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Ronald October 19th 03 12:55 AM

What is a good AM radio for DXing
 
I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.

Gregg October 19th 03 01:04 AM

I have an Akai AT-2400 tuner that did super duper well after replacing the
465 KHz ceramic filter with a Collins mechanical one :-)

Moral: Even the worst RX can be made good by tweaking the IF selectivity
;-)

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca

Ron Hardin October 19th 03 01:16 AM

Ronald wrote:
I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.


You're likely to be disappointed. At night the trouble is too many
stations, not weak signals. 50 watts makes it across the country,
but there's a million other watts on the same frequency along the
way.

A selective radio (=picking out only one channel) eliminates most
problems with stations on nearby frequencies (so you're really dealing
with 3 million unwanted watts, a million on each side) but you
still have the million on the frequency you're tuned to. The CC Crane
is fairly selective.

For the same price I'd go for a Sony 7600GR (http://www.jandr.com)
which at least gives you the ability to pick upper or lower sideband
with its synch detection, and gives you as a bonus shortwave as well;
it needs a MW loop antenna in the daytime and then it equals the
CC Crane. Select-a-tenna or Terk loop, for instance; get the cheap
passive models.

Daytime MW DXing is much more interesting because then sensitivity
really does matter.
--
Ron Hardin


On the internet, nobody knows you're a jerk.

Tony Meloche October 19th 03 01:34 AM



Ron Hardin wrote:

Ronald wrote:
I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.


You're likely to be disappointed. At night the trouble is too many
stations, not weak signals. 50 watts makes it across the country,
but there's a million other watts on the same frequency along the
way.

A selective radio (=picking out only one channel) eliminates most
problems with stations on nearby frequencies (so you're really dealing
with 3 million unwanted watts, a million on each side) but you
still have the million on the frequency you're tuned to. The CC Crane
is fairly selective.

For the same price I'd go for a Sony 7600GR (http://www.jandr.com)
which at least gives you the ability to pick upper or lower sideband
with its synch detection, and gives you as a bonus shortwave as well;
it needs a MW loop antenna in the daytime and then it equals the
CC Crane. Select-a-tenna or Terk loop, for instance; get the cheap
passive models.

Daytime MW DXing is much more interesting because then sensitivity
really does matter.
--
Ron Hardin




I agree completely with the last sentence. Late at night, the
differences between various AM receivers *shrinks* as compared to
daytime (though some are still much better than others, of course), but
in midday AM DX, the radios built especially for it, and in conjunction
with something like a passive inductive loop (I like the Select-A-Tenna)
can give amazing performance over the typical AM/FM radio of today with
a 79¢ AM tuner section in it.

Tony


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James Nipper October 19th 03 02:04 AM

Only if you want the best.

--James--

----------------------------------------------
I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.


David Eduardo October 19th 03 02:06 AM


"James Nipper" wrote in message
...
Only if you want the best.


The GE SuperRadio is in many ways superior to the triple-priced Crane
offering, which was born in the knowledge that there are lots of talk show
listeners who are not going to price or value shop.

Neither is an R8B.



Michael October 19th 03 02:07 AM

I'm in NJ and I can hear AM stations from: OH, IL, KY, PA, NY, MA,VA and
other states. For me, the key to medium wave AM broadcast listening is
having a receiver like my R-75 that has SSB, pass band shift, noise blanking
and noise reduction. With those options, not only will you be able to
"hear" distant AM stations, you will actually be able to "listen" to them,
practically speaking.

If you are into DX'ing to see what you can "catch" with your radio, and
listen to, you will need a serious rig like the R-75. At the very least, a
good portable with ssb like the Sony 7600gr or the Grundig YB-400. Also...
Just as importantly. Some sort of antenna that is made to have a good
signal to noise ratio for the AM broadast band.

If your interest is being able to suck up the content of the shows and not
the DX'ing itself, just listen to them via webcast.
--
Respectfully,

Michael

Home Page: http://md_dxing.tripod.com/
Northern NJ
R75 w/DSP, Kiwa agc/sync & audio mods
G5RV & 200ft longwire w/ICE-180
MFJ-1048 preselector
SoundBlstr Live PC card w/five piece Cambridge
speakers & full software mixer/eq.

"Ronald" wrote in message
om...
I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.




Frank Dresser October 19th 03 02:10 AM


"Gregg" wrote in message
news:iykkb.5814$At.3333@edtnps84...
I have an Akai AT-2400 tuner that did super duper well after replacing the
465 KHz ceramic filter with a Collins mechanical one :-)

Moral: Even the worst RX can be made good by tweaking the IF selectivity
;-)

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca



Is your Akai analog or digital? My flea market early 80's Harmon Kardon has
a pretty good AM tuner. Good sensitivity, low noise and about 15
flywheel-weighted turns lock to lock on the dial. It's only real DX
drawback are rather wide IF transformers, which is what I expect for a
hi-fi. I could say the same for the JVC stereo I trashpicked a few years
ago. But it had all slider controls, an idiotic thumbwheel instead of a
tuning knob and it was ugly. It was disco era. I fixed it up and gave it
away. It did work pretty well with my homebrew loop.

Frank Dresser



Diverd4777 October 19th 03 04:07 AM

Try a Radio Shack loop antenna (Or C Crane Justice antenna)
That will help . . .





In article ,
(Ronald) writes:


I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.





Gregg October 19th 03 04:17 AM

Behold, Frank Dresser signalled from keyed 4-1000A filament:

Is your Akai analog or digital?


Analog. I'dda left it in the trash can if it was digital ;-)

It's only real DX drawback are rather wide IF transformers


Yeah, same here. FM section is fantabulous, but AM section is a "radio on
a chip" with two external cans, RF, IF and of course, the external
loopstick.

Pull the I,F. can and inserted the mech. filter and hey, hot dog!

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca

Gregg October 19th 03 04:18 AM

Behold, --exray-- signalled from keyed 4-1000A filament:

Ronald wrote:
I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.


Sorry, you're not going to be able to listen to New York and Chicago
from LA on any AM radio.
I hate to say it but your best option is live audio on the internet.

-Bill


Chainsawed computer box coming up next?

Hehehehehe ;-)

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca

--exray-- October 19th 03 04:26 AM

Gregg wrote:

Sorry, you're not going to be able to listen to New York and Chicago
from LA on any AM radio.
I hate to say it but your best option is live audio on the internet.

-Bill



Chainsawed computer box coming up next?

Hehehehehe ;-)

If I say you can sit in LA and listen to New York on AM on it would you
buy it?
Hey, if it weren't for that darn fibre-optic cable you could dial a
number in New York City and get a solid copper wire connection to use as
an antenna!


:-)


test October 19th 03 04:36 AM

In article , Diverd4777
wrote:

Try a Radio Shack loop antenna (Or C Crane Justice antenna)
That will help . . .

_____

i second this guys suggestion from personal experience. i live in a
remote area in ontario canada and using the justice antenna on my
Grundig Satellite 800 produces amazing results. it will pull a station
straight out of pure static and clean up inaudible signals like you
wouldnt believe. i am thoroughly impressed with this product.

again this is my personal experience and i dont pretend to speak for
everyone and every configuration

best of luck dx'ing!

-
test

CW October 19th 03 04:47 AM

It doesn't matter what radio you get, you are not going to be able to get
what you are looking for on the AM broadcast band. The long distance
reception you may be reading about here are rare events and are usually
audible just well enough to identify and then not for long. At night, you
should be able to get as far north as Washington state on a fairly regular
basis but during the day, forget it.


"James Nipper" wrote in message
...
Only if you want the best.

--James--

----------------------------------------------

I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts.




Frank Dresser October 19th 03 12:24 PM


"CW" wrote in message
news:vPnkb.815189$Ho3.223307@sccrnsc03...
It doesn't matter what radio you get, you are not going to be able to get
what you are looking for on the AM broadcast band. The long distance
reception you may be reading about here are rare events and are usually
audible just well enough to identify and then not for long. At night, you
should be able to get as far north as Washington state on a fairly regular
basis but during the day, forget it.




Yeah, CW's right. 20 - 25 years ago I could catch bits of KFI through WOI
from Chicago every once in a while. Not any more. The old clear channel
stations now have much less nighttime protection than they used to, and it
was always an iffy proposition anyway.

Frank Dresser



Diverd4777 October 19th 03 12:50 PM

In article vPnkb.815189$Ho3.223307@sccrnsc03, "CW"
writes:


I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts.


SOMEONE ( name escapes me) in this group used multiple Loop antennas
to null out local stations & , from teh midwest, pick up NY stations..
- probably not on a regular basis thoough..

- There are probably some NY talk shows that are carried by local AM stations
in Calif...

- Then on Sunday Nights, on 7.415, there's John Lightning;
( &- HE'S a New Yorker ...! )

Bill Hennessy October 19th 03 02:13 PM

This might seem strange but, The best DX'er I ever saw was a regenerative
receiver I bult myself. Why? Because all the AM radios are attenuated to
pick up local stations so you will not get QRM from stations not local.
Even a one tube rig I built was better than one I could buy.

Bill, N5NOB





Frank Dresser October 19th 03 02:34 PM


"Diverd4777" wrote in message
...
In article vPnkb.815189$Ho3.223307@sccrnsc03, "CW"
writes:


I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts.


SOMEONE ( name escapes me) in this group used multiple Loop antennas
to null out local stations & , from teh midwest, pick up NY stations..
- probably not on a regular basis thoough..

[snip]

Distance is less of a problem than interference. I can hear most of East
Coast/Southern "clear channel" stations pretty well here in Chicago at
night. The New York stations are more difficult, but mostly because of loud
adjacent channel interference here. But on the West Coast, there's now
usually a powerful local or regional station with a directional antenna,
right on the same frequency. I used to get KSL almost like a nighttime
local, before WJJD/WSCR and others went to 24 hour operation. I suppose
nulling most of it out is possible, but it would take some time and
determination to find out.

If the original poster is more interested in the programming, rather than
the challenge, the Internet radio suggestion is a good one.

Frank Dresser




David October 19th 03 03:10 PM

Used to be able to get WLS in L.A. until St. George fired up.

On Sat, 18 Oct 2003 20:25:14 -0400, --exray-- wrote:

Ronald wrote:
I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.


Sorry, you're not going to be able to listen to New York and Chicago
from LA on any AM radio.
I hate to say it but your best option is live audio on the internet.

-Bill



Diverd4777 October 19th 03 05:12 PM

Ronald

Link to Justice & other antenna reviews . .

http://www.phillytalkradioonline.com...t.html#Justice




In article ,
(Ronald) writes:


I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.









Gray Shockley October 19th 03 09:02 PM

On Sun, 19 Oct 2003 9:10:58 -0500, David wrote
(in message ):

Used to be able to get WLS in L.A. until St. George fired up.


? When I was a teenager I uswed to listen to WLS (World's Largest Store) but
it was in Chicago grin.

This was late 50's, early 60's (S-38B).


Gray



On Sat, 18 Oct 2003 20:25:14 -0400, --exray-- wrote:

Ronald wrote:
I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.


Sorry, you're not going to be able to listen to New York and Chicago
from LA on any AM radio.
I hate to say it but your best option is live audio on the internet.

-Bill





charlie juliet november October 19th 03 11:35 PM

"CW" wrote in
news:vPnkb.815189$Ho3.223307@sccrnsc03:

It doesn't matter what radio you get, you are not going to be able to
get what you are looking for on the AM broadcast band. The long
distance reception you may be reading about here are rare events and
are usually audible just well enough to identify and then not for long.
At night, you should be able to get as far north as Washington state on
a fairly regular basis but during the day, forget it.



I agree. The best I could do from here in L.A. is ID a few Canadian
stations, but the signals aren't very listenable. I could pick up a rare
signal east of the Mississippi River (KY and OH), but not much further.

--

Pete KE9OA October 20th 03 12:37 AM

300 to 400 miles is possible in the daytime..................here in
Chicago, I can hear WLW, on 700kHz, all day. Even when I was living in Cedar
Rapids, I could still pull in that station, along with CFCO, in Chatham,
Ontario, on 630kHz. On 610kHz, I could pull in either Kansas City, Mo. or
Colombus, Ohio. This was daytime reception. Back here in Chicago, I can pull
in the 524kHz beacon from Iowa City. Other daytime stations are 760kHz,
Detroit, 810kHz, Kansas City, Mo, 830kHz, WCCO, and 870kHz, Grand Rapids,
Michigan.
Once you get a system that can hear down into the atmospheric noise, things
change. Once, at a hamfest at the Amana Colonies, back in Iowa, I laid down
210 feet of wire on the ground. On the LW band, every few kHz there were
stations. On MW, all of the Chicago stations came in with no noise. WLW was
coming in at S9 +10dB.

Pete

--exray-- wrote in message
...
Gregg wrote:

Sorry, you're not going to be able to listen to New York and Chicago
from LA on any AM radio.
I hate to say it but your best option is live audio on the internet.

-Bill



Chainsawed computer box coming up next?

Hehehehehe ;-)

If I say you can sit in LA and listen to New York on AM on it would you
buy it?
Hey, if it weren't for that darn fibre-optic cable you could dial a
number in New York City and get a solid copper wire connection to use as
an antenna!


:-)




tommyknocker October 20th 03 11:36 PM

Ronald wrote:

I enjoy listening to talk radio shows at night but find my current
Radio Shack unit lacking. I live in Malibu, CA and would enjoy
listening to talk shows out of New York, Chicago and other cities with
great hosts. CC Crane offers the Sangean CCRadio Plus for $165 but
before spending this much on an AM radio does anyone have first hand
experience with it. Is there any real need to spend $165 for an AM
radio.


First off, you're unlikely to hear anything east of the Rocky Mountains
except under rare propagation conditions. Likewise, people in Chicago
can't hear LA. The Rockies seem to act as a giant barrier for AM BCB
signals, cutting off the West from the East.


Brenda Ann October 21st 03 12:26 AM


"tommyknocker" wrote in message
...
First off, you're unlikely to hear anything east of the Rocky Mountains
except under rare propagation conditions. Likewise, people in Chicago
can't hear LA. The Rockies seem to act as a giant barrier for AM BCB
signals, cutting off the West from the East.


From my (former) home in Portland, OR, I could hear fairly regularly KMOX in
St. Louis, WWL in New Orleans and KSTP in Minneapolis/St. Paul. No, I never
did hear anything any farther east than those. Always good reception, though
from TX, OK and points south of there.



WShoots1 October 21st 03 02:49 AM

The high and higher mountains behind Malibu, where the originator of this
thread lives, probably don't help, either.

Bill, K5BY

dxlover October 21st 03 08:44 AM

Sorry, you're not going to be able to listen to New York and Chicago
from LA on any AM radio.
I hate to say it but your best option is live audio on the internet.

There you go, best advice in the whole thread. ;-)



--
^~^~^Monitoring The Spectrum^~^~^~^
*********Hammarlund129X & 140X**********
^^^^^^^^Heathkit Q Multiplier^^^^^^^^^
*~*~++++++GO BEARCATS++++++~*~*~
GE P-780



dxlover October 21st 03 08:50 AM

Try a Radio Shack loop antenna (Or C Crane Justice antenna)
That will help . . .

Dan,
You 'should' know better. NOT for what the original poster was asking. No
way.

--
^~^~^Monitoring The Spectrum^~^~^~^
*********Hammarlund129X & 140X**********
^^^^^^^^Heathkit Q Multiplier^^^^^^^^^
*~*~++++++GO BEARCATS++++++~*~*~
GE P-780



starman October 22nd 03 08:05 AM

WShoots1 wrote:

The high and higher mountains behind Malibu, where the originator of this
thread lives, probably don't help, either.

Bill, K5BY


There are differing opinions on whether mountains have any significant
effect on MW or HF (shortwave) reception. The ground (soil) conditions
may have more influence than the terrain.


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WShoots1 October 23rd 03 03:15 AM

There are differing opinions on whether mountains have any significant
effect on MW or HF (shortwave) reception. The ground (soil) conditions may have
more influence than the terrain.

I cannot disagree with anything you wrote. G It's one of things that make a
regular search more meaningful. For starters, he should seek out that 50kw
Dallas station, WBAP on 820 kHz, mentioned in another thread. If that blow
torch can't be heard in Malibu at night, then the Rockies, if not the closer
mountains, will be the boundary for easterly stations.

Bill, K5BY

Steven Swift October 23rd 03 03:48 AM


My best AM DXing came not from the best radio, but from a great antenna.
I had approximately 300 feet long-wire running North-south and another
300 feet going east-west. We lived on a bluff so the antennas had clear sky
view for almost 360 degrees. I had a tuning box set up so I could tune
the effective "direction" and length of the two antennas. In a period
of about 2 years, I QSL'ed each western state, all Canadian Provinces (except
the Maritimes) and a bunch of east-of-Mississippi ("w") stations.

Radios used: Hallicrafters S-38B and a 1959 Rambler permeability tuned
car radio.

I am getting back into the game with a Sony 7600GR and an old BC-314.

Have fun.

Steve
--
Steven D. Swift, , http://www.novatech-instr.com
NOVATECH INSTRUMENTS, INC. P.O. Box 55997
206.301.8986, fax 206.363.4367 Seattle, Washington 98155 USA

starman October 23rd 03 07:22 AM

WShoots1 wrote:

There are differing opinions on whether mountains have any significant
effect on MW or HF (shortwave) reception. The ground (soil) conditions may have
more influence than the terrain.

I cannot disagree with anything you wrote. G It's one of things that make a
regular search more meaningful. For starters, he should seek out that 50kw
Dallas station, WBAP on 820 kHz, mentioned in another thread. If that blow
torch can't be heard in Malibu at night, then the Rockies, if not the closer
mountains, will be the boundary for easterly stations.

Bill, K5BY


The mountains might be the geographical boundary but we shouldn't assume
they are the actual cause of MW signal attenuation from the west coast
at night. Long distance MW propagation at night is mainly via skywave
refraction from the ionosphere, just like shortwave. A range of
mountains is not going to interfere with what is taking place 50-miles
or more above them. This is not the case in the day when MW propagation
is primarily via groundwave. Then the mountains may well have an effect.
We have to consider the nature of the geology (particularly the soil)
west of the mountains and how this may affect MW propagation towards the
east at night.


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Brenda Ann October 23rd 03 07:34 AM


"starman" wrote in message
...
The mountains might be the geographical boundary but we shouldn't assume
they are the actual cause of MW signal attenuation from the west coast
at night. Long distance MW propagation at night is mainly via skywave
refraction from the ionosphere, just like shortwave. A range of
mountains is not going to interfere with what is taking place 50-miles
or more above them. This is not the case in the day when MW propagation
is primarily via groundwave. Then the mountains may well have an effect.
We have to consider the nature of the geology (particularly the soil)
west of the mountains and how this may affect MW propagation towards the
east at night.



The greatest boundary to bi-coastal AM DX is not geographical at all.. but
purposeful. Stations that have high power at night have very directional
arrays that protect other stations on the same frequency. Most on the west
coast have N-S or similar patterns that keep them from being heard on the
east coast. For instance, KOMA (or whatever they are this week) in OKC and
KKSN in Portland, OR must protect each other's nighttime coverage. (both are
1520 KHz).

An interesting point... I have yet to see a directional array here in the
ROK.. and it shows.. at night there are so many stations fighting over any
given frequency that it numbs the mind. Most of the winners are Russian and
Chinese. I have only ever heard one Japanese MW station here..




starman October 23rd 03 08:34 AM

Brenda Ann wrote:

The greatest boundary to bi-coastal AM DX is not geographical at all.. but
purposeful. Stations that have high power at night have very directional
arrays that protect other stations on the same frequency. Most on the west
coast have N-S or similar patterns that keep them from being heard on the
east coast. For instance, KOMA (or whatever they are this week) in OKC and
KKSN in Portland, OR must protect each other's nighttime coverage. (both are
1520 KHz).

An interesting point... I have yet to see a directional array here in the
ROK.. and it shows.. at night there are so many stations fighting over any
given frequency that it numbs the mind. Most of the winners are Russian and
Chinese. I have only ever heard one Japanese MW station here..


After viewing the following (below) FCC webpage, I do get the impression
there are fewer class-ND1, 50-KW unlimited, MW stations on the west
coast than in the east. Could that mean it's easier for the west coast
to hear the east, than vice versa?

http://www.fcc.gov/fcc-bin/amq?state...2=&EW=W&size=9


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RHF October 23rd 03 11:32 AM

BA,

Plus since the 1950s & 1960s the number of 'Regional'
non-clear-channel broadcasters have been increased and added to the
"Clear Channel" Frequencies. So the result is that here are really no
more Coast-to-Coast (Border-to-Border) AM/MW Radio Stations anymore.

Your example of the Directional Antennas "DA" used by the West Coast
'clear channel' radio Stations is True.

KGO 810 kHz @ 50KW using a "DA" in the SF Bay Area is very strong
North and South. But KGO is very 'weak' during the Day and can
'fade' at Night up here in the Sierras (Twain Harte, CA) due East of
the SF Bay Area. Some of the Monterey/Santa Cruz Bay Area
broadcasters that use 1/10 the power of KGO have better signal up hear
during the day.

KCBS 740 kHz @ 50KW does NOT use a "DA" in the SF Bay Area is strong
North, East and South. During the Day KCBS has a 'fair' signal and at
Night the signal is strong.


~ RHF
..
..
= = = "Brenda Ann"
= = = wrote in message ...
"starman" wrote in message
...


The greatest boundary to bi-coastal AM DX is not geographical at all.. but
purposeful. Stations that have high power at night have very directional
arrays that protect other stations on the same frequency. Most on the west
coast have N-S or similar patterns that keep them from being heard on the
east coast. For instance, KOMA (or whatever they are this week) in OKC and
KKSN in Portland, OR must protect each other's nighttime coverage. (both are
1520 KHz).

An interesting point... I have yet to see a directional array here in the
ROK.. and it shows.. at night there are so many stations fighting over any
given frequency that it numbs the mind. Most of the winners are Russian and
Chinese. I have only ever heard one Japanese MW station here..


Brenda Ann October 23rd 03 01:27 PM


"RHF" wrote in message
om...

KGO 810 kHz @ 50KW using a "DA" in the SF Bay Area is very strong
North and South. But KGO is very 'weak' during the Day and can
'fade' at Night up here in the Sierras (Twain Harte, CA) due East of
the SF Bay Area. Some of the Monterey/Santa Cruz Bay Area
broadcasters that use 1/10 the power of KGO have better signal up hear
during the day.



Twain Harte... that's up there near Angel's Camp, isn't it? Calaveras
County? I was up there on vacation about 5 or 6 years ago..



David Eduardo October 23rd 03 08:27 PM


"RHF" wrote in message
om...
BA,

KCBS 740 kHz @ 50KW does NOT use a "DA" in the SF Bay Area is strong
North, East and South. During the Day KCBS has a 'fair' signal and at
Night the signal is strong.


KCBS simply has a different Directional Antenna system. They use 4 towers,
with different patters by day and night.

Simplified, they have a big null over the 0 to 80 degree arc, protecting the
Canadian border.




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