[amsat-bb] MFJ-916BMN duplexer

[KI7UNJ Tucker]

Mike,

The 0.5w while is on the spec sheet for the BLP.... many of us use it and
use way more than 0.5w.

https://twitter.com/w8lid/status/1172144221081542657?s=20


As someone who has an IC-9700, I do not suffer desene with mode J (and
don't use the BLP on my setup).  I'm betting those who do have J-Mode
issuses have 1 of 2 problems  1) higher SWR or 2) running to much power.


As I stated in a previous e-mail:
I have to say I'm not getting desense with my IC-9700,  unless I'm using
more power than is needed or should be using on the SSB Sats.

Maybe try to lower your power? RS-44 can easily be worked at around 2% (2w)
power and I work SO-50 at 0-3% every time (500mw-3w)

On Thu, May 14, 2020 at 8:48 AM Michael Walker via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> Just to mention on the BLP-200+, you can't transmit through it as it has a
> 0.5 watt maximum RF power.  It is designed for a receive-only lines.
>
> Mike va3mw
>
> On Thu, May 14, 2020 at 11:32 AM Don KB2YSI via AMSAT-BB <
> amsat-bb at amsat.org>
> wrote:
>
> > I have used a MFJ-916B in my portable setup and it was the biggest
> > improvement I have made to my setup. I have since moved to a
> Mini-Circuits
> > BLP-200+ as I use 2 radios verse a single full duplex radio.
> >
> > On Thu, May 14, 2020 at 10:14 AM BeetleJerald Oliver via AMSAT-BB <
> > amsat-bb at amsat.org> wrote:
> >
> > > I am still having problems with the 9700 on Mode J.  Has anyone yet
> used
> > > the MFJ-916BMN duplexer on their system?  I like the fact that it is
> > > designed for outdoor use and can be mounted to the mast.  I have a
> comet
> > > CF-416, but would have to build a waterproof box for it if used and
> left
> > on
> > > the tower....Any thoughts
> > > 73
> > > Jerry
> > > KJ4EU
> > > _______________________________________________
> > > 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
> > >
> >
> >
> > --
> > 73,
> > Don KB2YSI
> > https://www.hamqth.com/kb2ysi
> > _______________________________________________
> > 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
> >
> _______________________________________________
> 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
>


-- 
*Casey Tucker  KI7UNJ*
https://twitter.com/KI7UNJ