Typical setup between Icom IC-705 and a linear amplifier
To JUMA PA1000 main page
Icom IC-705 does not have a physical CI-V connector. The JUMA IC-705 gateway provides band data by using Bluetooth connection to IC-705. The output is BCD band data with open collector output and Yaesu band voltage. The DB9 male connector provides the band data. JUMA gateway can be powered with a standard USB power (micro USB) or with a 5V-15V DC (rear panel). Current draw is 120mA with 5V and 55mA with 12V.
The wireless Bluetooth connection is reliable when Icom IC-705 and JUMA gateway are located in the same hamshack. The small size (66mm x 66mm x 28mm) JUMA gateway can also be used with other linear amplifiers and also for other applications like antenna selection etc see the DB9 connector pin order here.
- Power up JUMA Gateway and IC-705 transceiver
- Go to IC-705 Bluetooth menu. Set Bluetooth ON and Auto Connect ON.
- Go to PAIRING/CONNECT and activate Device Search
- Select JUMA-IC705 Gw (Each gateway has an individual HEX-number ID)
Band data cable
- Connect a DB9 cable (female-male with all pins connected) from JUMA gateway to JUMA PA1000 BAND DATA connector.
- Select BCD band data in JUMA PA1000
- Activate AUTO BAND in JUMA PA1000 (Green AUTO led should be ON) and check the band tracking
- IC-705 provides a 5V compatible open collector PTT output in the tip terminal of the 3.5mm SEND jack.
- Connect a 3.5mm plug cable from IC-705 SEND jack to JUMA PA1000 PTT jack.
- A standard audio cable can be used, both mono and stereo cables are ok.
- Check the PTT functionality.
Note1. Start JUMA Gateway before IC-705 to get Blutooth auto connection.
Note2. Set TX delay of 20ms in IC-705 to avoid hot switching in an amplifier.
The blue enclosure is transparent and you can follow the operation with the LEDs inside. See LED info here.
Update 2021-01-08 OH7SV