RE: [Elecraft] FD Battery rules (was QRP Power Level?)

2006-07-09 Thread BMW
No, the battery subclass REQUIRES that all contacts be made on 5W or less. This would be a class A operation with a power multuplier of 2. This is part of the confusion. Power mults and power output requirements should not be mixed. The battery class should be a separate class (as it is), but allo

RE: [Elecraft] plexiglass

2006-07-08 Thread BMW
If cost is no object, you might try optically clear EMI shielding, like Chomerics' WIN-SHIELD: http://www.chomerics.com/products/winshield-elite.htm There are others making similar plastics with EMI shields built-in. Even those CRT radiation sheets might work. Google "clear plastic EMI shielding"

RE: [Elecraft] FD Battery rules (was QRP Power Level?)

2006-07-08 Thread BMW
[EMAIL PROTECTED] writes: > >> While the Battery subclass is limited to 5W, the Alternative Power Bonus >> is not. We were running 100W on Battery for one of our stations using >> Solar Panels as the power source. Hope you don't think that the alternative power bonus can be made with a higher pow

RE: [Elecraft] FD wipe-out-need advice on the Iambic key

2006-06-28 Thread BMW
Actually, Iambic operation is a little more complicated than this. I found a good explanation at http://www.n9vv.com/k7qo-a-b-keying.html In this, Chuck says: "In mode A. When the paddle or paddles are released, either during a space element or during a current element being sent, then sending i

RE: [Elecraft] Re: tube amplifiers and polypropylene capacitors

2006-05-25 Thread BMW
Polypropylene caps are useful for two main things: 1) circuits that rely on repeatable charging/discharging characteristics (such as analog to digital converters, sample & hold circuits and active filters), due to their good dielectric absorption properties (i.e., they don't "re-charge" after bein

RE: [Elecraft] SKN - A Straight Solution

2005-12-20 Thread BMW
What's needed is a "Mechanical Key Night" (bugs and straight keys) versus an "Electronic Key Night" (keyers and keyboards) to go along with "Straight Key Night" (straight keys only). And for those who don't like CW, a "VOX Night" and a "PTT Night". And then, considering the season and the condition