Comet CTC-50M CTC50M CTC 50M CTC/50M Original Window Feed-Thru Jumper W/UHF Female (SO-239) Connectors at Each End

If you cant go to the next level of having coax through walls to elevate your antenna, then this is the trick. Been using it about a month and really vastly improved transmit and receive on my Baofeng hand-held. Using now on my Kenwood TM-D710G and find it does well.

Able to close window on cable and not lose heat. Very low loss of power. Small db loss when inserted.

Made in Japan...nuf said.

Seemed a little high but decided to give it a try. Worked well in my application. Window is closed and locked. May get another.

When I ordered this, I could find no mention that these feed-through jumpers worked with newer horizontal sliding vinyl double-pane windows. Being very energy efficient, I was concerned our 3 year old windows would seal too tightly for this jumper to work. But I can now tell you, it worked for our windows and very well. I purchased two of these jumpers, one for HF and the other for 2M/440. The cables are one on top of the other and Ive seen no interference between the two signals. This jumper solved my problem of not wanting to drill through our stucco walls. Now I can run both radios (HF & Dual-Band) with the window tightly closed.

this product is exactly what i needed to feed a radio cable through a window while maintaining a functional weather seal

Ive had my Comet Window Feed-Thru Jumper in my closed window for at least a year; maybe longer. It still works like new. Its a simple, but very useful product.

Next time. Im just going to buy SO239 to SO239 bulk head fittings and drill a hole thought a piece of wood.

Meets all expectations

Great product if you dont want to drill holes in your wall.+