Zastone KT-8900 Mini Dual Band Transceiver

QYT KT-8900

also known as:
Zastone KT8900, QYT KT-8900, QYT KT8900 136-174/400-480MHz Mini Mobile Radio Transceiver, Juentai JT-6188

Function:

• Dual Band VHF:136-174MHz UHF:400-480MHz
• Step Frequency 5KHz, 6.25 KHz, 10 KHz ,12.5 KHz, 15 KHz, 25 KHz
• CTCSS / DCS / 5Tone / 2Tone / DTMF
• High/Low Transmitted Power 25W/20W(VHF/UHF)
• 200 Channel Memory

• Phase lock step
• Operating Volts: 13.8V DC±15%
• Frequency Stability: ±2.5ppm
• Operating Temperature: -20~+60

• Dimension(W x H x D): 98(W) x 35(H) x 118(D)mm
• Weight: 408g

Manufacturer propaganda: JT-6188 is the 2015 new product , the world’s smallest dual band mobile radio , Its output power is 20w at VHF , and 15w at UHF ,and have 200 channels . This radio is very easy to install on cars ,and motorcycles.

Programming

For channel name assignments, you must program the memory for the frequency, then go back into the channel name mode, enter the name (note: mic buttons much faster than trying to spin the knob on this), and then give it the memory number to assign the name to.

Program instructions for repeater use:

set radio to VFO MODE by pressing [V/M] Press [Exit A/B] to put radio in Top or Bottom freq use top freq as RX freq and Bottom Freq as TX freq.

1 - push exit A/B XXX XXX (RX)
2 - push exit A/B XXX XXX (TX)
3 - push exit A/B back to top
4 - [Menu] 1 step freq [menu] [up] to 25.00k [menu]
5 - [up]#13 T-CTCS [menu] [up] 131.8 [menu]
6 - [up] #36 [menu] 001 (key 001 ) [menu]
7 - [up] #37 [menu] 199 (key 199 ) [menu]
8 - [up] #38 [menu] [up] + [menu] <------ this is your freq offset + - simplex area.
9 - [up] #39 [menu] key in 05000 [menu]
10 - [exit A/B] to exit the menu programing
11 - [exit A/B] lower TX freq (XXX XXX )
12 - menu #39 [Menu] offset key in 05000[menu]
13 - [down] #38 [menu] [up] + [menu] <----- this is your freq offset + - simplex area.
14 - [down] #36 [menu] key in 001 for your channel [menu]
15 - [down] #13 [menu] make sure proper tone is there 131.8
16 [V/M] up down key to channel 1 and key up repeater ! this should work if not let me know 

citation: http://www.brickolore.com/2015/05/qyt-kt8900-dual-band-mobile.html