[TowerTalk] WTB Top Ten Devices A/B Station Selectors

[Tim Duffy]

DX Engineering acquired Top Ten Devices. We sold all the stock we had. We
are in the process of redesigning the switch.

Look for a new improved switch in the future.

73
Tim K3LR @ DX Engineering

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Jim
Brown
Sent: Sunday, January 30, 2022 2:53 PM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] WTB Top Ten Devices A/B Station Selectors

Have you ever measured the SWR through them? It's not pretty. RF design 
is terrible, using chassis return as the RF path due to circuit board 
layout that breaks the "ground" layer under signal traces. AND this 
CAUSES crosstalk on higher bands. I had some back-to-back in my station, 
but had to do surgery on the circuit boards to make them useable on the 
higher bands. Eventually replaced them with back to back Tohtsu relays.

73, Jim K9YC

On 1/30/2022 11:33 AM, David Needham wrote:
> I really like the Top Ten Devices A/B Station Selectors (Part number
> TDS-AB-Selector) as 2x1 coax switches with high isolation between ports
for
> setting up a Multi transmitter contest station. Unfortunately, it looks
> like they are now out of production. If anyone has any they are willing to
> sell, please contact me off list at AA4VT dot Dave at Gmail dot com.

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