How too scan a range of frequencies while tuning the K3 Sub-receiver
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Here is another 'How To" from my bag of K3 tricks. I frequenctly put my K3 in 
the scan mode on 6 Meters, looking for activity from propagation beacons. While 
the MAIN receiver is scanning, I can simultaneously monitor the 6 Meter DX 
(50.110) or North American (50.125) calling frequencies or can tune around with 
the sub receiver with VFO-B. For those of you who have not yet tried to use the 
K3 scanning feature or have tried but have had no success, here is how it is 
done:
 
1) Set VFO-A to lowest frequency to be scanned and set the bandwidth and mode 
to be used during the scan. 

2) Set VFO-B to the highest frequency to be scanned. If you have a sub 
receiver, press the BSET and set the bandwidth, mode, NB, etc. that you want to 
use on the sub receiver. Tap the BSET key when finished.

3) Next, press the V>M button once and use VFO-A to find a free memory to use 
to store the lowest and highest frequencies. I use Memory #99 for most scans.

4) Press the V>M button again to move the frequencies and modes into the chosen 
memory (#99).
   
5) Press the M>V button once. It should already be set to #99. If not, then 
dial the memory (#99) using VFO-A. 

6) Press the M>V button a second time to move the desired freqs from Memory #99 
to the A & B VFOs. If you skip steps 5 & 6, when you try to initiate a scan you 
will get the error message "M>V REQ".

There are two kinds of scans, Muted (SCAN) and Unmuted (AF ON). 
1) To start a muted scan, HOLD the SCAN button for about a second until "SCAN" 
appears on the LCD screen. When a signal is sensed, the scanning will stop and 
you will hear the audio of the detected signal. After a few seconds, if it 
stopped on a stable carrier or the signal disappears, the scan will resume. If 
the scan stops on a CW signal, it usually stays on that frequency until the CW 
stops, then resumes scanning. 

2) To start an unmuted scan, HOLD the SCAN button about 3 seconds until the LCD 
screen reads "AF ON".  
During an unmuted scan, it will not stop as it tunes past signals. To stop 
either a muted or unmuted scan, move VFO-A or tap any button.

Do you have a sub receiver in your K3?
It is possible to tune around the band with your sub receiver while a scanning 
with the MAIN receiver. To do so, before you press the SCAN button, press the 
SUB button. If you want the change sub receiver's mode, bandwidth, NB on, etc., 
HOLD the BSET button, make the changes, then tap the BSET button. To start the 
scan, HOLD the SCAN button. As soon as the scan starts on the MAIN receiver, 
you can start tuning around the sub receiver with VFO-B. If you accidentally 
move VFO-A, the scan will stop. 

The speed of the scan can be changed by tapping the FINE button.

It seems like a lot has to be done to set up a scan. But once you load a memory 
with the frequencies and modes, starting a scan is quite simple. Once my 
primary scan storage memory #99 is set, here are the keystrokes used to quickly 
start a scan:
Tap M>V 
Tap M>V
Tap SUB to turn on sub receiver if desired
Hold SCAN 

I hope that you find this info to be useful.

73,
Rich - K1HTV 
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