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POST OFFICE DON`T ACCEPT PARCELS FOR USA TEMPORARILY, DUE TO TARIFFS MESS.

THE ONLY WAY TO SEND PARCELS TO USA IS DDP METHOD(TARIFFS ARE PAID IN ADVANCE).

SO, THE DDP COST(TARIFFS) IS ADDED TO THE SHIPPING PRICE ONLY FOR USA CUSTOMERS. THIS IS A NOTE, SO NOT TO HAVE ANY CONFUSED USA CUSTOMERS.

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.

IMPORTANT 2: THIS ITEM REQUIRES ADDITIONAL WORK AND/OR SOLDERING BY THE USER. IT`S NOT A "READY USABLE" ITEM.

Shipping service is registered . Tracking number will be provided.

Features :

Bridge

** From 12.12.2023, there is a new type of bridge in the kit. It`s more reliable and more linear.

* RF power up to peak 1000W (1000W recommended max power)

* Transformer type of bridge.

* Have "shield area" - if needed, to be shielded or mounted in box (shield box).
* Self SWR of the bridge not exceed 1.05 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.

Transformers are not made, because different users may want different ratios. Wire for transformers is not included. Recommended wire between 0.40 and 0.45 mm.

Empty resistor places are for additional dividers, if needed and for user decision, what dividers to place there. Resistors are not included.

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 minimum 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 choosen, user can leave а jumper in place -  NOT recommended (especially for relay based protection schematic).
If user wants to manual reset the protection - reset pins can be made 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
* Bridge size - 50x100 mm

Instructions manual is included.

Make you divider, set it in the menu and you are ready to go.

Unit have the ability 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.

Transformers are not made, because different users may want different ratios. Wire for transformers is not included.

Empty resistors places are for additional dividers, if needed.

Power cord/connector is not included.

This is a kit for various constructions, not a complete unit in a box - requires some work from user.

Please, make sure to notice these conditions.

FOR VISUAL INFO - SEE THIS VIDEO HERE

Shipping service is registered . Tracking number will be provided.