Cross Band Repeater/ Dual Band/ Dual Receive/ 360 Degree Channel Knob
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RT23 Cross-band Repeater HAM Radio
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General Specifications |
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Frequency range |
VHF:136-174Mhz |
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UHF:400-480Mhz |
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Frequency Sensitivity |
+-2.5ppm |
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Rated Voltage |
7.4V DC +-20% |
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Memory Channel |
128 Channels |
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Antenna Allocation |
Pupinization Antenna |
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Antenna Impedance |
50 |
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Dimension |
100*60*36mm / 3.94*2.36*1.42in(Excluding the antenna) |
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Frequency Step |
2.50K/5.00K/6.25K/10.00K/12.50K/20.00K/25.00K/50.00K |
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Transmitter |
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Modulation Mode |
16K0F3E/11K0F3E |
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Maximum Frequency Deviation |
<=5kHz / <=2.5kHz |
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Spurious Power |
<=7.5uW |
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Preemphasis Character |
6dB/Every times the frequency will increase |
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Current |
<=1.6A |
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Wide/Narrow |
0.75kHz +- 0.1kHz, 0.4kHz +- 0.1kHz |
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Modulation Sensitivity |
8-12mV |
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<=5% |
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Receiver |
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Sensitivity |
<=-0.2uV <=-0.25uV |
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Audio Output Power |
>=500mW/10% |
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Audio Distortion |
<=5% |
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Obstruct |
>=85dB |
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Intermodulation |
>=65dB >=60dB |
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Adjacent Channel Selection |
>=70dB >=60dB |
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Spurious Rejection |
>=65dB |
1.Cross-Band Repeater Function.
Turn on the cross-band repeater function(menu 6). You can choose a one-way or two-way repeater(menu 34). One way(single) means the repeater's receive and transmit frequencies are specific. The radio will show 162R2375,426T2375. It indicates the repeater only can receive 162.2375, transmit 426.2375. Two-way (double) means the repeater's receive and transmit frequencies are random. The radio will show 162*2375,426*2375. It indicates the repeater not only can receive 162.2375, transmit 426.2375, but also can receive 426.2375, transmit 162.2375.
The Cross-Band Repeater function also can increase the distance of communication. If you choose a two-way repeater, it can make the UHF radio communicate with VHF radio. When you turn on the repeater function, you also can set if the radio PTT Transmitting(menu 33) and Speaker(menu 32) are available.
For example:
(1)RT23 radio A: RX 426.2375MHz, Offset: - 264.000MHz
RT23 radio B: RX 426.2375MHz, Offset: - 264.000MHz
RT23 radio C: Repeater RX 162.2375MHz, Offset: + 264.000MHz
Radio A could communicate with Radio B,It also can increase the distance of communication.
(2)RT23 radio A: RX&TX 162.2375MHz
RT23 radio B: RX&TX 426.2375MHz,
RT23 radio C: Two-way Repeater 162.2375MHz, Offset: + 264.000MHz
Radio A could communicate with Radio B
2.Dual Receive
RT23 is not the same as other radios. Other radios can "watch" two channels. Monitor two different frequencies(even on different bands (VHF/UHF)) and the radio will monitor both frequencies giving priority to the first station to receive an incoming call. RT23 not only can "watch" both frequencies, but also can receive two incoming calls at the same time. What is more, you can set the volume mode by menu 35. MAIN indicates the main frequency sound is louder when receiving, SUB is indicated the sub frequency sound is louder when receiving. OFF indicates both main and sub frequency have the same sound.
For example:
RT23 radio A: TX/RX 162.2375MHz,
RT23 radio B: TX/RX 426.2375MHz,
RT23 radio C: Dual Standby 426.2375MHz, 162.2375MHz,
Radio C can receive the voice of Radio A&B at the same time.
3.Dual PTT
You can set a Sub-PTT by side key. If so you need not choose the transmit channel. Push PTT transmit the main-channel, push another side key will transmit the sub-channel. Very convenient.
4.360 Degree Channel Knob
The channel knob can rotate 360 degree. You can operate the menu up and down by this knob. It is very convenient.
1.Dual Band Dual Display Dual Standby Handheld Radio
2.128 Memory Channel
3.360 Degree Channel Knob
4.Cross-Band Repeater Function(VHF to UHF or UHF to VHF)
5.Frequency offset and direction programmable in repeater mode
6.Dual PTT(Side key can setup Sub-Ch transmit)
7.Dual Receiving(RX on the same/different bands of A&B areas simultaneously)
8.VFO/MR/CH Mode
9.1600mAh
10.Battery Save
11.Strong and Stable Output Power (High:5W/4W,Low:1W)
12.CTCSS/DCS
13.Scan(3 kinds of scan:Time,Carrier,Search)
14.VOX
15.TOT
16.SQL
17.PTT ID
18.FM
19.Multi Definition for Sidekeys
20.DTMF Encoding&Decoding
21.All/Group/selective call
22.Reverse Frequency
23.Remote Alarm
24.Wide/Narrow Bandwidth Slection(25KHz/12.5KHz)
25.Voice Guide:Chinese/English
26.Chinese/English Screen Display
27.Single-Tone Pulse Frequency:2100Hz/1750Hz/1450Hz/1000Hz(Signalling for activating repeater)
