Questions tagged [wspr]
The wspr tag has no usage guidance.
4
questions
2
votes
1answer
57 views
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 ...
6
votes
3answers
205 views
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 ...
5
votes
1answer
344 views
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
2answers
449 views
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 ...
