SWR Power meter LCD indicator with protection – LDMOS mosfet or TUBE max 8000W

Description

SWR and POWER universal digital indicator with protection
.
Can be used for any amplifier – BI-polar, LDMOS or TUBE.
SWR bridge not included. It`s only digital meter.
IMPORTANT:
BUY THIS, ONLY IF YOU KNOW WHAT TO DO WITH IT.
If you want a DIY kit of this indicator, click –>
HERE
The Kit is with PCB + all components + Display + programmed mCPU – all in one package. Shipping with tracking number
If you want an upgraded version with Temperature meter and temperature protection, click –>
HERE
Shipping service is registered . Tracking number will be provided.
Features :
**NEW from 08.03.2018 – Ability to turn OFF the protection (if you don`t want to use it) by setting the SWR protection to 10. In this case, can be used as a normal SWR indicator.
**NEW** –  Showing “OVERLOAD”, if
SWR ports are overvoltaged
**NEW** – Additional option for “detector compensation”, for use only when needed.
* Practical mimimum measure – from 0W to 250mW (Divider =1), Maximum 8500W (Divider=185)
* Can show  SWR value up to 1000.
* Option for Power divider – custom user selectable from 1 to 185 – max 8500W
* Option for SWR divider – custom user selectable from 1 to 15.
*
UPDATE
! Now option for SWR protection level – custom user selectable from 1.5 to 10 (0.1 increments).
* from 9 to 12V power supply.
* Showing “SWR = NO SIGNAL” when no levels at swr ports.
* Showing SWR = NO ANTENNA when SWR < 1 (No connected antenna/load or FWD and REF are switched).
*
Showing  PROTECTION ON! on second row when protection is ON.
* Backup socket if user wants to put buttons on the front panel (external buttons).
* Manual turn ON/OFF the backlight of the display (ON by default)
* Three buttons to control the settings.
* Jumper pins for resetting the protection – manual or automatic . If automatic way is choosed, user can leave а jumper in place –  NOT recommended (especially for relay based schematic).
If user wants to manual reset the protection – reset pins can be maked as external “non-hold” button (on the front panel). In this case protection will not reset, until user press the button.
You can use it with some SPDT reed relay to control  up to 100mW RF signal.
This type of protection can fully stop the RF signal to the amplifier – manual resetting is the best way to fully protect RF amplifiers from high SWR.
* Saving values in case of loosing power supply. Last saved values are loaded after power supply is back.
* Board size – 85×50 mm
Instructions manual is included.
May require calibration.
Unit can measure RF power via “direct output method”.
This means that RF power can be measured directly  from the output of the final amplifier.
Unit can work even with HF directional couplers.
Example : If you will measure power about 1000W, you must have external divider of 69 . This means 680 Kohm to 10 Kohm. Up to 1000W, resistors must be 0.6W 1%. Above 1000W up to 8000W , you must use resistors of at least 1W 1% , all of them metal-film ones
Can be used with any SWR bridge – external dividers for FWD and REV must match the user selected SWR divider. Max divider is 15 – this means you can induct up to 75V into forward and reverse sides of your SWR bridge.
FOR VISUAL INFO – SEE THIS VIDEO HERE
Shipping service is registered . Tracking number will be provided.