100W SSB/CW HBR4HFS(X) new board (BX series)

Shipping cost in this pandemic getting weird, we need to reduce the weight of our transceiver. We then re-built/re-engineering our transceiver to make it more smaller, compact, light weight but without losing capability or feature. This latest version of HBR4HF will also have some enhancement :
*. more power out with optional heat sink depend on power for HBR4HFX version. 100W on 80m, 80W on 40m, 50W on 30m, 30W on 20m
*. better component layout
*. better RF blocking to VCC
*. better cabling layout
*. firmware update for optional straight or iambic key for CW mode

 

• eBay link  https://www.ebay.com/itm/174537452346
• tokopedia link  https://www.tokopedia.com/jalapindai-store/100w-ssb-cw-hf-transceiver-80m-40m-30m-20m-hbr4hfx

Hambuilder Team

Hambuilder Survey

 

RTC-22A, crystal replacement / synthesizer for ICOM IC22A

RTC-22A build based on RTC01C. This new firmware will produce 2 frequency out
*. TX oscillator (17.500.000 –  18.750.000) will multiply by 8 times to produce 140.000.000 Hz – 150.000.000)
*. RX oscillator (14.417.160 –  15.528.333) will multiply by 9 times then add IF (10.245 MHz) or
(14.316.111 –  15.427.222) will multiply by 9 times then add IF (11.155 MHz)

If you have an old school transceiver with xtal based frequency (channel) you can add this controller to operate it with vfo dial style.

RTC-22A

IC22A, block diagram

By using this controller IC22A could be operate not only in simplex but also in duplex +600, duplex -600 or ini split mode (VFO A on RX, VFO B on TX).

Hambuilder sales channel link RTC022

HBR4CW Prototype

QRP CW transceiver portable yang simple dan mudah dibawa-bawa, mungkin untuk outdoor activity, hiking, camping … atau glamping.

 

 

Semoga bisa segera masuk ke line produksi.

Hambuilder Team

HBR4CW 4 Band CW QRP transceiver

Beberapa rekan baik dari dalam dan luar negeri menyatakan ketertarikan akan perangkat QRP yang beroperasi hanya pada mode CW. Mereka terarik dengan design yang simple, kompak dan hemat daya. Setelah melakukan riset perbandingan dan pertimbangan ketersedian komponen, proses perakitan dan sebagainya, Hambuilder mencoba mendisain jawaban atas kebutuhan tersebut dengan spesifikasi sbb:

*. 16×2 LCD Display with auto-off back light
*. Atmel Microntroller
*. Si5351 synthesizer
*. built-in iambic firmware with WPM setting
*. optional menu for iambic or direct key
*. No mechanical relay used

Operation Band :
*. 40m
*. 20m
*. 15m
*. 10m

RX :
*. SA602 sebagai mixer dan demodulator dengan pertimbangan built in gain besar
*. Xtal ladder filter yang di desain dengan bandwidth sempit sesuai kebutuhan CW
*. opamp sebagai audio CW filter
*. RX gain setting, mungkin ada penambahan front end gain amplifier (MMIC?)
*. audio agc

TX:
*. 5W output
*. IRF510 as final transistor
*. 5 pole LPF

Sebetulnya tidak ada teknologi RF baru untuk desain ini, fokus pada simplikasi dan daya, plus harga.
Ada kemungkinan sekaligus battery pack. Atau di coba accessories lain sepeti SWR+ATU, QRP antenna? kita lihat perkembangan nantinya seperti apa, mudah2an peminat di lokal juga semakin banyak. Semoga bisa segera direalisasi

Hambuilder Team