Hello John,
Sure, you can use RF4463F30 modules for the 33cm band (band not available for amateur-radio here in France). But then the difficulty would be to find a good (and cheap) radio amplifier with fast TX/RX commutation times. The big avantage of my solution over 430MHz band is that you can find cheap DMR amplifier, with fast TX/RX times (less than 500 microseconds).
If you find equivalent amplifiers for 33cm band, please let us know. I would be very interested, and I will update my project!
73, Guillaume F4HDK
Le 24/03/2019 à 19:36, K7VE - John a écrit :
I note that at the advertised bit rates, the OBW (occupied bandwidth) may exceed US Regulations for 70cm. However, the chip used, is also claimed to support 33cm.
I am interested in the new packet protocol proposed by the project. Even at a lower bps on 70cm (for the US), and full rate at 33cm, this has real potential for mid-tier data communications.
CFR 47 Part 97.307 (f) 6
On Sun, Mar 24, 2019 at 4:05 AM f4hdk f4hdk@free.fr wrote:
Hello,
I am Guillaume, callsign F4HDK, a french amateur-radio operator, and a hacker-maker. I would like to share with you my last project : NPR (New Packet Radio).
All documentation is provided here : https://hackaday.io/project/164092-npr-new-packet-radio
This solution can transport bi directional IP trafic over 70cm radio links, in a 'point to multipoint' topology, at datarate up to 500kbps. This can be used to increase the range of existing HSMM-Hamnet networks, at lower datarates. It's designed for "access", not backbone, and not designed for H24 use. Its is 100% open-source.
Do not hesitate to ask me questions about it. I hope it will interest some people here.
73, Guillaume F4HDK
John D. Hays K7VE http://k7ve.org/blog http://twitter.com/#!/john_hays http://www.facebook.com/john.d.hays