Tag Archives: SGC 2020

Programing the NUE-PSK Digital Modem

Just wanted to jot a quick note about how easy the NUE-PSK Digital Modem is to program – once I read the directions!

Mine has been back for each update and has the USB add-on with the RTCC (Real Time Clock Chip) feature.

It has been upgraded to Version 5, which added a morse key jack and full CW features.

Experimenting with Winston K9CFVR (we can drop the /AG as he is now listed in the FCC database) we hand typed everything. Did it the hard way and really didn’t get around to consulting the manual until after we were done.

It is a tribute to the ease of the NUE-PSK Modem that we were able to run PSK-31 at all given our caviler attitude to reading the directions.

I now have the NUE-PSK loaded up with a Config.txt file that has all my macros in it – paralleling what I usually program into MixW or fldigi when operating.

Technique was a quick couple steps:

  1. Download the Default Config.txt file from either the NUE-PSK itself, or from the website.
  2. Edit the file with a plain text editor.
  3. Put it back on the USB Thumb Drive.
  4. Use the NUE-PSK’s Load Config feature to Upload the edited Config.txt file into the Modem.
  5. Let the Modem reboot & test.

Took all of a few moments to do and the machine is ready to go.

Here are my macros as currently implemented:

MACROS FOR PSK AND RTTY:

Macro F1:  CALL CQ : CQ CQ CQ de <MYCALL> <MYCALL> <MYCALL> pse k

Macro F2: ANSWER ANOTHER’S CQ CALL: <THEIRCALL> <THEIRCALL> de <MYCALL> <MYCALL> pse kn

Macro F3: ANSWER WITH REPORT: <THEIRCALL> de <MYCALL> UR 599 599 into EN64dc EN64dc Manitowoc, Wisconsin – Name is Steve Steve HOW COPY? <THEIRCALL> de <MYCALL> kn

Macro F4: ANSWER WITH OPERATING CONDITIONS: <THEIRCALL> de <MYCALL> Full Print – I am operating a NUE-PSK Digital Modem (no computer) with a SGC-2020 Transceiver at 8 watts with a portable antenna. A very small portable setup from my “Go-Kit” that I am testing today.  BTU <THEIRCALL> de <MYCALL> kn

Macro F5: ANSWER WITH A BIT ABOUT ME: <THEIRCALL> de <MYCALL> Thank you for the information.  All copied.   I am good at QRZ.com and you can find more about me at https://k9zw.wordpress.com BTU <THEIRCALL> de <MYCALL> kn

Macro F6: REQUEST AN EMAIL CONFIRMATION: <THEIRCALL> de <MYCALL> Would you please email me a confirmation of our QSO.  I do eQSL and direct QSLs.  Sometimes LoTW when I feel brave!  My email is k9zw@mac.com  BTU <THEIRCALL> de <MYCALL> kn

Macro F7: SAY 73 AND SK: <THEIRCALL> de <MYCALL> Thank you for the QSO – Godspeed and 73 – Hope we do meet again!  <THEIRCALL> de <MYCALL> SK..Sk..so

MACROS FOR CW MODE:

CW Macro F1: CALL CQ: CQ CQ CQ DE <MYCALL> <MYCALL> <MYCALL> K

CW Macro F2: ANSWER AND REPORT WITH INFO: <THEIRCALL> DE <MYCALL> TU FOR CALL UR RST 5NN 5NN QTH Manitowoc, WI, OP Steve HW CPY? <THEIRCALL> DE <MYCALL> kn

CW Macro F3: CONTEST QUICK TURN-AROUND:  TU QRZ? TEST DE <MYCALL> TEST K

CW Macro F4: SEND MY CALL SIGN: <MYCALL>

CW Macro F5: ANSWER ANOTHER CQ:  <THEIRCALL> <THEIRCALL> <THEIRCALL> DE <MYCALL> <MYCALL> <MYCALL> kn

CW Macro F6:  BASIC INFO: <THEIRCALL> DE <MYCALL> RIG HERE IS SGC-2020. USING A NUE PSK MODEM. HOW DOES IT SOUND? <THEIRCALL> DE <MYCALL> kn

CW Macro F7: TUNING AND TESTING: TESTING TESTING DE <MYCALL>

I’ve left out the transmit on/off and control characters on my cheat-sheet notes, but they are there in the Uploaded Config.txt file.

A little manual reading a pre-use programing sure makes the NUE-PSK Digital Modem one slick little device and a perfect companion to the SGC-2020 Transceiver!

73

Steve
K9ZW

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For Want of Nail, Nothing Like an Upgrade to Peak Interest, and Playing with Go-Kit Gear

In the run up to Dayton my Shack Computer had been acting up. Latency Spikes and gremlins that were giving PowerSDR no end of grief. Thought a decent dual-core Dell, I was even considering replacing the machine.

Troubleshooting found only erratic symptoms. The underlying cause(s) just weren’t easily found.

On return from Dayton middle son Winston KC9FVR/AG asked if we could run up the station so he could try some PSK31, having been reading the Digital HF book bought at the ARRL booth. We couldn’t get things to run very smoothly and after a very rapid shutdown in response to a sudden lightening storm powerful enough to set fire to buildings only 10 blocks away, the system would no longer recognize the Flex-5000A hardware.

Utilities and Testing showed that the OEM Dell Firewire card gave up the ghost.

Quick research at the Flex-Radio Knowledge Center & Forum Archives identified the best cards for performance and roughly $25 later a card was on its way rushing from Amazon.

Took the downtime to do ALL updates – from BIOS to any driver/software/system update that could be done. Also left the machine running a very in-depth anti-virus scan which ran overnight (all clean enough to pass).

The new card was truly PnP (Plug-n-Play) and despite having a different chipset than advertised (putting it into an OK-class rather than preferred-class for PowerSDR use) the system quickly reinstalled the “Found New Hardware” of the Flex-5000A.

Operator error led me to fight with VAC (Virtual Audio Cables) and settings – trouble I could have avoided by a simple reboot.

Once running it was lickety-split to help Winston KC9FVR/AG put a handful of PSK31 QSOs under his belt.

The drive that comes from a fresh license upgrade and an experimenter’s mindset had Winston KC9FVR/AG quickly asking – can I run fldigi from my Linux Thinkpad using some of your other gear?

So to the garage to raid the go-kit stash.

Up went the 20m Hamstick Dipole on 12 feet of surplus cameo-poles and a trial of a Small Wonder Labs PSK-20 I had ended up with somewhere along the way.

We had little joy with this setup, and it is uncertain if the PSK-20 is needing repairs or if we were struggling with Linux sound issues.

So out came the SGC-2020 Transceiver and the NUE-PSK Modem. This combination hadn’t really been used. The NUE-PSK modem had come back a few weeks ago from a full update at Midnight Solutions bringing it up to Version 5 with all the add-on features, and the transceiver had been run but once.

Plugged in the SGC-2020 and cabled up the NUE-PSK and “PING” we were on the air just that quick.

Winston KC9FVR/AG complete a QSO and then declared the micro-keyboard “worse than texting” and dug out an old full sized IBM clicky-clicky keyboard which worked wonderful.

Of course we weren’t about to read the manuals any further than the absolute basics to get things running, so we were hand-typing everything. Macros are for sissies (or for those who read the manuals).

Winston KC9FVR/AG downloaded a PSK31 app for his Android Phone and it was neat to see it decode from the speaker’s sound output.

I ran a handful of QSOs (it is sure a lot easier to type “K9ZW” than what it took him to type “KC9FVR/AG”) before we put the station away (took ten minutes to pick up everything and store it again.)

My go-kit HF gear did digital just fine! Power needs are such that I think I could get more than 12-18 hours of full duty out of each of the gell-cells I have set aside from their storage charge levels, and days if they were topped off first.

Remember that “spark of interest” that comes with a fresh license upgrade? Well it was back down to the shack to run a couple 20m & 160m JT65 demo contacts before promising each other that we would run some Hellschreiber on the weekend.

A couple things learned – in terms of the station the dead firewire card really put the main station out of commission. “For want of a Nail” they say the battle was lost, and for want of a working firewire port the station was off the air. Critical Key Component Dependency is not unique to an SDR setup, as most stations lack backups for mission critical items. Almost nobody has a spare for each item in their station.

Then the joy of seeing an inquisitive mind wanting to explore amateur radio shouldn’t be missing from an operator’s life. It was wonderful to help Winston KC9FVR/AG explore digital-HF and heartwarming that he would only let this father retire for the evening by making a promise for “more radios, more!” on the weekend!

And lastly that it is great fun to pull out the go-kit gear and give it a whirl. Couldn’t think of a finer father-son activity to put one’s work day aside.

73

Steve
K9ZW

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K9ZW Portable Kit In the Making

K9ZW Portable Kit In the Making

I’ve been assembling the parts for a field kit to do Digital HF and today I laid them out to take first measurements as I refine my design & layout.

The NUE-PSK Modem does several Digital Modes and will do CW. Kit includes a Keyboard, Thumb Drive for Logging, Cable to the SGC 2020 TX, and various Battery Packs.

An SCG 2020 Transceiver does duty. Heavy Mil-Spec type of radio transceiver.

TGE built voltage regulator handles the power control tasks.

Another SGC product, the 237 Antenna Tuner and SmartLock remote handle some of the tuning tasks.

A Communications Speaker and a SWR Meter from the spares box will fill in those roles.

Gamma Power Supply is very small and light, using Super-Capacitors as the technology.

End Fed 10/20/40m Antenna is one of four set aside for this project.

There are other antennas (thank you Paul AE5JU!!) and an optional ThinkPad to include in the design.

Presently I am thinking of modules, with the #1 having the core & deployable on its own, and #2 & #3 respectively adding capabilities and options.

73

Steve
K9ZW

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