crwdns2915892:0crwdne2915892:0
Replace the antenna to receive better signal.
crwdns2942213:0crwdne2942213:0
-
-
At the top right, the insulated wire exposes the antenna.
-
-
-
-
Locate antenna connection.
-
Desolder wire to remove. An antenna of a new length can be soldered to the board for improved signal strength.
My son snapped off the antenna from our DX-8. Instead of desoldering, I spliced together the core wire from the shortened antenna to a section of one of the interior wires from an old iPhone USB cord and reception is now excellent.
What should the antenna be replaced with? Is there a specific length and material that should be used?
I was able to splice it with a short segment of antenna wire from a radio. It works well so far. The wire is similar to the product in the link below. You would cut off a short segment (10”) and reveal the wire and splice it with revealed wire from the antenna. I ran the wire out of the existing antenna hole in the back and taped it the monitor to make pulling it out less likely. The wire I used is stiff so it can be bent to ensure it stands up straight.
Length of antenna should be 1.2” exactly (but read on re shielded). Reasoning: 1/4 wavelength is ideal reception. 2.4 Ghz actually is 2.4-2.5 approved range from FCC for this unlicensed ISM band. Therefore best to use 2.45 midpoint. 2.45 Ghz full is 122mm or 4.8'“ . 1/4 wavelength is 1.2”. NOTE: what you can see of the antenna on the board and what goes into the antenna housing is actually shielded coax. I image there’s 1.2” of unshielded up in the antenna. So you need to make sure you have only 1.2” of unshielded. I left the coax soldered to the board, snipped to reasonable length, removed shielding, stripped the 24 gauge wire on the inside, measured how much of that was exposed , then cut a length of 24 gauge wire that, when added to what I exposed, would sum to 1.2”. Then stripped that one, soldered them together, tucked that inside, put back together, and tapped the antenna hole closed. Works better than new.
Finished. I didn’t resolder, I left the original base wire, as many might have noticed, the cable snapped. I spliced it in a half-assed way (later Iif its an issue I’ll go the solder route). for now its spliced with electrical tape just around the connection. I used https://www.amazon.com/gp/product/B0017L... in order to replace the built-in antenna. Getting much better signal strength than original.
-
To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
crwdns2935221:0crwdne2935221:0
crwdns2935227:0crwdne2935227:0
crwdns2915084:0crwdne2915084:0
USF Tampa, Team 6-4, Remmell Fall 2015 crwdns2935289:0USF Tampa, Team 6-4, Remmell Fall 2015crwdne2935289:0
USFT-REMMELL-F15S6G4
crwdns2931471:04crwdne2931471:0
crwdns2935297:03crwdne2935297:0
crwdns2944067:02crwdne2944067:0
That’s fine but what antenna did you purchase? My antennae wire is actually broken, started out with the plastic piece breaking then the cable snapped.
I would also like to know what replacement antenna you used.
This photo seems a little washed out.
Patty Remmell - crwdns2934203:0crwdne2934203:0