Showing how the OM-Power Automatic amplifiers like the OM-2500A, OM-4000A, can control the selection of up to ten antennas driving an antenna switch and up to ten filters. A Vector Network Analyzer, Array Solutions’ VNA UHF is plotting the S21 (Filters Insertion Loss) continually.
The OM2500A linear amplifier is designed for all short wave amateur bands from 1.8 to 29.7 MHz (including WARC – bands ) and all modes. It is equipped with the ceramic tetrode FU-728F.
The advantages of OM2500A:
- Automatic switching between bands
- Automatic tuning with the band according to segments
- Automatic switching of band pass filter
- Automatic switching of the antenna switch
- The possibility to use 2 different antennas within one band or segment
-
Full compatibility with
- – ICOM
- – YEASU
- – ELECRAFT
- – Ten-Tec Orion
- – Kenwood
- – Icom transceiver protocol using by microHAM devices, CI-V output (MK II, MK2R, MK2R+, etc)
Specifications of the OM-2500A:
Frequency coverage: Amateur bands 1.8 – 29.7 MHz including WARC
Power output: 2500 W in SSB and CW
2000 W in RTTY, AM and FM
Driver Power: 60 to 80 W for full Output Power
Input impedance: 50 Ohm VSWR < 1.5 : 1
Output amplification: 15 dB
Output impedance: 50 Ohm unbalanced
Maximum output SWR: 2:1
SWR protection: Automatic switching to STBY , when reflected power is 350 W or higher
Intermodulation distortion: 32 dB below nominal output
Suppression of harmonics: < -50 dBc
Tube: FU-728F Ceramic tetrode
Cooler: Centrifugal blower + axial blower
Power supply: 2 x configurable for 220, 230 or 240 V AC – 60 Hz one or two phases
Transformers: Two toroidal transformers 2.0 kVA each
Protection circuits: – SWR too high
– Anode current too high
– Screen current too high
– Grid current too high
– Mistuning of the power amplifier
– Soft start for protecting your fuses
– “Switch –on blocking“ at top cover removal
Bar graph indications: – Power output – bargraph 50 LED
– Reflected power – bargraph 20 LED
– Current at screen ( Ig2 – bar graph 10 LED )
– Anode voltage, anode current, tuning – bargraph 30 LED
LED indicators: – Control grid current ( Ig1 – 2 LED )
– WAIT – Preheating of tube (180 sec )
– STBY– Standby
– OPR – Operating condition
– FAULT – failure, switching off for about 4 seconds
– Inhibit – operating condition
– ANT 1 – which antenna is in use
– ANT 2 – which antenna is in use
– UP – DWN – Listing in menu
– MAN – Manual operating
– AUTO – Automatic operating
– TUNE – Tuning
– ANT – Antenna selection
Parameters: 485 mm (19.1″) W x 200 mm (7.9″) H x 455 mm (17.9″) D
Weight: 40 kg (88 lb)
Take your Ham Radio Portable with iPortable. A look at these really cool rack mount units for HF/VHF/UHF Ham Radio. Portable Pro2 Equipment Rack Syste... Read more
“Nestled deep in the Chequamegon-Nicolet National Forest in Northwest Wisconsin is the small town of Clam Lake. Clam Lake is best known for the... Read more
K4BEN, announces the official beta of his Remote Radio Service, DXRemote.net. It is a very simple concept: his enterprise-class, redundant n... Read more
ICOM Hamvention 2022! Take your contesting experience to the next level with the latest LDMOS power device with features supporting a SO2R operation i... Read more
AMSAT-UK is very happy to announce the 2022 AMSAT-UK International Space Colloquium will be held as part of the RSGB Convention on October 8-9 at the... Read more
This morning Icom announced that it will have “new and exciting is on the horizon” during Dayton Hamvention 2022 Will it be a new HF or VH... Read more
The US Department of Defense will host this year’s Armed Forces Day (AFD) Cross-Band Test on Saturday, May 14. While Armed Forces Day is May 21, the A... Read more
Global Radio Guide During times of crisis, radio hobbyists turn on their radios and tune to the shortwave “Global Radio” bands for context, perspectiv... Read more
In this video I show different antennas including Hamsticks to have an economical way to get on the Ham Bands. Hamsticks are mono band HF antennas tha... Read more
Posted by Wayne KE8JFW WiMo of Herxheim, Germany, has appointed DX Engineering as the sole North American distributor of contesting and DXi... Read more
News
iPortable Rack Systems | Ham Radio Rack Mounts
The history of communicating with submarines underwater
K4BEN, announces the official beta of his Remote Radio Service
New at ICOM Hamvention 2022!
AMSAT-UK announce the 2022 International Space Colloquium
ICOM will announce news at Hamvention
Annual Armed Forces Day Cross-Band Exercise Set for May 14
Global Radio Guide: Summer 2022
How to use Hamsticks in different ways for use on the HF bands in Ham Radio
microHAM to be Sold Exclusively in North America by DX Engineering
Lido mounts are a great way to mount your radio in your mobile. Read more
The Barrett 4075 high power HF Transmitter is a compact rack mounted communications solution developed for base station applications in large HF netwo... Read more
“First, we would like to thank you for your continued support of our company and products. As Heil Sound Communications continues to grow we wan... Read more
This video shows the demo we are showing this weekend (May 20-22) at Hamvention in Dayton, Ohio. This demonstrates the core underlying technology behi... Read more
ACOM 2020S | Solid-State 1.8-54 MHz Linear Amplifier Easy to operateThe overall operation of ACOM 2020S is extremely simplified: the touch screen menu... Read more
High power linear amplifier for the 23 cm Amateur Radio band Our high-performance amplifier for the 23 cm amateur radio band achieves great performanc... Read more
Did you know that Antenna Genius can be combined into a super switch matrix, expanding on the number of either antenna ports or the number of radios?... Read more
List Price $795.00 km3km.com Read more
CatMeters for new Yaesu transceivers For FT-450, FT-950, FT-991, FT-2000, FT-DX10, FT-DX101,FT-DX1200, FT-DX3000, FT-DX5000, FT-DX9000 Instantly... Read more
New HF amplifier 1,8 - 30 MHz -50-54 MHz, output power 2000 W (1800 to 50 MHz) Large TOUCH SCREEN display (7 "), 3 individually selectable antenna out... Read more
Equipment
Lido Radio Mounts
Barrett 4075 High Power HF Transmitter
THE NEW HEIL HAM RADIO!
Introducing SDRconnect – SDRplay Hamvention 2022 demo
ACOM 2020S | Solid-State 1.8-54 MHz Linear Amplifier
MKU PA 23CM-1200W A – Power Amplifier
Antenna Genius
mercuryAT available in the next few days
CatMeters for new Yaesu transceivers
Italab – HF amplifier + 6 meters – 2KW
