[1000mp] Inrad 1.8 installed

Wed, 17 Jul 2002 18:15:13 +0300

But come to think about it, I really don't see any need for 2.0 KHz Yaesu filters any more as I found the audio quality quite the same for both but the Inrad's are just so much better in cutting off the splatters.

Besides, I found that all Yaesu filters attennuate signals c.a 2-3 Db at least. Signals are all that much stronger though Inrad filters.

So I will just replace the 2.0 filters...

Tonno

> -----Original Message-----
> From: Tõnno Vähk 
> Sent: Wednesday, July 17, 2002 6:05 PM
> To: [email protected]
> Subject: RE: Re: [1000mp] Inrad 1.8 installed
> 
> 
> Thanks to everybody for comments on this, I was off to WRTC 
> so could not answer.
> 
> It is clear to me now that I have to change the BFO to make 
> the 1.8 Inrads work in 250hz slots. Unfortunately in the menu 
> you can not change it for every single filter pair but only 
> for either "CW" or "SSB" filters. Thus by changing the CW 
> offset to make 1.8s work I would set the 500hz filters off...
> 
> So really the only solutions seem to be either using the USER 
> button as Ian suggested or use SHIFT button always to correct 
> the offset when using the 1.8 KHz filters.
> 
> Is that the right conclusion?
> 
> I did find that the 250 hz 455IF filter is very handy in the SUB VFO.
> 
> 73
> Tonno
> ES5TV
> 
> > -----Original Message-----
> > From: [email protected] [mailto:[email protected]]
> > Sent: Wednesday, July 10, 2002 3:09 AM
> > To: [email protected]; [email protected]
> > Subject: Fw: Re: [1000mp] Inrad 1.8 installed
> > 
> > 
> > Ian, IK4EWX wrote:
> > 
> > "the problem is that when you select the 2.0khz slots from 
> the filter
> > matrix switch on FT1000MP, on CW mode,  the rig use the 
> usual SSB bfo
> > shift.  So, the only solution is to select manually bfo shift 
> > (as I think
> > use to make some digital modes users - as seen from USER command
> > instructions on the FT1000MP manual)."
> > ==========
> > I have an INRAD 125 Hz CW xtal filter in the 2.0k slot for 
> > the 455 kHz IF
> > and it works perfectly there.  No need to adjust any of the menu 8-5
> > settings via the USER switch.
> > 
> > I also just tried my 2.4k stock SSB filters (both the 8.215 
> and 455 IF
> > filters) on CW and there's no problem with frequency shift 
> with those,
> > either.  The signal is still centered in the passband (I use 400 Hz
> > pitch) when I'm in the CW mode (either CW-USB or CW-LSB).
> > 
> > In the SSB mode, a CW signal is not centered in the passband 
> > (at my 400
> > Hz pitch) no matter what filters I select, of course.  This 
> > is as I would
> > expect it to be.
> > 
> > My FT-1000MP is a fairly late model, manufactured in February 1998. 
> > Perhaps there's a difference with the Mark V and the Field, 
> > but I doubt
> > it.
> > 
> > 73, de Earl, K6SE
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