On Jul 7, 11:08*am, D Peter Maus wrote:
RHF wrote:
On Jul 6, 3:41 pm, D Peter Maus wrote:
-
- Finally got this antenna installed more permanently, in *a quiet
area
- of the yard. Been using it basically leaning in a corner of the
garage.
- Now, it's out, it's elevated, and it's in the clear.
-
- * * * * Results?
-
- * * * * Astonishing.
-
- This antenna is a helically wound coil, with 90/10 vertical
- to horizontal polarization. Noise stops being an issue.
- Polarization fading not an issue.
- Selective fading is still a PITA.
-
- I've not measured the noise floor, yet, but it's so much lower
- than the Eavesdropper, or the random wire, that I had to check
- to see if the antenna was connected.
-
- Output is lower than conventional antennae---it is only 7 feet
- in length, after all---but the noise is so much lower, I can
- actually hear stations on the MTA, that I can't on the
- Eavesdropper. A preamp is nice, but not necessary.
- Most receivers do, indeed, have enough gain to
- overcome the lower signal strength.
-
- Electrical noise resistance is pretty amazing, as well.
- No popping. No clicking. No buzzing.
- The noise from my T-1 router is still an issue...even out
- in the yard..but only a few spots on the bands are
- really trouble....3850 and it's multiples.
-
- I can actually hear WLS for the first time in a couple of years.
-
- Comparing the MTA on a Fanfare FT100 tuner with a
- McKay Dymek DA-5 shielded AM antenna on a Fanfare
- FT100 tuner, MTA produces lower signal output, but about
- the same noise floor. On a comm receiver, or Sansui Tu-777,
- there is an improvement in listenability with the MTA over
- the DA-5.
-
- There are some noise sources in my house that need
- to be addressed. *I'll get to those as I can. And there is
- still that IBOC has that I've not been able to null out.
- But, despite, performance is noticeably improved.
-
- This antenna needs to work with a good ground.
- Currently only using the cold waterpipe running under
- the house (copper, 45' of it), and the ground rod at the
- foot of the garage. I'll connect it to the ground system
- out in the yard when I get a new strap.
-
- Just over $259 installed.
-
- Worth it.
-
- Antenna system: MTA into Stridsberg active splitter.
-
- Receivers:
- Lowe HF-150
- AR-7030+
- Ten-Tec RX-350
- Drake R8A
- Drake SW8
- Fanfare FT100
- Halli S-53A
- And one draft pick to be named later.
-
- memberfdic.

DPM - Nice to Know that the RF Systems "MTA"
[Magnetic Transfer Antenna[ is working well for you. ~ RHF
http://www.universal-radio.com/catalog/sw_ant/3368.html
AM/Medium Wave and Shortwave Antenna 500 kHz~30 MHz
http://www.rf-systems.nl/pdf/mt.pdf

1 - SWLers - Two Important Things To Do With Any Active Antennas
are . . .
2 - http://groups.google.com/group/rec.r...c057920e20ac0c
3 - They Work Well for Small Low Noise Passive Antennas Too !

-*This is a passive antenna. No active components.

DPM - Hey you got that right
+ That is what I wrote in Line 3 ~ RHF

Placement + Grounding + Tip + Note