[1000mp] Mark V Field AGC Swamping and SSB Filter Setting Fixed via Hidden Menus!

[Harry Yingst]

Did you happen to buy this radio used?????

Did you do a Master Reset when you first got it?







--- htankin at comcast.net wrote:
> For all of those who've been reading (forced or out of curiosity) my
> tales of 
> woe regarding my Mark V Field I have good news...well maybe good for
> you and great for me.
> 
> My Field was experiencing incredible AGC swamping from strong sigs as
> far away as 5 to 7 or more Kcs.  I could not believe this was a
> design fault.  There had to be another cause...either pilot error on
> my part with respect to menu 
> settings or something else.
> 
> In addition to that problem I could not get decent SSB receive audio
> with menu 
> 5-0 SSB R set to OFF..which defaults the stock 2.4 filters to the NOR
> position 
> and the optional 2.0 filters to the NAR1.  Received audio was
> severely 
> constrained..as if it was being affected by a narrow CW filter. 
> Nothing I could 
> do with the menu settings would fix this with the exception of
> setting menu 5-0 to 8.2-455 which puts the 2.4 kHz 8.2 IF filter in
> through position, and the 2.4 kHz 455 in the 6 kHz position.  The
> power of deduction got me to realize this setting was providing such
> wide bandwidth that an offending signal 5 kcs away would pose a
> problem.
> 
> Okay..so Einstein here figured out what was causing the AGC
> swamping...but how do I fix the problem with the menu 5-0 SSB R
> filter settings?  Contacted Yaesu tech support..they were stumped! 
> Chip M tried to help, but no luck.  I was depressed!
> 
> Well tonight I "Googled" Mark V Field and came across a site that had
> menu 
> settings for the Field..Okay..no big deal, except the list included A
> SLEW OF HIDDEN MENU SETTINGS for menu items 9-0 through 9-9.  The
> site had listings of default settings.  Menu item 9-0 allows for
> adjustment of the offset for the stock 2.4 Collins Mechanical Filter.
>  Once I punched in the code to get into these menus for my Field, I
> discovered the receive SSB settings under 9-0 were way out of whack! 
> They were set at F 1.60 and I adjusted down to F 0.15 each for LSB
> and USB. The differnece was amazing..night and day.  The NOR/NAR1
> bandwidth settings now work fine with menu 5-0 set to OFF.
> 
> Subsequently, the AGC swamping is now virtually gone as well!
> 
> For those of you interested in getting into these HIDDEN MENUS do the
> following:
> 
> (1) Turn off the Mark V Field
> (2) Hold down the FAST and LOCK buttons and turn on the rig
> (3) Then push FAST and ENT as you would to enter the menu system.  
> 
> You can then go to menu items 9-0 thrugh 9-9
> 
> By the way, I believe 9-8 displays date the radio was made at the
> factory.
> 
> The URL for where I found this info is   
> 
> www.otterbein-inet.de/ft1000.htm
> 
> 
> Harry WE1X
> 
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> 1000mp mailing list
> 1000mp at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/1000mp


=====
Harry - AB2PN

-


	
		
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