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2 votes
1 answer
363 views

Can I use an SDR to transmit on the ISM band without a license?

I would like to use my SDR to transmit arbitrary data. Can I freely transmit in the ISM bands without any license, as long as I abide by the regulations? My understanding is that I can transmit at up ...
Manuel Menzella's user avatar
0 votes
2 answers
132 views

Getting started with Radio design [closed]

For a while now, I have been exploring many RF, communication protocol and radio etc. I am kind of looking for a way where i can implement the software stack for a particular open Radio. Means like ...
Narashiman's user avatar
0 votes
4 answers
199 views

Building an FM transceiver

As an electronics hobbyist, I've already built a thing or two so this didn't seem like a complicated thing to do, but I was terribly mistaken. I wanted to build an FM modulated radio transceiver ...
transforman's user avatar
1 vote
2 answers
120 views

Signal Strength to ADC quantisation levels

According to the excellent site of AB4OJ, the Icom 7300 in summary has a 14bit analogue to digital converter with a 1.5 volt peak to peak input (LTC2208-14). I make this to be 91.5uV per quantisation ...
user202474's user avatar
1 vote
1 answer
556 views

Making my own radio transmitter

So I have recently been interested in Radio electronics, and I have been looking around to buy a HAM radio transmitter,but they tend to be very expensive (and you learn nothing by just buying it). So ...
Aten747's user avatar
  • 11
1 vote
3 answers
896 views

How to chose an IF, or how bad is zero-IF really?

In a superheterodyne receiver, what must one consider in order to chose an intermediate frequency? Specifically, I'm working on a radio telescope project. It is basically a superheterodyne receiver ...
hasep's user avatar
  • 124
2 votes
2 answers
217 views

Two signals alternately on the left and right of a frequency

I was listening to the WebSDR of Twente University, just outside the amateur band, and saw these signals. The x axis is frequency in kilohertz, the y axis is time, where the whole axis shown is about ...
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