Technical Corner

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MW sufficient ground ? MW sufficient ground ? Schmellenschmellen · July 11, 2026, 12:12:34 pm I think about a dirt cheap LPAM TX ground. Does anyone know whether a bit of old CB antenna piece of say 80cms of aluminiumtube ... 4 Replies · 113 Views Started by Schmellenschmellen	4 Replies 113 Views	July 18, 2026, 08:29:26 pm by Schmellenschmellen
Kyle Drake - LPAM Handbook - PDF Download Kyle Drake - LPAM Handbook - PDF Download ZoZo · November 26, 2025, 01:07:25 pm Kyle Drakes - Low Power AM Broadcast Handbook which might be interesting to some. It gives some basic theory and simply designs ... 2 Replies · 874 Views Started by ZoZo	2 Replies 874 Views	July 10, 2026, 01:16:04 pm by Schmellenschmellen
ZoZo FM PLL Driver / Exciter ZoZo FM PLL Driver / Exciter ZoZo · November 02, 2025, 07:42:29 am Here is the ZoZo FM PLL MK3 PCB Revision which is now a project from a few years ago. Below is attached all the Gerber files and... 4 Replies · 4814 Views Started by ZoZo	4 Replies 4814 Views	April 15, 2026, 05:19:35 pm by Nick
Pi linking system Pi linking system MonTaylor · March 11, 2026, 08:05:03 am here is my pi linking system. the TX is a rpi3b with a usb wifi dongle and a usb sound card plugged in. the software used to con... 0 Replies · 1123 Views Started by MonTaylor	0 Replies 1123 Views	March 11, 2026, 08:05:03 am by MonTaylor
Stereocoder design Stereocoder design Dave · June 08, 2024, 12:49:28 am Design for a stereocoder. 27 Replies · 9123 Views Started by Dave « 1 2 »	27 Replies 9123 Views	February 14, 2026, 11:18:25 pm by Albert H
Chinese Rigs Chinese Rigs Steve West · November 25, 2025, 06:58:32 am I've seen one of these on a spectrum analyser with my own eyes. Sprogs galore!Recently found this interesting video and it seems... 5 Replies · 3873 Views Started by Steve West	5 Replies 3873 Views	February 10, 2026, 02:33:41 am by Albert H
MC145151P2 Low Phase Noise MC145151P2 Low Phase Noise RIGMO · November 18, 2025, 09:12:56 pm HIQuestion for all sopecialy for Alber HHow To achive speed and stability do anyone heave good solution with outpus φR, φV Phase... 1 Replies · 1336 Views Started by RIGMO	1 Replies 1336 Views	February 02, 2026, 12:16:59 am by Albert H
jvok's Sleazy Listening Stereo Coder jvok's Sleazy Listening Stereo Coder jvok · November 17, 2025, 06:36:37 pm Looks like all the info on this has been lost after Radionecks went down. I even checked Wayback Machine but it didn't archive t... 10 Replies · 5735 Views Started by jvok	10 Replies 5735 Views	February 02, 2026, 12:07:08 am by Albert H
PCS must be the best PLL rig people now PCS must be the best PLL rig people now Schmellenschmellen · December 04, 2025, 04:36:01 pm I do not need much in the way of radio kit myself as I don't really TX. Mainly listening here.But they seem to have amazing PLL'... 16 Replies · 8097 Views Started by Schmellenschmellen « 1 2 »	16 Replies 8097 Views	January 09, 2026, 10:44:44 am by MonTaylor
hardware silence detector . hardware silence detector . Radioclick1fm · December 28, 2025, 09:42:04 am good schematic if , anyone is going to make a pcb , please share it .i would like to try , Honestly a freind long time make me p... 1 Replies · 3987 Views Started by Radioclick1fm	1 Replies 3987 Views	January 03, 2026, 09:29:39 pm by Albert H
500W LPF 500W LPF ZoZo · June 15, 2024, 09:23:48 pm Been busy working the RadioBuilders own version of a 500W FM Broadcast LPF.Here's a sneak preview of the PCB [ Guests cannot vie... 27 Replies · 10160 Views Started by ZoZo « 1 2 »	27 Replies 10160 Views	January 03, 2026, 09:24:22 pm by Albert H
Does anyone know how to download from here Does anyone know how to download from here fmradiotuner1 · December 18, 2025, 09:44:19 am Does anyone know how to download from hereI would like to DL or torrent this but really dont get it.https://system18.net/2025/12... 6 Replies · 2999 Views Started by fmradiotuner1	6 Replies 2999 Views	December 28, 2025, 09:40:15 am by Radioclick1fm
What bleeder resistor What bleeder resistor radionortheast · December 19, 2025, 08:42:35 am With a long pole as aerial you get the wind blowing can built up static, also from thunderstorms, in the loft you still get the ... 2 Replies · 2042 Views Started by radionortheast	2 Replies 2042 Views	December 22, 2025, 09:22:49 am by radionortheast
12m antenna mast very practical 12m antenna mast very practical Schmellenschmellen · December 05, 2025, 06:01:23 pm A lot of fun could be had with a copper wire ground plane antenna and one of these. I imagine you could tape one on made from an... 7 Replies · 4995 Views Started by Schmellenschmellen	7 Replies 4995 Views	December 12, 2025, 02:09:18 pm by radionortheast
NRG FOUNDER (veronika) Stephen J Moss NRG FOUNDER (veronika) Stephen J Moss RIGMO · December 09, 2025, 08:50:24 am like everything today, capitalism carries on today. the only generator that is resistant to deviation is the seesaw used by Vero... 0 Replies · 864 Views Started by RIGMO	0 Replies 864 Views	December 09, 2025, 08:50:24 am by RIGMO
RDS PROJECT 1 RDS PROJECT 1 RIGMO · November 18, 2025, 07:11:31 pm IS posible Build one as on PDF document https://www.youtube.com/watch?v=zWBzTjaiCIM 3 Replies · 2560 Views Started by RIGMO	3 Replies 2560 Views	November 22, 2025, 09:17:48 pm by Radioclick1fm
RDS PROJECT 2 RDS PROJECT 2 RIGMO · November 18, 2025, 10:02:45 pm RDS project 2 http://www.g.laroche.free.fr/english/hardware/RDS_USB_ATmega32.html# 0 Replies · 2399 Views Started by RIGMO	0 Replies 2399 Views	November 18, 2025, 10:02:45 pm by RIGMO
Sinus Limiter Sinus Limiter eye102 · November 15, 2025, 07:17:51 pm Sinus Limiter files pcb parts list see attachment 2 Replies · 2058 Views Started by eye102	2 Replies 2058 Views	November 17, 2025, 05:49:02 pm by Radioclick1fm
NRG PRO IV NRG PRO IV ZoZo · November 08, 2025, 09:41:48 am Here is the NRG PRO IV pcb. This version has only had a minor rework to the mounting holes and the tracing for one track in the ... 7 Replies · 3389 Views Started by ZoZo	7 Replies 3389 Views	November 17, 2025, 07:34:14 am by MonTaylor
Smiley AMP Smiley AMP MonTaylor · November 13, 2025, 07:07:03 am Does anyone know where i can find details on the smiley AMP? i have a driver board and would like a matching AMP. the picture wa... 2 Replies · 3465 Views Started by MonTaylor	2 Replies 3465 Views	November 17, 2025, 07:27:02 am by MonTaylor
Full Sinus Build Full Sinus Build MonTaylor · June 02, 2025, 02:50:17 pm Here is a full sinus build which consist of a limiter, RDS and a 1w PLL driver 8 Replies · 11717 Views Started by MonTaylor	8 Replies 11717 Views	November 16, 2025, 08:59:59 pm by Mirage
AM Broadcast 6KHz Compressor Limiter AM Broadcast 6KHz Compressor Limiter ZoZo · November 08, 2025, 06:20:22 am Here is a simple yet affective audio processor for AM / Medium Wave broadcasting using just one quad op-amp. In fact only 3 of 4... 1 Replies · 1988 Views Started by ZoZo	1 Replies 1988 Views	November 15, 2025, 11:24:40 am by Multiplex
Home Made Dummy Load Home Made Dummy Load AM081 · September 12, 2021, 04:52:21 pm There comes a time when when we're all going to need a dummy load at some point. The easiest option for most is to just simple b... 5 Replies · 7605 Views Started by AM081	5 Replies 7605 Views	November 06, 2025, 01:18:29 am by RIGMO
RPI to control a TX RPI to control a TX MonTaylor · July 24, 2025, 07:28:30 am im planning on using a RPI 4b to send a stream to a TX. i want to add a touch screen to the RPI and use it to turn the power on ... 0 Replies · 5884 Views Started by MonTaylor	0 Replies 5884 Views	July 24, 2025, 07:28:30 am by MonTaylor
CraneFly LPAM Transmitter CraneFly LPAM Transmitter ZoZo · March 29, 2025, 07:35:19 am Below is a now obsolete PCB design for a simple AM Medium Wave Transmitter, ideally design to work at the upper region of MW in ... 2 Replies · 6429 Views Started by ZoZo	2 Replies 6429 Views	July 08, 2025, 06:52:37 pm by MonTaylor

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