Hi,
Been looking around this forum searching for solutions to an engine noise problem. No joy yet.
I am hearing engine noise, especially while accelerating, that is making the radio almost unusable while the vehicle is in motion. Not so bad sitting idle, but it is still present.
Here is my setup:
Vehicle: 2000 Ford 350 7.3 Diesel Crew Cab Long Bed
CB: Cobra LX 29 BT (received as gift)
Antenna: Firestik 5 foot fiberglass tune-able tip
CB Power is straight to battery with inline fuse as suggested in these forums.
CB Ground, also with inline fuse, is to body under hood where a factory ground bolt was located, on that same bolt is a ground from somewhere else attached to it, but I do not know from where/what.
CB chassis ground using heavy stranded battery cable about 12 inches long to bolt on floor of cab.
Antenna is mounted center of crew cab roof using a dome mount.
Antenna cable does not run parallel to any power for long distance.
Antenna cable does not have a big loop of extra cable anywhere.
Antenna cable 2.5 feet extra was tied up loosely, not circular, in the middle of the bundle and tucked away neatly.
SWR from meter shows ~1.2
SWR on radio shows ~ 1.1
NB/ANL On or Off makes little difference while the vehicle is in motion.
NB/ANL On does help while vehicle is at idle.
RF Gain knob on CB, with engine on, turned up just past half way makes it better. Turning the knob up further makes it worse. Turning it down, makes it quieter on my end of course, but then I do not hear much coming in, relatively speaking. (not much action on CB around here to begin with)
Delta tune knob set in middle and no touchy.
A magnet mount antenna nets the same results, if not somewhat worse.
I have no other CB radio nor do I know anyone with a CB radio.
I have a Pro-97 scanner to verify transmit, but that does not prove much as I have to set the scanner close enough for me to hear it while keying up the CB.
I have driven to a parking lot across the road from a truck stop and asked about how my cb transmission sounds, as well as while driving on the highway nearby. So far the response is, "Sounds good"
Interestingly, the only response I get from drivers are those that are about 8 to 10 miles away. I ask them where they are and which direction and then I check the map for distance. On one occasion, the driver said he would keep talking to me and let me know where he was when I started to fade out. That was about 14 miles. I thought these distances were outstanding according to my limited knowledge of CB.
Any ideas? I'm all out.
Thank you,
e
Been looking around this forum searching for solutions to an engine noise problem. No joy yet.
I am hearing engine noise, especially while accelerating, that is making the radio almost unusable while the vehicle is in motion. Not so bad sitting idle, but it is still present.
Here is my setup:
Vehicle: 2000 Ford 350 7.3 Diesel Crew Cab Long Bed
CB: Cobra LX 29 BT (received as gift)
Antenna: Firestik 5 foot fiberglass tune-able tip
CB Power is straight to battery with inline fuse as suggested in these forums.
CB Ground, also with inline fuse, is to body under hood where a factory ground bolt was located, on that same bolt is a ground from somewhere else attached to it, but I do not know from where/what.
CB chassis ground using heavy stranded battery cable about 12 inches long to bolt on floor of cab.
Antenna is mounted center of crew cab roof using a dome mount.
Antenna cable does not run parallel to any power for long distance.
Antenna cable does not have a big loop of extra cable anywhere.
Antenna cable 2.5 feet extra was tied up loosely, not circular, in the middle of the bundle and tucked away neatly.
SWR from meter shows ~1.2
SWR on radio shows ~ 1.1
NB/ANL On or Off makes little difference while the vehicle is in motion.
NB/ANL On does help while vehicle is at idle.
RF Gain knob on CB, with engine on, turned up just past half way makes it better. Turning the knob up further makes it worse. Turning it down, makes it quieter on my end of course, but then I do not hear much coming in, relatively speaking. (not much action on CB around here to begin with)
Delta tune knob set in middle and no touchy.
A magnet mount antenna nets the same results, if not somewhat worse.
I have no other CB radio nor do I know anyone with a CB radio.
I have a Pro-97 scanner to verify transmit, but that does not prove much as I have to set the scanner close enough for me to hear it while keying up the CB.
I have driven to a parking lot across the road from a truck stop and asked about how my cb transmission sounds, as well as while driving on the highway nearby. So far the response is, "Sounds good"
Interestingly, the only response I get from drivers are those that are about 8 to 10 miles away. I ask them where they are and which direction and then I check the map for distance. On one occasion, the driver said he would keep talking to me and let me know where he was when I started to fade out. That was about 14 miles. I thought these distances were outstanding according to my limited knowledge of CB.
Any ideas? I'm all out.
Thank you,
e