Recent content by Miss Amy

For RF devices that charge/take in energy through RF waves, does it only take in electricity from a frequency it's wired/set to pickup/receive or does it get electricity from all RF waves? Can an antenna fold in (collapse but still connect like tent poles) and still remain operational like it...

Is it safe to be exposed to SHF or EHF for a very long time? Like, hypothetically, there was an ear device in my ear that operated in the SHF or EHF frequency band. Would it be safe for me to use it for a long time especially since they're microwave bands(?). Are microwave bands bad for you? I...

I mainly looked at the wiki for Radio Jamming. After looking at it some more, I noticed the wiki said: "A transmitter, tuned to the same frequency as the opponents' receiving equipment and with the same type of modulation, can, with enough power, override any signal at the receiver" So, I...

Hmm, I'd like to know from both please? Thanks so much!

Hello. I have a question about jammers. Based on this picture I made quickly, from what I've read online, Transmitter 2 will definitely be blocked with interference by the jammer since it's in its range. My question is, does the jammer also block Transmitter 1 and Receiver 2? Assume that the...

First off, thank you to everyone who replied! It's a lot clearer to me now and I appreciate reading your answers. Does that mean there is more past 0hz? I'm sorry, I wanted to be a little more specific for something that I'm looking into. Thank you for helping though!

Does it take more electrical energy to transmit HF and lower frequencies than it takes to transmit VHF and above? Are there any wavelengths beyond radio waves and gamma rays? Is it true that the lower the frequency, the lower the amount of data that's being sent? I read on this wiki that...

How many walls does a HF signal has to go through before the signal starts to fade considerably? How about LF, MF, VHF, and UHF signals? From what I've read, lower frequencies go through more walls than higher frequencies before fading out, is that correct? Thanks a lot for reading this!

I'm talking about the HF range (30mhz-3mhz) and lower (since that is the range the KiwiSDR has). Unfortunately, I have to have the antenna inside my house and near my computer/internet connection. Would that be okay? Are general internet connestions HF and lower? Oh, I'll try to find coaxial...

I recently bought a KiwiSDR and it's my first SDR so far. I was wondering, what antennas you guys recommendation for it and whether this recommended antenna is truly good for it (it was listed on the KiwiSDR site as a recommended antenna, but it's a bit pricey for me). I'm trying to find signals...

Hello. I have a very small antenna and I was wondering if it can receive and/or transmit low frequency signals (or if it can only receive/transmit high frequencies). Likewise, do I need a very large antenna to receive/transmit low frequencies? I've read somewhere on the internet that the...