timhavens / cdar Goto Github PK
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Automatically exported from code.google.com/p/cdar
cuSDR:
"cuSDR" has a LOT of the Chirp Receiver code built, and it appears to be built
with great forethought. However, there appear to be several short-comings at
present.
* Receive Path audio stream back to the PC may not be fully implemented. However it's possible to listen via Hermes Audio Out port. (this must be completed)
* Transmit Path may not be implemented at all at this point.
* Chirp Mode has been disabled due to many changes in the last revision published.
So this is a substantial set-back for use of cuSDR as a code base.
/trunk
Original issue reported on code.google.com by timhavens
on 31 Mar 2013 at 2:49
/trunk
Original issue reported on code.google.com by timhavens
on 20 Jan 2013 at 4:28
NW0W to purchase and begin testing use of the Hermes SDR or the Apache-Labs
"ANAN-100D"
Anan-100D isn't due out until March. It also employs a 100w amp and bandpass
filters.
These are things we MAY NOT desire initially. The upside to the Anan-100D is
that it will include the Cyclone IV FPGA with ability to load and use software
cores. It's based on the ANGELIA board. And advanced version of Hermes.
SPEC:
* 100W RD100HHF1 Based 160M - 6M rugged Linear amplifier
* Combination of 7 LPF and 5 HPF Banks for front end Filtering (User
Configurable as well)
* 6M LNA
* Dual Phase Synchronous LTC2208 16 Bit ADCs, additional third ADC via
daughterboard
* Large 115K (EP4CE115) Cyclone IV FPGA
* Supports 7 High performance Independent Receivers on a single ADC
* Supports 2 Coherent Receivers using independent ADCs/antennas for beam
forming/diversity
* reception (expandable to 3 Coherent Receivers using the coming daughterboard)
* FPGA has enough space to add on multiple soft core processors for standalone
operation
* Onboard 128MB Flash
* Onboard 32Mbit Synchronous RAM
/trunk
Original issue reported on code.google.com by timhavens
on 20 Jan 2013 at 4:27
In talking with VK3OE it may be possible to simply add a 10v-12v Zener in
series with J1 of the Pin Driver to drop the voltage down to about +5v. As
well as adding a 1k Ohm resistor in parallel.
Then setup the lo-power TX TR in reverse of the lo-power RX TR so that
everything goes to ground to switch to TX from RX on a single line back to
Hermes.
Original issue reported on code.google.com by timhavens
on 31 Mar 2013 at 2:55
Decide on Antenna Design Pro's and Con's related to CDAR
Original issue reported on code.google.com by timhavens
on 20 Jan 2013 at 4:31
Decide on High Speed, High Performance T/R switching for monostatic deployments
Original issue reported on code.google.com by timhavens
on 20 Jan 2013 at 4:30
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