On 2018-10-30 11:21 AM, Richard Ferch wrote: >
You said you wanted to be able to use a spectrum scope. For that you will need some kind of software defined radio (SDR) external to the K3. I believe Win4K3Suite can use any SDR for which there is an ExtIO dll file available, such as one of the SDRplay RSP devices. Whichever SDR you use, it must be capable of operating at HF.
As an alternative, you will need an IF to I/Q conversion device (SoftRock, LP-Pan, etc.) and a sound card capable of 96KHz sample rate (preferably 24 bit). The SDR (e.g., the basic SDRPlay RSP) is probably less expensive than the I/Q demodulator/high end sound card option these days but if one already has a suitable sound card, the demodulator might work. 73, ... Joe, W4TV On 2018-10-30 11:21 AM, Richard Ferch wrote:
The two connectors you mentioned are actually a DE-9 RS232 port, for radio control communications with the computer, and a DE-15 ACC port, which is generally used for communicating with other station equipment such as a power amplifier, band switches, bandpass filters, automatic antenna tuners, FSK (RTTY) keying interfaces, and so on. The RS232 port is certainly needed by Win4K3Suite, but to the best of my knowledge, the ACC port is not needed to operate with Win4K3Suite. In order to use the RS232 port, you will need either a serial cable to a serial port in the computer, or a USB to serial adapter (such as the KUSB - but not the KXUSB). You said you wanted to be able to use a spectrum scope. For that you will need some kind of software defined radio (SDR) external to the K3. I believe Win4K3Suite can use any SDR for which there is an ExtIO dll file available, such as one of the SDRplay RSP devices. Whichever SDR you use, it must be capable of operating at HF. You did not mention whether the K3 you are looking at has the KXV3 option installed. This has five BNC connectors on it, for IF Out, XVTR In and Out, and RX Ant In and Out. This option is highly useful, although not 100% necessary, for use with an SDR for a spectrum display. If your K3 does not have the KXV3 option installed, you will need some way to connect the SDR to an antenna, and some means to isolate that SDR from the antenna whenever you are transmitting, such as an external transmit/receive switch controlled by the K3. There is more information on this in the Win4K3Suite documentation. 73, Rich VE3KI N7TB wrote: I am looking to purchase a preowned K3. I currently own a KX3 that I have interfaced to Win4K3Suite. The K3 that I am considering buying has the two 9 pin Din plugs in the back, one ACC and one DATA. I am not financially able to purchase a P3 currently and want to use the spectrum scope on the Win4K3Suite to do that for me. What do I need to have to be able to interface the K3 to Win4K3Suite in order to get the spectrum scope to work.
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