Garage Door Opener RFI Kit

Bullet Hybrid (2:1) HF Balun + 1:1 Choke, 1.8-61 MHz, 500/1500 Watts, OCF, Loop, Folded Dipole Antennas

SKU BULLET-2-1-500EB
$119.95
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Bullet Hybrid (2:1) HF Balun + 1:1 Choke, 1.8-61 MHz, 500/1500 Watts, OCF, Loop, Folded Dipole Antennas
Product Details
Country/Region of Manufacture: USA
Type: NEW
Input ohms/Output ohms: 50 in, 100 out
Frequency Range < 2:1 SWR (MHz): 1.8-100
PEP Power Rating (watts): 500
Input Connector: SO239
Transformer Topology: Braodband Ferrite
Hardware Type: Stainless Steel
Weight (pounds): 2
Antenna Compatability: Loop

The Bullet-2-1-500EB (500 watts PEP) or the SBULLET-2-1-1500EB (1500 watts PEP) are both multi-core, 2:1 (50 ohm to 100 ohm) baluns plus a 1:1 feed line choke in a single compact (looks like a bullet) enclosure that is lightweight and easy to transport for your fixed/portable.

Very useful for single band horizontal or vertical loop antenna systems. Halyard hoist at top of balun for convenient attachment point. Input is via SO-239 UHF coax connector and output with side eye bolt output.

For multi-band loop antennas consider the Bullet-4-1-500EB or SBULLET-4-1-1500EB

Remember we over engineer our products, to out perform our competition - just compare the weight and frequency range of our baluns to theirs and you will know we put much more into our products so you don't have to worry about failure at a critical moment.


Christmas lights or yard lights with switching DC power supplies are often the RFI source and a clamp on ferrite bead on the AC AND the DC side feeding the lights is needed to help suppress the switching power supply RFI noise.  Suitable snap on beads are FSB31-1/2 for the 1-250 MHz range.

We have also had reported wireless HDTV boxes, and FOSCAM and AMCREST security camera systems causing RFI to garage door remote openers. Use our Garage Door Opener RFI kit to suppress the interference to the opener (VICTIM) – you need one kit for each opener.  Maximize the distance from the camera to the openers may also help.  Additionally shield cable to the garage door sensors may be needed depending on severity of the camera RFI.

Obvious Tech Note: make sure your remote batteries have enough energy to activate the GDO or the signal they transmit may not be large enough to over ride the RFI signal, but a fresh battery may be able to overcome the weak RFI source and allow the GDO to operate correctly.