[1000mp] Inrad 1.8 installed

Tõnno Vähk [email protected]
Wed, 17 Jul 2002 18:05:21 +0300


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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