DV Development Group DV4mini Manuel de l'utilisateur - Page 6
Parcourez en ligne ou téléchargez le pdf Manuel de l'utilisateur pour {nom_de_la_catégorie} DV Development Group DV4mini. DV Development Group DV4mini 12 pages. D-star/dmr-hotspot-usb-stick
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For such a hotspot you use your own call sign. Reduce your transmit power to just
enough to cover your living area for reliable communication.
Hardware:
Use the Hotspot Mode to enter the frequency to be utilized for DV operation.
(check your band plan).
Your transceiver will be set up for Simplex use - RX and TX on the same frequency.
The DV4mini takes the 5 Volt operating voltage from the USB interface. On a few
PCs this voltage however may be too low (we measured below 4.5 V on some). In
this case you can't operate.
The best solution is then to use a USB adapter with its own power supply.
Technical Data:
Frequency range:
Resolution:
RX/TX D-Star:
RX/TX DMR:
Modulation D-Star: GMSK (Gaussian 2FSK)
Modulation DMRPLUS:
Antenna connector:
USB interface:
Operating Voltage:
Current max RX:
TX (with 12 mW) 188 mA
S-Meter
DV4mini output power steps:
Antenna:
Comply with your country's regulations regarding automatic operation!
The DV4mini requires an antenna. It must not be used without an antenna. You
can use the commonly available 'rubber ducks' with a SMA connector like the
ones used with walkies. The DV4mini must not be connected to a high Yagi or
similar antenna.
420-450 MHz
ca 250 Hz
Duplex +/0/- any shift
Simplex (TX=RX QRG)
4FSK Raised Cosine
SMA female 50 Ohm
USB type A
4.75 - 5.25 V
15 mA
1dBm resolution
accuracy +- 1dBm (> -100 dBm and <-50dBm)
10 steps
0 = 0.03 mW
1 = 0.4 mW
2 = 1.2 mW
3 = 2.4 mW
4 = 3.9 mW
5 = 5.5 mW
6 = 7.1 mW
7 = 8.8 mW
8 = 10.5 mW
9 = 12 mW
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User Guide 2015