Hi, Rik and Group. Antenna current = 1.8A Theory : radiated power = 0.06*1.8^2 = 194mW EMRP (= 583mW EIRP or 355mW ERP) Reality : about 35mW ERP (based on field strength measurement) Difference : -10
Hi, David and Group. My conclusion: The original estimate is too high and my estimate is probably too low and the only sure way is to spend some time measuring. Your conclusion may be right. But I sa
Hi, Giulio and Group I have made some comparisasion tests on my RX antennas at the beacon lower power level, the winner is again the AMRAD E field antenna, with many db of better S/N then my ferrite
Hi, Rik and Group. Alex, Any chance that Vlad can determine his frequency relative to the DCF39 frequency ? Should be easy using a PC with soundcard and Argo software. Unfortunely Vlad has no compute
Hi, Group. It may begin to explain why his signal has been elusive so far. The only reason why nobody see Vlad is someone wrong with frequency! May be error by beating frequency??? Unfortunely Vlad h
Hi, Group. Just a thought, but isn't an antenna current of 2.75A a bit low for 0.5W ERP? I recall running 8 Amps to a 300 foot wire with the top at 150 feet high and Jim measured it at 0.5W ERP. Or d
Hi, Group. New INFO from Vlad. Now ERP is increased to ABT 0.5 Watts (Ia=2.75A). Also Vlad has recieved IK2DED beacon in CW (audible) this night. Condition seems bacome better! Vlad recive DCF39 58 d
Hi, Mike and Group. What is Vlad sending? I do not know exectly but it seems he send the call... May be dashes is Vlad's tuning. I am seeing a series of dashes close to the expected frequency. Do you
Hi, Group. I had yet another chat with Vlad on 20 m. He had enlarge horizontal part of his ANT. Now ERP is ABT 0.2 Watts. It is very strange nobody see him... Vlad has some problem with his memory ke
Hi, Group. Just now I have a long chat with Vlad on 14 MHz. Now TX PWR is increased to 100 Watts. Antenna current is more then 1 A and ERP seems to be ABT 0.1 Watts now. Vlad will beacon from 20-00 U
Hi Alan and Group. Unfortunately not knowing the exact frequency at extreme range means throwing away quite a lot of dBs. So if anyone further East copies Vlad's transmissions I would be interested t
Hi, Group. Just now I have chat with Vlad on 20 meters. Vlad inform me he have memory keyer and he will use it for QRSS beacon test very soon. Vlad will be on 136 kHz until end of october. I'll fowar
Hi, Group. Just now I have chat with Vlad on 20 meters. Vlad inform me he have memory keyer and he will use it for QRSS beacon test very soon. Vlad will be on 136 kHz until end of october. I'll fowar
Hi, Group. The last news from RX3QFM. TX is ready! Power abt 12 Watts. Now Vlad is building PA. Interesting observation by Vlad: after rein level of DCF39 increase 12 dB! 73 de RA9MB/Alex http://www.
Dear Jim and Group. Many thanks for relaying Vlad's report - do you know his QTH or other details? Cheers, Jim Moritz 73 de M0BMU By few short msg from Vlad I know as follows. He use FT840 + upconver
Hi, Group! Very soon RX3QFM (Vlad) will TX on 136 kHz. TX output is 5 watts only yet. But antenna height is 45 m! Now he is ready to RX. Vlad copy DCF39 56 db over noise. Unfortunely Vlad has no regu
Hi, Group! Very soon RX3QFM (Vlad) will TX on 136 kHz. TX output is 5 watts only yet. But antenna height is 45 m! Now he is ready to RX. Vlad copy DCF39 56 db over noise. Unfortunely Vlad has no regu
Hi, Group. Creative has recently announced a new sound card, with 106 dB S/N ratio, 192 kHz stereo sampling, 24 bit resolution. Together with the Pentium CPU it could represent a good last IF stage.
Hi. Andy, Please send me a copy. Thanks! 73, Dick, PA0SE And for me also... TNX At 13:41 28-10-02 +0000, you wrote: 73 de RA9MB/Alex http://www.qsl.net/ra9mb
Hi, Uwe and Group. I have got a theoretical problem: if I considerably change the output pwr of any tx - sw or lf - I have to readjust the matching equipment. more pwr means less inductivity to readj
