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The first thing I thought of when I saw "mic input" was the possibility of overdriving it, but both of those links address this issue.

If you decide to go with the Eliot ESP designs, this transformer can work extremely well. Several members of our shortwave listeners club use these to interface their radio to their PC for data

Are you transmitting AM or CW [of FM]? You can listen to AM with a simple diode detector but the levels will be critical, too low and the recovered audio will be too weak, too strong and the audio

Hi , I have reports of distorted tx audio on my ft-767DX,is it possible to feed audio from my laptop headphone jack into the rig mic input,? then tx the laptop audio into a dummy load via the radio

Interesting as each pair has a different rate of twist... I intend to try using some of that stuff for audio, and seeing how it performs. No idea of the rate of twist. A friend's apartnemt in NYC

Please let us know if it works for you.

Cat 5 cable is specified as having 100 ohms +/- 15% [really tight tolerance there.] Single pair twisted, solid, PVC insulation with about 4 turns per foot has about 120 ohms impedance at 3.5MHz, but,

Wow, that's really odd. And whoever did that didn't think that it'd make a difference? I have a bunch of cat5 cable, left over from when I used to do that kind of wiring (and all the stuff that

Years ago, I had sniffer cable truck drive by and pick out my house as a leaky house. I was not surprised that is was leaky, as I had a mishmash of cable runs over the years. I even saw the equipment

cheers+73 de m3-vuv

Make that 707 if ----1k resistor---PA0RDT---coaxial connector---> cable > SDR IF = intermediate frequency

Yes 707---->PA0RDT---->BNC---cable----->SDR [No idea what RF connector your SDR uses, it could be BNC, SMA or God only knows what. I used a BNC but you could use a "F" Does that make sense?

I can find the if of my 707 ok, S what your saying is to use the pa 0rdt antenna as the buffer/ interface between the rig and the sdr then?, cheers Paul m3vuv 73.

Sigh I have zero, no, as in "I don't know jack about the Yaesu FT-707. You need to download a service manual and figure out The IF strip, for instance, my Kenwood R2000 has First IF variable 45.85MHz

do you mind explaining how to do that?.

My first real on the books job was at a medical school. One Monday morning we came in, fired up the equipment, I went to the psych department to prepare for a psych evaluation and the control room

While working for HP, I had the job to install a cable monitoring system for return path ingress. One "system" in Ohio was so leaky, World Wide Catholic Radio overloaded the return path amplifiers.

our government will always be on the side of who ever contributes the most to their campaign fund

Heh. :-)

My experience with lithium batteries is extremely limited to those in our phones and laptops. I've never tried using them as a build it project. I have seen a Samsung phone go up in flames, be dosed