Ken Thomas wrote in message . ..
my DX398 has a lot of hiss through the headphones and line out.
Compare it to say, a Walkman - Sony is clear as a bell. My opinion,
and think about this for a second - any radio that has a speaker has
hiss on the line out or phones - without a speaker - like a Walkman or
IPOD, etc.. no hiss and sounds beautiful.


Must be a design problem with that particular radio. All my radio's
have both speakers and headphone jacks. Well....Let me take that back,
the drake R4 uses an outboard speaker, but it still uses a speaker
out, and also a headphone jack.
Most of mine have no real hiss at all. My older tube types probably
have the most, but it's not enough to override the audio once it's
turned up to a usable level. My newer solid state radios have very
little. At the moment, I have two radios on. A IC-706mk2g, and a
TS-830. I just did a test using the phones. I could detect no
noticable hiss whatsoever. Having a speaker will not effect whether a
radio has hiss in the audio circuit. This is a audio circuit design
problem. Probably stemming from cutting corners to make a lower price
radio. You gets whats ya pay for....Also, comparing walkmans and ipods
to a shortwave radio is kind of like apples and oranges. The walkmans
have cleaner audio designs because they are designed for music and
they know music listeners are very picky. Requires a clean, wide range
amp. The lower priced shortwave radios don't have near the quality of
audio amps the walkmans do. They recognise that most "average" users
wouldn't hear the difference anyway when listening to broadcasts that
barely even utilize half the audio spectrum a walkman does. "20-20,000
hz" or whatever...As far as your "hiss", it's likely just the results
of a fairly cheap and simple audio amp, or poor circuit layout,
decoupling, design, whatever.... Common in many portables. If they put
more money in the audio amp, they would have to cut something else to
keep the same price..IE: BFO, digital readout, or whatever. My radios
don't hiss cuz they cost quite a bit more than a dx-398, and have
better and quieter audio circuit designs. Maybe blunt, but tis the
real reason...:/ You gets whats ya pay for. MK

JT,

Getting the "Best Sound" out of your World-Band Radio
GoTo= http://www.redbird.net/n8ku/sound.htm

Some Highlights on this webpage by N8KU :

* Luckily, AM (SW) Radio is by nature not too demanding in
the areas of low bass or high treble.

* The AM (SW) Frequency Spectrum that you are likely to coax
out of even the best shortwave receivers extends only
from about 100 Hz to perhaps 5 or 6 KHz.

* What you will get from AM (SW) is the "slam" of realistic
dynamic range.

* Musical programs on the stronger stations such as the
BBC or Radio Nederland sound just incredible.

* Talk about "feeling the music!"

* And as a bonus, I can listen to local AM Stations for
more consistent musical programming.

* But even for news and talk shows, a professional 12" Woofer
raises the intelligibility to a level you won't believe.


hsts ~ RHF
= = = How Sweet the Sound! joy, Joy. JOY !
..
..
= = = (J. Tozzo)
= = = wrote in message . com...

I hooked up a DJ mixer to my stereo yesterday so i could listen
to vinyl & cds on it. I plugged my ICOM R75 into one of the
unused channels (via LINE OUT) and brought it up & it sounds great!
(in that shortwavy noisy way) It seems like both the audio frequency
response & dynamic range are greatly increased compared to headphones
(good sonys) and especially the internal speaker. The stereo is
a Technics SU-V26 & Cerwin Vega E310's if that matters to anyone.
So if your radio is near your stereo give it a go. Now i need a
good recorder (& the other turntable). I cant wait to hear some
good music on the pirate stations.... we'll see tonight hopefully.
ok folks bye
- - - Justin keepin it cloudy in SW Fla.......

..

I have tested several radios i have:

MY portable radios get nice signals but with high background noises
-Two of them (Chibo 999) with broad pasband gete a nice audio .
-One fully trransistorized BOLONG gets also marvelous FM audio to very
pealsant near 'HiFI' audio
-ICOM R75 goes well , Not a so gerat sound as form its speaker
-Lowe HF150 gets beter audio

You can read reviewsof several KChibo radios and Bolong in this file in
my web page
www.geocities.com/zliangas/kchibo.pdf

Zacharias Liangas


-----------
JT,

Getting the "Best Sound" out of your World-Band Radio
GoTo= http://www.redbird.net/n8ku/sound.htm

Some Highlights on this webpage by N8KU :

* Luckily, AM (SW) Radio is by nature not too demanding in the areas of low
bass or high treble.

* The AM (SW) Frequency Spectrum that you are likely to coax
out of even the best shortwave receivers extends only
from about 100 Hz to perhaps 5 or 6 KHz.

* What you will get from AM (SW) is the "slam" of realistic
dynamic range.

* Musical programs on the stronger stations such as the
BBC or Radio Nederland sound just incredible.

* Talk about "feeling the music!"

* And as a bonus, I can listen to local AM Stations for
more consistent musical programming.

* But even for news and talk shows, a professional 12" Woofer
raises the intelligibility to a level you won't believe.


hsts ~ RHF
= = = How Sweet the Sound! joy, Joy. JOY !
..
..
= = = (J. Tozzo)
= = = wrote in message
. com...

I hooked up a DJ mixer to my stereo yesterday so i could listen
to vinyl & cds on it. I plugged my ICOM R75 into one of the
unused channels (via LINE OUT) and brought it up & it sounds great!
(in that shortwavy noisy way) It seems like both the audio frequency
response & dynamic range are greatly increased compared to headphones
(good sonys) and especially the internal speaker. The stereo is
a Technics SU-V26 & Cerwin Vega E310's if that matters to anyone.
So if your radio is near your stereo give it a go. Now i need a
good recorder (& the other turntable). I cant wait to hear some
good music on the pirate stations.... we'll see tonight hopefully.
ok folks bye
- - - Justin keepin it cloudy in SW Fla.......

..