Haven't seen any posting in this matter, so I add this.... THE ALEXANDERSON TRANSMISSION IN 2004 Also this year there will be a transmission with the Alexanderson alternator on VLF 17,2 kHz, now on S
Hi Very often such noise could be improved with a simple task, the first thing to try is connecting a bifilar wound choke where your telephone line enters the house. the next is to improve at your ne
if it is unbalanced type signal -- J M Nĝding, Datakvalitet, TTS, Kristiansand --Original Message-- From: [email protected] [mailto:[email protected]]On Behalf Of Al
tnx, and even the audio type of transformer were tested as choke on 2.048Mb/s PCM systems, but introduced 6dB loss, they are quite heavy, while only the difference between the to windings adds to the
... seems I can stick to my universal Joy-Stick for some more time.... until you come up with some better proofs for the EH... -- Jan-Martin, LA8AK --Original Message-- From: owner-rsgb_lf_group@blac
Have experimented very much improving key-clicks in the 80's, such "AM modulator" for CW-transmitter is shown on my page http://home.online.no/~la8ak/d31.htm The modulator is driven from a lowpassfil
Hi I got to the conclusion that the coupling loops should have an area of 1/100's the tuned loop. Note that some suggest using tuning capacitor for the loop. My loop tuning is so sharp - it is 25dB v
Warning: Remembeer to buy solder because some EU rules forbid to sell the normal type of solder after july 2006, some day you may find it difficult to solder your projects, but not so important for t
Even 1N4148 doesn't add more attenuation than a fraction of dB. so I really doubt the statement, the only real problem is possible intermodulation 73 Jan-Martin, LA8AK --Opprinnelig melding-- Fra: ow
So there might probably not be any problems at all... 73, Jan-Martin LA8AK --Opprinnelig melding-- Fra: [email protected] [mailto:[email protected]]Pċ vegne av Andy
100µH has reactance = 80 ohms, and 0.1µF has 12.5 ohm, so it isn't dramatic extra attenuation for the 6 switches, possibly around 10-15 dB in a 50 ohm system, or did I make wrong calculation? Jan-Mar
Not sure if IF-break-through could be a problem - as it is at least on the 28MHz band - so might be an idea to use lower frequency band, possibly around 2MHz (?), so I might even consider my well rep
very interesting, and it is still allowed to use an additional notch filter, or did I misundertand? 73, Jan-Martin LA8AK (ex GW5BFV) --Opprinnelig melding-- Fra: [email protected] Me
It depends whether it is German steel valves like EF11, EBC11 etc or some other rubbish, believe I saw something like it in Düsseldorf once, I reckon many collectors are interested. But the problem w
But if you wish to combine two signals which has the same source, and they are obviously in the same phase, the wilkinson thing is only adding to the complexity, and it is very bad practice to do so.
Alan, selective level meters usually operates with 60-70dB difference between the strongest and weakest signals, and I've never found any problems with them at work when this is bore in mind. But of
