|
SSB - Electronic SP-23 Preamp
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:
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:
|
By
Rien Eradus PA0JME
· #60432
·
|
|
not hearing 13cm GB3MHz anymore
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:
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:
|
By
Rien Eradus PA0JME
· #60431
·
|
|
not hearing 13cm GB3MHz anymore
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
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
|
By
Rien Eradus PA0JME
· #60427
·
|
|
not hearing 13cm GB3MHz anymore
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, 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
|
By
Rien Eradus PA0JME
· #60424
·
|
|
On 13cms now
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, 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
|
By
Rien Eradus PA0JME
· #59576
·
|
|
GB3MHZ beacons wobbling on both 23 and 13 cm
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 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:
|
By
Rien Eradus PA0JME
· #59430
·
|
|
Micronde coax relay datasheet?
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 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:
|
By
Rien Eradus PA0JME
· #59429
·
|
|
GB3MHZ beacons wobbling on both 23 and 13 cm
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 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
|
By
Rien Eradus PA0JME
· #59424
·
|
|
GB3MHZ beacons wobbling on both 23 and 13 cm
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 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
|
By
Rien Eradus PA0JME
· #59421
·
|
|
3.4GHz flat panel antenna
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
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
|
By
Rien Eradus PA0JME
· #59402
·
|
|
Black ADF4351
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, 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/
|
By
Rien Eradus PA0JME
· #57847
·
|
|
Black ADF4351
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
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
|
By
Rien Eradus PA0JME
· #57844
·
|
|
Black ADF4351
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
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
|
By
Rien Eradus PA0JME
· #57838
·
|
|
10MHz buffer amplifier
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
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
|
By
Rien Eradus PA0JME
· #53290
·
|
|
Divider by 2 ic for HP5343
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
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
|
By
Rien Eradus PA0JME
· #52122
·
|
|
Looking for a 1N78BR detector diode
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 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
|
By
Rien Eradus PA0JME
· #51779
·
|
|
13cms interdigital filter
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
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
|
By
Rien Eradus PA0JME
· #47846
·
|
|
drill designations~ new years brain teaser
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
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
|
By
Rien Eradus PA0JME
· #47183
·
|
|
Masthead boxes revisited
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
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
|
By
Rien Eradus PA0JME
· #46314
·
|