YAM 9k6 -
Yet Another 9k6 Modem, a very nice project to build and get you onto 9600
baud packet.
Radio Modifications
for
radios to operate at 9600bps and higher.
TEKK Data Radios (select
radio for specs):
KS-900 -
2 Watt radio which will RX/TX from 430-470 (aka T-NET Micro). Service
manual in HTML format,
PDF
format.
KS-960
- 2 Watt radio. Same as KS-900, with added features (aka T-NET Mini).
Service manual in HTML
format, PDF format.
KS-1000
- 5 Watt radio. RX/TX from 430-470MHz. Service manual in PDF
format (only).
We purchased our TEKK units from Virtual
Communications.
The TEKK radio's are modifiable to operate at
19.2Kbps, by replacing one of the 455khz IF bandpass filters. Instructions
to perform this converstion will appear here once the procedure has been
verified by ourselves.
Here is a Tekk
to Soundblaster cable. Once you build this cable you can utilize the
Soundblaster Packet modem software developed for linux. See below for more
information on the Soundblaster code.
Antenna Systems
The point-to-point links are using the Cushcraft
A43011S 11 element Yagi, and for omnidirectional installations, the Cushcraft
ARX450B. Both of these antennas cost less than $100, and were purchased
through Ham Radio Outlet.
Other antenna systems can be hand built.
CQ Magazine, and again in 73 Amateur Radio Magazine have published plans
for inexpensive homebuilt antenna systems.
2-meter
J-Pole Antenna System
