Last update: 18-October-2001

Fx-GNOME An extreamly small and powersaving frequency counter. It can perfectly be used as a frequency display unit for portable radio transceiver.

                                                 Published in the German HAM Radio Magazine CQ-DL 11/2001

Beschreibung/Description:

Extended Summary of the article of the HAM-Radio magazine CQ-DL 11/2001

Erweiterter Artikel aus dem HAM-Radio Magazin CQ-DL 11/2001 

Spezifikation/Specification:

Input frequency :	w/o prescaller	180 MHz	sens. 0.3 .... 5 Vpp
	w/ prescaller	1.8 GHz	sens. 0.4 .... 1 Vpp
Gate:	1s	0.1s	(0.01s)	(0.01 s may work!)
Precision counter:	1 Hz	10 Hz	100 Hz	no prec. < 190 MHz
	2 Hz	20 Hz	200 Hz	pre. 1/2 < 410 MHz
	4 Hz	40 Hz	400 Hz	pre. 1/4 < 830 MHz
	8 Hz	80 Hz	800 Hz	pre. 1/8 < 1.8  GHz
	x Hz	10*x Hz	100*x Hz	pre. 1/x
Precision LCD :	11 dig.+dp *			e.g. 10368.000000
		10 dig.+dp *		e.g. 10368.00000
			9 dig.+dp *	e.g. 10368.0000
Current :	< 15mA ... ... 35mA		dep. on frequency and TCXO current	without backlight
Size:		l	w	h
Board		65 mm	45 mm	15 mm
LCD - EA7123	total	30 mm	45 mm
	visible	15 mm	35 mm
LCD - TTR6030	total	28 mm	22 mm	5 mm
	visible	7 mm	20 mm
LCD - universal	total	88 mm	55 mm	25 mm
	visible	60 mm	18 mm
* dp not for TTR6030

Schematic (Rev. 3)	Part 1	Part 2	Part 3
Assembly drawing (Rev. 3)	Top	Bottom
Pictures of the board	Top		Bottom
Display example	Display1 Display2	Display3 Display4

 

Download PC maintain tool GNOMESETUP (zipped 1.524 MB)

Download AT89C4051 software GNOME10A.bin for EA7132 (4 KB)

Download AT89C4051 software GNOMEC10A.bin for TTR6040 (4 KB)

I2C LCD Datasheets

EA7123          (760KB, mixed language!) (Datasheet by Electronic Assembly)

TTR6030       (156KB)  (Datasheet by Conrad Electronic)

Universal LCD I2C/V24 adapter board

 

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