3 votes

Shifting Frequency of a VHF Crystal?

You can add inductance in a sequence like this. simulate this circuit – Schematic created using CircuitLab Yes, you can also try adding capacitance in parallel.
k1zmt's user avatar
  • 337
3 votes

Handheld amateur radio

A little research on the MY-EMR1 radio finds that it is a rebranded UHF/VHF radio (probably also with boosted price) marketed to preppers, likely with poor or incorrect documentation and a high price. ...
user10489's user avatar
  • 6,255
3 votes

Monopole antenna with no ground connection

Usually the shield is connected to the magnet at the base of the antenna and is capacitively coupled to the metal to which the antenna is attached. Typically a steel pizza plate acting as a ground ...
Jean-Marie's user avatar
3 votes
Accepted

Creating a single feed wearable wire antenna

If it is on your body or within a close range of it, the resonant length would vary wildly and you may not be able to get a close match on multiple bands. I suggest try long IE ~4-5 ft and cut shorter ...
AI7OW's user avatar
  • 324
2 votes
Accepted

Monopole antenna with no ground connection

What happens to the ground wire in this case (the outer part of the Coax output)? is the shield of the coax cable acting as the "ground"? Yes, and so is all other connected metal, possibly ...
Kevin Reid AG6YO's user avatar
  • 24.5k
2 votes

Why are VHF radios so much cheaper than HF ones?

HF is rarely if ever used for commercial 2-way communications. Cheap radios such as the Baofeng/Wouxun UV-5r evolved from cheap commercial radios for the public safety and commercial bands. 10-meter ...
AI7OW's user avatar
  • 324
2 votes

Using Aviation VHF radio on different frequencies

Probably not legally. Transverters are a thing, but I doubt if any are certified for use in the services you mention. You may of course DIY a transverter, but that may end up being as costly as simply ...
webmarc's user avatar
  • 4,105
1 vote
Accepted

Using Aviation VHF radio on different frequencies

Modifying a modern solid state radio to work at different frequencies is difficult and not worth the time, effort, and equipment costs. You could buy a low cost marine band handheld or portable radio ...
Jim's user avatar
  • 1,688
1 vote

Monopole antenna with no ground connection

Dan, All simple antennas have two parts, think of the two arms of a dipole, or a rabbit ear tv antenna. The whip or monopole antenna has two parts also, the wire in the air, and the earth below it. ...
Jimbo47's user avatar
  • 86
1 vote

Pulsing static on 6m

Dustin, The fact that this is a regular timed noise argues that it is man made. When do your hear it, only night, only day, all the time? Do you live in an urban environment or rural? Could it ...
Jimbo47's user avatar
  • 86

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