[Elecraft] Reminder: Most Elecraft rigs can scan "dead" bands for signals

Drew AF2Z pubx1 at af2z.net
Thu Apr 26 08:33:47 EDT 2018


I wrote a macro that will scan the range between the VFO-A freq and the 
VFO-B freq. Just dial in the freqs and hit the macro key. A short push 
will scan muted; a long push will scan unmuted. A manually paused scan 
can be resumed by hitting the SCAN key. Named "SCANNOW" in the 
Programmer's Reference PDF.

Regarding scan, I wish...

- scan rate could be variably adjusted during scan; the current COARSE 
is often too fast and the FINE is too slow;

- could set a fixed dwell time; the current dwell time is random.

73,
Drew
AF2z




On 04/25/18 23:46, Wayne Burdick wrote:
> Those of you who are new users of an Elecraft K2, K3/K3S, KX2, or KX3 may not know about the scanning and channel-hoping feature that’s common to all of these rigs. Scanning a seemingly “dead” band segment can reveal signals as they come up, allowing you to do other things (work out, paint, dust, reread “Ecotopia” by Ernest Callenbach, brew an IPA, whatever).
> 
> You might think of scanning as an eyes-free panadapter. Well, I do.
> 
> The basic scanning mode keeps the receiver muted until signals appear. It’s a real ear-saver. In addition, the K2, K3/K3S, and KX3 have a “live scan” feature that simply scans continuously with the receiver audio unmuted. This is especially useful on bands where very weak signals might appear from nowhere out of low-level atmospheric noise, say 15 meters.
> 
> All of these radios also support hopping among a set of labeled memories. This is typically used on 60 meters or other channelized bands, e.g. those with repeater allocations.
> 
> For details, see “Scanning” in your owner’s manual's table of contents.
> 
> Tips:
> 
> - If you’re scanning for CW signals, perhaps this coming Friday in honor of Morse’s birthday (hint), set the bandwidth very narrow (50-200 Hz).
> 
> - If there’s a lot of band noise, turn off the preamp. This will give the scanning algorithm more audio dynamic range to work with.
> 
> - Scanning steps match those set up for the VFO knob; using fine steps will miss fewer signals but take longer to scan the segment of interest.
> 
> - Configure all of the above *before* saving setups to memory as scan start/stop end points (VFO A and B). Later, you can recall your favorite scan ranges preconfigured for various band conditions.
> 
> 73,
> Wayne
> N6KR
> 
> 
> 
> 
> 
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