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Old February 8th 11, 10:03 PM posted to rec.radio.shortwave
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Default 60 Foot Random Wire Shortwave [SWL] Antenna ?

On Feb 8, 12:22*pm, D Peter Maus wrote:
On 2/8/11 11:06 , bpnjensen wrote:





On Feb 5, 3:35 pm, "D. Peter *wrote:


* * You do have a quite a bit of antenna, there. Verify that you've not
got too much. Look for images, indicating overload. A pad may be required.


FWIW, I have found that this new antenna, even before the unun is
grounded, works *extremely* well on almost all bands for elimination
of electrical hash noise with my DX-Ultra and MFJ-1026. *I can lop off
4-8 S-Units of hash noise while scarcely touching the desired signal,
leaving otherwise obscured signals either in the clear or almost so.
It has brought otherwise undetectable signals to easy copy. *Right
now, I'm wishing I had room for two of them - I could silence 60 and
90 meters background with them.


Maybe I'll take down the DX-Ultra and put up another one of these.
I'd hate to lose the DX-U (it's great on everything 41 meters and up),
but two matched antennae on the MFJ-1026 would work wonders, I think.


Bruce


* *Excellent. This is good to hear. Congratulations.- Hide quoted text -

- Show quoted text -


Without counting all my chickens before they hatch, I will say I am
very pleased - and grateful to you, Peter, and the other folks
including Roy, Dave, Kevin, MII and others who have chimed in with
their help and advice. Thanks!
  #32   Report Post  
Old February 8th 11, 10:39 PM posted to rec.radio.shortwave
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Posts: 2,027
Default 60 Foot Random Wire Shortwave [SWL] Antenna ?

On Feb 8, 2:27*pm, D Peter Maus wrote:
On 2/8/11 16:03 , bpnjensen wrote:





On Feb 8, 12:22 pm, D Peter *wrote:
On 2/8/11 11:06 , bpnjensen wrote:


On Feb 5, 3:35 pm, "D. Peter * *wrote:


* * *You do have a quite a bit of antenna, there. Verify that you've not
got too much. Look for images, indicating overload. A pad may be required.


FWIW, I have found that this new antenna, even before the unun is
grounded, works *extremely* well on almost all bands for elimination
of electrical hash noise with my DX-Ultra and MFJ-1026. *I can lop off
4-8 S-Units of hash noise while scarcely touching the desired signal,
leaving otherwise obscured signals either in the clear or almost so.
It has brought otherwise undetectable signals to easy copy. *Right
now, I'm wishing I had room for two of them - I could silence 60 and
90 meters background with them.


Maybe I'll take down the DX-Ultra and put up another one of these.
I'd hate to lose the DX-U (it's great on everything 41 meters and up),
but two matched antennae on the MFJ-1026 would work wonders, I think.


Bruce


* * Excellent. This is good to hear. Congratulations.- Hide quoted text -


- Show quoted text -


Without counting all my chickens before they hatch, I will say I am
very pleased - and grateful to you, Peter, and the other folks
including Roy, Dave, Kevin, MII and others who have chimed in with
their help and advice. *Thanks!


* *Always glad to help in what marginal way I may, Bruce.

* *If you've had THAT kind of noise reduction, you're going to enjoy a
whole new world of listening.

* *I know you've mentioned it before, but I've had lunch since
then...which receiver are you feeding with this?- Hide quoted text -

- Show quoted text -


LOL! Three of them - Icom R75, Allied SX-190 and a DX-160.
  #33   Report Post  
Old February 8th 11, 10:42 PM posted to rec.radio.shortwave
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First recorded activity by RadioBanter: Mar 2010
Posts: 665
Default 60 Foot Random Wire Shortwave [SWL] Antenna ?

On 2/8/11 16:39 , bpnjensen wrote:
On Feb 8, 2:27 pm, D Peter wrote:
On 2/8/11 16:03 , bpnjensen wrote:





On Feb 8, 12:22 pm, D Peter wrote:
On 2/8/11 11:06 , bpnjensen wrote:


On Feb 5, 3:35 pm, "D. Peter wrote:


You do have a quite a bit of antenna, there. Verify that you've not
got too much. Look for images, indicating overload. A pad may be required.


FWIW, I have found that this new antenna, even before the unun is
grounded, works *extremely* well on almost all bands for elimination
of electrical hash noise with my DX-Ultra and MFJ-1026. I can lop off
4-8 S-Units of hash noise while scarcely touching the desired signal,
leaving otherwise obscured signals either in the clear or almost so.
It has brought otherwise undetectable signals to easy copy. Right
now, I'm wishing I had room for two of them - I could silence 60 and
90 meters background with them.


Maybe I'll take down the DX-Ultra and put up another one of these.
I'd hate to lose the DX-U (it's great on everything 41 meters and up),
but two matched antennae on the MFJ-1026 would work wonders, I think.


Bruce


Excellent. This is good to hear. Congratulations.- Hide quoted text -


- Show quoted text -


Without counting all my chickens before they hatch, I will say I am
very pleased - and grateful to you, Peter, and the other folks
including Roy, Dave, Kevin, MII and others who have chimed in with
their help and advice. Thanks!


Always glad to help in what marginal way I may, Bruce.

If you've had THAT kind of noise reduction, you're going to enjoy a
whole new world of listening.

I know you've mentioned it before, but I've had lunch since
then...which receiver are you feeding with this?- Hide quoted text -

- Show quoted text -


LOL! Three of them - Icom R75, Allied SX-190 and a DX-160.


Oh, that's right...you discussed that SX-190 at some length. Duh...

And I remember being envious because of it.

So, how does it handle now that you've got a reasonably quiet
antenna on the front end?

And how does it compare to R75?




  #34   Report Post  
Old February 8th 11, 10:49 PM posted to rec.radio.shortwave
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First recorded activity by RadioBanter: Jul 2006
Posts: 2,027
Default 60 Foot Random Wire Shortwave [SWL] Antenna ?

On Feb 8, 2:42*pm, "D. Peter Maus" wrote:
On 2/8/11 16:39 , bpnjensen wrote:





On Feb 8, 2:27 pm, D Peter *wrote:
On 2/8/11 16:03 , bpnjensen wrote:


On Feb 8, 12:22 pm, D Peter * *wrote:
On 2/8/11 11:06 , bpnjensen wrote:


On Feb 5, 3:35 pm, "D. Peter * * *wrote:


* * * You do have a quite a bit of antenna, there. Verify that you've not
got too much. Look for images, indicating overload. A pad may be required.


FWIW, I have found that this new antenna, even before the unun is
grounded, works *extremely* well on almost all bands for elimination
of electrical hash noise with my DX-Ultra and MFJ-1026. *I can lop off
4-8 S-Units of hash noise while scarcely touching the desired signal,
leaving otherwise obscured signals either in the clear or almost so..
It has brought otherwise undetectable signals to easy copy. *Right
now, I'm wishing I had room for two of them - I could silence 60 and
90 meters background with them.


Maybe I'll take down the DX-Ultra and put up another one of these.
I'd hate to lose the DX-U (it's great on everything 41 meters and up),
but two matched antennae on the MFJ-1026 would work wonders, I think.


Bruce


* * *Excellent. This is good to hear. Congratulations.- Hide quoted text -


- Show quoted text -


Without counting all my chickens before they hatch, I will say I am
very pleased - and grateful to you, Peter, and the other folks
including Roy, Dave, Kevin, MII and others who have chimed in with
their help and advice. *Thanks!


* * Always glad to help in what marginal way I may, Bruce.


* * If you've had THAT kind of noise reduction, you're going to enjoy a
whole new world of listening.


* * I know you've mentioned it before, but I've had lunch since
then...which receiver are you feeding with this?- Hide quoted text -


- Show quoted text -


LOL! *Three of them - Icom R75, Allied SX-190 and a DX-160.


* *Oh, that's right...you discussed that SX-190 at some length. Duh....

* *And I remember being envious because of it.

* *So, how does it handle now that you've got a reasonably quiet
antenna on the front end?

* *And how does it compare to R75?- Hide quoted text -

- Show quoted text -


The R75 is considerably more sensitive and/or with a better s/n ratio,
given the same antenna system. Things are fairly audible on the R75
that are in the hash on the SX-190. Still, the SX-190 is a bunch of
fun. For a bad hum, I need to get either a capacitor replacement on
the power supply, or figure out the wiring on the 12VDC plug (an oddly
configured 4-prong socket) and see if that does the trick. Also might
be some bad caps in the audio chain.
  #35   Report Post  
Old February 8th 11, 11:18 PM posted to rec.radio.shortwave
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First recorded activity by RadioBanter: Mar 2010
Posts: 665
Default 60 Foot Random Wire Shortwave [SWL] Antenna ?

On 2/8/11 16:49 , bpnjensen wrote:
On Feb 8, 2:42 pm, "D. Peter wrote:
On 2/8/11 16:39 , bpnjensen wrote:





On Feb 8, 2:27 pm, D Peter wrote:
On 2/8/11 16:03 , bpnjensen wrote:


On Feb 8, 12:22 pm, D Peter wrote:
On 2/8/11 11:06 , bpnjensen wrote:


On Feb 5, 3:35 pm, "D. Peter wrote:


You do have a quite a bit of antenna, there. Verify that you've not
got too much. Look for images, indicating overload. A pad may be required.


FWIW, I have found that this new antenna, even before the unun is
grounded, works *extremely* well on almost all bands for elimination
of electrical hash noise with my DX-Ultra and MFJ-1026. I can lop off
4-8 S-Units of hash noise while scarcely touching the desired signal,
leaving otherwise obscured signals either in the clear or almost so.
It has brought otherwise undetectable signals to easy copy. Right
now, I'm wishing I had room for two of them - I could silence 60 and
90 meters background with them.


Maybe I'll take down the DX-Ultra and put up another one of these.
I'd hate to lose the DX-U (it's great on everything 41 meters and up),
but two matched antennae on the MFJ-1026 would work wonders, I think.


Bruce


Excellent. This is good to hear. Congratulations.- Hide quoted text -


- Show quoted text -


Without counting all my chickens before they hatch, I will say I am
very pleased - and grateful to you, Peter, and the other folks
including Roy, Dave, Kevin, MII and others who have chimed in with
their help and advice. Thanks!


Always glad to help in what marginal way I may, Bruce.


If you've had THAT kind of noise reduction, you're going to enjoy a
whole new world of listening.


I know you've mentioned it before, but I've had lunch since
then...which receiver are you feeding with this?- Hide quoted text -


- Show quoted text -


LOL! Three of them - Icom R75, Allied SX-190 and a DX-160.


Oh, that's right...you discussed that SX-190 at some length. Duh...

And I remember being envious because of it.

So, how does it handle now that you've got a reasonably quiet
antenna on the front end?

And how does it compare to R75?- Hide quoted text -

- Show quoted text -


The R75 is considerably more sensitive and/or with a better s/n ratio,
given the same antenna system. Things are fairly audible on the R75
that are in the hash on the SX-190. Still, the SX-190 is a bunch of
fun. For a bad hum, I need to get either a capacitor replacement on
the power supply, or figure out the wiring on the 12VDC plug (an oddly
configured 4-prong socket) and see if that does the trick. Also might
be some bad caps in the audio chain.



Given its age, a few questionable caps should be expected. A
couple of hours with a fine soldering iron will do wonders.




  #36   Report Post  
Old February 9th 11, 01:42 AM posted to rec.radio.shortwave
RHF RHF is offline
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First recorded activity by RadioBanter: Jun 2006
Posts: 8,652
Default 60 Foot Random Wire Shortwave [SWL] Antenna ?

On Feb 8, 2:39*pm, bpnjensen wrote:
On Feb 8, 2:27*pm, D Peter Maus wrote:



On 2/8/11 16:03 , bpnjensen wrote:


On Feb 8, 12:22 pm, D Peter *wrote:
On 2/8/11 11:06 , bpnjensen wrote:


On Feb 5, 3:35 pm, "D. Peter * *wrote:


* * *You do have a quite a bit of antenna, there. Verify that you've not
got too much. Look for images, indicating overload. A pad may be required.


FWIW, I have found that this new antenna, even before the unun is
grounded, works *extremely* well on almost all bands for elimination
of electrical hash noise with my DX-Ultra and MFJ-1026. *I can lop off
4-8 S-Units of hash noise while scarcely touching the desired signal,
leaving otherwise obscured signals either in the clear or almost so..
It has brought otherwise undetectable signals to easy copy. *Right
now, I'm wishing I had room for two of them - I could silence 60 and
90 meters background with them.


Maybe I'll take down the DX-Ultra and put up another one of these.
I'd hate to lose the DX-U (it's great on everything 41 meters and up),
but two matched antennae on the MFJ-1026 would work wonders, I think.


Bruce


* * Excellent. This is good to hear. Congratulations.- Hide quoted text -


- Show quoted text -


Without counting all my chickens before they hatch, I will say I am
very pleased - and grateful to you, Peter, and the other folks
including Roy, Dave, Kevin, MII and others who have chimed in with
their help and advice. *Thanks!


* *Always glad to help in what marginal way I may, Bruce.


* *If you've had THAT kind of noise reduction, you're going to enjoy a
whole new world of listening.


* *I know you've mentioned it before, but I've had lunch since
then...which receiver are you feeding with this?- Hide quoted text -


- Show quoted text -


LOL! *Three of them - Icom R75, Allied SX-190 and a DX-160.


-fwiw- The "Allied AX/SX-190 Receiver"
a 'Resource Collection' Compliments of Mark Rehorst
http://deane.bio.ucalgary.ca/Allied-...Info-Oct02.pdf
  #37   Report Post  
Old February 9th 11, 04:22 AM posted to rec.radio.shortwave
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Posts: 665
Default 60 Foot Random Wire Shortwave [SWL] Antenna ?

On 2/8/11 21:44 , bpnjensen wrote:
On Feb 8, 7:28 pm, wrote:
On Feb 8, 5:49 pm, wrote:









On Feb 8, 2:42 pm, "D. Peter wrote:


On 2/8/11 16:39 , bpnjensen wrote:


On Feb 8, 2:27 pm, D Peter wrote:
On 2/8/11 16:03 , bpnjensen wrote:


On Feb 8, 12:22 pm, D Peter wrote:
On 2/8/11 11:06 , bpnjensen wrote:


On Feb 5, 3:35 pm, "D. Peter wrote:


You do have a quite a bit of antenna, there. Verify that you've not
got too much. Look for images, indicating overload. A pad may be required.


FWIW, I have found that this new antenna, even before the unun is
grounded, works *extremely* well on almost all bands for elimination
of electrical hash noise with my DX-Ultra and MFJ-1026. I can lop off
4-8 S-Units of hash noise while scarcely touching the desired signal,
leaving otherwise obscured signals either in the clear or almost so.
It has brought otherwise undetectable signals to easy copy. Right
now, I'm wishing I had room for two of them - I could silence 60 and
90 meters background with them.


Maybe I'll take down the DX-Ultra and put up another one of these.
I'd hate to lose the DX-U (it's great on everything 41 meters and up),
but two matched antennae on the MFJ-1026 would work wonders, I think.


Bruce


Excellent. This is good to hear. Congratulations.- Hide quoted text -


- Show quoted text -


Without counting all my chickens before they hatch, I will say I am
very pleased - and grateful to you, Peter, and the other folks
including Roy, Dave, Kevin, MII and others who have chimed in with
their help and advice. Thanks!


Always glad to help in what marginal way I may, Bruce.


If you've had THAT kind of noise reduction, you're going to enjoy a
whole new world of listening.


I know you've mentioned it before, but I've had lunch since
then...which receiver are you feeding with this?- Hide quoted text -


- Show quoted text -


LOL! Three of them - Icom R75, Allied SX-190 and a DX-160.


Oh, that's right...you discussed that SX-190 at some length. Duh...


And I remember being envious because of it.


So, how does it handle now that you've got a reasonably quiet
antenna on the front end?


And how does it compare to R75?- Hide quoted text -


- Show quoted text -


The R75 is considerably more sensitive and/or with a better s/n ratio,
given the same antenna system. Things are fairly audible on the R75
that are in the hash on the SX-190. Still, the SX-190 is a bunch of
fun. For a bad hum, I need to get either a capacitor replacement on
the power supply, or figure out the wiring on the 12VDC plug (an oddly
configured 4-prong socket) and see if that does the trick. Also might
be some bad caps in the audio chain.- Hide quoted text -


- Show quoted text -


Is it a regular AC 60 Hz hum ?


It sure sounds like it - present at all audio volume levels - but when
the volume is turned up to maximum, at about 3/4 volume the hum gets
louder - that's why I think it may be a combination.




Sufficient power supply ripple alone would keep the RF stages from
working, and the AF stages from amplifying an intelligible signal. It
would also be relatively constant in amplitude.

But a moderate amount of power supply ripple would produce an audible
hum regardless of volume setting, and because the ripple is impressed on
the preamp stages and at various locations throughout the receiver there
would be a variation in audible hum with volume control.

Start by replacing the power supply capacitors. And then replace all
the bypass and decoupling caps. And then the interstage caps.
Eventually, all the electrolytics will go. You'll be amazed at the
difference.



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Old February 10th 11, 02:15 PM posted to rec.radio.shortwave
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Default WHY ? Does The SWL "Sloper" Antenna Have A 'Down-Wire' ?

On Feb 10, 5:25*am, dave wrote:

- - On 02/09/2011 07:58 PM, RHF wrote:
- - .
- - Somewhere I remember reading that a SWL'er* had
- - taken a longer piece of Insulated Stranded Copper
- - Wire and repaced the shorter Down-Wire of his
- - "Sloper" Antenna. *Routed/Run this Insulated Wire
- - down the Side of the House and out along the ground
- - under the 'Lay' of the Sloping Antenna Wire Element.
- - * Claim that his produced the best Signals and least
- - noise and was better than grounding the Down-Wire
- - at the Side of the House. {I have not tried that yet}
- - .

- SWLers claim a lot of bogus things.

Dave,

IMHO : More Often Then Not The SWL'ers State The
Simple Honest Factual Truth As They Hear* It )

* Their Own Personal Subjective Experience
{What Appears To Work For Them}
-versus- Objective Measured Evidence and Advertising Hype

What I have found out over the years Dave is
what Works for one Shortwave Radio Listener
[SWL] in one location does not necessarily
translate and work for the guy : down-the-street
over-the-hill; down-on-the-3rd-floor; etc etc etc...

The Is NO Single Right Way {One Size Does NOT Fit All}

Generally I take people at their Word and their
Claimed Results : Look just this last few weeks
BpnJ built his own new home brewed SWL
Antenna and says it produces a better Signal
and Lower Noise than his Commercial DX-Ultra
http://www.universal-radio.com/catalog/sw_ant/3377.html
Professionally Engineering and Factory Made
SWL Antenna.
http://groups.google.com/group/rec.r...efdc4caaa8ceff
Simply Happy That BpnJ is Getting Better Results
  #39   Report Post  
Old February 10th 11, 02:22 PM posted to rec.radio.shortwave
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Default WHY ? Does The SWL "Sloper" Antenna Have A 'Down-Wire' ?

On Feb 9, 7:58*pm, RHF wrote:
On Feb 6, 3:15*pm, dave wrote:



On 02/06/2011 03:04 PM, RHF wrote:


On Feb 6, 9:10 am, *wrote:
On Feb 6, 2:32 am, *wrote:
.


- Otherwise, I would have put the whole thing up high,
- or possibly sloped with the unun end down.


- - Better would be to have the Feed-in-Line running
- - 4"~6" below the Ground directly under the Wire
- - Antenna Element all the way out to the UnUn and
- - Ground Rod; with the Antenna Element Sloping-Up
- - back over the 'lay' of the Feed-in-Line.
- -
- - ~ RHF


- Why is the alignment important?


BpnJ : ? Alignment = Lay-Out = By-Design !


Many Types and Configurations of "Sloper" Antennas
http://groups.google.com/group/rec.r...7a96ab218b8103


NOTE : The "Sloper" Antenna normally needs a better
more consistent Earthen Ground under it than an
Elevated Horizontal "Flat" Wire Antenna.
* The "Sloper" Antenna is more of a 'Ground Reflective'
Aerial
* * The Elevated Horizontal "Flat" Wire Antenna is more
of a 'Free Space' Aerial. {Higher Up and Away from the
Earth 'Ground'}
* .


The sloper's a vertical and needs a bottom half. Grounds work better 6
feet in the air than 6 inches below the earth.


- - All antennas are dipoles.

Dave you did not address the Question :
WHY ? Does The SWL "Sloper" Antenna Have A 'Down-Wire' ?

Dave : ? Care to Comment ?
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