Brian,
All the signals needed for changeover of the external amps and relays
are there on the X2 External Control Connector. You can set the several
outputs to do required band switching according to the control table in
the setup menu. The outputs are suitable for low level input devices
like most modern amplifiers. I would use an interface module such as
the N0XAS universal amp controller for the older rigs that had the relay
coils directly operated by the VOX/key /changeover connection of the
amp. Back EMF is the problem with relay coils.
If you have questions about a particular configuration give me a call at
800-687-9161.
We can figure out what is needed with a bit of study.
My offer is open to all SDR folks. I'm a "Hard Head", I do hardware.....
73, Larry K2LT
drakerepair.com
T and T Measurements
Brian Sherrod wrote:
On Wednesday 26 April 2006 7:54 am, Larry Loen wrote:
2. Receive antennas on HF (currently inhibiting my progress on 30
meters and preventing me from deploying beverages on 80). Manual
switching between transmit and receive antennas won't work in even the
slightest pileup.
3. Hooking up a variety of HF amplifiers that (as we learned in Belize)
will overload and burn out the amplifier relay circuit of the SDR.
Forgive my ignorance, as I don't even have my SDR-1000 yet, but am I to gather
that the rig does not have any "keying" voltage for a 12v Dow relay or
similar? I had planned to use a beverage on 160 and 75 for receive, and just
assumed I could use my Dow key relay for switching antenna's between xmit and
recv. Maybe I missread the manual, but I thought I saw a provision for this.
Thanks,
Brian
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