http://www.g4jnt.com/DropF/137khz_qrss_tx.jpg On 15 July 2017 at 14:46, F6CNI - Andy - JN19QB <[email protected]> wrote: Same here using a TCXO. I think my QRG accuracy is about + / - 0.1 Hz on LF also
g 4 jnt 'Andy On 16 July 2017 at 10:59, Roelof Bakker <[email protected]> wrote: Hello Markus, This is what I received last night: DL6II G3XDV DF6NM R7NT (weak) G3JNT See attachment. Best regards,
I'd be interested to see a picture / diagram of your switch I once foolishly tried a 10kV rated reed relay thinking 10kV rated contacts would surely do the job - it lasted probably a couple of cycle
Digressing slightly, but a parallel warning... I once hot disconnected a BNC plug carrying 700 Watts of RF (Low Z, transmitter output) . As the contact broke it generated a plasma arc that shot
Leaving the secondary of a current transformer open-circuit once caused half a city to be blacked out when the 400kV grid network tripped http://www.g4jnt.com/Hams_Hall_Investigation_Report.pdf Quit
I get a "forbidden" message and teh screen shown below when trying to view the second URL, the .PNG file Inline images 1 On 6 September 2017 at 18:02, P. W. Schnoor <[email protected]> wrote: Hi Rik, Yes;
I have the very book in front of me. The LF Source Book There is a littel bit of justification for those values, but not much. They seem to be experimental Photo of the two pages covering LF Verti
I now see that same text is repeated on page 52 of the LF Experimenter's Handbook, so the pages I just copied don't give any extra info . There was no further detail to be found in either of the tw
WSPR works with a noise bandwidth of 1.46Hz, and by virtue of the strong FEC, allows copy at a S/N IN THAT BANDWIDTH of about +4dB. This equates to -24dB S/N in 2.5kHz 10WPM morse has a noise ban
Mal, I think a little attention should be paid to, perhaps, your power supply. The 100Hz sidebands, as I recall from earlier this week, should be much lower in level. Seen on Spectrum Lab at one sta
Hello Andy The idea of using any SMPS in, or near, the shack is somewhat abhorrent. It is possible to introduce a series circuit in a linear PSU which is not exactly a regulator but has a hum can
I bought it before Ebay was even a glimmer in someone's eye. Made by Eltek, there doesn't seem to be a tyoe number. Its an old 48cm rack-mounted sized ex telephone exchange job. I dived inside an
If you have a PME system, your ground is probably quite good. Don't under estimate the value of using your mains earth if you have to. 'jnt Virus-free. www.avg.com On 30 October 2017 at 21:35, R
