I'm currently running the standard DVB-T desktop antenna on an RTL-SDR adapter and getting reasonable results considering it's indoor.
I've tried to make a few different antennas, including a collinear antenna with RG6 cable, but currently none are giving better results than the small DVB-T antenna (or even working at all).
My current attempt has 8 segments at 11.6 cm each, feeding the centre conductor between the insulation and braiding of the next segment. That seems to have gone well with no shorts across the length, but still not a great antenna.
The other bits consist of:
USB DVB-T/RTL-SDR adapter
MCX to Belling-Lee RF adapter (PAL TV RF) (because this is what I have to hand)
Coax
Belling-Lee to F-connector adapter
F-connector on the bottom of the antenna
The main questions are:
Is there anything wrong with this?
Should I have a λ/4 type whip on top?
Should the bottom of the whip be soldered to the braiding?
There's obviously something not right because even indoors I'd expect better performance than the desktop antenna.
I've tried to make a few different antennas, including a collinear antenna with RG6 cable, but currently none are giving better results than the small DVB-T antenna (or even working at all).
My current attempt has 8 segments at 11.6 cm each, feeding the centre conductor between the insulation and braiding of the next segment. That seems to have gone well with no shorts across the length, but still not a great antenna.
The other bits consist of:
USB DVB-T/RTL-SDR adapter
MCX to Belling-Lee RF adapter (PAL TV RF) (because this is what I have to hand)
Coax
Belling-Lee to F-connector adapter
F-connector on the bottom of the antenna
The main questions are:
Is there anything wrong with this?
Should I have a λ/4 type whip on top?
Should the bottom of the whip be soldered to the braiding?
There's obviously something not right because even indoors I'd expect better performance than the desktop antenna.