FlexRadio Systems SDR-1000, Hardware Manual

FlexRadio Systems  

9/7/2006  

5

1.

RX I/Q AUDIO: Connect the cable from the sound card LINE IN port into the 
TO LINE IN jack on the back of the SDR1000

using the 1/8  TRS connector.   

2.

TX I/Q AUDIO: Connect the cable from the sound card LINE OUT port into the 
TO LINE OUT jack on the back of the SDR1000

using the 1/8  TRS 

connector.   

3.

RADIO CONTROL: Connect the beige colored parallel cable between the 
computer and the SDR-1000 -OR- Connect the custom USB cable between the 
computer and SDR-1000 .  Load the USB driver found on the FlexRadio 
Knowledge Base in the Downloads->PowerSDR  Drivers and Utilities  

3.

ANTENNA:  Connect an HF antenna to the BNC jack closest to the DC power 
jacks. The other connector is used for 6 meters or QRP operation if you have the 
one watt radio.  

4.

CW KEY: Plug your key into the jack labeled CW key. 

5.

SPEAKER: Do not connect a speaker to the speaker jack on the back of the SDR 
when using either the Delta 44 or Presonus sound cards but instead connect your 
computer powered speakers to the end of the Hosa cable with the female 1/8 
plug.  

6.

MICROPHONE:  BEST: connect the microphone directly to the sound card. On 
the Delta 44 it s the INS 3 jack. On the Firebox, it s the MIC 1 position on the 
front of the box. Either of these direct inputs can be wired for either balanced or 
unbalanced operation.   

If an XLR connector is used with the Firebox, the input will provide a low 
impedance balanced input.    

If a TRS ¼  jack is used with either the D44 or the Firebox, it will result in a high 
impedance balanced input.  Using a ¼  TS jack will result in a high impedance 
unbalanced input   

8-PIN MIC CONNECTOR:. Refer to the Operators manual for the pin 
configuration. (The pin-out is the same as that used on Yaesu radios.)  When the 8-
pin connector is used, the black 1/8  phone plug to ¼  phone plug cable included 
with your Hosa cable set must be connected from the  MIC out jack on the rear of the 
SDR1000  to the either the INS3 on the D44 breakout box or the MIC 1 jack on the 
Firebox.  

7.

POWER CORD.  Connect the dual banana plug to the red and black cable (both 
included).  Insert the plug into the SDR-1000 and attach to a 25A 13.8V power 
supply.