Discussion in 'Survival Communications' started by stg58, Feb 21, 2013.
There a few new dual and qaud band radios that look interesting
The TYT TH 980 and Wouxun KG-UV920.
1. Frequency Range Suitable for any Region of any Country:
(TX / RX): 136-174MHz & 400-480MHz
(RX) FM : 65MHz - 108MHz (100K Frequency Spacing)
2. Band can be Set Freely: V/U U/V V/V U/U
3. Dual Reception: Twin Band Simultaneous Reception
4. Dual Display: Large LCD Dual Frequency Display, Two Completely Independent Operating Systems
5. Over 999 Memory Channels: Area Scanning Management
6. Remote-head Mounting Capacity: Multiple Installation Types, Convenient Usage
7. Full Duplex Cross-Band: Offset Frequency & Frequency Shift Direction Programmable; UHF/VHF or VHF/UHF Cross-band Repeater Function
8. Both Stations can Form Combined Same: Band or Different Band Repeat
9. High Output Power (VHF: 50W / UHF: 40W)
10. CTCSS/DCS Encode/Decode
11. Multiple Speaker Channel Settings
12. DTMF Hand Microphone: with Speaker, TX/RX Indicator and Volume Controller
13. Incoming Message Display
14. Caller ID Display
15. DTMF Encoding and Decoding
16. Group Calls, All Calls and Selective Calls
17. 8 Groups Scrambler
18. Priority Channel Scanning
19. APO Power Management
20. English Voice Guide
21. Minimum Operating Voltage Settings
22. Stun and Kill Function
23. Single Tone Pulse Frequency: 2100Hz/1750Hz/1450Hz/1000Hz (Used when Activating Repeater Signal)
24. Selected Three Color Backlight
25. Reduced Noise Settings
26. Remote Control Setting
27. Frequency/Channel Scanning with CTCSS/DCS Detection
28.Multiple Cooling Paths Fan
I love Item #22 Is this thing also a StarTrek Phaser?????
Item 17 sounds interesting for OPSEC. But also kind of curious especially given the FCC requirement that amateur band transmissions be free of secret codes etc. I presume one just may not use that feature when in the ham bands (assuming it means what it sounds like it means). Any idea how it works (both functionally and quality wise)?? Does anyone know if the Wouxun/TYT hand held units have a similar and compatible feature?
The scrambling function uses voice inversion some call it Donald Duck. Open ended like the old analog sync suppression video scrambling that was defeated very easily as is voice inversion. And as you noted illegal on the ham bands.
To the best of my knowledge no, none of the Wouxun handhelds have the scrambling feature. I have a KG-UVD1P (which is the first of the handheld line and the base that all of Wouxun HTs are built on with very little and in some cases zero internal difference) and it doesn't/isn't capable of that.
Some Wouxun do have scrambling.
WOUXUN KG-669 Plus VHF136-174Mhz + Scr
Amateur Handheld Transceivers
Transceiver with FM RADIO
Scrambler set BUILT IN
99 DTMF encoding and decoding, CCIR standards
Full frequency range
Output power VHF 5W
VOX transmission(VOX level adjustable)
105 groups D.C.S/50 groups CTCSS
All call, group call and select call.
ANI ID code(Caller ID)
128 memory channels and 1 group emergency channel
Voice prompt (Chinese /English)
Width/Narrow brand select (12.5KHz/25KHz)
Three color back light can be selectable .
1200mAh Li-ion battery and intelligent charge
Frequency/Channel/Frequency+Channel display mode
Multi scan mode(TO/CO/SE)
Calling ring and ring overtime auto answer
Multi silent mode(QT/QTADT/QTXDT)
Talk around function
Busy channel lockout
FM radio function
The Question IS, do these two units have Compatable Scrambling Capabilities???
I have a Puxing and Wouxun with the scramble function and they did not seem to be comparable with each other but I did not do extensive testing.
There are Muliple Inversion Schemes around, and few are comparable....
Separate names with a comma.