There are two ways to do it....The easy way and of course the way I did it:)
I will do a write up on January.
But as a summary I added a de-emphasis network so
that I could use voice alert with the original
volume, speaker, and PL decoder. In other words
leave the factory audio path intact. After all of
the PL filtering, but before the monitor switch I
tapped into the audio, added an amplified
de-emphasis network, the output of which is the input of the version .9 T2-135.
I will perform decoding analysis with the write up.
Mark
KC5EVE
At 07:51 AM 12/18/2009, you wrote:
Hi Mark,
I would like to hear more about the Phoenix
install. I used a Phoenix until recently with my
OT2. I will be running a FT1500 again mobile.
The Phoenix is moving to a digi site (with the KPC3+).
Thanks!
Best regards,
Fred
----------
From: [email protected]
[mailto:[email protected]] On Behalf Of Mark Cheavens
Sent: Thursday, December 17, 2009 21:35
To: [email protected]
Subject: Re: [tracker2] Re: T2-135 Decode Performance (again...)
And put the original in another radio that has a
de-emphasis network (Fits easily in a GE Phoenix!)
Mark
KC5EVE
At 07:27 PM 12/17/2009, you wrote:
Thanks for the comments. I have a local event
coming up at the end of February for which I
really wanted to have an effective fill-in digi
available. I used my existing board last year
for the same event and it was OK but certainly less than ideal.
Based on what I've heard here and in past posts
as well, I've ordered a new board and will keep
the original one as a spare. I had actually
started considering acquiring a KPC-3 for use
with another radio, but this arrangement is so
compact that it's hard to beat (providing it
works satisfactorily - and it sounds as if the
new board will be noticeably better).
Gil, WB2UTI
--- In
<mailto:tracker2%40yahoogroups.com>[email protected],
"Gil" <gcha...@...> wrote:
>
> I have a T2-135 board that is probably
several years old now installed in a DR-135 Mk
II that was new at just about the same time. I
know there's been past discussion about the
decode performance of these units and I'd just
like to get updated on the status of any
fixes. I think there was talk of some hardware
changes to better shape the audio, but I don't know where that stands now.
>
> I do have the latest firmware build
installed (55076) and today I was running my
DR-135 system next to my other home system
using a Yaesu FT-1500M and AGWPE and the home
system is decoding many more transmissions
than the Alinco. I'm using two identical
antennas at the same height with just about
the same transmission line lengths and
quality. The Alinco gets most of the strong
signals, but the weaker ones are not handled
well. The radio hears them (the "meter" moves)
but the board does not decode them.
>
> So, is there a practical fix for those of us
who are a little hesitant about surface mount techniques?
>
> Gil Chapin, WB2UTI
>
