Pete KE9OA wrote:

It sounds like you are having cross-modulation in the 1st mixer. Some RF
selectivity ahead of that mixer should minimize the problem. Are you
connecting any kind of extra wire to the whip antenna? Are you using the
whip antenna only?

Whip only, I don't have the proper adapter yet to connect the external
antenna.

I have noticed that touching the whip will increase the loudness of the
station causing the problem.

By accident I found out that turning off DX mode eliminates the problem.






I have experimented with the Radio Shack passive tuned loop, using the PAL
antenna input. No matter which way I have the loop aimed, and whether or not
I have the loop antenna close to or far away from the radio, I do hear some
birdies that appear to come from the uP. Since this doesn't occur when using
the whip antenna and since the distance of the loop antenna from the radio
doesn't make any difference with this noise, it appears to be from conducted
emissions at the circuit board.
The designer of this radio chose to have the external DC jack located right
next to the external antenna connector. This is the worst thing that could
have been done, since the return currents from the noisy control circuitry
are going to be modulating the ground system in the radio. What this means
is that the PAL antenna connector is going to have a noisy ground shell.
I haven't tried this external connector with a long wire antenna, and I
haven't tried it with batteries. Batteries may eliminate the problem, unless
the voltage regulators in this area of the radio are used, even on battery
power.
Whenever a circuit board layout is done, the power supply return should
always be as far away from the sensitive, small signal circuits as possible.
Too bad this wasn't done with this design. Overall, I do like the radio, but
I may have to use a ferrite choke in series with the ground return on the
PAL connector to solve this problem. Maybe, after I finish the other 10,000
projects I am already working on!

Pete

"Brody" wrote in message
news:Vxrmj.6689$4w.1950@pd7urf2no...

RHF wrote:

On Jan 25, 2:42 am, Brody wrote:


RHF wrote:


On Jan 25, 12:30 am, Brody wrote:

dxAce wrote:

junius wrote:

On Jan 24, 7:39 pm, Brody wrote:

I received the Eton E1 as a gift. After reviewing the
pros/cons/quality
issues, I decided to keep it.

I saw the C.Crane Twin Coil reviewed as a great AM antenna for the
E1 so
I bought it. Now I have to connect the antenna to the PAL connector
of
the E1.

I contacted C.Crane and they told me I needed a PAL to RCA adapter.
These seem to be hard or impossible to fine online. Does anyone in
this
group know of a source for them ??

If not, maybe someone here can tell me if this will work.
The C.Crane antenna uses a RCA jack to connect to the radio antenna
connector so... will the following work

(PAL to F adapter) + (F to RCA adapter). These I can find online.

For what it's worth, I know nothing about shortwave radio, The E1 is
my
first shortwave radio and I am just beginning to learn about the
hobby.

get your pal to rca he

http://www.onevisitmedia.com/adapterspal.html

Even better!

yah ! the one on the Universal Radio link didnt say what it converted
PAL to... I was going to have to phone.. thanks for your help anyway-
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Brody,

What About Listening to the Shortwave Radio Broadcasts
on this very fine 'portable' AM/FM Shortwave Radio ?

of course One step at a time though.


- I listen to some talk radio that I can receive from the U.S.

? From the U.S. ?

Where Are You Located : City + State + Country ? ? ?

Well.. I posted the following reply last night but it didnt appear on my
news server so I am reposting it...

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

Lower Mainland, British Columbia, Canada
White Rock to be exact, which is just across the border from Blaine WA

Late night, using the whip on the E1 I was suprised to be able to pick up
AM stations in Reno NV, San Francisco, I even picked up one from Calgary
Alberta.

I am having a problem though from about 1000 kHz to 3000 kHz. Anything I
can receive in that range has another station I can hear at the same time.
Always the same station. I can hear it by itself, very loud and clear at
1600 kHz so I assume that this is its assigned frequency. It is Islamic
music or chanting, religious I think. It is most annoying. I seem to be
able to pick up quite a few stations in this range but always they
overlaid with the one at 1600 kHz, loud enough make pretty much everything
in this range unlistenable. I havent tried in the daytime yet to see if
the problem is the same.

Hopefully the C.Crane AM antenna I just got will be able to help, I have
to wait till I get the PAL to RCA adapter though

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









so I researched AM antennas and settled on the C.Crane

I am looking at shortwave antenna now.

thanks







For Shortwave Radio Listening (SWL) you may want to use
an External Shortwave Antenna : To make that 'connection'
to a SWL Antenna with a Coax Cable using a PL-259 Plug.

Universal-Radio sells a SO-239 to KOK Antenna Jack Adapter
http://www.universal-radio.com/catal...able/0101.html
http://www.universal-radio.com/catal...table/1052.jpg

e1'ing you all ~ RHF
.
Eton E1 Radio Owners and Future E1 Owners
Including 'future' Grundig G1 Radio Owners
Check-Out the Eton E1 Radio Group on YAHOO !
http://groups.yahoo.com/group/ETON-E1-XM-Radio/
Here is your News, Information and Help Center for the
-For- ETON E1 RADIO INFO =http://tinyurl.com/9lfd7
Eton "E1" AM & FM + Shortwave 'World Band' Receiver
-For- ETON E1 RADIO HELP =http://tinyurl.com/9lfd7
with optional XM-Satellite-Radio.
-For- ETON E1 RADIO NEWS =http://tinyurl.com/9lfd7

. . .
.
. .
.
. . . O u t !- Hide quoted text -

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