Re: [Elecraft] [BL1] Seems lossy in all useful configurations

[EMAIL PROTECTED] wrote: In a message dated 10/13/07 4:58:04 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: There is no difference if the balun is on the input or output side of an unbalanced tuner. In theory, no. In practice, there can be a big difference. See

Re: [Elecraft] [BL1] Seems lossy in all useful configurations

In a message dated 10/13/07 4:58:04 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: > There is no difference if the balun is on the input or output side of an > unbalanced tuner. In theory, no. In practice, there can be a big difference. See > > > < > http://fermi.la.asu.edu/w9cf/arti

RE: [Elecraft] [BL1] Seems lossy in all useful configurations

I'll second Don's suggestion about using a 1/4 wave 'counterpoise' and forgetting the balun! Philosophically, I keep all passive components that I can do without out of the antenna system simply because are no "passive" components! If something doesn't add gain or power, it absorbs signal or powe

Re: [Elecraft] [BL1] Seems lossy in all useful configurations

David, Most any indoor antenna is in close proximity to the transceiver, and it is quite likely (even with the most carefully balanced antennas) to have RF floating around most everywhere, including the transceiver chassis and any earthing wires. I would suggest that you may be better off tr

Re: [Elecraft] [BL1] Seems lossy in all useful configurations

David Woolley wrote: The requirement that I'm trying to meet is that the K2 chassis not be RF hot and that, if I connect the mains ground, there is no significant RF in that ground. RF choking the ground has the same problem that the choke impedance will not be large compared with an off reso

Re: [Elecraft] [BL1] Seems lossy in all useful configurations

Vic K2VCO wrote: There is no difference if the balun is on the input or output side of an unbalanced tuner. See That's only true of an ideal balun. A real current balun has a finite common mode impedance, which is typically designed to be about 10 times the nominal operating impedance. I

Re: [Elecraft] [BL1] Seems lossy in all useful configurations

David Woolley wrote: I tried using a BL1 (4:1) with my K2 and KAT2 to allow earth free operation using an improvised antenna in a first floor (US = second floor) flat, but I've come to the conclusion that under almost all circumstances, even though I'm getting reasonable SWRs, most of the powe