Mid-November update
After a few long months of designing, testing and fine tuning, we finally have some concrete things to share with you guys. It might not be exactly the kind of news you were expecting, but we’re confident you won’t be disappointed…

Despite our best efforts, the MMDVM revision 1.2 is still far from completion. The design we originally envisioned for 1.2 incorporates a really good filter, but it is quite “aggressive” and requires more work, a lot more than we anticipated, both in software and hardware.

You probably noticed the messages some of our rev 1.2 testers exchanged on the Yahoo group over the last few months … We tested and tweaked, and then tested some more but unfortunately it’s just not ready.

A big “Thank you!” goes to all those who helped us design and test this board. We owe you a beer! (or five?!)

We’ll continue to work on the MMDVM revision 1.2 boards, and we hope we’ll find a solution
In the meantime, as a small and well deserved reward for your patience, we’d like to present you a new board: the Rev 1.0.1 board.
We designed the new Rev 1.0.1 board with the following features:
· 12Mhz TCXO
· Multi-turn pots
· RSSI Inputs
· I2C output (to connect LCD)
· A serial output (to connect LCD)
· Additional radio sense and control lines to be used for DR1X conversation
· Protection diodes on all the radio signals
· Additional Status LEDS
The PCBs are ready and they’re heading to the CM. However, it is mid-November and the timing is not really great. As the holiday season approaches fast, the deadlines become really fluid… We’d love to tell you that we’ll ship them in 2-3 week but we simply don’t know. Our best guess is “December”…
Once we get into production we will off course be releasing the schematics (PDF)
If you are on the waiting list for the Rev 1.2 and don’t want to be switched to the Rev 1.0.1 board please let me know.

You don’t need to re-confirm if I have already acknowledged ypu are on the list

If you wish to be removed entirely , I understand just let me know

thanks for your patience

regards

Bruce

VE2GZI

Email: ve2gzi@gmail.com

The Zastone D900 is a variant of the TYT MD-380 (aka: Retevis RT3) and is an entry-level 70cm DMR+FM transceiver. This gives you access to the new DMR system as well as conventional analogue FM repeaters. The radio uses the same firmware/internals as the MD-380 but has a slightly different case style. One of the benefits of DMR is the use of TalkGroups and Time-Slots which allow 2 conversations to take place on a single frequency. This means that a repeater can be used for a local (RF) QSO at the same time as supporting a world-wide QSO.

For the DMR newbie, our handy DMR Guide is included giving you a quick ‘n’ easy reference to understanding the various TalkGroups and Time-Slots.

First few units at this discounted price!

We include a “local” CodePlug with DMR+FM repeaters and simplex frequencies so the radio is fully-loaded when it arrives! Leave your Callsign and/or DMR ID in the “order notes” box during checkout and we’ll program those into the radio, too.

400-470MHz, stores up to 1000 channels
Digital DMR and analogue FM modes – works on existing GB3xx repeaters, simplex and GB7xx DMR
5-watt and 1-watt output power
Aerial socket is SMA-Male (Baofeng style) – BNC/SO239 adapters available as options
Stores up to 1000 contacts, ie: put name/callsign to DMR ID
CTCSS and DTMF for usual FM repeater/EchoLink access
Li-ion 2000mAh battery
Docking-station charger with UK plug
Belt-clip and wrist-strap
FREE USB Programming cable
FREE laminated DMR guide
Optional Add-ons – matching accessories purchased with the radio are cheaper than buying separately.
Please note that due to the different case style, an MD-380 battery/car-charger is NOT compatible