DX Engineering only sells the low power VA6AM devices. Pavel has a very good
selection of high power devices that are the best available.
I am a very happy user/owner of a full set of his 2KW filters along with one of
his mid-power triplexers that handles my C3S quite well with my KPA500 driving
the stack.
Check his stuff out: https://va6am.com/
73,
Jack, W6FB
> On Nov 17, 2025, at 4:54 PM, Randy Farmer <w8fn@windstream.net> wrote:
>
> I'm investigating upgrading my station from its present 500W capability to
> 1500W. I've located sources for most of the up-rated bandpass filters and
> other hardware required for the project, but can't seem to find a source for
> a duplexer to split a 80-40 dipole for SO2R use. I'm presently using one of
> the Low Band Systems 500W 80/40/20 triplexers for this function. LBS
> apparently makes a 1500W 80/40 duplexer, but it appears the LBS stuff is no
> longer available in the USA. Does anyone have or know of a suitable 1500W
> unit? I do NOT need it to be rated for 100% duty cycle since I'm only
> interested in CW and occasional SSB use, but it needs to hold up under
> contest conditions with a full power amplifier.
>
> 4O3A makes a nice 20/15/10 triplexer, but they don't have any high power
> 80/40 units. Antennas-Amplifiers (distributed by DX Engineering) makes nice
> HP bandpass filters, but not a triplexer or duplexer. VA6AM (also distributed
> by DX Engineering) doesn't have any high power devices.
>
> 73...
> Randy, W8FN
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