1750hz Toneburst Repeater Access Enhancement for RC-210
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Burst 1750hz tone on Ailunce HD1 - YouTube
Hys 25w Dual Band Vhf/uhf 136-174/400-480mhz Dual Ptt Mobile Fm Transceiver Radio - Walkie Talkie - AliExpress
LEIXEN VV-898S Mini Mobile Transceiver Dual band 144/430MHz Car radio With cable | eBay
Leixen VV-898S Tri Power 5W/10W/25W Dual Band Radio VV898S 25W Car Walkie Talkie (#394417138706)
1 Chelmsford Amateur Radio Society M3 Foundation Licence Course Murray Niman G6JYBSlide Set 8 Repeaters/CTCSS Chelmsford Amateur Radio Society & Essex. - ppt download