Ham Radio DX Youtube

Uncover the Secret Behind Ham Radio Duplexers

Today I show what a duplexer does on a repeater, how they are tuned and how you can eliminate interference with other types of filters.

Learn more about repeaters 👉

🎥 Watch more recent videos here:

0:00 What is a duplexer/cavity filter
1:46 Vari-Notch filters
2:33 Bandpass filters

Some links are affiliate and I may receive a small commission on sales

► GET 5% OFF Messi & Paoloni Coax – Use Coupon: VK7HH

► $15 OFF at Radioddity –

► Gear I Recommend:

Support Ham Radio DX:
► Patreon:
► YouTube Memberships:
► PayPal Tip Jar:
► Buy Ham Radio on Amazon & eBay:
► Merch:

Items in My Shack:

Contact Me:
► Website:
► Facebook:
► Instagram:
► Twitter:
► Discord:
► Email: (note due to high level of email – if you have a question the best way to contact is via the comments section of the video)
► Ham Mail: Hayden Honeywood – P.O Box 5071, Sandy Bay Tasmania 7005 Australia

#HamRadio #AmateurRadio #Duplexer

Epidemic Sound: