On Sep 10, 10:31 am, "Lucky" wrote:
-
- Hi guys, Long time no talk.
- I hope all is well.
- I haven't been following this HD radio subject
- so I have a question about it.
-
- Will I still be able to pick up the same stations
- with my old analog radios if they go HD?
-
- Hi again
- Lucky

Lucky - If your are 'lucky' Yes.

[ Where you Live and Listen and the Distance
to each AM/MW Radio Station's Transmitter
is important. ]

AM/MW "HD" RADIO :
But may be not -if- what you like to Listen to the
AM/MW Radio is beyond the 10mv/m Contour.

Example : KSFO-AM 560 kHz in the SF Bay Area
http://www.radio-locator.com/cgi-bin...=KSFO&sr=Y&s=C
Predicted daytime coverage area for KSFO 560 AM, San Francisco, CA
http://www.radio-locator.com/cgi-bin...atus=L&hours=D
* Prior to "HD" AM/MW Radio you could generally hear
Analog KSFO out to the Purple Line {Distant Zone}
* Now with "HD" AM/MW Radio you will most likely only be
able to hear Analog KSFO out to the Red Line {Local Zone}
- - - Within the 10mv/m Contour.

THE BIG DIFFERENCE IN AM/MW RADIO WILL BE AT
NIGHT FOR THE MOST PART DXING WILL BE GONE.
Predicted Nighttime* coverage area for KSFO 560 AM, San Francisco, CA
http://www.radio-locator.com/cgi-bin...atus=L&hours=N
* Prior to "HD" AM/MW Radio you could generally
hear Analog KSFO at Night out to the Purple Line
{Distant Zone} and Beyond into "The DX Zone" . . .
* Now with "HD" AM/MW Radio you will most likely
only be able to hear Analog KSFO at Night out to
the Red Line {Local Zone}
* No More "DX" AM/MW Radio at Night.

RESULT - AM/MW "HD" Radio will make all {both
Analog and Digital} AM/MW Radio Listening 'local'.
- - - Especially at Night.


FM "HD" RADIO :
-WRT- FM "HD" Radio for the most part Analog FM Radio
has always been a 'local' Broadcast Media : So unless
you live on the Fringes of the FM Analog or Digital Signal
you will still hear all {both Analog and Digital} the FM Radio
Stations that you hear now.

Example : KQED-FM 88.5 MHz in the SF Bay Area
http://www.radio-locator.com/cgi-bin...=KQED&sr=Y&s=C
Predicted coverage area for KQED 88.5 FM, San Francisco, CA
http://www.radio-locator.com/cgi-bin...atus=L&hours=U
* Prior to "HD" FW Radio you could generally hear
Analog KQED out to the Purple Line {Distant Zone}
* Now with "HD" FW Radio you will most likely only be
able to hear Analog KQED out to the Red Line {Local Zone}
- - - Within the 60 dBu Contour
http://www.fcc.gov/fcc-bin/FMTV-serv...=FM257373.html


life exists and radio listening happens
beyond the 10mv/m contour ~ RHF