RTC07S (super low cost) Si5351 Transceiver Controller

This low cost version transceiver controller designed for minimalist or simple mono-bander transceiver. We just have to connect the jumper pin to do calibration setting, if setting and BFO setting (if we used the BFO out) then, connect one or two frequency out to the exciter

Specification:
*. 8 Digit 7 segment
*. ATMega16 controller
*. Si5351 synthesizer (LO & BFO)
*. VFO frequency out (0.1 – 99 Mhz) seven segment digit limitation, not the chips
*. Adjustable IF/BFO frequency setting
*. USB-LSB-AM mode control pin out.
*. 2 push button (mode and setting)
*. 1 ADC input 0-2.56V for s-meter
*. 1 DI/O for RX/TX
*. 3 DI/O for mode (USB/LSB/AM) out control
*. 7 LED Smeter indicator

*. you can buy this item on our web
*. https://hambuilder.com U$17
*. https://tokopedia/jalapindai Rp. 185.000

 

 

 

 

Hambuilder Team

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New HBR4HF released

New HBR4HF is a compact 4 Band HF transceiver.
This simple and low cost radio is also suitable for entry level HAM to start do communication on HF band.

*. Assembed unit, tested and ready to use.
*. New 2.2 Inch TFT display,
*. 4 amateur band (80m, 40m, 30m sharing filter with 20m)
*. TX covering 80m/40m/30m/20m,
*. RX covering 3.5-14.5 MHz,
*. Step 1Hz, 10Hz,100Hz,1KHz,100KHz,
*. Output 13.8V 45-50W,
*. CW SSB modulation with 700Hz tone,
*. Display VFO A/B, mode, Smeter, Band, RX/TX.
*. IF Freq 11.059.200.

Band Coverage (programmable) :
80m (3.500.000 – 4.000.000)
40m (6.000.000 – 7.250.000)
30m (10.100.000 – 11.500.000)
20m (14.000.000 – 14.349.999)

Package:
*. Exciter complete set
*. DC chord
*. Condenser Microphone

store link New Hambuilder HBR4HF

 

 

Hambuilder Team

Hambuilder booth at “Bandoeng – Netherlands” Amateur Radio Fair 2018 (23rd-25th March)

Thank you for visiting our booth and spending time to review our product on “Bandoeng – Netherlands” Amateur Radio Fair 2018 (23rd-25th March)

YC1CCD
YC2KKL
YD0GTE
YC1TEB
YD1GGS
YD1GNM
YB0PUL
YD1XCK
YC2DYS
YD0RWY
YD1DJO
YD0SMB
YD1WBG
YC1VXM
YB1UUU
YC0LIB
YC1EAP
YB1RII
YD1OFA
YD1SRF
YD1BLL
YF1DKO
YD1ERE
YC0PGN
YD0JUZ
YD1KCX
YD1GED
YCHBO
YD1HIA
YC1EID
YC1ETL
YC1CAR
YD1XCG
YD2BKN
YD1IVQ

Thank you for visiting us and making your first purchase! We’re glad that you found what you were looking for. It is our goal that you are always happy with what you bought from us, so please let us know if your buying experience was anything short of excellent. We look forward to seeing you again on next Hamfest.

Hambuilder Team

HBRM3 Hambuilder iambic keyer

This iambic keyer have a lot improvement since the first one (V1.0). Gold painting on aluminum enclosure make this keyer look more attractive and robust. Stacked transparent acrylic structure cut by Co2 laser and CNC as mechanical part.

Inside the aluminum enclosure ATTiny13 microcontroller works as main controller for dit dah switch and reading ADC voltage from potensiometer (voltage divider) to measure the speed.

 

 

 

 

Spec:
*. ATTiny13 microcontroller
*. adjustable speed
*. transparent acrylic paddle
*. gold painting aluminum enclosure
*. 9V battery operated
*. aluminum enclosure dimension 100mm x 85mm x 25mm
*. total dimmension with paddle and knob 145mm, 85mm x 50mm
*. 250gr weight
*. LED indicator

 

Hambuilder Team

Sayonara eBay!

After 2 years we tried to provide resources for HAM tools/component, which based on our experience will help and make HAM experiment more interesting and more easier we decide to say good bye to eBay. By 1st January 2018 we closed our store on eBay. We will continue to do experiment and do creative thing to make our hobby getting nice and better. We will launch and operate our web page at http://hambuilder.com that currently not fully operated yet (so sorry if you have visited this site but did not get the proper response). We hope by running this web by the end of this month, we could give better service and support.

Our road map for this year is:
*.  increase the performace for our existing exciter (HBR10HF, HBR4HF and HBR1HF)
we will develop new PCB or additional daughter board consist of
*. accurate AGC (AD603? or similar)
*. accurate S-meter (AD8307)
*. accurate SWR reading (AD8307)

*. adding optional roofing filter
*. adding simple digital audio filter
*. get more RF amplifier power output (we reach 50 watt now)

*. Continue instrument development (Antenna Analyzer that always missed LCD stock we got new vendor now)
*. Antenna Tuner (semi automatic)
*. RF amplifier protector
*. Standalone SDR transceiver

There’s a lot homework we must do

Hambuilder Team