CAT, PTT and CW Circuit
Original circuit from the MixW help file,
modified for use with the Yaesu FT-920
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This is a simple Interface from the Computers COM-Port to the Yaesu FT-920 CAT and CW / PTT Ports. |
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The "freestyle" setup, fitting into an DB9 enclosure. The connecter is to the PC side. The first CW QSO via the PC keyboard is allready in the log :-)
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And here are the connectors on the FT-920 side.
Note that the CAT-Cable is straight through, that means pin 2 goīs to
pin 2 on the rs232-side, pin 3 to pin 3, so donīt use a modem-cable
for this connection !
These pictures are from the Yaesu FT-920 manual |
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RS232 controlled Antenna-Switch
Another simple project, using the wellknown PTT-circuit to drive two small relais which switch the larger coax-relais.
Shown are the two coax-relais, each can handle up to 150 watts HF.
The LEDīs here are only for testing the circuit.
So if you start MixW, a macro will load the AntSwitch.exe and changeing the frequency in MixW will switch to the responding antenna.
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Wireless-Lan connection Notebook / Station PC |
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Pictures courtesy of : http://www.level1-netsolutions.de/produkte/katalog/katalog.cfm?rubrik=Wireless&lan=deut |
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Level1 WPC-0200, WNC-0200 22MBit/s WLAN adapters and
WAP-0002 Access-Point
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WLAN is setup and running. But I encounterd one big problem when
trying an installation using the PCMCIA and the PCI-Card forming an
Ad-Hoc LAN.
As the server is in the basement and I
operate with the notebook from the 1st floor, the datarate was reduced
to 1 MBit/s ! Now I have an excellent connection througout our property and yes, I did the first RTTY QSO from the garden, but only a short one, as we had minus 3° C. Testing was also done in the sleeping room, but the lady operator didnīt like the idea running a contest from there :-)) |
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RS232 controlled Antenna-Rotation