So what happens?    What mode are you in?   Does it work on other 
bands/modes? Do you hear beeps or boinks when you push buttons?   Don't 
panic, it's almost always  something simple.

73, Steve KW3A
On 1/1/2014 9:15 PM, Howard Traxler wrote:
> Hi Tom, If I'm right, you have one of these 590s?  Can you, or maybe =
> anyone here, make a suggestion?  I don't understand plenty of the =
> functions on there and right now, I can't make it transmit on 75 meters. =
>   I don't know what I did nor how to undo it.  I push buttons for hours =
> and it just doesn't work.
>
> Thanks and 73.
>
> The Other Howard, WA9RYF
> ----- Original Message -----=20
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, January 01, 2014 6:35 PM
> Subject: Re: Using MFJ Noise Bridge To Determine Antenna Resonant =
> Frequency
>
>
>> Thanks, Dave.
>> =20
>> I'll try to get into the habit of turning it off when it's not in use,
>> basically because it's the safest thing to do.  But, it's good to know =
> that
>> the world probably won't come to an end, and I probably won't let the =
> smoke
>> out of anything if I should happen to forget on occasion.
>> =20
>> Tom Behler: KB8TYJ
>> =20
>> =20
>> -----Original Message-----
>> From: For blind ham radio operators =
> [mailto:[log in to unmask]]
>> On Behalf Of Dave Basden
>> Sent: Wednesday, January 01, 2014 4:25 PM
>> To: [log in to unmask]
>> Subject: Re: Using MFJ Noise Bridge To Determine Antenna Resonant =
> Frequency
>> =20
>> Hi Tom,
>> =20
>> If the noise bridge is between the TS-590 and the amp, you shouldn't =
> have to
>> worry about running too much power into it.  It's only when the bridge
>> follows the amp that you would have to make sure the switch is off.
>> =20
>> 73,
>> =20
>> Dave, W7OQ
>> =20
>> At 10:43 AM 1/1/2014, you wrote:
>>> Lloyd:
>>>
>>> I think Howard and Lowell have answered this question, if I'm=20
>>> interpreting their posts correctly.
>>>
>>> Apparently, if the switch on the noise bridge is off, one can use the=20
>>> amplifier without any risk to the device.
>>>
>>> Tom Behler: KB8TYJ
>>>
>>>
>>> -----Original Message-----
>>> From: For blind ham radio operators=20
>>> [mailto:[log in to unmask]]
>>> On Behalf Of Lloyd Rasmussen
>>> Sent: Wednesday, January 01, 2014 12:12 PM
>>> To: [log in to unmask]
>>> Subject: Re: Using MFJ Noise Bridge To Determine Antenna Resonant=20
>>> Frequency
>>>
>>> I would put the noise bridge in the line between the transceiver and=20
>>> the amplifier.  This would prevent it from seeing your 600 watts.  I=20
>>> don't know about the on-off switch.
>>>
>>>
>>>
>>> Lloyd Rasmussen, Kensington, MD
>>> http://lras.home.sprynet.com
>>> -----Original Message-----
>>> From: Tom Behler
>>> Sent: Wednesday, January 01, 2014 11:40 AM
>>> To: [log in to unmask]
>>> Subject: Re: Using MFJ Noise Bridge To Determine Antenna Resonant=20
>>> Frequency
>>>
>>> Bob:
>>>
>>> Ok on not using both the manual and internal tuners together. ... This =
>
>>> is what I suspected.
>>>
>>> Ok also on confirming Howard's procedure for determining the resonant=20
>>> frequency of an antenna using the MFJ noise bridge.
>>>
>>> Now, I have one more question:
>>>
>>> Here in the home shack, am I correct in saying that I'm ok with =
> keeping=20
>>> the noise bridge in the circuit at all times, as long as I am=20
>>> absolutely 100% sure to turn the noise bridge off before transmitting=20
>>> with 100 watts, and especially before tuning and then using my AL811H=20
>>> amplifier?  The amp puts out about 600 watts, and I know the Noise=20
>>> Bridge only handles 300 watts.  I realize that the noise bridge has a=20
>>> protective circuit, but I have learned over the years not to totally =
> trust
>> those protective circuits.
>>>
>>> Tom Behler: KB8TYJ
>>>
>>>
>>> -----Original Message-----
>>> From: For blind ham radio operators=20
>>> [mailto:[log in to unmask]]
>>> On Behalf Of Bob, K8LR
>>> Sent: Wednesday, January 01, 2014 11:20 AM
>>> To: [log in to unmask]
>>> Subject: Re: Using MFJ Noise Bridge To Determine Antenna Resonant=20
>>> Frequency
>>>
>>> Tom,
>>>
>>> The noise bridge works very well in getting your SWR down to 1-1.  The =
>
>>> really nice thing about the MFJ212 and the VEC512 is that you can=20
>>> transmit with the noise bridge in line with a power of up to 300 =
> watts.
>>>
>>> I would not use your 480 internal tuner if your running an external =
> tuner.
>>> That combination could cause some really high voltages at the antenna=20
>>> connector that could pop some components.
>>>
>>> Howard has got it right on how to find a resonant frequency with the=20
>>> noise bridge.
>>>
>>> Bob, K8LR, [log in to unmask]
>>>
>>> ----- Original Message -----
>>> From: "Tom Behler" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Wednesday, January 01, 2014 9:49 AM
>>> Subject: Using MFJ Noise Bridge To Determine Antenna Resonant =
> Frequency
>>>
>>>
>>> Hi, again, everyone.
>>>
>>>
>>>
>>> Sometime late last Summer, someone on the list suggested that an MFJ=20
>>> 212 Noise Bridge might be useful for determining the resonant =
> frequency=20
>>> of an antenna, even one that might be resonant outside the ham bands.
>>>
>>>
>>>
>>> Is this possible, and, if so, how exactly might that be done?
>>>
>>>
>>>
>>> Tom Behler: KB8TYJ
>
>
>