Reply With Quoteyou do lose something at every joint
whether that impacts your particular usage is another matter
is there a screw fitting at the antenna end as well as at the radio end, or is it soldered?
TopicToaster
SubscriberAny advice on aerial cable joiners?
As with the majority of the wiring on my vehicle which I've been undoing (you can read about it >>here<< ), the aerial cable was not spared the installer's penchant of 'bundle it up and stuff it somewhere where the owner won't find it'.
Do such joiners reduce transmission or signal quality?
Currently the aerial cable on mine runs from the aerial, thru the grille, around the firewall (via a stonkin' big bundle of mess), thru firewall and into the radio.
Having the ability to completely remove the front grill of the defender would be good, but not sure if I put a joiner in somewhere, or join and reattach at the radio end or aerial end.
-Mitch
'El Burro' 2012 Defender 90.
SysAdmin (Owner)
you do lose something at every joint
whether that impacts your particular usage is another matter
is there a screw fitting at the antenna end as well as at the radio end, or is it soldered?
2007 Discovery 3 SE7 TDV6 2.7
2012 SZ Territory TX 2.7 TDCi
"Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
"If you don't have a sense of humour, you probably don't have any sense at all!" -- a wise observation by someone else
'If everyone colludes in believing that war is the norm, nobody will recognize the imperative of peace." -- Anne Deveson
“What you leave behind is not what is engraved in stone monuments, but what is woven into the lives of others.” - Pericles
"We can ignore reality, but we cannot ignore the consequences of ignoring reality.” – Ayn Rand
"The happiness of your life depends upon the quality of your thoughts." Marcus Aurelius
Moderator
You need a lossless connector. I have a link for them somewhere
The Phantom - Oslo Blue 2001 Td5 SE.
Half dead but will live again!
Nina - Chawton White 2003 Td5 S
Slowly being improved
Originally Posted by Judo
TopicToaster
SubscriberHaven't actually got that far to know what's on the aerial end. It's a GME aerial, unsure of db or whatever measure they use for these things.
-Mitch
'El Burro' 2012 Defender 90.
ChatterBox
SupporterCan't you unsweat the cable from the connector at the back of the radio and pull it out? (unscrew the connector first.) Tape a pull cord onto it if you want to pull it back through later. I'm no expert, but I think a join will bugger up the shielding which is vital to good function of the cable, and therefore the radio.
Don.
TopicToaster
SubscriberBeing a shielded cable was my biggest concern. If the quality would suffer incredibly, then I'd cut the cable back down to the right length once it's routed in a way which allows me to remove the grille more easily
-Mitch
'El Burro' 2012 Defender 90.
SysAdmin (Owner)
Coaxial Connectors & Adaptors
pick your poison...
UHF CB Australia - Coax Connectors Made Easy
not much to it...
2007 Discovery 3 SE7 TDV6 2.7
2012 SZ Territory TX 2.7 TDCi
"Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
"If you don't have a sense of humour, you probably don't have any sense at all!" -- a wise observation by someone else
'If everyone colludes in believing that war is the norm, nobody will recognize the imperative of peace." -- Anne Deveson
“What you leave behind is not what is engraved in stone monuments, but what is woven into the lives of others.” - Pericles
"We can ignore reality, but we cannot ignore the consequences of ignoring reality.” – Ayn Rand
"The happiness of your life depends upon the quality of your thoughts." Marcus Aurelius
If you have a heap of coax then trimming it down will reduce loss of about 0.4db per meter.
Changing to RG316 will improve performance over RG58U.
And if you need to fit a joiner - use an N type connector - constant impedance, therefore much more stable
ChatterBox
SupporterThis may help
Don.
TopicToaster
SupporterI wouldn't use a joiner anywhere between the aerial and the radio. It's best practise to use a connector only at those two ends.
But going from that description above about 'stuffing it somewhere', I'd be inclined to turf the coax and start again(ie. could be damaged already!).
At less that $2/meter, you'd be mad not too. At about $2 each for the two N-type connectors, it's not an overly expensive exercise.
Coax doesn't like sharp bends, so you'd get yourself 3-ish meters of new coax and keep the run as short and straight as possible. Of course dependent on where the radio box is relative to the aerial.
Stay away from potential interference noises such as high end power cables (battery leads!).
Always solder the inner(conductor) core. I use heatshrink on the outer sheath of the cable over external connectors too.
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