I start this series by introducing some basics about antennas, antenna tuners, antenna analyzers and noise / interference / QRM / QRN. In this video: I show the setup I’ll be using when I test the reception of the K-PO WR2100. I introduce the Tecsun (Kaito) PL-389MP Short Wave radio and use it to track down the source of my radio interference / noise / QRM. I’ll also chat about radio wave propagation in the next video. Equipment used / mentioned in this video series: * K-Po WR2100 PLL Synthesized World Band Receiver. * Yaesu FT-897 HF/VHF All Mode Transceiver * Yaesu FT-950 HF / 50MHz band All Mode Transceiver * Yaesu VX-6 Submersible Dual-Band FM Transceiver * Yaesu FT-817ND solar powered portable go-pack * Yaesu FRG-7000 Receiver * RigExpert AA-200 Antenna analyzer * Simple wire antenna * Par electronics Par End-Fedz EF-10-20-40 full length half wave dipole * Buddipole™- hf/vhf portable dipole antenna system * MFJ Deluxe Travel Antenna Tuner – MFJ-904H * Amateur Extra HAM radio license – KD8LON
Nice to see more HAM videos Martin. It is a subject that I enjoy learning /relearning about.
Holy Cow! Does that go for all MPPT equipment? I was wanting the FLEXmax 60…!
you can try covering it in tinfoil to see if that will shield it. it might just be hammering that out onto the mains grid in the house so it can’t be shielded.
maybe needs inductors on the output
Value – Thumbs Up! - Thankyou 😀
@TheSurvivalSecrets Thanks for the feedback…certainly more to come. Cheers,
Martin.
@OrionTiger I’m going to do a test for you to confirm…I’m keen to see myself now. Will respond to the rest of your PM query too. Cheers.
@DanFrederiksen Good idea…worth a bash…will post the results.
@LordHewing Always appreciated good man.
wow i cant be leave that made all that noise
Unfortunately all switching power supply will do that.
That is why they normally only use a transformer in professional audio equipment and not switching powers supply since those work in the range of hundred to thousand kHz.
You need to try the PWM one it will probably produce less noise since is much lower frequency and will not go that far from the source.
Getting everything in a metal box will probably solve the problem (must include the wires and battery since they act as an antenna).
@MrOurcanada Yup, scary how much noise it can generate.
@electrodacus Thanks, valuable input. I’m going to attempt to see if I can shield it in the near future.