hotpaw2's user avatar
hotpaw2's user avatar
hotpaw2's user avatar
hotpaw2
  • Member for 13 years, 5 months
  • Last seen more than a month ago
35 votes
2 answers
6k views

How did 455 kHz end up being a commonly used IF (intermediate frequency)?

12 votes
3 answers
15k views

Generic free Verilog synthesis tools?

10 votes
2 answers
2k views

Hobby breadboard wiring guidelines to stay within legal RF/EMI limits?

8 votes
5 answers
5k views

Is passive GPS retransmission possible?

7 votes
2 answers
8k views

High resolution timer on the BeagleBone?

7 votes
1 answer
13k views

Bluetooth 4.0 vs. Bluetooth LE, is there a difference?

6 votes
7 answers
4k views

Amplification without transistors or tubes?

6 votes
2 answers
6k views

Why are NAND flash and NOR flash named using the terms NAND and NOR?

5 votes
2 answers
371 views

Toroid inductor correction factor

4 votes
2 answers
886 views

What causes flicker or 1/f noise?

4 votes
3 answers
12k views

easy to construct FM low-pass or band-pass filter

4 votes
3 answers
5k views

IR to audio converter (frequency and level)?

4 votes
2 answers
14k views

line-level audio into an iPhone headset jack?

4 votes
2 answers
5k views

Digital input to mobile phone headset port?

3 votes
1 answer
984 views

Data modulation over Bluetooth headset profile?

3 votes
4 answers
3k views

Solutions to fix LED light RFI/EMI?

2 votes
4 answers
248 views

Negative resistance in a regenerative radio receiver?

2 votes
4 answers
917 views

Low-voltage vacuum tube amplifier design

2 votes
2 answers
158 views

Variance in winding a toroid

2 votes
3 answers
3k views

Analog Telephone Frequency Response Curve

2 votes
3 answers
813 views

cheap sub uH inductance meter?

1 vote
0 answers
576 views

Circuit to drive a telegraph sounder?

1 vote
3 answers
290 views

Identification of common RFI/EMI sources?

1 vote
1 answer
367 views

Mobile phone TRS output to microcontroller digital input?

1 vote
1 answer
105 views

optical glow fiber for low-tech communication links?

1 vote
1 answer
139 views

Relationship between Smith chart and frequency response graph?

1 vote
2 answers
327 views

Accurate measurement of millivolt RMS?

1 vote
1 answer
92 views

low voltage radio frequency amplifier [closed]

0 votes
1 answer
98 views

Experimental low-pass filter construction using a NanoVNA?

0 votes
2 answers
70 views

Can RF power measurement be done using a temperature probe?