The RF Workbench

We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

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Subject / Started by	Replies / Views	Last post
Beacon Project "Common and Precious II" (OFF air, 6.398.5kHz, 30W) Started by Zazzle « 1 2 3 »	40 Replies 143171 Views	July 24, 2018, 2316 UTC by Zazzle
Beacon Project "Common and Precious III" (OFF air, 26510 kHz, 8W) Started by Zazzle « 1 2 3 »	41 Replies 70870 Views	August 07, 2018, 1754 UTC by syfr
Beacon Project "Common and Precious" (OFF air, 10.237,5kHz, 5W) Started by Zazzle « 1 2 3 4 5 »	61 Replies 68923 Views	July 17, 2018, 1932 UTC by Zazzle
Stretchyman “40W TX” Failure Investigation and Remediation Started by Charlie_Dont_Surf « 1 2 3 4 5 »	60 Replies 50497 Views	January 05, 2024, 0025 UTC by Zane
Beginner class D design Started by OgreVorbis « 1 2 3 4 5 6 »	81 Replies 45794 Views	June 12, 2019, 2122 UTC by OgreVorbis
U-LULU (Updated LULU) for 48 meters, 20 Watt Class-E AM Transmitter Started by Charlie_Dont_Surf « 1 2 3 »	41 Replies 44406 Views	March 21, 2024, 0748 UTC by Charlie_Dont_Surf
Corsair transmitter and 6KHz limiter PCB made up Started by Intruder	14 Replies 35348 Views	April 21, 2025, 1632 UTC by europirate
Audio jacks/plugs as QRP RF wire quick connects Started by i_hear_you « 1 2 »	23 Replies 34075 Views	July 16, 2019, 1844 UTC by Pigmeat
Someone had Corsair II AM TX experience? Started by netsmo62 « 1 2 3 4 »	49 Replies 33616 Views	March 28, 2023, 1531 UTC by Stretchyman
Stretchyman 40w GaN TX is sick Started by Antennae « 1 2 3 »	39 Replies 28470 Views	June 27, 2020, 2100 UTC by Charlie_Dont_Surf
Recommendations: Resistor and Capacitor Assortment Kits? Started by Rob.	4 Replies 27296 Views	August 21, 2019, 1905 UTC by Rob.
Can one use a CW transmitter to transmit voice? *edit, added link Started by Antennae	13 Replies 26337 Views	January 13, 2014, 0336 UTC by ff
A simple shortwave pirate transmitter build Started by makeRF « 1 2 »	17 Replies 25595 Views	September 10, 2013, 1443 UTC by RadioAnarchy
5 watt crystal oscillator transmitter Started by makeRF	12 Replies 25187 Views	October 31, 2014, 0110 UTC by makeRF
Linear power amplifier with 10 W output for frequencies between 100 kHz and 2000 Started by Pieritz « 1 2 »	19 Replies 21945 Views	October 29, 2019, 0730 UTC by Stretchyman
New here, and my journey building a SW xmtr Started by fieldstrength1947 « 1 2 3 4 5 »	60 Replies 21738 Views	October 09, 2018, 1502 UTC by R4002
Loop Stick Ferrite Physical Connections Started by i_hear_you	7 Replies 20956 Views	August 05, 2019, 2100 UTC by i_hear_you
Modulated 5W NS40 Started by Antennae « 1 2 3 »	33 Replies 20820 Views	September 11, 2020, 1311 UTC by syfr
High Powered Pirates Started by redhat « 1 2 »	26 Replies 18549 Views	June 15, 2014, 1317 UTC by OMCS
Any DDS 200 watt AM Transmitters or kits Started by digitalmod « 1 2 »	29 Replies 18241 Views	January 19, 2018, 1143 UTC by ChrisSmolinski

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