JUMA IC-705
Bluetooth Gateway
Typical setup
between Icom IC-705 and a linear amplifier
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 supply (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. Pairing Icom IC-705 to JUMA Gateway - 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, see the sticker on the bottom cover) 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 PTT cable - 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 Bluetooth Gateway before IC-705 to get auto Blutooth connection. Note2. Check that IC-705 CI-V address is A4H Note3. 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 2021-12-15 OH7SV
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