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Also depends on wheather the capacitor formed by the magnet/paint/roof is large enough to make a decent ground for the shield.

He's talking about George Jasko from Monroe Twp. He used to go by Sparky on the air.

Some phones/crackberries/Ifone/dingus devices must be a lot easier to text on than others. I wonder which has the easiest keyboard to use.

Elastic stop nuts are OK until you need to re-use them.

If one carefully reads an SD1446 spec sheet one will not recommend one of these devices for linear amplification. Pay close attention to the drive power verses output power graph. It is not linear over any range. The graph should have a constant slope at least somewhere. These devices are...

Thanks for the explaination.

LMR-600 and LDF5-50.

Snap on ferrites on everything going into the radio. Power lead, antenna cable, mic wire, etc. Or try it one at a time. Depends if you like a good expelliment;)

Magnetic loops can provide excellent results but be aware of the RF exposure around them. Short loops have a much higher level of near field intensities than a dipole.

My vote is for RF getting back into the radio somehow. A slight drift on AM will not be noticed plus the constant carrier means less dynamic power out.

A conjugate match is a device which contains components possesing an equal and opposite reactance of that in an AC load. Example: Your short mobile antenna is capacitively reactive. It has an impedance of 65 -22j. An inductor with a reactance of +22j will allow all of the RF power to reach...

Have fun while there's still stuff on shortwave left. Be sure to check out WBCQ: WBCQ The Planet

Harris Pacer Bounce. RF-350K/AM-7224 It has more channels......

Thanks for posting the pictures. The manufacturing areas are impressive. Any more of the test range? Turntable? Test equipment? It would be a lot of fun to see a MOP of Sirio doing a test of CB type antennas. I used to live 2 miles from Phelps Dodge's range.

I think you can lose the DC to AC converter and power the radio with 12 volts. Some of those inverters are very noisy and might be plugging your ears. Otherwise look for the usual antenna loose connections. Swap your radio to another station to eliminate it as a problem.

Sounds like a job for those cheap ebay Russian surplus vacuum relays.

Soooooo 4 X 2sc2979s making 650 watts is loafing along and sounds "clean"?

Not sure about the 394 but if it's anything like the DX-440 a chunk of wire works. Problem is these radios do not have adaquate front end bandpass filtering so a really good antenna will make unwanted stuff appear. With all the noise generating devices in the home and neighborhoods...

It's called a good Yankee hamfest and a sharp eye.

What exactly burns up on these when power exceeds the do not exceed level?