Technical Corner

NS-40 Class E Transmitter Kit - $32 Shipped

Started by Rob_ma

Replies: 5
Views: 35,632

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

Amplifier for Use With QRP Rigs

Started by RadioRay

Replies: 5
Views: 38,795

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

O.K., how much loss can I expect...

Started by White Tiger

Replies: 5
Views: 46,065

March 13, 2013, 12:59:57 PM
by cockpitbob

Free download Crystal Sets to Sideband

Started by underhill

Replies: 5
Views: 41,960

May 11, 2013, 03:05:04 PM
by s2man

RockMite Rides AGAIN!

Started by RadioRay

Replies: 5
Views: 32,920

December 21, 2013, 07:04:33 PM
by KC3AOL

Step In the Right Direction : Stand Alone PSK31 Transceiver.

Started by RadioRay

Replies: 5
Views: 44,070

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

Tiger Tails

Started by Mitch

Replies: 4
Views: 36,215

October 25, 2012, 07:21:35 PM
by Paul

Broke my QRP rig today

Started by KK0G

Replies: 4
Views: 36,562

September 13, 2013, 11:47:40 AM
by RadioRay

Good deal on RG-174

Started by Rescue9

Replies: 4
Views: 31,832

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

Anybody know how to "fine-tune" a Baofeng UV-3R HT?

Started by White Tiger

Replies: 4
Views: 43,387

November 26, 2012, 07:01:16 PM
by gil

Noooooooo! The EFHW tuner has been retired.

Started by gil

Replies: 4
Views: 39,682

November 07, 2013, 01:37:39 PM
by KK0G

Emtech ZM-2 tuner complete!

Started by raybiker73

Replies: 4
Views: 41,287

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

New radio lesson for today!

Started by Mitch

Replies: 4
Views: 32,870

November 20, 2012, 11:17:27 AM
by Jim Boswell

The $11 Frog Sounds CW Transceiver.

Started by gil

Replies: 4
Views: 38,908

August 28, 2017, 09:04:08 AM
by gil

Building an EFHW (End Fed Half Wave) Antenna Coupler

Started by swxx

Replies: 4
Views: 50,294

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

Altoid Tin Receiver

Started by RadioRay

Replies: 4
Views: 44,108

January 26, 2015, 07:29:24 AM
by Lamewolf

The Micro80D and thoughts on the 80m band.

Started by gil

Replies: 4
Views: 31,431

June 09, 2015, 10:22:52 PM
by gil

Implanted Bio/electric Generator - For QRP??

Started by RadioRay

Replies: 4
Views: 35,390

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

The ILERTENNA End-Fed Tuner.

Started by gil

Replies: 4
Views: 38,808

July 16, 2016, 08:51:05 AM
by cockpitbob

New Project: Rebuilding a Heathkit HW-101

Started by Jim Boswell

Replies: 4
Views: 36,924

January 25, 2015, 01:41:16 PM
by gil