I don't want to rush NW Digital. But, I would like to get API's to the radio as they become finalized. This will allow me to start building some software before I get the radio. Respectfully, Marsh

Questions that came in via email. Thanks to John for responding Is it possible to use TCP-IP over ax25 with large MTU ? The UDR56K implements the Linux AX.25 stack using a socket interface. Each A

I seem to remember that we were using 1024-byte packets over 9600 baud in the Seattle area on TCP/IP back in the early 90's, and UI frames. As soon as I get a box in my hand I'll be trying to do the

I see the specs for the UDR56K specify "RF Connector: Type N" but is it male or is it female? Thanks, Mark KV4I

As we move forward to deployment, it occurs to me that the landscape for operating frequencies is anything but stable. Here in Western Washington we have 19 - 25kHz simplex channels designated as pac

Both antennas right hand is ok Only if you use moon-bounce the direction of the waves change from right to left Look at 2 screws (and one nut on one of them represents the signal) If both are norma

Developers, I'm trying my hardest to spread the word about the UDR56K-4 here in CT, but many hams have adopted the "proof is in the pudding" theory. Would it be possible to record and post an actual

*What can you do if you have the only UDR56k-4 in the neighborhood?* 1. 9600-baud AX.25 applications (RMS Gateway, iGate, Tracker, ...) compatible with Kenwood, Yaesu, etc. 2. D-STAR Digital Voice s

I'm trying to embrace the concept of A Hailing Channel for Packet Radio, but I've run into an engineering roadblock. I am assuming the "hailing channel" will be something like 440.800 MHz APRS, and th

Repeater builders use a highpass lowpass combination (procom 70/6 or similar) to transmit and receive on the same antenna ... now my rough guess is that you could add such a filter to your antenna inp

These filters are also available as a single bandpass (with several cavities in a row) ... so ... would that prevent other transmitter signals from coming down back in the pa??? (isolator would help .

Sorry for the delayed response. I was away from Internet all weekend. The problem is not desense. The UDR56K is half-duplex so I don't need to worry about desensing the receiver during transmit. And

I have some questions about Winlink on the UDR56K. 1) Is the UDR56K capable of performing as a Winlink 2000 UHF client without the need to add a soundcard or TNC? 2) Does the Linux implementation of

MIchael, I don't have time right now to test, but JNOS2 compiles from source on the UDR56k-4 as does jnosinstaller. The installer configures the program just fine. Barring any unforeseen issues, yo

Hi all. I was just reading the datasheet for the UDR56k-4 and noticed the receiver sensitivity figures: Receiver Sensitivity, BER 10-3 . 4k8 -113 dBm . 9k6 -110 dBm . 56k -100 dBm That BER

2013 ARRL/TAPR DCC (Digital Communication Conference) http://www.tapr.org/dcc   Friday, 9/20 - Sunday, 9/22   Cedarbrook Lodge, Seattle, WA http://www.tapr.org/dcc.html/#hotel     Preliminary DCC Tech

http://nwdigitalradio.com/breaking-the-100kbit-barrier

I'm a bit of a fan of mesh networking devices and we are now introducing the Village Telco "Mesh Potato" wireless telephony/data device to our county EMA. That said, I ran across this on the FreedomB

Any update on the UDR56K radio?     Jim

Any new updates on the release date? The website doesn't have any new updates.