Sdaz

filtri rf modulari

Tipo QRP:

• dimensioni: 40x15x15 mm
• passo connettore: 4x14 pin 2,54
• potenza max: 25W

Tipo normale:

• dimensioni: 55x20x20 mm
• passo connettore: 4x20 pin 2,54
• potenza max: 50W

Nuclei:

Nucleo	AL
T37-2	AL=4
T50-2	AL=4.9
T68-2	AL=5.7
T37-6	AL=3
T50-6	AL=4

uH=(AL*(spire^2))/1000

spire=sqrt((uH*1000)/AL)

Passa Basso

CWAZ-style LPF (pF/uH):

Freq	C1/C7	L2/L6	C3/C5	L4/C4
1000	2986	9,377	4556	8,516/680
1500	1990	6,25	3037	5,44/453
500	5972	18,754	9112	17/1360

SVC Chebyshev LPF:

Freq	C1/C7	L2/L6	C3/C5	L4
1000	1476	8	3960	10,1
500	2592	16	7920	20,2
1800	820	4,442	2200	5,608
1500	984	5,33	2640	6,73

rif:

• http://toroids.info/T50-2.php
• http://www.gqrp.com/Datasheet_W3NQN.pdf (CWAZ)
• http://www.gqrp.com/harmonic_filters.pdf (normale LPF)
• http://www.amidoncorp.com/product_images/specifications/1-03.pdf

Passa Banda

Freq	Tipo	Zin	Zout	C1/C3	L1/L3	C2	L2
1,8-4mhz				150pf	23uH	330	10,7uH
4-8mhz				100pf	8uH	390	2,1uH
8-16mhz				47pf	4uH	180	1,1uH
16-30mhz				27pf	2uH	100	0,53uH
115 - 495khz	Butterworth	50	50	8377 pF	53.12 uH	10624 pF	41.88 uH
0,5 - 1,6mhz	Butterworth	50	50	2894 pF	7.94 uH	1588 pF	14.47 uH
4 - 10mhz	Butterworth	50	50	530.52 pF	0.9744 uH (18T@T37-6)	194.88 pF	2.65 uH (30T@T37-6)
10 - 20mhz	Butterworth	50	50	318.31 pF	0.3537 uH (11T@T37-6)	70.74 pF	1.59 uH (23.0T@T37-6)

rif:

• http://www.wb5rvz.com/sdr/hf_bpf/Softrock_PlugIn_HF-BPF_Option_1_Schematic1_12_2009.pdf
• http://www.wa4dsy.net/filter/filterdesign.html