[1000mp] MARK-V + PSK31 ?

[1000mp@mailman.qth.net]

Marc,

The best way to operate PSK31 on the Mark-V is to use the Packet connector on 
the back of the rig!  I have fed my SCS PTC-II unit directly to it, and it 
worked fine.  GND, TX Audio, Rx Audio, and PTT is all you need.  I would 
reccomend having the 250Hz filter installed in the Mark-V also, and also use 
the special USER mode.

With your hardware or sound card program, setup the tones as follows:

Mark Frequency = 1100Hz
Space Frequency = 900Hz
Center Frequency will then be 1000Hz

The above values will setup the proper audio tones so that you could use the 
DATA DSP Filter for PSK31, if you desire.

Enter USER mode on Mark-V as follows:

Hold the PKT button for more than 1 second, then hold FAST+ENT
Rotate VRF/MEM CH knob to get to Menu 8-6 on display
Rotate SUB-VFO B knob to get EASY-SET on display
Rotate MAIN VFO-A knob to get PS31-U for USB, and PS31-L for LSB
Rotate SUB-VFO-B knob to get dsp-ofSt
Rotate MAIN VFO-A knob to bring frequency offset to 0.000 (Hz)
Hit ENT to exit

With the optional filters installed, make sure you have enabled them 
correctly using the various menus.  For PSK31, it is best to set menu 5-4 to 
8.2-455 (250Hz Filter Bandwidth).  This sets up the Mark-V to use the 250Hz 
filters for both the 8.2 and 455 IF.

The RF Output is also important for PSK31.  Do not overdrive the transmitter. 
 I setup my RF PWR knob fully clockwise (max. output) and during IDLE tone 
(on PSK31), limit my audio gain for about 70 watts or so on the Power Output 
Display.  Of course you should see NO ALC reading, because the RF Output is 
way below 200 watts.

For Pactor-I/II, you can use the 500H setting (500Hz Bandwidth).  Also for 
Pactor I/II, set your software/hardware as follows:

Mark Frequency = 1270Hz
Space Frequency = 1070 Hz
Center Frequency will then be 1170Hz


**** YOU MUST press either the NOR, NAR1, or NAR2 buttons AFTER you change 
menu 5-4, in order for the changes to take effect. *****


I hope this helps you out, 

John
N2KBE


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