By all means put a wire in the middle for extra pf. but the z shape will make no difference I think. Make the vertical of three parallel conductors , each to the centre of each top wire Bryan g3gvb H
Equipped with rubber gloves and rubber boots and dark goggles, , connect "earth" of the power supply to your door frame..??? Maybe measure DC PD first but not such sense of adventure. G3GVB Consideri
Figure of 8 is quite right ,The trick was to cut a shallow shape in the face of a large cork to hold the crystal and to to cushion it . Also to finish with what used to be called "Jewellers Rouge". A
no but there's these five bread rolls and a pair of herrings going spare. -- Original Message -- From: "Rik Strobbe" <[email protected]> To: <[email protected]> Sent: 14 Septembe
what puzzles me is that you can energise a bulb [300 ma x 12.6volts?] at nearly 4 watts with an ERP of less than 1 watt...........;-)) G3GVB to antenna been and than of
Thanks. But been there , tried that. No difference. Now gone to local PMR fixer and supplier / local ham who swears it is low supply volts. . Will let list know what it was. [I hope ]. G3GVB wonders.
My faithful IC 706 which I was about to feed with the pre-amp/filter for 136 has developed a fault which puzzles me on the Tx. side It would once produce 90 watts on all bands with a 12.6 volt batter
Remember that a short cb antenna has inductive loading in it somewhere, which means that if you are adding a whip in series with exixting antenna then the length for resonance will not be the same as
This to record really stimulating talk about Loops by Mike Underhill at Horsham last night. / really stirred the old grey matter so now I gorra make one for self. Thanks to HARC for admitting visitor
All very well but for a decent, reliable rotary spark-gap on '600 metres' you young fellers can't beat the 1913 edition. Bryan -- Original Message -- From: "Mike Dennison" <[email protected]
Went to website. the clock is a great idea but.,.. It doesn't show local or GMT. Today it is showing Berlin time. ;-) . I cannot believe the question "what other countries still have AM." I thought a
Thanks but.......it seems like a contradiction in terms. Effective relates to a _particular_ direction. Isotropic is all directions and so _not_ in any particular_ direction. There cannot be I and E
Well I always thought there was a large loss depending on the extent to which polarisation differed between emitter and recvr.? This is from qsl.net: :-....... Notes Polarization Mismatch Loss (dB) =
thank you ........and is this comparison half-wave antenna vertical or horizontal ? Are there limits about how far away is the 'notional measuring' position . It seems we can radiate more power on 13
