1. 9600 baud (and higher) packet radio on the cheap
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

2. 9600 baud (and faster) packet radio on the cheap
Why 9600 baud?
Its faster than 1200bd
Its cheaper than 1200bd.
Needs less kit.
Greater bandwidth efficiency
Greater data through put
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

3. 9600 baud (and faster) packet radio on the cheap
Where’s the catch?
Home brew equipment
Need PC based computer
No TNC interface
Modifications to your rig
Exacting modulation rules
Not ‘Plug And Play’
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

4. 9600 baud (and faster) packet radio on the cheap
What’s available?
Sound cards
BayCom
Yet Another Modem (YAM)
OE5DXL-96
PIC-PAR
XYW-9600
GMSK 28k8
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

5. 9600 baud (and faster) packet radio on the cheap
Sound cards
Any 16/32 bit Full Duplex card
Typical price £10
Supported by Linux, APE-Term, FlexNet etc
Re-usable hardware
Have to build keying circuit
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

6. 9600 baud (and faster) packet radio on the cheap
Homebrew kit
Most need no special tools
Some need EPROM code
Start at around £10
Some only available as boards/parts list
Most cannot be used for satellite work
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

7. 9600 baud (and faster) packet radio on the cheap
YAM - Yet Another Modem
Very small
Can do any speed up to 24k
Full Duplex
Uses FPGA - needs code
Cost around £20
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

8. 9600 baud (and faster) packet radio on the cheap
G4XYW Modem
Satellite compatible
Full duplex ability
Regen repeater ability
G3RUH compatible
CWID capable
Software upgradable
Cost £20
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

9. 9600 baud (and faster) packet radio on the cheap
Junk box components
9k6 only
Build on Vero
Half duplex
Cost around £5
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

10. 9600 baud (and faster) packet radio on the cheap
VFast28.8 GMSK
Add-on for TNC
Can do up to 38k4
Kit of parts
Full duplex
Cost around £80
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

11. 9600 baud (and faster) packet radio on the cheap
AX576 - GMSK
Up to 57K6
Full duplex
TAPR/PacCom software
TNC interface
Cost around ????
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

12. 9600 baud (and faster) packet radio on the cheap
PicPAR - DF9IC
Plugs into printer port
Up to 38k4
Half duplex
Kit of parts
Cost £40
BPQ support
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

13. 9600 baud (and faster) packet radio on the cheap
Ethernet
Microwave solution
Raw Ethernet at 10Mbts
Full duplex
Cost £30
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

14. 9600 baud (and faster) packet radio on the cheap
Software & Drivers
‘Nuff said!
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

15. 9600 baud (and faster) packet radio on the cheap
Software & Drivers
Various software packages
Add on drivers
Only 1 ‘native’ package
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap

16. 9600 baud (and faster) packet radio on the cheap
That’s all Folks!
Saturday, 22 September 2018Saturday, 22 September 2018
9600 baud (and faster) packet radio on the cheap