Butch:

What kind of a screw-driver are you currently using?

As you may recall, I've been having trouble with the Predator that is now on
the RV.  I've sometimes thought of replacing it, but the cost is rather
steap.

Just looking at options for the upcoming camping season.  ... At least it's
fun to think about right now in the dead of winter.



Tom Behler: KB8TYJ


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Butch Bussen
Sent: Wednesday, January 01, 2014 6:12 PM
To: [log in to unmask]
Subject: Re: MFJ Noise Bridge Again

I wouldn'tuse both tuners.  Use one or the other.  If you tune for mininum
noise, your match should be 50 ohms.  It is a little tricky some times, you
neexc to cut way back on the rf gain or it is hard to find the dip.  I run
one here on my screw driver and like it a lot.
73
Butch
WA0VJR
Node 3148
Wallace, ks.


On Wed, 1
Jan 2014, Tom Behler wrote:

> Hi, all, and Happy New Year!
>
>
>
> Earlier last week, I borrowed an MFJ 212 noise bridge from a local ham 
> friend, just to try it out here at the home QTH.
>
>
>
> It actually was fairly easy to use, and I like the idea of being able 
> to tune an antenna without transmitting a signal, which I believe to 
> be the main benefit of the device to begin with.
>
>
>
> As a result, I am probably going to purchase one, with the idea that 
> it might be useful in the RV, where my antenna situation is quite
challenging.
>
>
>
> I have an old MFJ 901B versatuner that I could take out to the RV to 
> use as the tuner in conjunction with the noise bridge, but I have a 
> couple of questions.
>
>
>
> 1.  Am I correct in assuming that, if I can eliminate the pulse noise 
> from the noise bridge, I am safe to operate?  I have an old talking 
> SWR meter that I purchased from Remy Simard (VE2AW) back in the 1990's 
> that I could employ to doublecheck things, but it is rather cumbersome 
> to use, especially in the RV where space is at a premium.
>
>
>
> 2.  Someone suggested that I could first tune my antenna with the 
> noise bridge and versatuner, and then employ the TS480's auto-tuner to 
> totally finish the job.  However, with two tuners now in the system, 
> wouldn't that further decrease the amount of RF power that ultimately gets
to the antenna?
>
>
>
> As I'm sure you can tell, I'm not an expert on these things.
>
>
>
> I just want to fully understand the functions and possible usefulness 
> of an MFJ noise bridge, especially for my RV operations, before I 
> actually make the purchase.
>
>
>
> Tom Behler: KB8TYJ
>
>
>
>