Receiver test data
John Plimmer
updated his interesting list of receiver specs.
Still nothing to beat the AOR 7030..!!
Receivers listed are from the oldies like the Kenwood R-600 all the way up
to the most exotic offerings.
See http://www.sherweng.com/table.html
The receivers are ranked according to their "Dynamic Range narrow spaced"
which is one of the most important parameters for that really serious DX of
signals with adjacent channel interference.
Don't take the specs too seriously though, as a good DX friend of mine runs
rings around me when it comes to exotic DX results and he has a modest Yaesu
FRG-7 (Frog) that he swears by.
--
John Plimmer, Montagu, Western Cape Province, South Africa
South 33 d 47 m 32 s, East 20 d 07 m 32 s
RX Icom IC-756 PRO III with MW mods
Drake SW8 & ERGO software
Sony 7600D GE SRIII
BW XCR 30, Braun T1000, Sangean 818 & 803A.
GE circa 50's radiogram
Antenna's RF Systems DX 1 Pro, Datong AD-270
Kiwa MW Loop
http://www.dxing.info/about/dxers/plimmer.dx
RHF
Thank You for posting the Info about the Up-Date
to the Sherwood Engineering "Receiver Test Data"
RCVR DATA => http://www.sherweng.com/table.html
Plus your own webpages are a very informative
and an interesting read.
http://www.dxing.info/about/dxers/plimmer.dx
* RF Systems DX-1 Pro Active Antenna
-by- John Plimmer
http://www.dxing.info/equipment/dx1pro.dx
* Kiwa Mediumwave Loop Experiences
-by- John Plimmer
http://www.dxing.info/equipment/kiwa_mw_loop_plimmer.dx
* Pre-Amp Peregrinations - Adventures with RF Pre-Amps
by Advanced Receiver Research and DX Engineering
-by- John H. Bryant and Mark Connelly
http://www.dxing.info/equipment/preamp_bryant_connelly.dx
* A Second Look at Fabricating Impedance
Transformers for Receiving Antennas
-by- John Bryant with Bill Bowers
and Nick Hall-Patch [VE7DXR]
DXing.info, July 2003
http://www.dxing.info/equipment/impedance_transformer_bryant2.doc
iane ~ RHF
.
.
. .
.
Steve
John Plimmer wrote:
\<snipped>
>
> Don't take the specs too seriously though, as a good DX friend of mine runs
> rings around me when it comes to exotic DX results and he has a modest Yaesu
> FRG-7 (Frog) that he swears by.
I agree about not taking specs too seriously. Specs deserve respect and
definitely have their place, but it's amazing how little correlation
there sometimes is between what you read in a set of specs and what
happens when you turn the receiver on and connect a good antenna.
Steve
John S.
Excellent advice. Receiver specs are one way of narrowing the list of
receivers to pick from, but focusing on one spec can really lead you
astray. Many other issues are involved in choosing a receiver for use
and simple items like ergonomic design and audio quality are often
overlooked in the search for the receiver with the best spec.
And the finest receiver in the world is no substitute for knowlege of
the bands, how tie the receiver properly to one or more antennas, etc.
Guy Atkins
"John S." <hjs...@cs.com> wrote in message receiver with the best spec.
>
> And the finest receiver in the world is no substitute for knowlege of
> the bands, how tie the receiver properly to one or more antennas, etc.
Amen! An experienced DXers with an average radio can run circles around a
beginner with an expensive, hot rod receiver.
Other aspects of the entire signal chain are often overlooked or too quickly
dismissed. Here's my list of criteria, in descending order of importance:
1. ionospheric propagation
2. antenna(s)
3. receiving location (RF-quiet, noisy, at the beach for sea gain
enhancement, etc.)
4. the DXer's experience
5. receiver
6. luck!
Anyone else with a similar or differing list?
Guy Atkins
Puyallup, WA USA
www.sdr-1000.blogspot.com
cuh...@webtv.net
I am not that Jim,although the nickname O' me first name is Jim.Nobody
calls me Jim! I am the one who modeled for that Arm & Hammer baking soda
thingy.(well,really,I am not) And Rosie the Riveter stole it from me.
cuhulin
John S.
Guy Atkins wrote:
> "John S." <hjs...@cs.com> wrote in message receiver with the best spec.
> >
> > And the finest receiver in the world is no substitute for knowlege of
> > the bands, how tie the receiver properly to one or more antennas, etc.
>
> Amen! An experienced DXers with an average radio can run circles around a
> beginner with an expensive, hot rod receiver.
>
> Other aspects of the entire signal chain are often overlooked or too quickly
> dismissed. Here's my list of criteria, in descending order of importance:
>
> 1. ionospheric propagation
> 2. antenna(s)
> 3. receiving location (RF-quiet, noisy, at the beach for sea gain
> enhancement, etc.)
> 4. the DXer's experience
> 5. receiver
> 6. luck!
>
I've often felt like luck was at the top (grin)!
HFguy
>
> Excellent advice. Receiver specs are one way of narrowing the list of
> receivers to pick from, but focusing on one spec can really lead you
> astray. Many other issues are involved in choosing a receiver for use
> and simple items like ergonomic design and audio quality are often
> overlooked in the search for the receiver with the best spec.
>
> And the finest receiver in the world is no substitute for knowlege of
> the bands, how tie the receiver properly to one or more antennas, etc.
I heard more than a hundred countries and countless utilities in the
1970's with a Halli' S20R. It was a single conversion vacuum tube
receiver made in 1939! It had no selectivity positions, just *really
wide*. By today's standards that radio is a dinosaur, even compared to a
modern portable like the Sony-2010 or DX-398. Now I have a Drake-R8B.
It's a great radio but it seldom receives anything that I couldn't have
heard with the S20R, though admittedly better on the R8B in many cases.
The most important factor in shortwave listening is the knowledge and
skill of the operator. The receiver and antenna are a close second.
willis...@earthlink.net
I agree with this your list in its order, however, in place of luck I'd
put "Perserverence." You can make your own luck if you keep listening
regardless of your equipment. Conditions are constantly changing.
RHF
GE Superadios - Not ! - But Sometimes . . .
The NUMB3RS Can Not Be Ignored [.]
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/9399
This Is Why {IMHO} - There are more good AM/MW DX 'catches'
Heard with GE Superadios then all other Radios combined.
1 - The Total Number of GE Superadios being used for everyday
and all night {late night} AM/MW Radio Listening.
2 - The Total Number of Daily and Weekly Hours that
the User's of GE Superadios are :
listening, Listening. LISTENING ! to their Radios.
3 - The Numbers Add-Up and Multiply - IF It Is Out-There -
The-Chances-Are someone with a GE Superadio is searching
for it (what ever it is) or will happen on it and one of them will
"Hear It" on a GE Superadio.
sometimes quantity does trump quality - iane ~ RHF
.
.
.
. .
.
David
Bob Miller
wrote:
You need to work on your arithmetic. My CCRadio is simultaneously
tuned to 5 fm, 5 am, 2 weather and 13 tv stations; all at the pop of a
button. My GE SuperRadio is tuned to one station.
bob
k5qwg
RHF
Consider the Read Profile of someone who Reads and Posts
to Rec.Radio.Shortwave - They are NOT your average Radio Listener.
Next consider the Listening Profile of someone who Buys a
GE Superadio to Listen to the Radio Every Day and All Night
and again - They are NOT your average Radio Listener.
Then consider the Listening Profile of someone who simply
owns a Car / Truck and Listens to the Radio in it while they
are in it Driving down the Road of Life - Now "They" ARE
your very average casual Radio Listener with :
* One-Eye-on-the-Road
* One-Ear-on-the-Radio
* One-Hand-on-the-Steering- Wheel
* Half a Brain Focused on Traffic
And with the other half of everything just plain doing
something else as they Cruise-Down-the-Road-of-Life !
well that is how i see it ~ RHF
RHF
When the Man with the Arithmetic
Meets the Man with the Reality . . .
The Man with Reality Wins [.]
In Reality whether you use your CCRadio
or I use my GE Superadio we each can only
Listent to One Radios Station at a Time on
Each Radio.
Using your Logic the Eton E1 could really
Blow Your Mind with 700 Station Memories !
I get by with two ears and one spearker connected to
one Radio tuned to One Station at a Time for my
simple Mind to Process and Understand and Enjoy ~ RHF
cuh...@webtv.net
cuhulin
cuh...@webtv.net
over yonder at the Goodwill store six tenths of a mile South (South is
always best) of my little doggys couch. GE Superadios = JUNK.
cuhulin
cuh...@webtv.net
cuhulin
cuh...@webtv.net
and George Noory Prove that evey night.
cuhulin
cuh...@webtv.net
him/herself in a mirror Noory.
Come on and buy these ccrane sangean super duper radios!
You can buy just as good or even better at the dollar stores.
This,I Know for a Fact.
cuhulin
cuh...@webtv.net
cuhulin
cuh...@webtv.net
cuhulin
cuh...@webtv.net
them,,,,, I don't care if you own an $80,000 super anything other kind
of radio.
cuhulin
Brenda Ann
"Bob Miller" <NOS...@neosoft.com> wrote in message
news:iipq521tipvocr7t7...@4ax.com...
13? Sure that's not 12 TV stations (if it's a VHF only receiver, that's all
you got)
Michael A. Terrell
There are receivers that pick up multiple frequencies and feed them to
the same speaker, but you'll likely never see one. (Or you should hope
that you never see one!) ;-)
--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.
Michael A. Terrell
Central Florida
dxAce
cuh...@webtv.net wrote:
> $75.00 for a GE Superadio.What kind of Hashish are you on?
I just checked the prices of SOLD Superadio II's on eBay and the average price
works out to $89.98.
I have seen them go as high as $175.00 or so.
dxAce
Michigan
USA
Bob Miller
wrote:
My bad arith. -- it gets stations 2 through 13 :-)
bob
k5qwg
David
wrote:
Open road truckers, Sweetheart. 100s of thousands of them.
David
wrote:
Like eBay reflects reality.
Any 1960 vintage 5 tube superhet will run circles around a
''Superradio''.
Bob Miller
wrote:
>BM,
>
>When the Man with the Arithmetic
>Meets the Man with the Reality . . .
>The Man with Reality Wins [.]
>
>In Reality whether you use your CCRadio
>or I use my GE Superadio we each can only
>Listent to One Radios Station at a Time on
>Each Radio.
My two ears multi-task -- hearing the nightly TV news, with 80 meter
chatter in the bg, monitoring 2 meter traffic, the computer streaming
Air America, the weather radio on alert; all happening simultaneously.
bob
k5qwg
David
wrote:
>My two ears multi-task -- hearing the nightly TV news, with 80 meter
>chatter in the bg, monitoring 2 meter traffic, the computer streaming
>Air America, the weather radio on alert; all happening simultaneously.
>
>bob
>k5qwg
>>
There's no news on the TV.
dxAce
David wrote:
> On Sun, 07 May 2006 08:19:11 -0400, dxAce <dx...@milestones.com>
> wrote:
>
> >
> >
> >cuh...@webtv.net wrote:
> >
> >> $75.00 for a GE Superadio.What kind of Hashish are you on?
> >
> >I just checked the prices of SOLD Superadio II's on eBay and the average price
> >works out to $89.98.
> >
> >I have seen them go as high as $175.00 or so.
>
> Like eBay reflects reality.
Rickets, you wouldn't know reality even if it used a machete to cut a path through
the dingleberry's and decided to spend the winter up your ass.
dxAce
Michigan
USA
cuh...@webtv.net
stations.
Gee whiz folks,lighten up.y'all know I dont really mean any disrespect
for any radios.
cuhulin
cuh...@webtv.net
concentrate on two tv stations on a radio at the same time.
cuhulin
John S.
How is a CC Radio (or any radio) similtaneously tuned to 5 FM, 5AM, 2
weather and 13 TV stations. To do so would require an equal number of
receiver circuits and speakers. And an unusual human mind able to
process an equal number of audio inputs all at the same time.
If on the other hand you are talking about push-button or dial accessed
memories, those are not used simultaneously. The radio in the CC Crane
radio,any car radio, most modern shortwave radios and even the
push-button radio in my old 1957 Ford all access stored stations
sequentially.
RHF
Yes there are 100s of Thousands of Truckers on the Open Road
but most are not Looking for AM/MW DX like many of the
GE Superadio Owners are . . .
Just like how many Open Road Trucker have a Shortwave Radio
in their trucks and Listen to it while they are Driving -Not Many !
Most likely many Truckers have an XM or Sirius Satellite Radio
and get what ever programming when ever everywhere anytime.
i will see you on down the road david - stay tuned ~ RHF
RHF
RHF
RHF
an equal number of audio inputs all at the same time."
Conductors of Symphony Orchestras - Do Just That ! ~ RHF
John S.
Given the repitition involved I there is a difference!!
cuh...@webtv.net
woman next door.Last year,she actually did ask me to sit with her that
night.But,I am too chicken.
cuhulin
cuh...@webtv.net
Live,movie.
cuhulin
Michael A. Terrell
Why? Some receivers use multiple L.O.s in the same band to receive
multiple channels at the same time, and its a simple task to mix
multiple audio sources, or CDs would sound even worse than they already
do. You don't need 24 speakers to listen to a 24 channel recording.
Michael A. Terrell
>
> On 6 May 2006 21:03:56 -0700, "RHF" <rhf-new...@pacbell.net>
> wrote:
>
> >BM,
> >
> >When the Man with the Arithmetic
> >Meets the Man with the Reality . . .
> >The Man with Reality Wins [.]
> >
> >In Reality whether you use your CCRadio
> >or I use my GE Superadio we each can only
> >Listent to One Radios Station at a Time on
> >Each Radio.
>
> My two ears multi-task -- hearing the nightly TV news, with 80 meter
> chatter in the bg, monitoring 2 meter traffic, the computer streaming
> Air America, the weather radio on alert; all happening simultaneously.
Try working as a broadcast engineer at a small TV station where you
run multiple cameras, the audio board, load film or tape and monitor the
TV and AM transmitter by yourself. I did this for a year, while in the
US army. I read Sci-Fi books and watched another TV station for
entertainment while doing all of the above while working from sign on to
sign off for at least seven days out of each two week period.
Right now I have three computers running, while listening to WSM over
the internet and I have a TV on in the corner.
Bob Miller
<mike.t...@earthlink.net> wrote:
>Bob Miller wrote:
>>
>> On 6 May 2006 21:03:56 -0700, "RHF" <rhf-new...@pacbell.net>
>> wrote:
>>
>> >BM,
>> >
>> >When the Man with the Arithmetic
>> >Meets the Man with the Reality . . .
>> >The Man with Reality Wins [.]
>> >
>> >In Reality whether you use your CCRadio
>> >or I use my GE Superadio we each can only
>> >Listent to One Radios Station at a Time on
>> >Each Radio.
>>
>> My two ears multi-task -- hearing the nightly TV news, with 80 meter
>> chatter in the bg, monitoring 2 meter traffic, the computer streaming
>> Air America, the weather radio on alert; all happening simultaneously.
>
>
> Try working as a broadcast engineer at a small TV station where you
>run multiple cameras, the audio board, load film or tape and monitor the
>TV and AM transmitter by yourself. I did this for a year, while in the
>US army. I read Sci-Fi books and watched another TV station for
>entertainment while doing all of the above while working from sign on to
>sign off for at least seven days out of each two week period.
I used to produce radio and TV commercials, and I was in awe of the
so-called "engineers" who could run a monster board, several tape
machines and assorted sweetening equipment, all without missing a
beat.
bob
k5qwg
David
<mike.t...@earthlink.net> wrote:
> Try working as a broadcast engineer at a small TV station where you
>run multiple cameras, the audio board, load film or tape and monitor the
>TV and AM transmitter by yourself. I did this for a year, while in the
>US army. I read Sci-Fi books and watched another TV station for
>entertainment while doing all of the above while working from sign on to
>sign off for at least seven days out of each two week period.
>
> Right now I have three computers running, while listening to WSM over
>the internet and I have a TV on in the corner.
>
>
>--
>Service to my country? Been there, Done that, and I've got my DD214 to
>prove it.
>Member of DAV #85.
>
>Michael A. Terrell
>Central Florida
Sounds like somebody's still in the US Army...
BTW: Sirius carries WSM.
David
wrote:
>On Sun, 07 May 2006 20:16:54 GMT, "Michael A. Terrell"
That would be me. Technical Director NABET Group 7A.
David
<mike.t...@earthlink.net> wrote:
>
> Why? Some receivers use multiple L.O.s in the same band to receive
>multiple channels at the same time, and its a simple task to mix
>multiple audio sources, or CDs would sound even worse than they already
>do. You don't need 24 speakers to listen to a 24 channel recording.
Huh?!?
Michael A. Terrell
Try producing and directing a live TV newscast while running two
cameras by hand in the studio at the same time. I got to where I could
switch the 16 mm projectors and not realize it because I was doing four
or five other things at the same time. Then I would have to jump and
run across the room to load and cue the next reel in time to switch
again. Even more fun was when one of the projectors refused to start and
you had to jump up, run across the room, push in the manual clutch and
give it a spin, switch the projector to local control, run around the
film change and switch the other projector to manual to stop it, then
return both to remote control. All of this took about four seconds, and
I still got complaints about sloppy switching when it happened. I could
splice and restart a broken 16 mm film in five seconds, flat.
nothermark
Hardly. The reason folks like the GE radio is that it has a tuned RF
stage to get good reception fed to a decent speaker so you get decent
sound. The 6 D cell batteries last days not hours a a sound level
that is usefull in a decent sized room. That's assuming you can't use
the power cord. The 5 tube superhet's were no better if as good for
reception but forget battery life. Most did not do FM.
cuh...@webtv.net
dollars.Dream on,you little diaper.
cuhulin
David
wrote:
An antenna connected directly to a hot tube mixer can be more
sensitive than a TRF front end. Sure you get images but you also can
get DAYTIME DX.
David
General Electric builds crap.
Stephanie Weil
Electronics' long-distance portable radio.
Never did much DX-ing with mine, since I modified it and used it as an
FM-SCA receiver.
Gave it away at a swap meet last year.
--
Stephanie Weil
New York City, NY
Michael Lawson
"Michael A. Terrell" <mike.t...@earthlink.net> wrote in message
news:445E5573...@earthlink.net...
Heh. I knew a guy who worked on CGI graphics in my
previous company who used to have a similar setup
in his cubicle (just swap the television for another
workstation). He used to quip, "It's not just a job,
it's a CAT scan."
--Mike L.
Michael A. Terrell
These days I repair computers, design web sites and read the
newsgroups at the same time. No cats allowed around here, though. :)
I do have this around the house from time to time:
http://home.earthlink.net/~mike.terrell/photos.html
Brenda Ann
"nothermark" <tr...@gnomex.cotse.net> wrote in message
news:4mdt52lv0447b82i4...@4ax.com...
Under normal daily use with a good listening level, I have gotten several
months use out of an SRII. They claim over 450 hours on a set of batteries.
I think that claim is based on zinc-carbon batteries.
BCBlazysusan
>FM-SCA receiver.
Stephanie,
just curious, did you ever hear anything interesting with the SCA mod?
clifto
> On Sun, 7 May 2006 22:32:33 -0500, cuh...@webtv.net wrote:
>>There isn't any G.E.radio in the World worth more than thirty
>>dollars.Dream on,you little diaper.
>>
They used to build some very sensitive radios. I still have a "transistor
radio" type GE AM radio that rivals anything I've seen for sensitivity.
I've played with modifying the AGC and it made it even more sensitive.
Biggest problem it has is the small analog dial; very hard to tune small
increments.
--
All relevant people are pertinent.
All rude people are impertinent.
Therefore, no rude people are relevant.
-- Solomon W. Golomb
David
>David wrote:
>> On Sun, 7 May 2006 22:32:33 -0500, cuh...@webtv.net wrote:
>>>There isn't any G.E.radio in the World worth more than thirty
>>>dollars.Dream on,you little diaper.
>>>
>> General Electric builds crap.
>
>They used to build some very sensitive radios. I still have a "transistor
>radio" type GE AM radio that rivals anything I've seen for sensitivity.
>I've played with modifying the AGC and it made it even more sensitive.
>Biggest problem it has is the small analog dial; very hard to tune small
>increments.
That was before Jack Welch and Six Sigma.
RHF
is a good chance that the Engines will be built by GE
- - - David fly, Fly. FLY Away !
David - FWIW - GE Radios were part of the GE Home
Electronics Products Division and was sold a long time
ago to Thomson Consumer Electronics Inc. {a French
owned Company} and "GE" is just a 'Brand Name'.
http://www.geappliances.com/electronics/
http://www.home-electronics.net/InterimPrivacy/
NOTE - That "RCA" Home Electronics Products are also
a Thomson Consumer Electronics Inc. 'Brand Name'
http://www.thomson.net/EN/Home/Products/ForYouAtHome.htm
http://www.rca.com/documents/terms_of_use.htm
IIRC- As far as a Corporation with Tangible Real
{Hard} Assets GE is better than MicroSoft - IMHO
gee - and now you know ~ RHF
|
|
|
/ \
-------x-------
cuh...@webtv.net
www.shortwavestore.com offers some G.E.Superadio III's for sale for
$69.00.Step right on up,Ladies and Gents,get yours at the Shortwave
Store.
I will pass.I own some old radios better than G.E.Superadio III.
cuhulin
cuh...@webtv.net
fantastic,,, some are no better than other cheap quality brand names of
Radios.
cuhulin
cuh...@webtv.net
of various brand names are quite sensitive.I own many,many of them.Tube
type radios too.
cuhulin
David
wrote:
>DaviD - Next time that you Fly in an Aeroplane there
>is a good chance that the Engines will be built by GE
>- - - David fly, Fly. FLY Away !
Kristal Klear
news:21475-44...@storefull-3254.bay.webtv.net:
> I will pass.I own some old radios better than G.E.Superadio III.
> cuhulin
Shhhhhhhhhhh....
You want them to plonk you?
sc
RHF
.
.
. .
David
wrote:
>DaviD - Most Aeroplane Accidents End On-the-Ground ~ RHF
> .
A hour before the plane crash the General Electric turbine in the
center engine landed in a corn field.
cuh...@webtv.net
Engines that have never failed,either in the Air or on the Ground?
Heck,I dont know.I dont know which are all of the companies nowdays
which build Aircraft Engines.I can think of a few of them though.I guess
I could look them up on the internet,but I can't see why I would want
to.Mechanical thingys do fail,sometimes,they are not perfect.I think
G.E.Aircraft Engines are A OK.
cuhulin
...................................................
In search of the Perfect Aircraft Engine which has a Lifetime
Guarantee,and I love Aircraft,but I dont like to Fly.God would have
given me Wings if I was meant to Fly.
..................................................