Hello Andy,
How is this possible? Your Loop points to SE, my loop also points to
SE. But we are not in one line. Actually it would be best for us if our
loops would point to NE.
But i can receive you at -16 dB SNR in WSPR with 1 mW ERP ??
73, Stefan
Am 27.07.2015 15:18, schrieb F6CNI - Andy - JN19QB:
Hi
to all.
This
evening, I’ll transmit to test a single turn loop on MF.
- 1 Watt HF TX ;
- Mode WSPR 2 and perhaps also OP 8
- Loop description :
- Vertical position, top at 11 meters, bottom at 1 meters
over ground ;
- Each side wire is 7 meters long ;
- One single turn copper wire 10 mm diameter ;
- Maximun lobe NW / SE. Note : at 600 km, the front / side
lobe is about 6 dB ;
- Impedance 0.21 - 113 j ;
- Current wire 2.0 Amperes for 1 Watt output TX ;
- Top loading using a 3C90 tore isolated transformer ;
- Base tuning with a variable in parallel with a fixe
capacitor. Total needs around 3000 pF of total capacitance ;
- 50 Ohms coaxial to the TX ;
- Minimum SWR at TX when the CV is well tuned : below 1.3 /
1.
Best
73.
Andy. F6CNI
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