What, like this? (see attached df file)
I designed just such a thing for use with the BITX20 HF TRX. Rotary
encoder allows one to "tune" with a knob with the LCD reading out the
relative "dial" frequency (VFO-IF in this case)
Mark.
On Thu, Jan 22, 2015 at 11:47 AM, Eric Cottrell wrote:
> Hel
Hello,
The frequency counter with IF offset method was used in the first generation HF
receivers with a digital display, like a Yaesu FRG-7700, or Kenwood R-1000.
More modern radios have the radio processor drive the frequency display
directly. One reason is different offsets are required based
Interesting reading and not overly technical, so most will understand it..
-- Original Message --
From: Ed Cummings
To: swlfest
Subject: [Swlfest] Designing Wheel-Tuned, Digital-Display Radios with
Next-Generation Radio ICs
Date: Wed, 21 Jan 2015 21:10:53 -0500
Today I receive
I was going to suggest a similar solution.
I think the article suffers from what NASA calls an "imagination
failure:. One does not need to count anything. Using a micro processor
(uP) and a Direct Digital Synthesizer (DDS) and a mixer it is very
easy to create SDR type radio's these days. Perhaps
Funny, you mention this topic. If all does well, I will be bringing a
small single chip fm radio with Aduino board that can be controlled via
a web browser. I am looking at a radio design for ETOW. Several years
ago, I wrote up a specification for a ETOW radio for Tom. At this time,
there
