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Barrett 4050
How I set up the Barrett 4050 SDR to the SCS DR-7400 Modem
Swipe the screen from the left side and choose "Audio" in the menu
Your Audio Levels: may vary.
Line Out Level 0 dBm
Line in Level -6 dBm
Your Audio Levels: may vary.
PSK-1250
FSK-1000
Testing parameters:
Winlink Express Levels: PSK-1250, FSK-1000
150 watt power level, No Audio transformers or Ferrites cores used.
Antenna was a Fan dipole at 26 ft high and less than 30 ft away from the transceiver VSWR 1.7:1
It produced a clean signal and performed as advertised.
(Amateur) Expected radio power output approx. 120 watts
(Commercial) In Canada ISED licence stipulations maybe considerably lower power depending on location.
(Commercial) Power output is calculate in ERP
If you experience degraded audio signals RFI/EMI try adding Mix 31 Toroids (1-300 Mhz) to the audio cables.
If you want to decouple the audio then transformers might be an option.
Making up your Pactor cable using a 8 pin & 13 pin with 5' fly leads from your SCS Dealer
8020 - Audio cable, SCS 8pin DIN to raw cable end, 5'
8070 - TRX cable, SCS 13pin DIN to raw cable end, 5'
North America SCS dealers
Call or Webstore
Farralon USA (415-331-1924 press option 2)
Call only
White Squall Consulting Inc. (250-924-6642)
DB-25 Male to Auxiliary port DB 25 female
Note: 4 pins are connected to common point ground and to the metal cover of the DB25
Pin 1 is isolated for RS-232 0 Volt reference
DB25 pin to 8 & 13 pin cable information
8 PIN - SCS Cable pin information
(rear view is solder side)
13 Pin - SCS Cable pin information
(rear view is solder side)
NOTE: SCS shows in the manual Pin 13 (orange) is the ground reference for RS232.
DB25 Connections:
I would suggest using heat shrink on the soldered connections and unused wires.
I would suggest using heat shrink on the soldered connections and unused wires.
(for strength and short protection)