feb 11

VR-P25 Power Amplifier voor Portofoons

VR-P25 is a portable, lightweight, Wide coverage RF booster amplifier for Handheld Radio equipment, proprietary and emerging waveforms.

Two Way Radio Power Amplifier
For digital DMR, dPMR, P25, MP1327 and Analog Radios
model VR-P25D DMR double time slot
FEATURES:
•Dual mode for Digital and Analog Radio. Automatic recognition of digital and analog systems. Use for DMR, dPMR, D-STAR, C4FM, etc.
•High output power up to 25 watts.
•Input power from 2 to 5 watts. With 2 to 5 Watts Handheld Radio input and covers the frequency band of VHF or UHF.
•Small size: This amplifier’s size makes it the perfect companion for held operation without the added weight.
•Includes Voltage Spike Suppression. Over Temperature Protection. RF sensing. Automatic Power Control (APC), Harmonic Filters.
•Built-in speaker and microphone socket.
•Status indicator Lets you know the working status.

GENERAL SPECIFICATIONS

FREQUENCY RANGE ◦400 – 470 MHz
◦136 – 174 MHz
◦350 – 400 MHz
◦222 – 225MHz

POWER OUTPUT 25 Watts
INPUT POWER RANGE 2- 5 Watts
CURRENT CONSUMPTION 4.5 A
SUPPLY VOLTAGE 12V-15V (DC)
INPUT,OUTPUT IMPEDANCE 50 Ohm nominal
RF CONNECTORS RF lnput( Radio) – SMA*RF Outpot(antenna) – SL 16*
•RF connectors may be ordered in any configuration of TNC or N-fype per customer
SIZE (HxWxD) 35 x 115 x 135 mm
WEIGHT 800 g

feb 09

Talker Alias on BrandMeister

Bron: mrickey.com

Talker Alias allows a radio to receive contact information from the transmitting radio. Much like D-STAR and Fusion, this removes the need to have a large contact list. Additionally, BrandMeister helps the process by creating a Talker Alias string if the transmitting radio doesn’t send one.

Talker Alias was added to the DMR ETSI spec in June 2016. To date, the only radios to support Talker Alias are Hytera and the MD Tools software (MD-380, MD-390, and maybe the MD-2017). Additionally, Talker Alias is only passed through Hytera repeaters, MMDVM-based repeaters and most hotspot devices (OpenSpot, MMDVM/Pi-Star, etc).

With those limitations in mind, this is still a great feature. Hytera and TYT covers a large chunk of DMR users worldwide.

BrandMeister as included the ability for you to modify the text sent via Talker Alias, this is done through the Selfcare page using the APRS Text field. BrandMeister always adds your call sign in front of the APRS Text field.

In the last heard list you can see which users have set this text and which have not. The default value is “DMR ID:3106xxx”.

Here is an example of some people with APRS Text, and some without. I’m not trying to call anyone out here, just providing an example.

For the benefit of those using Talker Alias, please modify your APRS Text to have your name. This also gives you some control over how your name is shown…

More information about Talker Alias and how it is supported on BrandMeister, please visit the wiki at https://wiki.brandmeister.network/index.php/Talker_Alias.