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Old July 12th 08, 08:25 AM posted to rec.radio.shortwave
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Posts: 198
Default Interesting thought/question

I think I know the answer to this and I could just try it and find out
on my own- but this is easier and funner to ask you guys. ;-) If I
were sitting out in my yard in the general vicinity of my Alpha Delta
DX sloper and had for sake of discussion my DX398 could I drop my
little coil (coupler) over my whip antenna and clip say a 10 ft. lead
directly to any part of the sloper? Would I receive the full benefit
of the sloper this way?

Just thought about that the other day. Curious minds want to know.
TIA
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Old July 12th 08, 09:08 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 Interesting thought/question

On Jul 12, 12:25*am, BCBlazysusan wrote:
-
- I think I know the answer to this and I could just try it
- and find out on my own- but this is easier and funner
- to ask you guys. ;-)
-
-*If I were sitting out in my yard in the general vicinity of
- my Alpha Delta DX sloper and had for sake of discussion
- my DX398 could I drop my little coil (coupler) over my
- whip antenna and clip say a 10 ft. lead directly to any
- part of the sloper? Would I receive the full benefit of the
- sloper this way?
-
- Just thought about that the other day.
- Curious minds want to know.
- TIA

BCB LzSn,

Full Benefit not likely : some benefit without a doubt.

Alpha Delta DX-SWL Sloper Antenna is 'optimized'
at the feed-point at 50 Ohms to be connected via
a Coax Cable feed-in-line to a Radio/Receiver with
a LO-Z {50 Ohm} External Antenna Input.
http://www.alphadeltacom.com/pg7.html
http://www.rys.nl/Antennes/Alpha%20Delta%20DX-SWL-S.htm
http://www.universal-radio.com/catalog/sw_ant/0799.html

Connecting the Alpha Delta DX-SWL Sloper Antenna
in this manner would result in gaining the Full Benefit
from the Antenna to the Radio.
http://www.alphadeltacom.com/dxswlii.htm
http://www.universal-radio.com/catal...nt/0799om.html

Tapping a 10 Foot Wire on to any point of the Alpha Delta
DX-SWL Sloper Antenna's 60 Foot Wire Antenna Element
'modifies' the original Wire Antenna Element and your new
'connections' feed-point impedence is unknown.

The Coil around the Whip Antenna of the RadioShack DX-398
/ Sangean ATS-909 Radio will provide some inductive coupling.
http://www.eham.net/reviews/detail/542
http://www.mwcircle.org/res-receiver-sangeanats909.htm
http://www.sangean.com/product.php?m...909&prod_id=10

Alternative Hook-Up :
The better approach might be to take a 12~15 Feet piece
of Insulated Hook-Up Wire and Wrap several 1" Turns around
One Foot of the Alpha Delta DX-SWL Sloper Antenna's Wire
Antenna Element. Take the other End of the Wire and Clip
it to the collapsed Whip Antenna of the DX-398 Radio.
Resulting in a longer Whip {Wire} Antenna that is Inductively
Coupled to the Larger External Antenna.

NOTE - This would basically leave the Alpha Delta DX-SWL
Sloper Antenna un-modified for use with the Radio/Receiver
it is presently connected to.

hope this helps - iane ~ RHF
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Old July 20th 08, 10:58 AM posted to rec.radio.shortwave
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First recorded activity by RadioBanter: Dec 2007
Posts: 198
Default Interesting thought/question

On Jul 12, 4:08*am, RHF wrote:
On Jul 12, 12:25*am, BCBlazysusan wrote:
-
- I think I know the answer to this and I could just try it
- and find out on my own- but this is easier and funner
- to ask you guys. ;-)
-
-*If I were sitting out in my yard in the general vicinity of
- my Alpha Delta DX sloper and had for sake of discussion
- my DX398 could I drop my little coil (coupler) over my
- whip antenna and clip say a 10 ft. lead directly to any
- part of the sloper? Would I receive the full benefit of the
- sloper this way?
-
- Just thought about that the other day.
- Curious minds want to know.
- TIA

BCB LzSn,

Full Benefit not likely : some benefit without a doubt.

Alpha Delta DX-SWL Sloper Antenna is 'optimized'
at the feed-point at 50 Ohms to be connected via
a Coax Cable feed-in-line to a Radio/Receiver with
a LO-Z {50 Ohm} External Antenna Input.http://www.alphadeltacom.com/pg7.htm..._ant/0799.html

Connecting the Alpha Delta DX-SWL Sloper Antenna
in this manner would result in gaining the Full Benefit
from the Antenna to the Radio.http://www.alphadeltacom.com/dxswlii...nt/0799om.html

Tapping a 10 Foot Wire on to any point of the Alpha Delta
DX-SWL Sloper Antenna's 60 Foot Wire Antenna Element
'modifies' the original Wire Antenna Element and your new
'connections' feed-point impedence is unknown.

The Coil around the Whip Antenna of the RadioShack DX-398
/ Sangean ATS-909 Radio will provide some inductive coupling.http://www.eham.net/reviews/detail/5...909&prod_id=10

Alternative Hook-Up :
The better approach might be to take a 12~15 Feet piece
of Insulated Hook-Up Wire and Wrap several 1" Turns around
One Foot of the Alpha Delta DX-SWL Sloper Antenna's Wire
Antenna Element. *Take the other End of the Wire and Clip
it to the collapsed Whip Antenna of the DX-398 Radio.
Resulting in a longer Whip {Wire} Antenna that is Inductively
Coupled to the Larger External Antenna.

NOTE - This would basically leave the Alpha Delta DX-SWL
Sloper Antenna un-modified for use with the Radio/Receiver
it is presently connected to.

hope this helps - iane ~ RHF
*.


Appreciate the response.
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