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6 votes
1 answer
363 views

What kind of modulation is this?

3 votes
1 answer
100 views

Parameters needed to calculate inductor value to achieve proper phase delay?

2 votes
3 answers
586 views

Receiving BFSK on Kenwood TS2000 transceiver

3 votes
1 answer
67 views

How do I set the spectrum scope gain on the Icom IC-7300?

1 vote
2 answers
165 views

Can fanned/parallel endfed antennas be used to get higher gain in some directions?

2 votes
1 answer
36 views

ISS repeater on a Baofeng?

1 vote
2 answers
34 views

Phase detection accuracy with USRP N210 and CBX-40

7 votes
1 answer
65 views

What will the *amplitudes* of mixer products be?

3 votes
1 answer
50 views

Does ERP power depend on transmitter duty cycle?

1 vote
2 answers
78 views

Baofeng UV-5R ~ 800MHz transmission enabled

8 votes
1 answer
2k views

Can I use a Hawaiian call sign on the mainland?

6 votes
1 answer
210 views

Using shortwave communication, how difficult is it to transmit messages from the UK to the US?

2 votes
4 answers
587 views

I'm looking for an effective beam antenna for both 20 meters and 10 meters

4 votes
2 answers
715 views

Relations between bit rate, frequency deviation and channel filter bandwidth

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