American QRP Club NUE-PSK Operator's Manual - Page 12

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11)

Tips & Techniques, and "Things to Watch Out For"

Here is a useful section that will undoubtedly grow in length over time. Please be sure

to often check the NUE-PSK website for the latest online information.

a) Signal Level – Setting the right drive level to your SSB rig is essential to success

when operating the PSK31 mode. Please be sure to read the corresponding

section on the NUE-PSK website containing lots of tips on this topic.

b) Inserting Plugs to the Modem – You will want to be sure that you fuly insert the

Radio and Keyboard plugs into the connectors on the modem. Failure to do so

could well result in unusual, intermittent or "noisy signal" symptoms during usage.

When inserting, be sure to press firmly in the direction of insertion – do not

"wiggle the plug while inserting. Same for unplugging – just pull it back firmly.

(Care in this area will save the life of the connectors on the modem.)

c) Tap-Hold to Select Config – As described elsewhere in this manual, you can

get into the Configuration menu in order to make various settings in your modem.

Config is entered by a press-and-hold of the Select pushbutton ... just press the

pushbutton for about one second (say "one one thousand") and release it to see

the options that you can further select by rotating the Tune control. You can

select any other operation or menu selection merely with a quick tap of Select.

d) Tx Audio Level Setting – This menu selection in Config will show you the

relative position of the mini-pot used for the control on the top of the modem.

The control currently ranges from 0%-to-26%, or -60%, -125% or even -160%,

etc.

Don't worry about the specific number at this time; we will make the

readings more consistent from unit-to-unit in a future software release.

e) Spectrum Artifacts – When viewing a moderately-strong signal at the midscale

point on the modem's LCD spectrum (which corresponds to 1500 Hz), "noise" will

also be seen on the far right and far left ends of the spectrum display. This is

NUE-PSK Digital Modem Operator's Manual, ver 1.20