Hi Markus Well the time I logged in to this RX the map still showing the RX was in the dark area. May be I express myself in a wrong way, I meant that at this receiver an erractic carrier was stronge
OK, may be the version I'm using have only 30/60/120 so I set it to 120 normal, 10 minute ticks. Now 1:45 UTC ... the "sw inger" seems to vary across Ralph's line. The link to 1476.jpg on your site i
Hi Markus ... Yes, I'll try next days assuming that the TX will be on using 1Kz on/off pattern or even with regular modulation relay as explained before. But don't worry abt a paralell harness to hel
Not at this turn but soon I'll have a dedicated 500KHz air core loop + tube pre-amp + Kachina 505DSP with 200Hz brickwall filter + WSPR enabled PC (GPS time locked). I will left this instalation runn
Hi ... On the same website, there is also an article about a varctor tuned loop antenna, where the author found the "Q" of the resonant antenna was higher when tuned with varactor diodes, than with a
Vy interesting ... Hi all, I have made a tunable up-converter for VLF, LF and MF. Nothing ground-breaking, perhaps, but maybe a little inspiration for some. I have compared the result with a professi
Hi John. Hi Marcus, Very interesting. What software are you using with the sound card, please? 73, John Rabson F5VLF 58800 Cervon France JN17vg It's a nice software written by G3PLX, Peter, named GPS
Hi Alberto ... How can you have a 0.2 Hz error at 11025 Hz and then 3.6 Hz at 800 Hz ? Or did I understand wrongly your numbers ? This 11.024XXX divided by 2 is the "corrected clock value" that JVCom
Hi: Does anybody remember an ANC circuit for LF that was published on a 73 Magazine some years ago? It uses several opamps. It's not the canceller that uses some J-Fets X Toroidal transformers. I'm l
Hi ... I checked a SB16 ISA card running JVComm32 against 1pps from WWV and a OEM Furuno GPS and, in both cases, when applying correction, software told a value = 11024,80450540374 . A long number bu
Hi ... How easy would it be to include a facility for storing the exact measured sampling rate in a .INI file that can be called up when the software is run. G3PLX included such a facility in PSK31 t
Hi Peter ... manufacturing plant about 850m away and an NDB about 900m away. NDB 900m away: once I had a problem - noisefloor rise -when I used to live 4Km away from a 720KHz AM (100KW). All filtered
Hi: My name is Marcus, PY2PLL/PY3CRX. Located GG66rf. We're not alowed to use LW frequencies - yet - but I've been monitoring from 1Hz to 525KHz for a while. I asked last year a special authorization
Hi ... I've been using a MC1496 as a mixer and decided to try those SBLs from Minicircuits. But the models that cover down to few KHz are quite expensive and not available here. Re-reading the Minici
Hi Mike ... Do you see DBF39 on 138.830kHz. This is a carrier, interrupted by data bursts every few seconds. Monitoring this station will give you a good indication of whether amateur signals will be
Hi ... While I was waiting for my sound card "warm up", I tunned to the broadcast carrier on 153KHz. Then I decided to feed the 1pps from my GPS to upconverter antenna port via 120pf capacitor. Above
Hi ... How can I be in touch with blacksheep webmaster? My e-mails, when sent from 200.189.209.130 (my ISP SMTP address)are rejected with the message: 550 mail from 200.189.209.130 rejected: administ
