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


Ham Radio & Amateur Radio ( Open Frequency Spec Support)

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  Temwell RF BandPass Helical Filter released standard series for open

  frequency  area users, such as, Ham radio, Amateur radio, Free User, etc.

  Referring to national regulation of United States,  Temwell support 6

  standard frequency spec, Fo=146MHz, 232.5MHz, 435MHz, 915MHz,

 1270MHz,1282.5MHz, in many different kind of size and  applications, 

  EX: Pin type and Module type with different connector type.

 We are also desired to build new standard series for Ham radio user in

  European area, Australia area, South Africa area, South America area, etc.  

 Welcome to contact us for more detail discussion.


A. Frequency: 146MHz Spec (Freq / BW) Size (LxWxH)   Accepted Type
TD67281A-146M 146MHz / 8MHz TD (15.2x7.6x12.5)

Pin Type / Module Type

TT67709B-146M

146MHz / 5MHz

TT (22.8x7.6x12.5)

Pin Type / Module Type


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

Size (LxWxH)

 Accepted Type

TD6734B-223.5M 223.5MHz / 8MHz TD (15.2x7.6x12.5) Pin Type / Module Type
TT6762B-223.5M

223.5MHz / 9MHz

TT (22.8x7.6x12.5)

Pin Type / Module Type

C. Frequency: 435MHz Spec (Freq / BW) Size (LxWxH)  Accepted Type
TD67410B-435M 435MHz / 31MHz TD (15.2x7.6x12.5) Pin Type / Module Type
TT67295B-435M 435MHz / 35MHz TT (22.8x7.6x12.5) Pin Type / Module Type
TDW2630B-435M 435MHz / 33MHz TDW (11.2x5.6x8.6) Pin Type / Module Type
TTW3630B-435M 435MHz / 33MHz TTW (16.8x5.6x8.6) Pin Type / Module Type

D. Frequency: 915MHz Spec (Freq / BW) Size (LxWxH)  Accepted Type
TD67748B-915M 915MHz / 26MHz TD (15.2x7.6x12.5) Pin Type / Module Type
TT67550E-915M 915MHz / 27MHz TT (22.8x7.6x12.5) Pin Type / Module Type
TDW2553B-915M 915MHz / 29MHz TDW (11.2x5.6x8.6) Pin Type / Module Type
TTW3684B-915M 915MHz / 25MHz TTW (16.8x5.6x8.6) Pin Type / Module Type

E. Frequency: 1270MHz Spec (Freq / BW) Size (LxWxH)  AcceptedType
TT67810B-1270M 1270MHz / 60MHz TT (22.8x7.6x12.5) Pin Type / Module Type
TTW3759B-1275M 1270MHz / 65MHz TTW (16.8x5.6x8.6) Pin Type / Module Type

F. Frequency: 1282.5MHz Spec (Freq / BW) Size (LxWxH)  Accepted Type
TD67751B-1282.5M 1282.5MHz / 27MHz TD (15.2x7.6x12.5) Pin Type / Module Type
TT67426D-1282.5M 1282.5MHz / 25MHz TT (22.8x7.6x12.5) Pin Type / Module Type
TDW2575B-1282.5M 1282.5MHz / 29MHz TDW (11.2x5.6x8.6) Pin Type / Module Type
TTW3554B-1282.5M 1282.5MHz / 24MHz TTW (16.8x5.6x8.6) 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.

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