Friday, August 31, 2018

User Guide for RPi hotspot with FAN, Simplex hotspot,Model MMDVM_AlloySPOT,RPiZW SPOT Basic Edition


[1] PCB interface definition








[2] Customize case
Reference the alloy case for duplex hotspot, the difference is the FAN inside, LED hole position not same as the case  for duplex hotspot.





[3]  About RX/TX Offset
This board use 14.7456MHz TCXO, default RX/TXOffset  = 0

[4]  OS
1) Pi-Star OS, 
RPi 3B, Zero W http://www.pistar.uk/download/
RPi 3B+ http://www.pistar.uk/beta/

2) Win 7+ ,reference here

[5] Modem Type


[6] Firmware upgrade
sudo pistar-mmdvmhshatflash hs_hat  
or visit http://mmdvm.bi7jta.org/search/label/Firmware_upgrade  

[7] User group
https://www.facebook.com/groups/nano.mmdvm/

[8] To buy
https://www.facebook.com/cqcqcq73

[9] Follow me
https://www.qrz.com/db/BI7JTA

Thursday, August 9, 2018

Pager Setting User Guide 0810





Download
Pager ID programming software
http://mmdvm.io/files/POCSAG/
for windows






Setting
Write your RIC and S/N ,frequency


Enable Night-light

Register your DAPNET account https://hampager.de/
Request your DAPNET Authorkey
Add your Pager to DAPNET
Test send message to yourself.

Run send message to yourself, change the Callsign.
sudo pistar-dapnetapi BI7JTA "Test message 144.5125MHz, RIC 123456"

Add your Pager RIC to DAPNET, one callsign can add multiple RIC



View log
tail -100f /var/log/pi-star/DAPNETGateway-2018-09-01.log  


Pager Feature && instruction
PLL or crystal, 137-199 MHz and 400-499 MHz, POCSAG. 

Please notice that the frequency you use.

*One device just with 4MHz bandwidth.
*The frequency can be customized in the frequency range, 4MHz bandwidth you can program when come out factory.

For example, your order 1x 439.9875MHz, you just can use 437.9875-441.9875 MHz.
You can not use 458.6625MHz when you customize 439.9875MHz.

*Default frequency is 439.9875MHz.

Warning




Q&A
1) You can use the default RIC id if can not write your ID, the first and the second have Beep Beep  voice,

2) Some language  Character coding not support in DAPNET server,  will cause unintelligible text, change to English is ok.

3) Some time DAPNET server connect timeout, try later or change network(WiFi).

Preview
MMDVM HAT can find in shop www.bi7jta.org/cart )





See also
http://vk3xem.net/2018/09/21/gp2009n-alphanumeric-pager/






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