempting to get a lock. I thought it might have been ignition noise, but even after shutting down the engine I got the same result. This was practically a city-grade signal, with no noise, hiss, or other interference. The same thing happens in the Accord, and I'm assuming it's pretty unlikely I have TWO defective units. Does Ibiqity's system for AM Digital work at ALL?

Thanks for any opinions,

-A
 
In short, just barely! Ibiquity AM "HD" is crapware. It has no range, blitzes out when there's any interference including lightning and man-made sources. It's truely a joke. Folks, isn't it time to get do a PFRM to get the FCC to make all "HD" radios also compatible with DRM so in 20 years we can throw this crap technology in the can where it belongs and go to something that works?
 
Alan Fletcher said:
As the owner of two JVC HDR-1 Car receivers, one in my truck and one in my Honda Accord, I cannot for the life of me understand why I have yet to hear ANY AM stations received in IBOC. Listening to WCBS-AM last night in my truck, all I got was **** in the display for a few seconds, and then the display reverted back to displaying 880. The HD indicator was flashing, which is what the radio does when it knows the digital carrier is present and is attempting to get a lock. I thought it might have been ignition noise, but even after shutting down the engine I got the same result. This was practically a city-grade signal, with no noise, hiss, or other interference. The same thing happens in the Accord, and I'm assuming it's pretty unlikely I have TWO defective units. Does Ibiqity's system for AM Digital work at ALL?

Thanks for any opinions,

-A
Click to expand...

It could just be that your radios are "Deaf" when it comes to digital. That's been the problem with most HD receivers on the market....they need a high signal level in order to throw them to digital.
I have a table radio and it works fine, as long as you orient the AM loop antenna properly. But then again, I am in Manhattan....
 
Does either vehicle have a real mast antenna or are these windshield antennas?

I don't think HD will ever work for AM in cars unless a mast antenna is used.
Then, too, modern mast antennas are usually "coils" around a mast, the mast itself is not the antenna.
The connection from coax center to whip-inductance/antenna on these new types often fails within 5 years.
 
The truck has a (real, shield to chassis for ground plane, whip as receiving element) whip antenna, the accord has a windshield embedded. Both work fine on FM (Digital and analog) and AM (analog). I'm in CT but I'm on the fringes of NYC and can get excellent signals in this area from both the NYC and Hartford markets.

Hope this helps...

-A
 
Actually to be more accurate, the truck is a 1989 Chevy Silverado, the Accord is a 1996 EX and the antenna is actually embedded in the rear window.

Sorry for leaving that info out.

-A
 
If the antennas are working fine for AM analog, I think we can guess the problem is the HD-AM.

Many GM whip antennas are the coil - around-a- mast design, where you can see a spiral running around the mast.

If that's the type you have, you may need to assess whether your analog AM sensitivty is really what it should be.
Is the AM analog sensitivity markedly better for the JVC receiver in the Chevy?
It should be. If not, try changing the antenna, or at least try a different antenna temporarily.
 
Status
This thread has been closed due to inactivity. You can create a new thread to discuss this topic.


Back
Top Bottom