G3LDO received in Canterbury at about 21.15 Z this (Friday) evening with the best signal that I have ever heard on the band. He was calling CQ on approx 72.4 kHz. I returned his call on 71.9 after my
I concur most heartily with Peter Dodd. It was a wonderful experience to have a short QSO on 73 with Derek, G3GRO, who was booming in at a full S9. My congratulations to all concerned! Roger, G2AJV.
you are right, . Strictly it should be interpreted as uninterrupted - not even coded into morse but usage has modified the definition to permit morse. Roger.
Congratulations on your basic radio. I have a terode of similar vintage but a student broke the glass and it no longer has a vacuum. Mine has the old type British 4 pin base at BOTH ends! Yours must
Readers who retain old copies of the journal RadCom will have seen two historic photographs of a distinguished experimental physicist which appeared in the April 1944 and May 1944 issues of the journ
As an old man I still use the good old units. There was nothing special about a cosen standard used in Paris and the metre was based upon the division of what was thought to be the distance from the
Dear Peter, In response to your responses: Without knowing more details of the experiment I can't comment. However, the effect of magnetic fields on electron beams is well known - the fact that you c
Dear Peter, "Could I ask what vector potential is?" - Thank you for asking! I spent many years asking the same question and the usual answer that I got was that it was something to do with fluid mech
I have just read some recent correspondence on this net concerning the pros and cons of placing the antenna loading coil in the shack or at the base of the vertical aerial wire. The loading coil is n
I have recently constructed a model prototype of a new design of transmitting antenna and I will be very grateful for any reports of reception. This aerial is not intended to compete with a tall Marc
Over 50 yars ago flourescent ligjts were installed in the radio astronomy research laboratories at Jodrell Bank. They proved disasterous for our detecton of low level signals from the depths of the u
Mike, Sorry for a misunderstanding. If all that concerns you is matching then it does not matter if there is a ferrite core or no ferrite core, but if you are also interested in getting greater effic
Mike, If you load it with ferrite you will certainly increase its inductance and also its efficacy as a receiving antenna but the radiation efficiency on tx will decrease accordingly (the difference
Very interested to hear about the kugelblitz as I have to attend the International Conference on Ball Lightning in St Louis, USA at the end of this month. Please send details to my email address: bof
