Author: N4GA – Rob

  • TLT Design and Testing

    TLT Design and Testing

    Cold Rainy Saturday here today so I decided to experiment with some TLT designs and ideas. Stripped the TLTs off my old standby pallet, a 2 x BLF188 and went to work. You can design TLTs using the math, but trust me, this only gets you in the ballpark – a starting point if you…

  • 50dB HF RF Sampler

    50dB HF RF Sampler

    I’ve been using the LPC1 RF Sampler that came with my LP100A wattmeter to sample RF to my Spectrum Analyzer. This is an extremely high quality sampler. However, I can’t use my wattmeter while using the coupler as a sampler. Thus this project was born to build a high quality “lab grade” RF Sampler. Following the…

  • Flex 6300 Output Spectrum

    Flex 6300 Output Spectrum

    Here’s the spectrum of the FLEX 6300 transceiver at 7.18Mhz, 100W into a dummy load. Looking all the way out to to 35Mhz, so I could capture to the 5th harmonic. Looking out that far did me no good because there are NO harmonics at all! I realize this is a lot easier to accomplish…

  • 10 Minutes of FAME on QRZ

    10 Minutes of FAME on QRZ

    I got an email today from a fellow ham telling me I hit the QRZ.com Featured Member slot. Woo hoo! My 10 minutes of fame! Actually, I have no idea how long it stayed up, but it was gone about an hour later….along with any ham radio fame.. Fleeting.

  • SSA3000X Series Spectrum Analyzer

    SSA3000X Series Spectrum Analyzer

    This Spectrum Analyzer came in last week. Looking forward to now actually seeing what these LPFs and Amplifiers are doing. RF is invisible, ya know! Now I can finally run through some TLT and biasing experiments I have had in my head for a long time now. No sense experimenting if you really can’t see…