SWR Power digital meter kit with protection LCD HF 3-30 Mhz up to 1000W

Description

SWR and POWER universal digital indicator with protection
+ Bridge board
.
Can be used for any amplifier - BI-polar, LDMOS or TUBE.
SWR bridge for max 1000W included.
IMPORTANT:
BUY THIS, ONLY IF YOU KNOW WHAT TO DO WITH IT.
Shipping service is registered . Tracking number will be provided.
Features :
Bridge
* Balanced type bridge
*
Have "shield area" - if needed, to be shielded or mounted in box (shield box).
* Bridge board don`t have sockets , because user can make it in shield box and outputs can be done via "feed through capacitors". Flexible for variable constructions.
* Self SWR of the bridge not exceed 1.03 at the highest frequency.
* Resistor places are free, so user can decide what dividers to use.
* Female socket with cables included for connection with the meter.
* It may require a minimum amount of power, something like 20W-30W.
Meter
**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 (step 0.1).
* 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 - 85x50 mm
* Bridg
e size - 100x50 mm
Instructions manual is included.
Make you divider, set it in the menu and you are ready to go.
Unit is intended to measure RF power via "direct output method".
This means that RF power is directly measured from the output of the final amplifier
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
Еxternal 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.