Questions tagged [wspr]
The wspr tag has no usage guidance.
7
questions
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votes
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Can WSPR really track commercial aircraft? Has the veracity of this proposed technique been convincingly demonstrated?
60 Minutes Australia's recent video FINDING MH370: New breakthrough could finally solve missing flight mystery describe's research by Richard Godfrey which is said to be able to track the trajectory ...
- 521
3
votes
1
answer
236
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If WSPR can go further than FT8, why do I only see local WSPR signals?
I've been scanning through the bands using WSJT-X to pick up FT8 and WSPR. Using a VHF discone, I decode messages from nearly 10,000 km away, consistently, when listening for FT8. But when switching ...
- 163
4
votes
3
answers
80
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What kind of antenna for an automatic high bands monitoring station?
I would like to monitor NCDXF beacons, and WSPR. What kind of antenna would be good for reception in the bands of 6, 10, 12, 15, 17 and 20M?
Some antennas I considered:
A trapped dipole, with traps ...
- 1,159
3
votes
1
answer
111
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Output impedance of TAPR QRPi?
I'm a newly licensed amateur and have decided to start out by trying WSPR on a Raspberry Pi equipped with TAPR's 20m QRPi. The QRPi write-ups I've read always talk about long wire antennas but I'd ...
- 153
6
votes
3
answers
508
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Long range communication with just 1W of power?
Is it possible, and how can I setup communication between stations 1000km apart from each other by using just 1W of transmission power?
By communication, I mean:
It can be text based
It can be very ...
- 161
5
votes
1
answer
490
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HF/VHF antenna for high altitude balloon
I'm working on the design of a dual band transmitter for use on a high altitude balloon. I'll be transmitting on 2 meters and 20 meters (APRS and WSPR) with about 50 mW. To keep the weight to an ...
3
votes
3
answers
644
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WSPR RX dial frequency
I tried but failed to decode WSPR using Tecsun PL-600 receiver that tunes in 1KHz step. I heard tones with good SNR but cannot be decoded. So, I mis-set it somewhere.
Is it correct that transmission ...
- 562