TenTec
[Top] [All Lists]

Re: [TenTec] Dirty Transmitters

To: tentec@contesting.com
Subject: Re: [TenTec] Dirty Transmitters
From: Jim Brown <k9yc@audiosystemsgroup.com>
Reply-to: k9yc@arrl.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 8 Dec 2015 19:01:19 -0800
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
On Tue,12/8/2015 4:43 PM, terry foskey via TenTec wrote:
You should do your part and buy the best performing rigs out there and as the 
bar continues to get set higher, you should sell and again buy the best.

Yes, and I've done exactly that. My rigs are all K3s. I sold a pair of FT1000MPs to buy the first one. :)
That said, the last two sentences in the report echoed my comments, in summary -  most 
Hams don't care and will continue to buy what some of you classify as dirty.  I would 
also offer that Hams operating these "Dirty" rigs aren't violating any FCC or 
statutory regulations.

Oh, but they ARE in violation. FCC Rules clearly state that hams SHALL use the minimum bandwidth needed for the transmitted mode. ARRL Labs tests most new rigs when they are introduced. You can find a comparison of their measurements about 20 of those rigs here. http://k9yc.com/TXNoise.pdf Their tests clearly show that the K3 is the cleanest of all mass-produced rigs, and that the Kenwood TS590S is a close second. The 590S is not an expensive rig, selling for about $1500 last I looked. Those other rigs -- Yaesu and ICOM, use 2-4x the bandwidth of the K3, and they do that because they are VERY careless about their design of CW keying!

  So it comes down to opinions.  Opinions with the only ability to change the 
status quo is to talk with their pocketbooks.  I don't believe the opinions 
expressed in these forums will do little to sway Yaesu, which seems to be the 
worst offender according to commentary.

I don't place much credence in opinions, and I almost never express opinions. When I say something about a technical issue, I am stating facts as I have taken the time to learn them.

  I plan to operate my dirty beasts (Yaesu and Flex) in a multi-station setup 
later this coming year, we will see what a menace they really are....The Yaesu 
FTDX 1200 was operated last year with no issues.  We will run some tests this 
year in an effort to identify impacts.

No need to "run some tests" unless you're going to improve on what ARRL Labs is doing with very expensive and state of the art test gear.

73, Jim K9YC
N5TF,Terry

-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Jim Brown
Sent: Tuesday, December 08, 2015 6:40 AM
To: tentec@contesting.com
Subject: Re: [TenTec] Dirty Transmitters

On Mon,12/7/2015 8:41 PM, rick@dj0ip.de wrote:
IMO, the 5000 should not be allowed on the bands unless QRP.
Likewise with most Yaesu and ICOM rigs.

73, Jim K9YC
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec

_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec

<Prev in Thread] Current Thread [Next in Thread>