[amsat-bb] Source for affordable bias-tees?

[Mike Wilhelm]

If you have the time to work with surface mount parts, Marki Microwave
sells some SMT bias Tee's for around $50.  I didn't see a spec for max RF
level on their web site but it might be worth looking into.  I bought a few
of them one time to protect the ports of my VNA by grounding the DC
input terminal.  They've worked very well.

Mike



On Tue, Jun 2, 2020 at 9:45 AM k0ekl--- via AMSAT-BB <amsat-bb at amsat.org>
wrote:

> I'm purchased 2m and 432 preamps for my satellite antenna system and both
> will require external bias-tees for power. Looking around on both US and
> UK/EU websites I've found bias-tees that cost almost as much or more than
> the preamps did. The inexpensive devices I've found are receive-only and
> meant for SRD users.
>
> Does anyone know of a source of bias-tees that cost less than $100.00
> each, have decent specs on 2m and 432 and can withstand a transmit power of
> 50 or 100 watts. (Yes, I know I don't need to run 50 or 100 watts for
> satellite work but I don't want devices that will fail the first time I
> accidentally  transmit "QRO".
>
> Thanks
>
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
>