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UploadedDescription
23 Apr 2023TS-440S PLL out of lock on portions of a band
05 Jan 2020Cmos battery to be replaced on Kenwood TS-440
25 Oct 2017PA Cooling Fan Mod on Kenwood TS-440S
17 Dec 2016Definitive cure to hiss in audio chain. Quiet audio in TS-440
12 Dec 2016TS-440: Service manual error adjust VCO 1 and IF SHIFT fréquency
22 Jul 2016S-Meter Adjust - Service Manual Error on TS-440S
06 Aug 2015Kenwood TS440S PLL board VCO5 problems
20 May 2014TS-440 connecting a PC to the ACC1 jack on rig for computer control
03 Mar 2014How to Add DSP to TS-440
13 Feb 2011TS-440 calibration Cable
05 Oct 2009Carrier potmeter modification for Kenwood TS440 radio
03 Oct 2009PLL drift / shaking TS-440
16 Jun 2009Kenwood TS440S Mod's for weather over 30* C of ambiance.
20 May 2009No On Air / Tune / Notch lights on panel
22 Nov 2008TS-440S/AT stuck in TX mode
05 Nov 2007TS-440S audio output problem
12 Sep 2007Simple fix when dots display on readout for TS-440SAT
25 Jun 2005Replacing the memory battery in the Kenwood TS-440S
08 Jan 2005Bandscope-Schaltung mit TS-440S und SM-220 (BS-8)
01 Jan 2005Modifications for TS-440S in FM mode
12 Jan 2004IF-10 (RS-232) interface for TS-440s and TS-680s
08 Dec 2003TS-440 Displays dots on certain bands
24 Jul 2001Circuit Improvements for the TS-440S
15 Oct 2000TS440S mod for improved receive sensitivity of 0.5 to 1.6MHz
21 Apr 2000TS-440S PLL unlock due to VCO #1
21 Apr 2000TS-440S PLL unlock due to VCO #5
16 Apr 2000TS-440S Intermittent operation
13 May 1999TS-440S SSB Power-adjustment
19 Jul 1998TS-440S display calibration
19 Jul 1998TS-440S modification to use antenna tuner
19 Jul 1998A few adjustments you should know
19 Jul 1998Serial interface
19 Jul 1998Undocumented feature
19 Jul 1998Possible cure for TS440 showing dots only on display
19 Jul 1998TS-440 Fan Temperature Modification
19 Jul 1998Connection of the KENWOOD TS440S to a DATA
19 Jul 1998Kenwood Computer Interface Instructions
19 Jul 1998TS-440S increase the power by ALC control
19 Jul 1998TS-440 with PIN-Diods
19 Jul 1998TS-440S Operation with the MC-85
19 Jul 1998TS-440S Notch filter low frequency improvements
19 Jul 1998TS-440S Protecting Q33
19 Jul 1998TS-440S Case Screws binding in the heat sink
19 Jul 1998TS-440 RX Audio Mods
19 Jul 1998TS-440S Digital Audio Modification
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This forum message list include all message for that is related to TS-440, this include message that also is related to articles. If the message is relate to an article, the article can be selected next to each message.

Date Author Subject
1. 31 Jan 2023 Hartley Grant Jr. (0) No audio FM mode
2. 23 Oct 2019 Nilo (0) Ts440 freq. Varies
3. 12 Sep 2016 James D. Gilbert (2) IF shift using optional TS440 SSB & CW filters
4. 15 Jul 2012 Anonymous (0) Illustrations to TS-440S antenna tuner mod View article
5. 18 May 2012 Graziano (0) How to eliminate the tuning beep using PC ?
6. 02 Jan 2008 Raynard Merritt (0) Confused View article
7. 18 Jul 2007 N5TBU (0) clip a lead?? View article
8. 14 Apr 2004 William (0) Power mod
9. 29 Mar 2004 Anonymous (0) TS-440 Audio/IF mods View article
10. 30 Jan 2004 Manfred, XQ2FOD (0) The problem in short View article
11. 11 Nov 2003 Alan (0) Not very good - To reduce to 10 or 50 Watts try... View article
12. 04 Jul 2002 yv5abh@cantv.net (0) Kenwood TS-440S. Only dot on display View article
13. 25 Jun 2002 Mario, DJ7UA (0) Author is DJ7UA View article


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