Sorry, my diagram did not indicate that I do also have a band pass filter on the output of the isolator before the RF goes back to the radio. In my current setup, I have 2 3-port TX/RX isolators going

Hi Jim, Remember that you should also install a low pass filter or band pass cavity after the isolator to keep it off the antenna for IM reasons. John Lloyd, K7JL Jim Kusznir wrote:

Ack, this message got mis-filed by my mail client, sorry for the delay! Here's my attempt at a block diagram...I'm pretty poor at diagramming... This is what my current Mitrek on the hill is

Jim, I reviewed our setup and it requires an external switch to protect the receive port and yes the Tx/Rx signal is available to drive it. Please send me a block diagram of the application. I may

Sent from my iPhone

Jim, I'm just wrapping up some time critical engineering work. First of next week, I'll publish the block diagram of our antenna switch with both options and then I can address your question

Hi all: I have a quick question on the implementation of the separate TX and RX ports on the UDRX: I realize its half-duplex, so will there still be T/R switching internally to protect against tx rf

Press Release 30 December 2013 Friday Harbor, WA NW Digital Radio Universal Digital Radio Name Change to UDRX-440 NW Digital Radio has renamed it's forthcoming digital radio platform. Since its

Hi Michael, thanks for your input. Here's a point by point response. # It seems like the target keeps changing. Quoting from the Press Release at Hamvention 2012: "The radio will support data rates

It's a commitment to buy, but you may still cancel, as we are not taking deposits. Bryan

Is the "Pre-Order Confirmation" a commitment to buy, or just a confirmation of intent?

Hi Michael, Some good points. I will post a full reply after the Holidays Bryan

It seems like the target keeps changing. “If you don’t know where you’re going, any road will take you there.” Even if a higher speed is possible, it may not be deployable in many

Thank you, John. I understand and agree with the idea that 56kbps speed could be supported, but due to the lack of a significant installed base, you are dedicating engineering resources to

Hi Mark, The in-built modem capability allows different speeds and modulation under software definition. 9600-bps packet, without the need for an external TNC, will be supported right out of the box.

I understand there have been some changes to the specs since we preordered so I'd like to clarify the details on what I'm buying. I understood that originally, I would have been able to use the UDR56K

See new information on http://nwdigitalradio.com Sent from my iPhone

Many fans now have an output so the system can monitor if they die / clog / jam. How about an input for such a feature on the fan. Hey, wait, I thought there wasn't going to be a fan (the massive

- Ability to lock at least the RF board to a 10MHz external reference (that may be the "synthesizer lock input" mentioned below). 73-KY9K/Brian

Tom, COR... DOH! and done, Santa