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Dive Into the New Age of HAM radios

Our Products

LMR SDR 1.1

The product which is a variant of SDR-1000, is a handy HF transceiver (covers 1.8MHz up to 30MHz) kit. The design is inspired from UT3MK, the AVALA SDR and www.ye3cif.com YE3CIF SDR TRX.

 

Arduino NANO is used as a clock generator and controller for Si5351 synthesizer and this makes it easier to operate the transceiver with computer. As an indicator, LCD display is connected which allows seamless monitoring of the transceiver performance. It is to be noted that, this product is not equipped with Power Amplifier and LPF. However there is a provision to integrate these based on user's interests.

LMR 1.1.jpg

LMR SDR 1.6 

Big Thanks to Mr. Arif ( YE3CIF) for this another upgrade in LMR, I am sharing his web site link for more LMR related blogs www.ye3cif.com 

Transceiver of 10-160 meter band, which comes with improvement of having NO relay mechanism for BPF switches. This is eliminated by adding adequate resistor-transistor circuits. Apart from this, Arduino NANO is replaced with ARM based STM32, which makes this variant more versatile.

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We can assure that the transceiver is well tested and so is the seamless switching of diodes for BPF.

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ESP32 Standalone Transceiver

This is a standalone SDR variant, HF transceiver developed by Mr.OM Noors (YD1GSE). This product uses the ESP32-A1S processor which has an in-built Audio Codec chip (ES8388). The integrated TFT LCD touch screen (2.8 inch display - ILI9341) makes it an excellent standalone platform for the  HAM Radio enthusiasts.

 

It is to be noted that exciter front end design is similar to the LMR SDR, which is intended to enable the users to make standalone variant of LMR SDR.

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Sailor PCB

This PCB is specially designed for sailor 2130 marine Amplifier modification, designed by VU2XPZ. The PCB comes with fault protection having cutoffs set for various parameters like temperature, SWR and forward power.

Sailor PA PCB.jpg

PC SDR Card

The SDR card designed by VU3ZOF, combines the design from SDR 1.1 and 1.6 to best suit the transceiver performance and to reduce the integration complexity. This design makes sure the components used are easily available in market and easy to integrate. The versatility and stable performance metrics of STM32 is also brought into this design.

PC SDR STM32.jpg

Relay Switch

This is specially designed for users who wants to connect LMR with Power Amplifier which does not have antenna switching.

Antenna switch for LMR.jpg

SOP to DIP convertor for 74HC4051

This helps to ease the integration effort and to compensate for the DIP shortage in our markets.

SOP to DIP PCB 74HC4051.jpg

0.47uH(470nH) inductor

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0.22uH(220nH) inductor

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Original CD 74HC4051

Please check datasheet for specifications.

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5351 module 

MS5351 with Tcxo 25mhz Xtal 

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