Categories

Archives

A sample text widget

Etiam pulvinar consectetur dolor sed malesuada. Ut convallis euismod dolor nec pretium. Nunc ut tristique massa.

Nam sodales mi vitae dolor ullamcorper et vulputate enim accumsan. Morbi orci magna, tincidunt vitae molestie nec, molestie at mi. Nulla nulla lorem, suscipit in posuere in, interdum non magna.

เครื่องเจาะดิน

http://www.jojothai.com/index.php?route=product/category&path=63

 

http://www.kasetporpeang.com/forums/index.php?PHPSESSID=uturnt9usme09e53cp75o9h0o5&topic=60013.msg1332132#msg1332132

 

แบบไม่ใช้เครื่องยนต์

http://www.in.th/Yqfxzb

ติดตั้งกราวด์

Antenna Tunner

http://www.hamsiam.com/smf/index.php?topic=201726.0

http://www.153rt.com/index.php/topic,5199.html

 

สถานีวิทยุสมัครเล่นที่น่าสนใจ

http://www.in.th/Sx9TRD

Manpack Homebrew

http://www.in.th/BvRbwg http://www.in.th/mPIioJ

attenuator

http://pioneer.netserv.chula.ac.th/~ntinnawa/ardf/attn.html

MFJ259 ช็อต

[…]

Coaxial Resonators

Cavity filters, or more correctly coaxial resonators, are the cornerstone of good repeater performance. However, there appears to be some sort of black magic in the way they work or how they achieve their performance.

A coaxial resonator is much like a quarter wave stub but open-ended. It can also be likened to a quarter […]

ทำ Filer จากสาย Heliax

This filter is designed to remove interference caused by pager transmitters operating between 148MHz and 150MHz.

They are in effect cavity resonators constructed from LCF158 coaxial cable.

Specifications for this cable can be found here. This is some serious coaxial cable. It has a 50mm outer diameter and very low losses (0.82db/100m @ 150MHz). Both […]

ซ่อม MFJ-269

http://hamsiam.in.th/index.php?topic=7503.0

Page 1 of 212