![ft920 for vlf receiver ft920 for vlf receiver](https://www.stormwise.com/vlfreceiverbreadboard1.jpg)
No duplicate programming or code plugs are necessary.
![ft920 for vlf receiver ft920 for vlf receiver](https://www.picclickimg.com/d/l400/pict/263362600580_/Yaesu-FT920-HF-and-50Mhz-Transceiver-with-Inrad.jpg)
Depending on your radios antenna jack, you may need to pickup an SMA-M to SMA-M adapter.Īll channel selection and volume adjustments are done using the handheld. I use an Anytone D868 on DMR as well as analog with the hookup diagrammed below. The power included power cable is compatible with handhelds using the standard two pin Kenwood style connector, such as an MD380, D868, GD77, UV5R, F8HP, UV82, etc.
FT920 FOR VLF RECEIVER FULL SIZE
This allows me to use the full size hand microphone as well as connecting the four watt audio amp powering the speaker. The 3′ RF cable to attach the radio to the amp, and the control cable.
![ft920 for vlf receiver ft920 for vlf receiver](http://www.vlf.it/romero2/trafo.jpg)
You could add a Spkr/Micr to the handheld, but you would still be bypassing some of the best features. The simplest configuration is using the included RF cable to attach the radio to the amp. This is due to the circuit switching design of DMR Tier II and P25 Phase 2. These amplifiers will only operate within their specified VHF or UHF range. This will allow you to run straight through directly to the antenna without power amplification on that band. To operate VHF through the UHF (U25) amplifier, or UHF through the VHF (V25) amplifier, simply power off the amplifier. Note: The V25 D and U25 D were designed to include DMR Tier II (TDMA) and P25 Phase 2 along with all other modes. I was curious to see the internal layout of the amp and to no surprise, there was a 5/8″ finned heat sink spanning the entire length and width of the case along with air vent along the back of the enclosure. The basic frame measures 4.6″W x 1.3″H x 5.5″D (excluding the SO-239) and weighs in at 26oz. This is low enough for the amp to be powered by the 10A accessory jack in your vehicle. The maximum current drain from my 13.6V 30A power supply was just under 6A. The power was tested using the analog side of both into a calibrated Bird Termaline wattmeter. The VHF V25 (non TDMA) and the U25D for UHF DMR. I tested the power on two different models. Although the driving force was my DMR handheld sitting in my cup holder, the transmit audio was that of the included hand microphone and the receiver audio out was coming through the built in speaker driven by a four watt audio amplifier. Although they can function as a simple ‘In and Out’ power amp, this is about as close to a full mobile as you can get. I found these to be much more than a typical power amplifier. – 3′ Interface Control Cable (Kenwood K1 connectors) Note: This review was done using an Anytone D868UV on both DMR and analog. The D series are true TDMA Tier2 DMR amplifiers. It performs more like a mobile than it does a power amp. The recently announced BTech Digital and Analog amplifier series puts a whole new spin on mobile operation.