The only thing about rice as a dessicant, is it swells up greatly when wet. There are better chemical dessicants you can buy at HOME Centers, where the chemical is used up but retained in a plastic t
OK, Jim, Best for you to make two columns of pin numbers. Make first col. the MC 50 kenwood list of 1 to 4. Then the next column are the pins to use on the Ten Tec Scout connector. What I did for a s
A couple of corrections in my post "mail" should be male. the impedance change is done where the mike cable plugs into the Kenwood mike tube, not on the desk base itself. Just ignore if you were not
Usually a double pole knife switch used to switch antennas would have a double throw. That is in one direction it made the circuit tot he radio, in the other direction it either connected to the rece
I would reseat all interconnect cables plugs, as a first step. Also check the PTT switch for intermittents on your mike, in fact do that FIRST. GL, Stuart Rohre K5KVH
Maybe there is an unregulated voltate surge on power up? And this cuases the resistor to dissipate too much power for its rating? Usually a resistor burns up from something shorted downstream of the
Check your power filter capacitors, (electrolytics) for aging and loss of capacity thus causing voltage variation when the rig is keyed. A scope is good to look for excess ripple on the DC which the
Check with RF Parts Co. for high voltage capacitors, they used to sell some kit boards for Motorola high power solid state amplifiers. You could try the capacitor companies, could TT tell you the ven
The big problem for ham radio manufacturers now, is the no longer made semiconductors used in rigs as old as the Omni VI. Many of the semi companies changed hands and names and lines they make. Even
The Scout has been run on larger Gelled battery here, (75AH); but its receiver drain is quite a bit larger than Elecraft rigs. The Scout can be run at QRP by turning down the power pot on its bottom.
An antenna user has to understand that SWR is a measure of more than the antenna, as it is the system performance at the point of measurement, but reflects (no pun intended) the combined match from T
Taken with my previous post, just remember this about SWR and resonance. Resonance is just the frequency where the inductive reactance cancels the capacitive reactance, BUT, some of the total may not
The "antenna analyzer" of the MFJ 2xx series, tells you a total impedance, ie it does not break it down into capacitive reactance or inductive reactance impedance terms, unless you use the advanced o
Actually, even back in the day of tests before the FCC, you did not get all that antenna stuff until the Extra Class license. You could miss probably all of it and still pass, since passing was 75 pe
Sir, I paraphrased almost the exact words of John Kraus, W8JK, in "Antennas" second edition. To be clear, I was referring to a change in RF current when I said "current". Change means any, an acceler
Any termination or even an open in the end of the antenna wire, like the far end of a long wire, is a discontinuity compared to what the RF current encounters in the wire. That is all Kraus is saying
Yes, indeed, start with Maxwell's equations, but you can understand antenna action from the basics in Chapter 2 of John Kraus's "Antennas" 2nd Ed. Not sure how much he changed the book order by the 3