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WET Dummy loads! The fluid used in a wet dummy load is to dissipate the heat produced by that resistor in the dummy load. That fluid needs to be able to handle a lot of heat. So, a flammable fluid isn't a good idea, right? Some of the commonly used fluids are mineral oil, transformer oil (not...

'Back swing' is applying more 'modulation' to a carrier than the total power of that carrier. The excess produces a 'negative' signal which decreases the total power of 'modulation' + carrier and so that output meter shows a drop in power... a 'backswing' of the meter's needle. All of the...

I think you meant to say to run them in parallel. Parallel will increase the current, series would increase the voltage.

I think you will find that with Kenwood radios the max power on AM is 1/4 of it's rated power on SSB. There's a very good reason for that and you gain nothing by going over that power level. They can certainly be modified to do more than the 25% of max, but there'$ a penalty for it! Another...

For what it's worth to you... Having a capacitor rated for at -least- twice the voltage applied to it is a very smart idea (also a 'safety standard' in the commercial industry). Being rated at more voltage than required isn't a draw back in any way. There are always going to be 'surges' for...

Thanks all for the welcome. Why so long? Computer failures, other things you don't want to hear about, and couldn't remember the @#$% URL! Oh well, what else is new... Paul/Doc/w5lz/MD/PHD/ret. (MD = Mazzio Driver; PHD = Pizza Hut Driver)

Just some thoughts about a 'J-pole' antenna, A 'J-pole' antenna is an end fed 1/2 wave vertical antenna, and as such has no gain at all. It's 1/2 wave antenna and that's the 'standard' everything is compared to for gain. They d work, aren't all that difficult to tune, and are pretty cheap/easy...

Nothing earth shattering here, just the same old way of doing it... Find the source of the noise and 'cure' it at the source. Typically that means adding a 'filter' (capacitor to ground or inductor in-line). The 'other' way of doing it by shielding. Wrap the noise maker in foil! Yeah, right...

My, my! This is an old thread. Those '440's are still the same though, so most of the stuff here still applies...

Typically, that meter is going to be close to the transmitter. If there isn't all that much cable between the transmitter and the meter, there's going to be very little loss of any kind, so, if your transmitter is putting out enough power to calibrate that meter, then that's all that's...