[minima] Re: Bandswitch socket detail?

  • From: farhanbox@xxxxxxxxx
  • To: minima@xxxxxxxxxxxxx
  • Date: Sun, 19 Jan 2014 12:24:34 +0000

That's right! It is for switching the tx lpfs.
- f
Sent from BlackBerry® on Airtel

-----Original Message-----
From: "Steve VK2SJA" <vk2sja@xxxxxxxxxxx>
Sender: minima-bounce@xxxxxxxxxxxxx
Date: Sun, 19 Jan 2014 23:23:26 
To: <minima@xxxxxxxxxxxxx>
Reply-To: minima@xxxxxxxxxxxxx
Subject: [minima] Bandswitch socket detail?

Hi Farhan,

Just had a chance to look through the Audrino Sketch.

I have a question about band switching.

Circuit has bandswitch socket with three bits designated Bandswitch A, B
and C.  Currently quick inspection seems to show that code only sets/uses
Bandswitch A to select either the LPF for 15Mhz  or if operating above
15Mhz the other 30 LPF with 20Mhz notch is selected.

Is intention to use these three bits in binary to arrive at 8 possible
Amateur bands and use the binary output to control either or both
different input filters and/or filters in the output of a linear amp?

Or is intention other?

73, Steve
VK2SJA



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