Tag Archives: winlink express

VHF Packet Winlink Working

Back in July,  I did some work to get packet winlink working over the local HF packet nodes. At the time, the local digipeter was not operating so I was not able to make a solid enough connection to exchange mail. The digipeter node is now operational here in Brownsville. I gave it a try after reviewing how I had done it before using the IC-7100 and a software soundcard modem. Quick review:

  1. CAT7200 software is installed and then run to create a com port that the IC-7100 will recognize for CAT control.
  2. UZ7HO Sound Modem software performs the TNC function via soundcard mode.
  3. RMS Express is run in packet winlink mode to exchange mail.

The radio is set manually to the digipeter frequency which in my case is 145.01 Mhz. An ultra important step is to set the mode to FM-D. Once all this was set I was successful in sending and receiving email at 1200 baud. Not bad for a soundcard mode.

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VHF Winlink

I started looking into how to use VHF Winlink with the Icom 7100 and it’s built in sound card. I am close to getting this working. The Mail server nodes are all in the Harlingen Tx area about 30-40 miles from my QTH. The closest working digipeter is in La Feria, TX. Sadly, there does not appear to be a working digipeter in Brownsville. In order to get everything working you will need the following:

  1. CAT7200 software – This creates a virtual serial port that maps to the IC-7100 USB CV-I interface. Pretty handy software and should work for other older programs as well. Good overview of the setup can be found on WB4SON’s blog.
  2. UZ7HO SoundModem – This is a software TNC that connects to the virtual port created above and to the RMS Express software via TCP connection. W2YG has some good material on setup for Signalink hardware.
  3. RMS Express – I have used this before for HF email using WINMOR. For VHF at 1200 baud you will need to use packet winlink.

For setup info recommend seeing the video by K4REF showing an overview of the usage. I cannot report 100% success at this time. I am able to connect to the mail server and start handshaking with it. Unfortunately, no mail has been exchanged. I suspect that packets are being lost in the exchange resulting in retries and eventually it gives up. I’ll be playing with this some more and see if I can get a message through. Hard part is done with the rig and software setups.

Email over HF Revisited

I setup the ICOM 7100 to run with Winlink Express (formerly RMS Express) software to send email over HF. The software allows direct use of the ICOM 7100 through it’s on-board digital mode interface. Overall, this was fairly simple to setup and surprisingly I was able to send some test emails in the morning hours on 40m to a server in Houston. Be sure to select USB digital mode in the software. I set my power out to 50% and connected fairly easily. I am going to play with the settings a bit and see if I can improve connection reliability. At some point I’d like to try this using the FT-817ND as well.

Anybody who would like to exchange some test email with me can send their messages to NO5V@winlink.org

Update 4/20/2017: Per request I am attaching screenshots of my RMS Express configuration. Note that you will likely need to adjust your port settings. First up is the winmor settings:

winmor settings

Here are the Radio Settings

radio settings