Technical Corner

Building an EFHW (End Fed Half Wave) Antenna Coupler

Started by swxx

Replies: 4
Views: 45,814

September 01, 2017, 02:43:26 AM
by gil

Science Fair Globe Patrol kit shortwave receiver

Started by Sunflower

Replies: 11
Views: 45,892

January 23, 2013, 11:52:37 PM
by Sunflower

Modding MTR4b for 13.8 volts..... possible ?

Started by solaris0121

Replies: 9
Views: 62,469

September 27, 2019, 04:42:14 PM
by gil

NS-40 Class E Transmitter Kit - $32 Shipped

Started by Rob_ma

Replies: 5
Views: 32,178

January 16, 2014, 09:57:33 PM
by gil

PSK-31 RX/TX Via iPad or iPhone

Started by RichardSinFWTX

Replies: 0
Views: 25,370

April 08, 2014, 04:16:05 PM
by RichardSinFWTX

Slow Scan Television Images from the ISS This Weekend

Started by RichardSinFWTX

Replies: 7
Views: 37,344

April 12, 2015, 10:26:03 PM
by RichardSinFWTX

Anderson powerpole for Delta Loop connection?

Started by Rescue9

Replies: 2
Views: 26,262

January 17, 2016, 04:07:04 PM
by Rescue9

Good deal on RG-174

Started by Rescue9

Replies: 4
Views: 28,134

July 09, 2016, 09:03:10 PM
by cockpitbob

GO- Box for the yeasu 450d radio

Started by RebelComms

Replies: 1
Views: 24,985

September 01, 2016, 10:47:07 AM
by gil

Using a Pig-Rig as a backup communication system

Started by raysills

Replies: 3
Views: 26,617

March 19, 2013, 08:48:04 PM
by gil

Ray's Horrifically Abused Heathkit of the Week...

Started by raybiker73

Replies: 1
Views: 24,831

October 22, 2013, 07:57:35 PM
by WA4STO

Getting an old workhorse back on the air

Started by raybiker73

Replies: 6
Views: 29,108

September 07, 2013, 03:49:29 PM
by Archangel320420

Emtech ZM-2 tuner complete!

Started by raybiker73

Replies: 4
Views: 36,866

November 16, 2013, 09:26:30 AM
by Lamewolf

Beginner's DIY Project: Building a Breakout Box

Started by raybiker73

Pages1 2

Replies: 15
Views: 81,777

October 14, 2012, 02:07:07 PM
by raybiker73

Amplifier for Use With QRP Rigs

Started by RadioRay

Replies: 5
Views: 34,491

May 09, 2013, 09:19:17 AM
by KK0G

UParmored KX1 - Now Mk. 5 up one from Mk. 4

Started by RadioRay

Replies: 5
Views: 39,427

October 26, 2014, 07:39:45 PM
by RadioRay

On My Bench Right Now

Started by RadioRay

Replies: 5
Views: 32,015

November 21, 2012, 11:08:27 PM
by cockpitbob

Implanted Bio/electric Generator - For QRP??

Started by RadioRay

Replies: 4
Views: 31,606

January 24, 2014, 05:57:43 PM
by raybiker73

RF Noise Source Found

Started by RadioRay

Replies: 5
Views: 38,958

November 08, 2014, 08:09:35 PM
by RadioRay

Step In the Right Direction : Stand Alone PSK31 Transceiver.

Started by RadioRay

Replies: 5
Views: 39,155

September 22, 2013, 08:22:17 PM
by RadioRay