ANTENNA
EH 160 mt
Tests
(3)
Now the situation is the
following:
1) vertical in my garden
2) EH on my roof (6 mt from ground, just two from my roof)
3) my friend Riccardo (IK7FMO) 50Km far to me with a 40 mt long sloper.
These are results during same QSO (2-3 June):
Call | Rst EH | Rst Vert. |
I2BBJ | 2-3 | 5 |
IK7FMO | 5 | 8 |
IZ3BGJ | on the noise | 3 |
all QSO on 160 SSB RX (transmiting there were the same differences) using a 20 dB attenuator;
Then 1.830 Mhz CW:
Call |
Rst EH | Rst Vert. |
IK6FWJ | 579 | 599 |
and finally other qso with local station (always 2 S point less than the
vertical)
Call | Rst EH | antenna in use |
I7GLO | 59 | Vert Butt. 40-80-160 mt |
IK7FMO | 59+ | Slooper |
IK7TAG | 59++ | Windom for 80mt (tuned in 160) |
Other qso on 07/06/2002 at 1.845 ssb (TX)
Call | Rst EH | Rst Vert. |
IK7FMO | 9 | 9+10 |
SV8CS | 9 | 9+10 / 9+15 |
Receiving
there were same differences:
Call | Rst EH | Rst Vert. |
IK7FMO | 9 | 9+10 |
SV8CS | 9+15 | 9+25 |
IK7JWY | 3 | 5 |
Other Qso on 08/06/2001
Call | Rst EH | Rst Vert. |
IK7YTT | 3 | 5 |
IK7WPG | 3 | 5 |
IZ7ANL | 1 | 5 |
I made other QSO and
test, but always the EH antenna lose 10 dB versus my short vertical;
I've tested the EH antenna both on my roof both on my garden (8 mt high)
but there were same results; the last thing to do was to put the EH higher on
the roof;
so i built a bracket as in picture.
Now my EH is on the roof at 10 mt from the ground.
73 de iz7ath, Talino Tribuzio