[1000mp] Dead Band sound?

[Ron Walters]

Brain wrote:

"Signals are bright and clear - 
it's just on the empty space that it seems louder than it should"

Sounds like you have the IF gain to high

Ron W4LDE

Brian Smithson wrote:

>Hi Pete!
>
>Great question - yes it does, much more so on 80 and 40 than the higher
>bands.
>
>Brian n8wrl 
>
>-----Original Message-----
>From: Pete Smith [mailto:n4zr at contesting.com] 
>Sent: Friday, February 25, 2005 7:53 AM
>To: n8wrl at arrl.net; All about Yaesu 1000mp
>Subject: Re: [1000mp] Dead Band sound?
>
>
>What happens if you disconnect the antenna while listening to this dead 
>band sound - does the sound level drop?
>
>73, Pete N4ZR
>
>At 07:44 AM 2/25/2005, you wrote:
>
>  
>
>>Good morning!
>>
>>I've got a really dumb question: What should a dead band sound like?
>>
>>I've got a fairly new MkV - xmas purchase. Two weeks ago I installed a 
>>full set of INRAD's including the roofing filter. I haven't had the 
>>radio long enough to remember how things sounded before installing the 
>>filters.
>>
>>On a 'quiet' band I hear what sounds like a louder version of the sound 
>>you get from a seashell - not a hiss but a steady 'whoosh'. It's 
>>steady, not pulsing, and it is quieter on the high bands (10, 12, 15) 
>>than 40 or 80. The narrower the filter, the lower the pitch.
>>
>>Just to be sure, I opened the case and took the roofing filter out of 
>>the loop with the same result. A little quieter because the gain is 
>>down (I adjusted RF gain from 14 to 12 after installing the roofing 
>>filter). I confirmed that the board was getting the 5V that it needs. 
>>So I think that's ok.
>>
>>The lower I set the RF gain the quieter it is, but then I'm it would be 
>>going deaf at that point.
>>
>>The one thing I haven't done yet is pull out my FT990 and listen - I 
>>feel like I'm losing my mind and asking a really dumb question, but 
>>does this sound like a normal sound? Signals are bright and clear - 
>>it's just on the empty space that it seems louder than it should.
>>
>>What do you think?
>>
>>-Brian n8wrl
>>
>>
>>______________________________________________________________
>>1000mp mailing list
>>Home: http://mailman.qth.net/mailman/listinfo/1000mp
>>Help: http://mailman.qth.net/mmfaq.html
>>Post: mailto:1000mp at mailman.qth.net
>>    
>>
>
>
>
>______________________________________________________________
>1000mp mailing list
>Home: http://mailman.qth.net/mailman/listinfo/1000mp
>Help: http://mailman.qth.net/mmfaq.html
>Post: mailto:1000mp at mailman.qth.net
>
>  
>