Hey Tom, let me know your findings about that. I am also using a
480 but don't yet have a manual tuner. I have used the rig on 60
meters with a terrible SWR but just cranked the power down and it
worked alright considering everything. Jim WA6EKS
----- Original Message -----
From: Tom Behler <[log in to unmask]
To: [log in to unmask]
Date sent: Wed, 15 Aug 2012 19:04:07 -0400
Subject: Re: Tuning aids, noise bridges, etc.
Bob:
Well, whenever I tune for low SWR with the 480, I turn the
auto-tuner off.
I assume that, when it is off, it is in completely bypass mode.
And, yes, I agree; I'll prefer a manual tuner over an auto-tuner
any day,
in terms of power loss considerations. I actually have a little
MFJ 901B
manual tuner that I should take out to the RV just to see if it
is more
efficient and less lossy than the TS480's internal tuner.
Tom Behler: KB8TYJ
----- Original Message -----
From: "Bob, K8LR" <[log in to unmask]
To: <[log in to unmask]
Sent: Wednesday, August 15, 2012 7:46 AM
Subject: Re: Tuning aids, noise bridges, etc.
Tom,
since you have an internal tuner in your TS480, it will either
tune the
antenna or you'll get a SWR cw error message. Just remember
that an
internal tuner is not very efficient, it usually sucks out
between 10%
and15% of the output power. As Buddy mentioned, its not a good
idea to
hook
up a watt or SWR meter after an internal tuner as your readings
will be
way
off.
Bob, K8LR, [log in to unmask]
----- Original Message -----
From: "Buddy Brannan" <[log in to unmask]
To: <[log in to unmask]
Sent: Wednesday, August 15, 2012 7:04 AM
Subject: Re: Tuning aids, noise bridges, etc.
Tom,
You do realize that the TW1 won't actually tell you anything
about what =
your internal tuner is doing, right?
I mean, the meter goes before the tuner, which is impossible if
the =
tuner is internal. So, yeah, you'll get your power out racing,
but you =
won't get an active WR reading, at least not as far as your rig
is =
concerned. It's going to see whatever the internal tuner
matches to, but =
the TW1 won't, since it's necessarily in line after the tuner,
not =
before.=20
--
Buddy Brannan, KB5ELV - Erie, PA
Phone: (814) 860-3194 or 888-75-BUDDY
On Aug 15, 2012, at 6:59 AM, Tom Behler <[log in to unmask]>
wrote:
Hi, all.
=20
I have debated about posting this right now, especially in light
of =
all of=20
the traffic regarding Trippy's ccurrent saga, since the question
I'm =
going=20
to ask may involve posting some repetitive info that already is
=
included in=20
the discussion threads. However, I'm hoping that any responses
will =
pull=20
together some knowledge that will help both me and others. If =
responding to=20
this quiry does involve too much repetition, please feel free to
reply =
off=20
list.
=20
As many of you know, I'm struggling with my HF antenna situation
out =
at the=20
RV. In fact, the ham radio withdrawals are getting worse with
each =
passing=20
week, and I may have to take Howard's Zannex advice soon (grin).
=20
I'm actually now very close to trying to put up my extra
102-foot G5RV =
out=20
at the camp site, at least temporarily, just to see how it does.
I'll =
have=20
to get clearance from camp ground management, but I hope the
fact that =
we=20
have a seasonal pass will help.
=20
When I do any antenna work out at the RV, I always take the 1
and only =
TW1=20
that I have, so as to be sure to tune for lowest SWR. It
involves =
tearing=20
my home station apart a bit, but is well worth the sacrifice,
since I =
don't=20
want to become victim to what Trippy apparently just
experienced. I =
realize=20
that the auto-tuner in my TS480SAT should keep me out of
trouble, =
but I=20
just want to be doubly sure.
=20
Anyway, I am in the market for some sort of a tuning aid to use
out at =
the=20
RV. I'd love to get my hands on a used TW1, and will keep a
lookout =
for 1.
=20
In the event I can't find one, mention of noise bridges has been
made =
here=20
on a number of ocasions. Which noise bridge have you guys found
to =
work the=20
best, and can you give me price and other info?
=20
I could also call Handihams to see if they have any of their old
=
tuning aids=20
left, but I believe those are no longer available on a
consistent =
basis.
=20
Thanks as always and 73 from Tom Behler: KB8TYJ
|
