At 11:54 17/01/00 -0800, G3KEV wrote: There is a big difference in the radiation pattern and angle of take off between a high vertical antenna and a very low antenna given the same rf power to the an
There is so much more needed to built a BIG vertical than just the will to do it. A stable big vertical tower costs a lot of money (at least they're not for free in Belgium), the authorities need a t
Last night I could hear a very weak station calling IK5ZPV, The station was only 229 here (rather high QRN) and I got the call only partionally as S53?. It happened arround 22UT and on 136.600. 73, R
You're right, DCF39 should be heard at the American side. But, assuming that both DFC39 as CHF have an ERP in the range of 25kW, if we heard CHF so strong then it should be no problem for them hearin
BTW: Thanks to all of you who have send a birthday-mail to my father Butz, DL6PE. He was, what we call in German "geruehrt" (and I dont know the English expression for it ...) I think the English exp
Another consideration is a person that has asymmetrical ears.!!! There could be 2 S points difference in your report depending whether he is listening to the left or right. All these anomalies should
I agree. I reported the systematic difference in signalstrenght of OH1TN (often 10dB or more) in the UK versus Belgium already in 1998. It is also remarkable that this difference in much less (or eve
I know that IK5ZPV runs lower power when it is raining (to prevent arcing). But apart from that I have a 'day to day' signal strength variation on his signal of over 10dB. I cannot give exact S-meter
At 11:28 21/01/00 +0000, M0BMU wrote: Dear LF group, I am almost ready to go with QRSS; however I have not seen a complete QRSS QSO yet, so I would appreciate some operating procedure guidelines from
Trying another approach than just stating that it is nearly impossible to cross the pond on 136kHz I contacted some VO stations that are active on 80/160 and asked them if they wre interested in LF.
At 21:48 6/02/00 +0100, IK1ODO wrote: I have a question for antenna modelling gurus (G3LDO?) What is the vertical radiation pattern of our shortened verticals? Is it dependent of ground resistance an
At 20:22 7/02/00 +0000, G3KEV wrote: Is Rik saying that a 1 metre vertical suitably loaded and resonant and with the appropriate amount of rf supplied to it to emit 1w erp is the same as a 50 metre v
At 15:54 11/02/00 +0000, M0BMU wrote: <... I have revised my estimates of the radiation resistance of my antenna, using EZNEC. If zero losses and a perfect ground are assumed, EZNEC gives a value for
For some while I was looking for an easy way to calibrate the s-meter of my receiver. Sometimes the solution is that simple that it takes some time to find it : with a handfull of common parts it is
So can we assume that the exceptional conditions reported by Larry Kaiser were related to this Flare on 5 feb.if so there is a delay of one week between the event and the change in propagation! is th
Vaino is right, I mixed up SID (or MDE) with the auroral effects which are caused by slower particles and occure several days after a major flare. In the past I observed enhanced propagation on 136kH
At 00:38 17/02/00 -0500, DK8KW wrote: I know that the idea of the top load is to get more capacity in the air. owever, I have read an article somewhere about toploads of a short vertical being equipp
At 10:39 18/02/00 +0100, DL1SAN wrote: I thought about an symetrical antenna for LF. The antenna could be an inverted V arrangement with a length of 2 X150 m. A practicable hight is about 20m for the
At 23:45 18/02/00 -0000, EI0CF wrote: ... Basically it is a 4 wire horizontal antenna using electricans earthing wire. Length 90 metres overall. Total amount of wire in antenna 360 metres. ... To bri
At 09:35 21/02/00 +0000, G3OLB wrote: Thank you Alan for the good reports - no change in Tx or antenna but some ground system improvements - now includes long sheep fencing and copper pipe thrown int
