Episode #125 of the Stack Overflow podcast is here. We talk Tilde Club and mechanical keyboards. Listen now

Questions tagged [fsk]

Frequency Shift Keying - A digital transmission technique in which a "1" is represented by one frequency and a ")" by another. It is the digital equivalent of FM.

7 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
1
vote
0answers
114 views

Help decoding line code

I have collected a burst signal from a radio device using an RTL-SDR and gnuradio and demodulated the FSK, but am having trouble deciphering what the line code is. Signal is at 151.3MHz Here is the ...
1
vote
0answers
187 views

How to determine a Signal Generator's Marker (Event) output delay?

I am using an Agilent N5182B Signal Generator for modulating a 2-FSK waveform on a 160MHz RF carrier. For that, I am using a baseband waveform (I/Q mode), generated by a Matlab FSK modulator script. ...
0
votes
0answers
31 views

radio Link works with laptop but not with PC

I have a complicated issue. I set my HM-TRP radio modules to use: 117Khz receive bandwidth, 39Khz deviation frequency and 38Kbps air and data rate. The attached picture is my basic room setup for ...
0
votes
1answer
195 views

Build an FSK modulator using the HB100's transmitting signal

I want to use the HB100 to make an FSK modulation on a microwave signal. The reason why I use HB100 is that in this way the RF circuit is ready. I thought about doing an FSK modulator like the scheme ...
0
votes
0answers
160 views

Coherent FSK Modulation correlation coefficient derivation

FSK has a large bandwidth requirement and its minimum bandwidth is around \$4 B_T\$, where \$ B_T \$ is the bit rate. In a coherent FSK system the signals \$s_1(t)\$ and \$s_2(t)\$ representing bit ...
0
votes
0answers
232 views

FSK Bandpass Filters for 900 MHz

I'm attempting to design a basic FSK transceiver (architecture shown below) using only discrete components (transistors, diodes, resistors, etc). My idea was to separate the two binary frequency ...
0
votes
0answers
438 views

Filtering and Delay Compensation in Matlab and Simulink

I have built a FSK modulator and demodulator in Simulink. Everything is working fine except the received signal after the channel has short spikes, which are introducing a short pulses in the ...