TenTec
[Top] [All Lists]

Re: [TenTec] Think about trading for another HF rig? ; the grass isn't

To: tentec@contesting.com
Subject: Re: [TenTec] Think about trading for another HF rig? ; the grass isn't
From: Bill Tippett <btippett@alum.mit.edu>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 20 Sep 2009 15:31:05 -0400
List-post: <mailto:tentec@contesting.com>
Arthur Trampler wrote:

> I should have been more clear...that diversity rx with idential receivers is
not available.

> Maybe in the real world it doesn't make a difference (whether it's the Orion
primary/sub RX or two identical K3 receivers).

> I'll have to go listen...

Speaking as a former Orion owner for 4 years, it does make a difference. Try listening in a large pileup or in a crowded contest. Orion's Main RX is on a par with the K3's, but its Sub is extremely poor...to the point of being unusable with any strong signals around. On Sherwood's table, the Orion Sub-RX's IMD performance (measured by ARRL at 59 dB for 5 kHz spacing) would rank near the bottom of his list.

If Orion had delivered "true diversity", meaning two phase-locked receivers with good RF performance, I would probably still have mine today. Unfortunately, due to the way the synthesizer frequencies were derived, there is a constant 2-6 Hz offset (audible warble) between the receivers. And of course you also have the strong signal performance issues mentioned above.

In reading reviews by anyone, you should always "consider the source". G4ILO is not at the top of the list of people whose opinions I respect. His liking of the TS-2000 speaks volumes to me. Personally I would rate reviews by W8JI, ON4UN, 5B4AGN and a few others as being much more meaningful for my style of operating (low band DX-ing, contesting, etc).

Orion still has one of the finest Main receivers available today. In fact in several respects I actually prefer it to the K3. With a few changes, it could be a viable competitor offering true diversity that would compete very favorably with the K3 or Flex 5000 (today's only rigs offering true diversity). I hope some day Ten-Tec will revisit Orion and address some of the issues mentioned above. I would like not to believe 5B4AGN's summary comment: "Enormous potential ? squandered".

73, Bill W4ZV

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