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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