SID Monitor BandPass Filter
	Tuning Resistors (from Maxim 275 design notes)
	R2 = 2x10^9 / Frequency			Where:
	R4= R2 - 5000			Q = 50
	R3 = (Q) (2x10^9) (Rx)/ (F0*Ry)			Rx/Ry = 1/25 ( for 5k< R2,R3 < 4M)
	R1 = R3 / BP_gain			BP_gain = 1 (for R1=R3)
VLF Stations	ID	Freq KHz	R2	R4	R3	R1
Cutler, ME	NAA	24	83333	78333	166667	166667
Jim Creek,WA	NLK	24.8	80645	75645	161290	161290
Lualuelei,HI	NPM	21.4	93458	88458	186916	186916
La Moure, ND	NML	25.2	79365	74365	158730	158730
Aquada, Puerto Rico	NAU	40.75	49080	44080	98160	98160
South Pole	VLF	20	100000	95000	200000	200000
NW Cape	NWC	19.8	101010	96010	202020	202020
Changde	3SA	20.6	97087	92087	194175	194175
Datonge	3SB	10.6	188679	183679	377358	377358
Rhauderfehn	DHO	23.4	85470	80470	170940	170940
Rosnay	HWU	20.9	95694	90694	191388	191388
St. Assie	FTA	16.8	119048	114048	238095	238095
LeBlanc	HWV	21.75	91954	86954	183908	183908
Keflavik	NRK	37.5	53333	48333	106667	106667
Katabomman	VTX3	18.2	109890	104890	219780	219780
Tavolara	ICV	20.27	98668	93668	197336	197336
Sicily	NSC	45.9	43573	38573	87146	87146
Ebino	JJI	22.2	90090	85090	180180	180180
Kolsas	JXN	16.4	121951	116951	243902	243902
Arkhanghelsk	UGE	19.7	101523	96523	203046	203046
Batumi	UVA	14.6	136986	131986	273973	273973
Kaliningrad	UGKZ	30.3	66007	61007	132013	132013
Matotchkinchar	UFQE	18.1	110497	105497	220994	220994
Vladivostock	UIK	15	133333	128333	266667	266667
Bafa	TBB	26.7	74906	69906	149813	149813
Anthorn	GBZ	19.6	102041	97041	204082	204082
Anthorn	GQD	22.1	90498	85498	180995	180995
London	GYA	21.37	93589	88589	187178	187178