Products > Bandpass Filter Application > High Attenuation Standard Helical Filter for Ham Radio User
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High Attenuation Standard Helical Filter for Ham Radio User


Ham Radio & Amateur Radio ( Open Frequency Spec Support) with high Attenuation level

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Temwell Ham Radio Standard Bandpass Filter has great response from all

over the world. In order to make customers having better filters, we upgrade

all Ham Radio standard filter in to higher level as 4 Pole bandpass Filter,

which provide 10 dB better Attenuation value from current items in list.

All 6 standard frequency spec, Fo=146MHz, 232.5MHz, 435MHz, 915MHz,
1270MHz,1282.5MHz are all available. You should see what great they

are as bellow spec sheet.

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Surely, these list will be ready in our online shop. You could order to

have a trail without delay. Welcome to contact us for more detail discussion.


A. Frequency: 146MHz Spec (Freq / BW) Size (LxWxH)   Accepted Type
TF69709B-146M 146MHz / 5MHz TF (30.5x7.6x12.5)

Pin Type / Module Type

TF69281A-146M

146MHz / 8MHz

TF (30.5x7.6x12.5)

Pin Type / Module Type


B. Frequency: 223.5MHz Spec (Freq / BW)

Size (LxWxH)

 Accepted Type

TF6434B-223.5M 223.5MHz / 8MHz TF (30.5x7.6x12.5) Pin Type / Module Type

C. Frequency: 435MHz Spec (Freq / BW) Size (LxWxH)  Accepted Type
TF69410B-435M 435MHz / 31MHz TF (30.5x7.6x12.5) Pin Type / Module Type
TF69295B-435M 435MHz / 34MHz TF (30.5x7.6x12.5) Pin Type / Module Type
TFW4630B-435M 435MHz / 26MHz TFW (22.4x5.6x8.6) Pin Type / Module Type

D. Frequency: 915MHz Spec (Freq / BW) Size (LxWxH)  Accepted Type
TF69748B-915M 915MHz / 26MHz TF (30.5x7.6x12.5) Pin Type / Module Type
TF69550E-915M 915MHz / 27MHz TF (30.5x7.6x12.5) Pin Type / Module Type
TFW4553B-915M 915MHz / 29MHz TFW (22.4x5.6x8.6) Pin Type / Module Type
TFW4684B-915M 915MHz / 25MHz TFW (22.4x5.6x8.6) Pin Type / Module Type

E. Frequency: 1270MHz Spec (Freq / BW) Size (LxWxH)  AcceptedType
TF69810B-1270M 1270MHz / 60MHz TF (30.5x7.6x12.5) Pin Type / Module Type
TFW4759B-1270M 1270MHz / 65MHz TFW (22.4x5.6x8.6) Pin Type / Module Type

F. Frequency: 1282.5MHz Spec (Freq / BW) Size (LxWxH)  Accepted Type
TF64753D-1282.5M 1282.5MHz / 25MHz TF (30.5x7.6x12.5) Pin Type / Module Type
TF69751B-1282.5M 1282.5MHz / 27MHz TF (30.5x7.6x12.5) Pin Type / Module Type
TFW4575B-1282.5M 1282.5MHz / 29MHz TFW (22.4x5.6x8.6) Pin Type / Module Type

 All of the above items are available in stock now. 72 Hour Delivery products.

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The Expert of the RF Band Pass Filter design& manufacturer, RF Diplexer &Duplexer, RF 50 ohm& 75ohm Filter, RF Tunable Filter


Temwell Corporation / Temstron Co., Ltd.

   8F-1,No.51, Sec.1,Min Sheng E. Rd.,Taipei, Taiwan    Tel:886-2-25652500 ( 7 Line )    Fax: 886-2-25515250  /  886-2-25652287    

E-Mail : sales@temwell.com.tw

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