Hi Anthony, maybe this helps a bit, http://www.sp5xmu.pl/23cm_preamp/ 73es Rien PA0JME Op 10-1-2021 om 19:49 schreef Anthony Coldman via groups.io:

Yes, but the tower is just some 250m away hi, wil try to test with a local station in Belgium tomorrow at 25km 73es Rien Op 10-1-2021 om 18:15 schreef John Fell:

Thanks for the info John, I know condx were bad but normally it recovers quickly or there is the occasional plane reflection, but now nothing at all but for the spurious noise from telephone towers. 7

Hi all, normally I try to monitor the GB3MHZ beacons (currently 23, 13 and 9cm) which present a good condx indication. The beacons are roughly 300km distance from my station. The past few days condx w

Hi all, condx from PA to UK seems below normal, GB3MHz on 2320.830 (dx=298km) is about 6dB weaker than normal, any luck sofar?? Best regards Rien Op 26-11-2020 om 13:17 schreef Nick Gregory G0HIK via

Hi all, just looked once more and both beacons seem to have restored themselves and PI4 copies ok again Best regards Rien Op 17-11-2020 om 17:05 schreef SAM JEWELL via groups.io:

Hi Graham it looks like from Radiall France to me, I have some old data in the attic. Will look for it but cannot promise anything Best regards Rien Op 17-11-2020 om 18:10 schreef Graham - G3YJR:

Hi Sam, I already noticed the 'shortlived' wobbling before, but now it lasts from 8:59 UTC switch on up till now 12:29 UTC, so much longer than normal best regards Rien Op 17-11-2020 om 12:46 schreef

Hi all, upon switching on the shack this morning my first check is always the UK beacons GB3MHZ (1296.830 2320.830 and 3400.830). The first two are practically always audible imo not bad at 280km Turn

Hi I bought a similar one from Pollin a few years ago. As far as I remember gain is around 20 dBi. I manage to receive GB3MHz beacon if condx allow. The past few weeks condx are too bad Best regards R

Colin, it is just software, all the essential code is in the setup. To have minimum jitter I tried to have integer only division The mainloop iust checks for loss of lock and provides blinking my Hor/

Colin I have changed the Si5351 board a bit to have a 10 MHz reference input. You need to pop off the installed XO of course. Then stability seems OK (i use it to synchronise my QO100 LNB and my Pluto

Hi Geoff, strange my blackboards have CE tied with 10k to 3V3 and 12k to GND, thus biasing just above half Vdd, effectively creating a high on the CE input. Btw have seen many variations on that subje

I myself use the LT1253, neat dual video amp 8 pin package, cheap with ali-expres, easy gain setting using 2 external resistors 73es Rien PA0JME

Sorry group, and now for something dutch Jacques heb je enig idee welk "echt nummer" achter dat code nummer steekt en wat doet het A10 bord maw heb je een stukje van het schema? Het kan denk ik TTL of

Hi Arved, found 1N78BAR in my "junkbox" sealed in lead shroud, usefull? My guess the R is for reversed, I did not test it with an ohm-meter since these diodes are known to be fragile. I kept them for

Hi all, since Doug McArthur VK3UM is silent key since Feb 22 2016, his website is now inaccessible Software can be dowloaded though using the mirror at http://www.vk5dj.com/doug.html 73es Rien PA0JME

Richard in Germany they call them Flachsenker, I bought them at https://www.zujeddeloh.de/produkte/bohren_senken_reiben/senken_-_498.html I don't know how they are called in either Dutch or English Be

Hi all, my 2 mastheadboxes for 13cm and 9cm are heated by 24V @250mA/box, so about 6Watts each in RXmode. At this very moment outside temperature /humidity is 2.9degC and 80% resp, while internally 15