"KG-UV8T features Amateur Tri-Band operation (144/220/440 MHz), true dual simultaneous receive (V+V, U+U, V+U), now with Cross-band repeat function, 999 Channels, large LCD color display, CTCSS/DCS encode and decode, and 12.5/25.0 KHz wide/narrow bandwidth selection."
"Hey everyone! It's me, ladyada! I recently got my Amateur Radio License ('HAM ticket') and I wanted to start out with a radio that's both inexpensive, easy to use, and fun to hack! After seeing some videos from CCC about the MD-380, I thought this radio is the one for me to start with.
Not only does this radio do FM analog on the 400MHz band, but it can also do DMR - digital encoded radio! This gives you the ability to use an Internet-backed voice network with no static and huge worldwide repeater reach.
I'm just getting started on my HAM-venture but I thought I'd take some notes on the hacking and programming I've done! Some of it, like updating the Firmware and flashing User DB, is optional - but it's also the most fun!"
It doesn't mention it, but surely the pressing the doorbell will eventually ring your phone. Of course, it needs to integrate with your IoT lock and camera system.
144/220/440 Tri Band VHF/UHF Handheld Transceiver
This radio doesn’t have cross band function
Feature:
1. 144/220/440 Tri band, dual display, dual standby
2. 100% Brand New & Special Edition!
3. 128 channels to store
4. FM radio receiver and 25 channels
5. Channel spacing selectable (25/12.5 KHz)
6. Hand free VOX function
7. CTCSS/DCS encoding and decoding
8. Low battery alarm
9. Emergency Alarm
10. Shift repeater function
11. ANI function
12. DTMF function
13. Reverse frequency function
14. Tri-color background light selectable
15. English and Chinese prompt
16. MSK
17. 1750 Tone
18. PC software programmable
19. Channel scan function
20. Busy channel lock-out (BCL)
21. Monitor function
22. Time-out timer (TOT)
Frequency range
VHF:136~174MHz up to 7 Watts
VHF:220~260MHz up to 10 Watts
UHF:400~520MHz up to 7 Watts Frequency Stability
±2.5PPm Operating voltage
DC 7.2V (Rechargeable Li-ion battery) Channel NO.
128 Antenna impedance
50 ohm Mode of operation
Simplex or semi-duplex Battery capacity
3600mAh Color
Black Dimension(Exclude antenna)
13x6x3.5cm Weight
291g
Transmitter Output power
<=10w, >=5W Modulation mode
F3E Maximum deviation
<5khz p="" z="">Adjacent Ch. power
<=-65dB/ <=-60dB Spurious radiation
<7 p="">Pre-emphasis characteristics
6dB Current
<=2.8A(10W),<=1.8A(5W) CTCSS/DCS deviation
0.55KHz±20.15KHz, 0.4KHz±20.1KHz Intermediation sensitivity
8~12mV Intermediation distortion
<5 p=""> 5>7>5khz>10>
We wondered about a tri-bander from TYT with the TH-UVF9. And, as is often the case, I don't see the TH-UV8000SE on the TYT site (but they do have the TH-UV8000D.
So not really about ham radio, but radios play a central role in All the Light We Cannot See by Anthony Doerr. The book is set in WWII and tracks a young French girl and German boy as their lives intersect thanks to the magic of radio. I just finished it and it is definitely one of my favorite reads in the past couple of year.