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Tried that Gordon but that isolated the short that’s needed too at least when testing for continuity with my meter it did...

Put a diode in each line

Just thought. The ptt line on the amp has 12v across it. So Isolation would be needed?

Hi, We can get under 1 Hz with a spectrum display which is a little different from the waterfall. We can see the pip from our "vfo" crawl up the slope of the pip from our standard. Near the top, when

If you have any kind of program that displays a waterfall with frequency marks on the audio (FLDIgi is an example) you can easily get within a few Hz.

hello i have comment to your youtube video yesterday and have a little bit same problem but i dont know what helps me to get success, what have you done and can you make a video on youtube how it

Hi, Mike.? If you look at the WWV schedule, there are times when it transits tones at defined audio frequencies.? If you play that same tone on your computer or phone (audio oscillator programs are

I did not mean to say that both filters were in use at the same time. Either / or depending what you have in your junk box. I did use those blue murata Y1 type caps extensively that you find in

Your power supply is shutting down due to too much current drawn or a fault. Raj

I found this on ebay, looks like its in spec? Manufacturer: Coilcraft Part Number: WB2010-1 ? Wideband RF Transformer ? Imp. ratio pri:sec: 1:1 ? Frequency: 40KHz - 175MHz ? Pri: L min 95uH,

That's how I'd do it. -- Ryan Flowers - W7RLF MiscDotGeek.com ( http://miscdotgeek.com ) Multi Band BITX40 ( http://miscdotgeek.com/bitx40-digital-jt65/ ) The BITX40 FAQ (

I built a BCI filter for testing its effect on uBitx reception. To my surprise, Almost all of the birdies that I used to hear on 80 and 40 M suddenly disappeared. This includes quite a few that I was

Thanks everyone for the feedback. I plan on using them for audio isolation but when iz mentioned a 1:1 transformer I quickly thought of those. I’ll look for a RF ones in the desired frequency range.

AUDIO transformer! Anything over about 20kHz (maybe 50) severely attenuated.Useless at MHz of IF/RF. Very useful for isolation of sound card to avert ground-loop hum.

That transformer is for audio use. Allison

Guys I designed a BCI filter a few years ago to get the BC stationsintermod out of my TS440S I did publish in the NZ Breakin mag but here is the guts of the article Both filters are in line with the

This is the transformer I used. I wasn’t sure if there was a particular in/out I should follow, primary/secondary, plus polarity. I assumed it didn’t matter which side was with and and just

I installed a BCI filter today the one I purchased from rtl-sdr.com. Wow what a difference. I also purchased some 1:1 600ohm transformers. First the BCI filter is working, but the transformer made the

Hi Terry, in A/B monitoring mode, the frequency keeps switching between the two frequencies of VFO A and VFO B. 73 Allard PE1NWL

hi again what does a/b monitoring do terry gm4dso