[1000mp] Questions about Mark V

[D. J.]

Flat preamp gives you less gain on the upper bands, 10 & 15.  Tuned 
gives you more gain on the upper bands but tuned is about the same as 
preamp off on the lower bands.  I leave my MKV in tuned as I don't need 
the extra gain on 75 and I do need the extra gain on 10 and 15.  All 
flat will give you is more noise on 75.  My recommendation is to set 
your preamp to tuned and leave it there.

Dale



On Jan 22, 2005, at 9:29, Bob Main wrote:

> OK that makes sense, thanks Art.
>
> Bob
>
> ----- Original Message ----- From: "Art Searle W2NRA" 
> <w2nra at optonline.net>
> To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
> Sent: Saturday, January 22, 2005 10:01 AM
> Subject: Re: [1000mp] Questions about Mark V
>
>
>> The tune mode give you more choices  Your receiver is more selective  
>> If there is a strong signal a few kHzs away it is not being amplified 
>> to the same rate as the signal you are listening to.  And if there is 
>> an interfering signal you can de-tune in the opposite direction to 
>> lower that signal more.  Also on a strong signal and a noisy band you 
>> can detune that signal for more comfortable copy.
>>
>> 73,
>> Art
>> W2NRA
>>
>> Bob Main wrote:
>>> True, but what I still am wondering is if FLAT is a broadband preamp 
>>> that gives me more gain (so the manual says), then why ever use it 
>>> in TUNED mode? It seems to me that in TUNED mode because you loose 
>>> some of your gain that this would hinder hearing weaker stations.  
>>> Although I will admit the amount that you hear them between the two 
>>> choices may not be that noticable, there is still a loss of gain 
>>> between TUNED and FLAT. (By the way, I set mine to TUNED when I got 
>>> the radio years ago, since I have read the manual again and came to 
>>> the above understanding I am wondering, why did I do that and 
>>> looking for some justification in it before I switch it to FLAT.)
>>>
>>> 73s
>>> Bob
>>>
>>> ----- Original Message ----- From: "Garry Shapiro" <garry at ni6t.com>
>>> To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
>>> Sent: Saturday, January 22, 2005 1:09 AM
>>> Subject: RE: [1000mp] Questions about Mark V
>>>
>>>
>>>> And selecting IPO bypasses the TUNED/FLAT stuff entirely.
>>>>
>>>> Garry, NI6T
>>>>
>>>> -----Original Message-----
>>>> From: 1000mp-bounces at mailman.qth.net
>>>> [mailto:1000mp-bounces at mailman.qth.net]On Behalf Of Bob Main
>>>> Sent: Friday, January 21, 2005 7:22 PM
>>>> To: w2nra at optonline.net; All about Yaesu 1000mp
>>>> Subject: Re: [1000mp] Questions about Mark V
>>>>
>>>>
>>>> Actually Art, the there are two tuned amps.  One covers 160-40 and 
>>>> the other
>>>> is 12-10, so 17, 20 and 30 are not covered and even for 20 mtrs 
>>>> they say
>>>> that the difference between the flat and tuned would be minor 
>>>> anyway.
>>>>
>>>> Bob
>>>> KB4CL
>>>>
>>>> ----- Original Message -----
>>>> From: "Art Searle W2NRA" <w2nra at optonline.net>
>>>> To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
>>>> Sent: Friday, January 21, 2005 9:00 PM
>>>> Subject: Re: [1000mp] Questions about Mark V
>>>>
>>>>
>>>>> Hi Bob
>>>>>
>>>>> Bob Main wrote:
>>>>>
>>>>>> Page 44 - A "wide band" or a "tuned" preamp is available and set 
>>>>>> by menu
>>>>>> 8-4.  It appears you get a high gain if 8-4 is set to "flat" 
>>>>>> whether than
>>>>>> "tuned".  I don't understand what having it set to "tuned" does 
>>>>>> for you.
>>>>>
>>>>>
>>>>> I think of this as a choice between a broadband preamp and a 
>>>>> preselected
>>>>> preamp.  You only have the choice 20 meters and below.
>>>>>
>>>>>> Page 45 - IPO, according to the manual it says if you are below 
>>>>>> 10MHz
>>>>>> that they suggest it be engaged.  Last night I was on 40 mtrs and 
>>>>>> played
>>>>>> with the button and heard no change where I was listening.  What 
>>>>>> is your
>>>>>> understanding of when this is useful?
>>>>>
>>>>>
>>>>> The IPO button is a preamp on/off in reverse.  When the IPO is off 
>>>>> the
>>>>> preamp is on  When the IPO is on the preamp is off.
>>>>>
>>>>> 73,
>>>>> Art
>>>>> W2NRA
>>>>>
>>>>>
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