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glen_geek
  • Member for 6 years, 2 months
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8 votes

Why are an antenna’s nulls sharper than its lobes?

6 votes
Accepted

How to effectively test and interpret the "working range" of a ferrite core with a signal analyzer?

6 votes
Accepted

Really a Class C design?

5 votes
Accepted

What are these extra wires coming out of my ferrite rod antenna

5 votes
Accepted

How to design a Local Oscillator for a radio receiver?

4 votes
Accepted

How to properly simulate a crystal filter being pulled?

4 votes

How to reduce VFO sensitivity to the hand capacitance?

4 votes
Accepted

Are there any terrestrial timecode signals receivable in Boston Massachusetts?

3 votes

How important is the impedance and resonance of a receive antenna?

3 votes
Accepted

What would a "crystal mixer" have been in an 1960's radio telescope at 960 MHz?

3 votes

60kHz WWVB receiver help

3 votes
Accepted

Given that transmit "chirp" is mainly thermal related, what parts would need to be temperature regulated to limit chirp?

2 votes

Need some help to design a DIY MW Radio receiver

2 votes

14dB insertion loss for bandpass filter acceptable?

2 votes

What is the difference between LC(CL) and CLC antenna tuning unit as power loss is concerned?

2 votes

Problem with RTL-SDR v3 dongle - unusable PLL

2 votes

Can the parallel capacitance of a quartz crystal be directly measured?

2 votes

APT/LRPT images geotagging

2 votes

Wide band TX capable band-pass filter for VHF and Airband

1 vote

What causes my direct conversion 80m receiver to receive AM broadcasts?

1 vote

Serial Inductors in Tuned Circuit - Elenco AM780K AM Radio Kit

1 vote

trying to make a crystal radio, it doesn't work right

0 votes

How do I rewire a simple a.m. loop antenna that became unwound?

0 votes

what are the alternatives to LM387 and SA602AN?