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Topic Forum Author Created Posts Views Activity
Open Two-tone Transmit IMD Test Procedure Equipment Testing and QST Product Review N7WS Oct 21st 2017, 17:56 2 3,238 on 23/10/17
by W1VT
Open TWT psu wanted General Technical Q & A M0ELS Jan 25th 2014, 16:38 1 2,055 on 25/1/14
by M0ELS
Open Tying into power cord General Technical Q & A N0CHS Apr 4th 2018, 14:34 3 1,782 on 23/11/19
by W3TDH
Open types of 160m antennas Antennas, feed lines, baluns and antenna tuners rhkeng May 22nd 2019, 18:11 2 1,061 on 23/5/19
by W1VT
Open Tyying to understand parallel dipoles. Antennas, feed lines, baluns and antenna tuners AC2MM Jul 22nd 2017, 14:32 3 1,663 on 24/7/17
by W1VT
Open Ugly Balun Core Diameter: Does it matter? Antennas, feed lines, baluns and antenna tuners KG4UMB Mar 30th, 14:21 2 259 on 30/3/20
by W1VT
Open UHF Contest VHF Contesting NQ8A Jun 7th 2016, 13:21 2 4,680 on 13/11/18
by WB5EMX
Open UHF weak signal Ops VHF and up "Weak Signal" Operating wb4tc Aug 2nd, 18:35 2 44 6 days, 2 hours ago
by W1VT
Open ULF - transmitting below 8.3 khz General discussion about technology and policy KJ4CYV Aug 6th 2017, 13:22 1 2,608 on 6/8/17
by KJ4CYV
Open Un identified signal RFI - Discussion and Q&A Mar 3rd 2019, 05:33 2 1,607 on 4/3/19
by W1VT
Open Underground fence vs ground plane Antennas, feed lines, baluns and antenna tuners welchr965 Mar 7th, 12:25 1 317 on 7/3/20
by welchr965
Open Understanding SWR Antennas, feed lines, baluns and antenna tuners ralphm Jun 12th 2017, 21:14 4 2,432 on 29/8/19
by N9XR
Open Uniden BC 100XL Vintage Gear - Restoring and Operating W9GDK Jan 30th 2017, 19:39 6 4,151 on 1/2/17
by W9GDK
Open Uninstall Aluma MP1/MP-2 General Technical Q & A KQ4B Sep 29th 2011, 22:29 1 2,659 on 29/9/11
by KQ4B
Open Universal Antenna Antennas, feed lines, baluns and antenna tuners Bilbotc2 Nov 2nd 2015, 14:48 4 1,373 on 2/11/15
by AI4BJ
Open Unknown Coaxial Switch General Technical Q & A HS0ZIL Sep 17th 2013, 12:52 1 1,701 on 17/9/13
by HS0ZIL
Open Unknown digital mode heard Digital modes and operation WB6DKH Sep 9th 2014, 00:56 1 2,072 on 9/9/14
by WB6DKH
Open Unknown mode on ~ 14.073 ? Digital modes and operation 0001490519H80 Jul 16th 2017, 15:50 4 1,895 on 17/7/17
by W1VT
Open Unlimited space with some limits - questions Antennas, feed lines, baluns and antenna tuners kc4rp Jul 14th 2018, 08:59 3 1,262 on 30/7/18
by kc4rp
Open Unun or common mode choke Welcome to the ARRL Forums kd8azo Mar 19th 2015, 18:55 5 3,535 on 20/3/15
by kd8azo

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