On Feb 18, 1:09*am, BCBlazysusan wrote:
On Feb 18, 1:35*am, RHF wrote:
On Feb 16, 4:02*am, BCBlazysusan wrote:
I'm almost embarrased to ask this question but I want to hear what
some of you all have to say.
I know the importance of grounding, I'm a grounding freak (when it
comes to the antennas), be it here at my QTH or in the vehicle. But I
have never actually grounded any of my receivers itself. By that I
mean I have never actually grounded the radio before at my home.
I did over the weekend and I am curious - - does this make a
noticeable difference on the receiving end? I don't know if it's just
been a good listening environment over the weekend or did my grounding
of the radio make the difference.
I have noticed a 'very' low noise floor (almost to nothing) on both
the shortwave bands, especially 60 meters and also on the BCB bands.
Luckily I live out in the country away from a lot of the rf problems
people have in the city and I can't believe that I could get the noise
floor even lower than it usually is. Just good conditions this weekend
or did the grounding of the radios actually help in this?
BCB LZS,
What you are looking for is better Signal-to-Noise
[S/N] Ratio from your Antenna & Ground System :
1 - Good * Sometimes the Signal Level will Improve
and the Noise Level may go down a little.
2 - Not-So-Good * Often the Signal Level will improve
and the Noise Level will also go up.
3 - Better * Then Again Sometimes the Signal Level
will be reduced some what and the Noise Level
will go down a lot.
4 - No Change * Nothing Changed {Oh Well}
*.
If between your Antennas and your Radio Shack you
are running Coax Cable and your Coax is Grounded :
Then 'effectively' the Radios connected to your
Antennas via the Coax are already Grounded TOO.
*.
The First Reason for a Radio Shack Ground and
Having Your Radios and Equipment Grounded IS
Electrical "Safety".
*.
Someone will most likely suggest that you use
a Ground Window or Single-Point-Ground for
your Radio Shack's Radios and Equipmenthttp://www.comm-omni.com/edcoweb/grndw.htmhttp://en.wikipedia.org/wik...
*.
Other will recommend that you "Bond" All
Your Grounds per the NEC.http://www.mikeholt.com/mojonewsarch...ounding-Part-1...
*.
-imho- An 8-Foot Ground Rod in the Earth as
close to your Radio Shack as possible and
"Bonded" to your House's Electrical System
is a good beginning for having a 'Safe' Radio
Shack. ~ RHF
*.
Alpha Delta DX-SWL Shortwave Sloper Antennahttp://www.alphadeltacom.com/pg7.htmlhttp://www.universal-radio.com/C...
-iirc- the DX-SWL Shortwave Sloper Antenna
does not use a Matching Transformer.http://groups.google.com/group/rec.r...ea0bc32528e305...
Shortwave Antenna Safety Tipshttp://www.universal-radio.com/CATALOG/sw_ant/safeswl.html
*.
hope this antenna & grounding info helps
- - - iane ~ RHF {pomkia}
Twain Harte, CA -USA-
*.
Are You Interested in building a better Shortwave Listening
(SWL) Antenna ? {SWL Group} =http://tinyurl.com/ogvcf
GoTo =http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
*.
RHF's Standard "Shortwave Radio Listener (SWL) Antennas Group"
Reference Message Signature-Line =http://tinyurl.com/25zbrghttp://groups.google.com/group/rec.radio.sho...
*.
* Remember 55.5% of Shortwave Radio Listening (SWL)
is the Shortwave Antenna =http://tinyurl.com/ogvcf
*.
RHF's Radio Shack in Twain Harte, California -USA-
SHACK INFO =http://tinyurl.com/2skmxm
Shortwave Radio / Receiver and SWL Antenna Info
*.
Shortwave Listener QSL Reports Newsgroup : SWL : INFOhttp://groups.google.com/group/shortwave-listener-qsl-reports/
*.
-= 6GZ4GB + 32UCPM + OGVCF + 25ZBRG + 2SKMXM =-
*.
*.- Hide quoted text -
- Show quoted text -
Something I read on one of those links in reference to antenna height,
it says the optimal height in 25ft. That was the first height I put it
at. But I noticed a real difference at 40 ft...it was quieter. I then
upped it to 45 ft. with no difference and finally to the 55ft. All I
know is something made the noise floor go even lower. It may have been
the height and the ground or a combination of the two. Kind of hard
for me to believe that an antenna at 25 ft. would receive as well as
one at 55 ft. but who knows.
WRT - DX-SWL Shortwave Sloper Antenna
? Is Your Antenna 'Sloping' ?
http://www.alphadeltacom.com/pg7.html
Top Starting Peak Height in Feet ___
and Bottom End Height in Feet ___