= HF8V = / = SP8WJT = / = SP0106RZ =
HF-1740
PROJECT: HF-1740
DESCRIPTION: VHF RX based on tuner DIORA T9015
TYPE: T9015
BRAND: DIORA
STATUS: u
PROJECT START DATE: 2007
LOCALISATION: PM
DOCUMENTATION: TM
PCB: TPD57040
DIMENSIONS:
This is main board of DIORA tuner T9015. Currently it is part of HF-2282 VHF Communication Receiver. Sensivity is quite good as frontend is made on good mosfets, decently screened and multipoint tuned. It works better than many chinese cheap radiotelephones from Aliexpress.
This is deeply modified circuit, 2IFs are used: 1IF 10.7 MHz and AM receiver was converted into 2IF 465 kHz. Whole VHF aviation band is covered. For 10.7MHz narrow quartz filters were used.
Sources:
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