Hambuilder SSDR100 prototype

This is the next Hambuilder transceiver (SSDR-100)
*. 3.2 inch TFT display
*. STM32F407 as display control and waterfall processing
*. ATMega8 (21st order FIR LPF processing)
*. Weaver SSB modulation and demodulation method using 2 x ADC MCP8201 and 2x DAC TDA1543
*. Embed CW decoder/Encoder using ATMega8
*. Bluetooth Access for setting, remote access and firmware upgrading
*. Android remote access Apps
*. 18 button access for band and control
*. 1 rotary main dial
*. 3 rotary for RIT/XIT, Bandwith Control and WPM
*. PC audio interface for digital mode
*. 80-100 Watt power out

Hambuilder Team

 

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HBRADD1 for HBR4HF, CW Encoder-Decoder and Digital Mode set-line

HBR4HF memang menggunakan desain klasik dengan fitur yang umum saja. Beberapa rekan mempertanyakan mengenai absen nya mode CW dalam desain HBR4HF. Hal tersebut sebetulnya sudah masuk kedalam road map pengembangan yang sebetulnya sudah sangat lama di desain. HBR4HF memang dibuat sederhana sebagai pintu masuk kedunia HF dengan pertimbangan harga dan memang faktanya untuk amatir lokal rasanya masih sangat terbatas penggunaan mode selain SSB.

HBRADD1 adalah road map setline dari HBR4HF, mengapa dibuat terpisah, kembali ke alasan harga serta tidak semua amatir menggunakan CW, HBRADD1 juga memungkinkan di kembangkan dengan fitur GPS (APRS) bila nantinya mau dikembangkan untuk radio matirim yang murah. Pada BRHADD1 ini juga telah dilengkapi interface ke sound card PC bila rekan-rekan ingin bereksperimen menggunakan digital mode via PC sound card. Pada HBRADD1 ini juga di tambahkan 5 watt audio amplifer dengan loudspeaker yang besar melengkapi loudspeaker yang ada pada HBR4HF.

Spesifikasi :
*. ATMega8 as main controller for CW decoder and display
*. NE567 as tone decoder
*. ATTiny13 Iambic keyer and PTT control with buzzer tone
*. 16×2 character LCD for TX and RX CW encoder/decoder
*. 3-5 watt audio amplifer
*. 1 x 3.5 mm audio jack for Iambic keying input
*. 1 x 3.5 mm audio jack for sound card interface input
*. 1 x 3.5 mm audio jack for sound card interface output
*. 2 x 600 ohm audio transformer sound card in and out audio
*. 5 watt speaker
*. Dimension 200(w) x 60 (h) x 100 (deep) mm

 

 

Hambuilder Team

HBR4HF – Hambuilder 4 Band HF Transceiver

HBR4HF specification

  • Heterodyne 10MHz Xtal filter exciter based on Hambuilder BritX exciter
  • 300-25000Hz audio band pass active filter using NE5532
  • 4 Band coverage (80m, 40m, 30m, 20m) with 3 selector LPF BPF
  • 20-35 watt RF power output,
  • 2x IRF 530 Final RF amplifier
  • SSB modulation
  • 16×2 char LCD
  • Si5351 VFO and BFO synthezyzer based on RTC01C controller

 

 

 

Regards

 

BritX and HBRF01 listed on eBay

Dear All friend,

The exciter BritX and Combo BPF/LPF board listed on eBay, its your time to build your full system transceiver using hambuilder transceiver module

BritX exciter board on eBay

 

HBRF01 listed on eBay

 

Regards

Hambuilder HF modular transceiver (RTC03+BRITX+BPF/LPF+HBRPA20)

 

 

 

Transceiver Block

Hambuilder HF transceiver spec:

  • RTC03
    • 3.2 Inch TFT LCD
    • Si5351 synthesizer
    • VFO-BFO out
    • SSB/CW/AM/FM mode
    • 8 Band Control

 

  • BRITX-01
    • BITX based heterodyne transceiver
    • 10MHz IF
    • 300-3000 Hz audio band pass filter
    • Smeter
    • Agc

 

  • HBRF-01
    • 5 band BPF off 8 band control
    • 5 band LPF off 8 band control
    • 160m
    • 80m
    • 40m
    • 30m + 20m
    •  17m + 15m + 10m
    • IMG_20170717_095323

 

  • HBRPA20
    • 1x IRF510 driver
    • 4x IRF510 final
    • 0.5-1 watt input
    • 13.8V operation
      Test result with LPF and 50 ohm dummy load

      • 160m…….. 17 Watt
      • 80m ……… 15 Watt
      • 40m………. 19 Watt
      • 30m………. 16 Watt
      • 20m………. 22 Watt
      • 17m……….. 17 Watt
      • 15m……….. 18 Watt
      • 10m……….. 10 Watt

 

HBR TRX Connection 5

Hambuilder Team

RTC03 + BritX (All Band SSB) + Wide BPF/LPF + RF-PA20(4xIRF510), Its almost complete now

I got many request from friend to listed full set of transceiver module on ebay. Its already pushing me hard to realize it as soon as possible. Really hard to worked with my “pneumonia” problem since last year, I didn’t smoke but its happen to me because the air conditioner bacteria. I have a full day jobs as a SAP consultant. Yes, It mean lot to do but I tried to build it as soon as possible, and this post is the progress.

Nothing new design of this BritX, its just some variance of famous BITX, I just added and replace some component exist on local, plus an audio band pass filter to make better audio in receiving. Everything is generic design but, my big job is to make all module work together in all band, its not easy, at least for me. After some PCB design, prototype testing, testing and again testing. Its worked now.

The transmit test result with 13.8v supply with dummy load after lowpass filter:
1. 160m 16.3Watt
2. 80m  17.7Watt
3. 40m  25Watt
4. 30m  20Watt
5. 20m 24Watt
6. 17m  22Watt
7. 15m 19.3Watt
8 10m 8.3Watt

Yes power out is getting low on the 10m band but its common for IRF510 mosfet. Using RD16HHF or RD70HHF will be a better with flat RF output on all band. For my friend thats already bought my RTC03 on eBay, please be patient this complete set will be list there soon.

RTC03 + BRITX + BPF/LPF + PA20

All Band BPF/LPF

All Band BPF/LPF

Regards
Dian Kurniawan

HBR602 – Hambuilder Exciter using NE602 board

Salah satu exciter dari Hambuilder adalah HBR602. Exciter ini menggunakan IC Double Balance Mixer NE/SA602 yang sudah banyak dipakai dan menjadi standard homebrewer dalam merakit transceivernya. Walaupun buat saya NE602 bukanlah chip mixer pertama yang digunakan namun keunggulan serta kemudahan penggunaan mixer ini tetap menjadikannya favorit dalam membangun transceiver.  Sebuah mic amplifier dan ALC diharapkan dapat membantu mendorong keluaran dari exciter ini. Pada sisi pancaran, keluaran dari mixer akhir di perkuat dengan 2 tingkat TR MPSH10 untuk menggerakkan TR2N2218 pada final. Sehingga diharapkan dapat mengeluarkan paling tidak 1Watt level out. Pada sisi penerimaan sebelum penguat audio akhir di tambahkan audio band pass filter SSB (300-3000Hz) sehingga keluaran dari speaker sudah cukup baik untuk mengeluarkan demodulaasi SSB. Detail componen dari HBR602 adalah sebagai berikut:
*. IC TA2011S as mic amplifier and ALC
*. Mixer IC NE602/SA602
*. 4x Ladder filter 9MHz
*. IC LM741 first audio amplifier
*. IC NE5532 Audio Band Pass Filter
*. LM386 Audio Amplifer
*. TR MPSH10 first and second RF Amp
*. TR 2N2218 final exciter RF Amp

berikut adalah layout PCB untuk exciter ini

Hambuilder Team