[amsat-bb] TS-2000 Vintage Question

[D. Craig Fox]

If I recall correctly, persons posting on the TS2K yahoo group noted that the finals originally were bipolar devices and that Kenwood upgraded those to mosfets before the upgrade.  This discussion concerning how to choose a used TS2000 appears around July 5, 2017.
As for the NB, mine is on all the time and provides “some” relief, but only on USB, and yes on the sats.

Craig
N6RSX

From: John Geiger [mailto:af5cc2 at gmail.com]
Sent: Monday, February 5, 2018 5:26 PM
To: D. Craig Fox <DFox at rwglaw.com>; AMSAT BB <amsat-bb at amsat.org>
Subject: Re: [amsat-bb] TS-2000 Vintage Question

What about the MOSFETs made them an upgrade?  I was unaware of the change, although I do feel that somewhere along the line Kenwood changed the noise blanker circuit and that the NB in older TS2000s was better.
73 John AF5CC

On Mon, Feb 5, 2018 at 5:29 PM, D. Craig Fox <DFox at rwglaw.com<mailto:DFox at rwglaw.com>> wrote:
As far as I know, the birdie problem has been there from the start. In 2008 there was an issue with ceramic filters. I have a vintage 2002 (serial 407XXXXX) and have never had an issue with it. You can always check out the yahoo groups TS2000 archives.  According to the TS2K group, after 2008, Kenwood started using mosfets which most feel was a significant upgrade.

Craig
N6RSX

-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org<mailto:amsat-bb-bounces at amsat.org>] On Behalf Of Richard Lawn
Sent: Sunday, February 4, 2018 2:00 PM
To: Amsat BB <amsat-bb at amsat.org<mailto:amsat-bb at amsat.org>>
Subject: [amsat-bb] TS-2000 Vintage Question

I'm contemplating trading a IC-7300 for a TS-2000. I need a backup radio for satellites and EME. Are there any issues you users know about the 2000 vintage 2002? Was it plagued with birdies in the sat passband?

Rick, W2JAZ
_______________________________________________
Sent via AMSAT-BB at amsat.org<mailto:AMSAT-BB at amsat.org>. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb


(If this message is spam, please report it to IT Dept.  Thank you.)
_______________________________________________
Sent via AMSAT-BB at amsat.org<mailto:AMSAT-BB at amsat.org>. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb



Click here<https://www.mailcontrol.com/sr/h1MM7pJPGNfGX2PQPOmvUqy!8K4P2+309Brs6NW4Oo7nOBhJysdFXzGUaOgDBzSGDfAfGI03HZ35pl0FDW8fzw==> to report this email as spam.