System Considerations; Hardware Specifications - microHAM DigiKeyer Manual

DigiKeyer can be used with a wide variety of software. The capabilities of those packages will have large
influence on the level of computing power needed to utilize DI.
When used with Windows based contest logging applications like N1MM Logger Plus, Win-Test, and
WriteLog or Windows based general logging applications like DXBase, DXLab Suite, DX4Win, Logger 32
and others, the microHAM control and interface application "microHAM Router" must run with the
application. Since both the logging program and microHAM Router are real-time applications, system
performance will be dependent on both CPU speed and the amount of available RAM.
While microHAM Router may run on slower computers, the minimum tested system is a 1.8 GHz Core2Duo
processor, Windows 7, 1 GB RAM, CD-ROM, and USB 1.1 port. Whether Router can run as designed on
slower machines with less memory and leave enough resources for application programs has not been
determined. microHAM Router is not supported on any 16 bit version of Windows (95, 98, ME, SE).
In order to provide sufficient performance for simultaneous operation of microHAM Router, a logging application,
Internet connectivity and other accessory programs, the recommended system is a 2 GHz or faster multi-core
CPU with Windows 8.1 or later, 4 GB RAM, CD-ROM, root USB 2.0 port, and a transceiver with supported
control protocol and logger, control, or digital mode software.
USB: USB 2.0 Full speed , USB 1.1 compatible
Power consumption: USB – less than 100mA; Transceiver – less than 200mA at 13.8V (max. 16V)
Radio Port: RxD, TxD – max. 57,600 Baud
Levels: Jumpers selectable TTL, inverted TTL, open collector bus, RS232
CW: open collector, max 30V/400mA
FSK: open collector, max 30V/400mA
PTT: open collector, max 30V/400mA
Audio Out: 600 Ohm, 3V p-p max.
3dB bandwidth: 0.2 - 6KHz typical
Second harmonic: -84 dB typical
Third harmonic: -72 dB typical
D/A Sampling rates: 32000, 44100, 48000 Hz.
Audio In: 50K Ohm, max 4Vpp
3dB bandwidth: 0.2 - 6KHz typical
Absolute noise floor: -82 dBm @600 Ohms typical
Dynamic Range: 82 dB typical
A/D sampling rates: 8000, 11025, 16000, 22050, 32000, 44100, 48000 Hz.
Dimensions: W 175mm (6 7/8") x H 44mm (1 3/4") x D 101mm (4")
Weight: 1100g (2.4 lbs.)
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11 - System Considerations

12- Hardware Specifications

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