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
>
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