[TenTec] Orion Interface Options

[Martin Sole (HS0ZED)]

For FSK I use a 3 transistor interface from a serial port to the Orion. 
One transistor is used for CW keying and the other for FSK, the third is 
the PTT transistor needed for FSK. I think the specifics were in the 
N1MM contest logging program documentation.

Use pretty pretty much any simple switching type transistors and a few 
other small parts, resistors and diodes. Too easy to not work.

Martin, HS0ZED


On 14/03/2015 21:49, Bill Gaines wrote:
> I have an Orion 565 and in addition to mostly operating CW I do use the radio for RTTY using FSK. My question (in a minute) is not to generate a debate on the pros and cons of RTTY using FSK or AFSK. I learned RTTY some 45 years ago on the old machines and was brought up on FSK so that is what I wish to stay with. My debacle is this. For several years now I have had two rather expensive interfaces that I have used (two of the same make and model). The first one failed as a result of a nearby lightening strike and the second just failed because (you fill in the blank). I am tired of getting a second mortgage for a piece of equipment. What products in use seem to be most popular? I do want something that will allow mw to use CW and RTTY. I am not interested in the other various digital modes at this time although I would guess that they all do most of the same things. Maybe I will need a second mortgage after all.
>
> Thanks in advance,
>
> Bill AD8P
>
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