That surprises me because even back in the 60s, it was possible to turn off
AGC on receivers of that day.
Steve
----- Original Message -----
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, January 06, 2014 17:52
Subject: Re: MFJ Noise Bridge Again
> Most of the older radios couldn't turn it off except the high end ones.
> ----- Original Message -----
> From: "Steve Dresser" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, January 06, 2014 5:12 PM
> Subject: Re: MFJ Noise Bridge Again
>
>
>> Hi Lou,
>>
>> Interesting that the AGC couldn't be turned off on your 440. I never
>> owned
>> a 440, so I didn't realize that. I guess Kenwood has thought better of
>> that
>> for their new radios; I can turn the AGC off on my 480, 590, and 2000.
>>
>> Steve
>>
>> ----- Original Message -----
>> From: "Lou Kolb" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, January 06, 2014 16:32
>> Subject: Re: MFJ Noise Bridge Again
>>
>>
>>> Steve,
>>>
>>> Sorry, I just saw this today. Mostly older rigs might not have an AGC
>>> off
>>> option. My TS440 for one. You can switch between slow and fast but you
>>> can't turn it off on that rig. The K3, of course, is completely
>>> different.
>>> Not only can you turn it off but configure several different aspects of
>>> AGC
>>> performance. i live in a rather noisy location but now have the
>>> receiver
>>> behaving much more quietly since finding an article about it online and
>>> following its reccomendations. I imagine the 590 is similar. 73. Lou
>>> Lou Kolb
>>> Voice-over Artist:
>>> Radio/TV Ads, Video narrations
>>> Messages On-hold:
>>> www.loukolb.com
>>> ----- Original Message -----
>>> From: "Steve Dresser" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Wednesday, January 01, 2014 2:05 PM
>>> Subject: Re: MFJ Noise Bridge Again
>>>
>>>
>>>> Lou,
>>>>
>>>> I've never heard of a rig that didn't have a way to turn the AGC on and
>>>> off.
>>>> What ones have that non-feature?
>>>>
>>>> Steve
>>>>
>>>> ----- Original Message -----
>>>> From: "Lou Kolb" <[log in to unmask]>
>>>> To: <[log in to unmask]>
>>>> Sent: Wednesday, January 01, 2014 12:28
>>>> Subject: Re: MFJ Noise Bridge Again
>>>>
>>>>
>>>>> Tom,
>>>>>
>>>>> Turning down the RF gain is a good idea and turning off the AGC, if
>>>>> possible, is an even better one. Of course, the AGC activity would
>>>>> make
>>>>> it
>>>>> difficult if not impossible to hear the null. I turn mine off when
>>>>> trying
>>>>> to orient the beam on a signal but I know not every rig has this
>>>>> function
>>>>> available. Good luck.
>>>>> Lou Kolb
>>>>> Voice-over Artist:
>>>>> Radio/TV Ads, Video narrations
>>>>> Messages On-hold:
>>>>> www.loukolb.com
>>>>> ----- Original Message -----
>>>>> From: "Tom Behler" <[log in to unmask]>
>>>>> To: <[log in to unmask]>
>>>>> Sent: Wednesday, January 01, 2014 11:22 AM
>>>>> Subject: Re: MFJ Noise Bridge Again
>>>>>
>>>>>
>>>>>> Howard:
>>>>>>
>>>>>> I think I'll have to back the RF gain down on the TS480 at least
>>>>>> somewhat
>>>>>> in
>>>>>> order to effectively work with the noise bridge, based on my limited
>>>>>> experience with the device and my TS590. Adjusting the RF gain on
>>>>>> the
>>>>>> 480
>>>>>> is, of course, a bit of a hassle, since you have to do it via the
>>>>>> front
>>>>>> panel keypad and function knob, rather than a simple single knob
>>>>>> adjustment,
>>>>>> but it is doable. I seem to recall it is number 6, but will have to
>>>>>> check
>>>>>> the manual.
>>>>>>
>>>>>> In any case, I'm not going to go out into the RV today and try it,
>>>>>> since
>>>>>> temps are in the single digits, wind chills are below 0, and since
>>>>>> I'd
>>>>>> have
>>>>>> to trudge through at least 12 inches of snow to get there. (grin)
>>>>>>
>>>>>> Tom Behler: KB8TYJ
>>>>>>
>>>>>>
>>>>>> -----Original Message-----
>>>>>> From: For blind ham radio operators
>>>>>> [mailto:[log in to unmask]]
>>>>>> On Behalf Of Howard Kaufman
>>>>>> Sent: Wednesday, January 01, 2014 11:11 AM
>>>>>> To: [log in to unmask]
>>>>>> Subject: Re: MFJ Noise Bridge Again
>>>>>>
>>>>>> Tom, you got it right!
>>>>>> The minimum pulse is very accurate. Any additional circuitry adds
>>>>>> loss.
>>>>>> I am not sure if you can just attenuate the signal while listening on
>>>>>> the
>>>>>> 480, or if you will have to crank the rf gain back as well.
>>>>>>
>>>>>>
>>>>>> ---
>>>>>> This email is free from viruses and malware because avast! Antivirus
>>>>>> protection is active.
>>>>>> http://www.avast.com
>>>>>
>>>
>
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