Ham Radio Downloads

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

     Filter, diplexer, duplexer and Bias-T's    

 

 

 

Surplus filter from NEC retuned from 5731MHz to 5761MHz

 

Sept. 9th
2020

 

How well works a K&L 1990 MHz lowpass filter in the 13cm band ?

 

Aug. 20th
2020

 

A surplus 4 pole S-band filter modified and retuned to 2320 MHz

 

Aug. 19th
2020

 

A 739MHz bandpass filter for the IF of a QO-100 receiver

 

Aug. 18th
2020

 

A 4 pole bandpass filter for the 70cm band recycled from a UHF duplexer

 

Aug. 15th
2020

 

A surplus 4 pole S-band filter modified and retuned to 2400 MHz

 

Aug. 15th
2020

 

Diplexer for 23cm and 13cm band

 

Feb. 3rd
2020

 

1296 MHz lowpass filter with harmonic notches and integrated reflectometer

 

Feb. 2nd
2020

 

Commercial 2300-2400 MHz band-pass filter retuned for QO-100 uplink at 2400-2410 MHz

 

Jan. 30th
2020

 

120MHz high pass filter K&L 6LH41-120-2000-0-0

 

Nov. 18th
2019

 

4.3-5.0 GHz bandpass filter from surplus BOSCH filter unit

 

Nov. 17th
2019

 

Using a Kathrein 791 145 Dual-Band Combiner as a UHF/SHF Diplexer

 

Sept. 27th
2019

 

MITEQ FTL-104052 BPF retuned from 2240 MHz to 2350 MHz

 

Aug. 5th
2019

 

Homebrew 2.4 GHz 5 pole BPF for QO-10

 

Aug. 4th
2019

 

Homebrew 2.4 GHz 4 pole BPF for QO-10

 

Aug. 4th
2019

 

Bandpassfilter RTX COH2438.75 for 2400 MHz uplink to QO-100

 

Mar. 31st
2019

 

Be careful with cheap 88-108 MHz band reject filters

 

Jan. 30th 2019

 

Analysis of the 10 MHz Inserter / Extractor from Global Communicatons

 

Jan. 5th 2019

 

What's inside the 5.5 GHz high-pass filter HPF5500M 

 

Jan. 4th 2019

 

Analysis of a chinese broadband Bias-T 10 MHz to 6 GHz

 

Sept. 1st
2018

 

Description of the LTE Blocking Filter 67510

 

April 23rd
2018

 

Retuning a Microdyne Tubular BPF to 2200-2300 MHz

 

Feb. 25th
2018

 

Description of Huber + Suhner Lowpass Filter 2500 MHz

 

Jan. 29th
2018

 

Analysis of the 5.4 GHz Diplex-Filter M00090-01-06 from Elettronica Roma

 

Jan. 26th
2018

 

Description of the Fixed Bandpass Filter 612608-001 from Watkins Johnson

 

Dec. 20th
2017

 

Description of K&L Bandpass Filter 5B120-2450/180-O/OP

 

Nov. 24th
2017

 

Commercial L-Band dielectrical bandpass-filter from Lorch

 

Nov.21st
2017

 

Description of Huber + Suhner Lowpass Filter 2600 MHz

 

July 18th
2017

 

Description of K&L Lowpass Filter 13IL10-1920/X2200-N/N

 

July 18th
2017

 

Description of K&L Highpass Filter 11SH10-2400/U13000-N/N

 

July 18th
2017

 

Description of the tunable bandpass filter Telonics TTA-1500-3-5EE

 

Jan 10th
2015

Please note that I retain the copyrights on all articles. If you want to make use of them other than for your personal purpose please send me a request to


Go to Start Page of this Homepage