[minima] Re: tx output spectrum

  • From: Mark G0MGX <mark.g0mgx@xxxxxxxxx>
  • To: minima@xxxxxxxxxxxxx
  • Date: Thu, 30 Jan 2014 07:50:30 +0000

OK boss, will report back findings later today.

M


On 30/01/2014 07:49, farhanbox@xxxxxxxxx wrote:
That's correct, mark. I should have said : check on 18 mhz. That's the edge 
case.
- f
Sent from BlackBerry® on Airtel

-----Original Message-----
From: Mark G0MGX <mark.g0mgx@xxxxxxxxx>
Sender: minima-bounce@xxxxxxxxxxxxx
Date: Thu, 30 Jan 2014 07:43:47
To: <minima@xxxxxxxxxxxxx>
Reply-To: minima@xxxxxxxxxxxxx
Subject: [minima] Re: tx output spectrum

Yes, I can do this later on today.

I thought we used the lower frequency LPF up to 15MHz and then set
BAND_HI to change to the 30MHz filter above that frequency?

Mark


On 30/01/2014 04:31, Ashhar Farhan wrote:
mark,

at 14 mhz, the local oscillator is at 34 mhz. given our lpf's cut-off
at 30 mhz, i am not too sure that it is being sufficiently suppressed.
can you sweep the tx output to let's say 50 mhz width and confirm this?

- f



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