by John ‘Miklor’
BTech has introduced a low profile Tri-Band Mobile Transceiver to the ham radio marketplace. It has all options of the UV2501 with the addition of the 220MHz US Ham Band, both transmit and receive.
The +220 is specifically designed for 210-230MHz operation. This is note worthy for US hams as some models currently advertised as Tri-Band operate in the range of 240-260MHz. Unfortunately, this is not the the range needed for the US ham band, and they are not adaptable to frequencies below 240MHz due to their internal filtering.
In the Box
Included with the radio are:
– Microphone with a 16 button keypad
– Chrome metal microphone hanger
– Metal mounting bracket with screws
– DC power cable with connector
– USB Programming cable (which was optional)
– Full 30 page English User Manual (not a pamphlet)
UV2501+220 – Weight: 408 g (14.4 oz)
Size: 98(W) x 35 (H) x 118 (D) mm (3.8 x 1.4 x 4.6″)
The frame is rugged, with a solid cover and a hefty aluminum heat sink and now includes a cooling fan that draws air from the inside of the radio, not just the heat sink. I would still be careful mounting the radio in an extremely tight location. As with any transceiver, it will need room to breath.
The radios are terminated with a standard SO-239 connector.
The +220 includes 210-230MHz transmit capability. My main interest was the 220MHz US ham band, as I have several 220 Ham repeaters within 35 miles from my house. The signal strength and audio reports have been excellent.
– Power – The UV2501+220 is rated at 20-25W and holds true to those estimates.
A 13.8VDC power supply was used emulate a standard auto battery. Running the radio at high power into a Bird Wattmeter for 3 minutes showed no decrease in power. There’s a thermally connected cooling fan in the rear that helps keep the radio at a respectable temperature level. The fan pulls warm air from the radio, not just the heat sink.
– Frequency Steps – Steps range from 2.5 to 25 kHz.
– Audio Scrambler – The Audio Scrambler utilizes the voice inversion process. This feature must be activated on two similar radios (Tx and Rx) to be effective. Although the function works properly, check with your countries regulations regarding its use.
The radio has 200 channel capability with a top end range to 520MHz. The receiver sensitivity is on par with any mobile I’ve used in the past and there’s plenty of smooth, clear and loud audio.
New Features Added
– High / Low Power – Now selectable from the microphone keypad.
– External Speaker – This is a new addition for the UV2501 series
– Cooling Fan – Increases the airflow from inside the radio
– Display SYNC – An option has been added to allow the Upper and Lower displays be synced, allowing the upper display to show channel Name while the lower displays the Frequency. Dual channel display (TDR) is still there, but sometimes you just want to display the channel you’re using. Now you have a choice.
– Memory Mode Lock – The radio can be Locked into the channel mode (MR).
– Menu Lock – While in the channel mode, the Menu option can be locked out to prevent accidental field programming.
– Reset Lockout – The Reset option can be locked out to prevent accidental reset. Another nice safety precaution.
– Auto Power Off – This allows the radio to shut off if the receiver is inactive for a preset amount of time.
– Dual Watch Delay – allows the receiver to stay on a channel for a preset amount of time before returning to the primary channel after the secondary channel is clear. You can now select the delay time (up to 50 seconds) before the radio returns to the Dual Watch mode.
– Squelch Tail Elimination – Eliminates the squelch tail if the station or repeater being received has the same function active.
The radio comes with a full function keypad style microphone. Functions include: Menu, Up, Down, A/B, Exit, Reverse, Scan and Lock, and Hi / Lo power selection.
The OTA reports are excellent with plenty of audio, so there’s no reason to shout. My best results were talking in a normal voice about an inch or two away.
The radio has a tri-color display, allowing color options of the familiar blue, orange and purple. The LCD colors can be selected to suit your personal preference with a screen size of 1.4″ (3.4mm) wide. The LCD can be formatted in three different formats: Alpha Characters, Frequency, or Channel number.
Manual programming is pretty straight forward once you enter a few channels. A programming guide can be found at Manual Programming with a Menu Definition summary available at Menu Definitions.
There is a single bank of 200 channels. You can set a channel to be added or removed from the scan list using software.
The software for the UV2501+220 was designed specifically for this radio, due the added features and frequencies. Prior software is Not compatible with this radio. Loading this software to another radio will Not add new features to that radio. Use only the software that is designed specifically for your radio.
The programming cable is a 1m (39″) USB to 3 pin 3.5mm. My recommendation is to purchase a cable that utilizes an FTDI chipset, such as the PC04. It may cost a few dollars more, but it’s plug-n-play. If a generic cable is acquired, it will more than likely require a backdated driver. Those drivers can be found at Cable_Driver
Front Panel Operation
The buttons may be a bit difficult to read in the dark. There is enough light to show where the buttons are, but not to clearly read them. Fortunately, the microphone keypad is well lit, so programming can easily be done via the keypad.
The 7 buttons are Function, Monitor, Call, VFO/MR, FM Radio, Exit A/B, and Hi/Lo Power.
Up to six Alpha Numeric characters (upper and lower case) can be displayed to identify each channel.
Scanning in the VFO mode allowed me to scan either the VHF, 220MHz, or UHF band. In the Channel mode, the scan would select any channel in the list regardless of band.
Prior issues resolved
Early first generation radios had a few audio issues that required ‘work around’. After many hours of drive testing with the new +220 series, I can attest to the UV2501+220 having none of the prior issues. The developer and manufacturer listened and got it right.
– No audio issues (base or mobile)
– Display Synching option
– Extra features listed above not found in similar models
– Plenty of power with clean audio
– Lightweight and durable enclosure
– More than ample heat sink with heat sink fan
– Excellent sensitivity and receiver audio quality
– Small compact size
– An external speaker jack
– Added 220-225 MHz for the US Ham Band
– Small front panel buttons
For mobile drive testing, I teamed this radio with a Nagoya Tri-Band TB320A and SB-35 NMO mag mount and the results were excellent. With the added features mentioned above and no issues, this radio was quite an impressive tri-band package.
More Information: Miklor.com