DV4home V2
The DV4home V2 is another member of the successful family of DV4 products. As usual it supports all digital modes, while simplifying and extending the supported functions. While it acts as a “home” for the DV4mini it can be easily used mobile or portable as well. It is a stand-alone unit that does not need a PC to operate. (DV4mini not included)
(Automatic updates of firmware via Internet)
DV4home V2
The DV4home V2 has 2 AMBE3000 chips, a microphone connector to the unit. There is a built-in speaker and the microphone is included.
These components allow these additional functions:
- Direct Internet transceive mode without a DV4mini by using the microphone and the speaker. This is an economical alternative if no local wireless signal is needed. In this mode the DV4home supports D-Star, DMR, NXDN, and C4FM.
- Dual mode support: even without a DV4mini inserted the unit can be simultaneously connected to a D-Star and a DMR reflector, using 2 separate speakers to play the respective audio streams.
- Conference mode requires a DV4mini inserted into the unit and allows to use the built-in microphone/speaker connectors and the RF connection through the DV4mini to a DMR or D-Star radio. This mode works in D-Star and DMR.
- DMR/D-Star Bridge mode allows to interconnect DMR and D-Star reflector rooms using the licensed DVSI AMBE chips. This mode bears the risk of creating loops in the network, therefore a free license key is required which also helps that the installations can be supported by the network administrators to assure a flawless integration.
Interfaces:
Power |
9-15V, 1A, barrel connector 5.5/2.5mm |
Ethernet |
RJ-45, 10/1007/1000 MBit/s |
Speaker |
Stereo 3.5mm for simultaneous dual mode operation |
Microphone |
DTMF, Electret with modular connector |
DV4mini |
Integrated shielded compartment with USB connector |
USB |
WLAN or LTE stick for wireless internet connectivity |
Line out |
3.5 mm 1 Vss |
Display |
256 x 64, 4 lines OLED + HDMI |
Temperature range: |
-40C – + 85C |
All data is subject to engineering changes.
Review
ID-4100A vs ID-880H Smackdown
ID-4100A VHF/UHF Dual Band D-STAR Transceiver Specifications General Frequency coverage TX RX 144–148, 430–450 MHz 118–174, 230–550 MHz* *Guaranteed… Read more
Baofeng BF-F8HP Radio Review
Baofeng BF-F8HP “The following video is a detailed look at the Baofeng BF-F8HP dual band portable two-way radio. Topics covered in this v… Read more
VHF
VHF Handbook Available for Download
The new version of the IARU Region 1 VHF Handbook 7.50 covering VHF, UHF and Microwaves is now available for download. The handbook has chapters on Ba… Read more
Alinco DJ-G7T/E Tri-Band ( 144 , 430 and 1200MHz)
Get ready for action as you hear signals that you may never have heard before. The DJ-G7 tunes 0.530-1299.995MHz continuously, and you can enjo… Read more
Icom IC-M73PLUS
Icom IC-M73PLUS PROFESSIONAL VHF MARINE TRANSCIEVER The IC-M73PLUS builds on many of the features that made the IC-M71 the choice of many marit… Read more
TYT MD-2017 Dual Band DMR
TYT just released the first ever image of the upcoming TYT MD-2017 dual band DMR handheld radio. TYT MD-2017 Dual Band DMR Dual time slot for point to… Read more
Antenna
Mosley PRO-67-C-3 – HF Antenna
One antenna, 4 Elements on 10, 3 Elements on 12, 3 Elements on 15, 3 Elements on 17, 3 Elements on 20, 1 Element on 30 Meters and 3 Elements on 40 Met… Read more
Force 12 FPA-20-OCF Vertical running through 8 to 6 meters
Does your neighborhood forbid antennas but allow flagpoles? Is tearing up your lawn to lay 64 radials not an option? Or maybe you just want a high-per… Read more
Momobeam MB17 10/15/20/40 m – Yagi Antenna
MB17 10/15/20/40 is every contester’s dream quad-band trap-less yagi with compact design, – high power handling, – large bandwidth thanks… Read more
Digital Modes
Video Demonstrates Digital Voice Plus Video “Teleconferencing” Scheme for HF
Rick Peterson, WA6NUT, in Colorado, is promoting FreeDV plus Video, a digital voice-plus-video application for HF. According to Peterson’s QRZ.com pro… Read more
JT65 ‐HF Operator’s Guide
JT65 An introduction to JT65: A weak‐signal high frequency digital mode WSJT modes of di it l digital communi ti ca on were ori i ll g na y dl d eve o… Read more
ZL1BPU Wins June QST Cover Plaque Award
The winner of the September 2015 QST Cover Plaque award is Murray Greenman, ZL1BPU, for his article “FSQ: Fast, Simple QSO.” The QST Cover Plaque Awar… Read more
Tips for FT8 DXers
Tips for FT8 DXers Gary Hinson, ZL2IFB 1. The digital modes are being actively developed and the protocols/operating conventions are still evolving. U… Read more