Search results

Sirio Mag145PL is the one to go for, PL tells it accepts antennas with a pl259 base, Mag base has so239 socket, can also be used on sirios 2/70 range too. You can also buy a Sirio S0239 - 3/8 adaptor that fits the mag base perfect, which between them will allow you to mount 90 % of cb/ham...

On another positive note, tracing the faults shouldn't be too difficult either, never a good idea fitting anything but the original rating of fuse, can only end in tears at best.

That's also a possibility Bob but going by the stated 107" I assumed the capacitor was in the base, centre pin feeding an internal smaller tube separated from radiator by a surrounding dielectric, similar to an internal gamma match. but it could be either without closer inspection. why...

only fibreglass antenna i liked was original 7ft firestick, dx27 wasn't too bad either, never tried francis amazer but heard good things about them. i tended to stick to avanti av261m and later sirio hp 4000, two superb antennas.

maybe if you'd read the first sentence instead of leaping in trying to make me look wrong, you'd have realised i knew it was a loaded antenna, as i said, " it depends on the antenna" then i went on to explain how it affects a whip that's physically too short, which most US cb'ers are...

the impedance is actually lower on a 1/4 wave gp with horizontal radials. at 180 degree, a dipole, its nominally 72 ohms, at 90 degree its nominally 36 ohms, at 135 degrees its 54 ohms, starduster is just under 135 degrees to give a direct 50 ohms/ 1.0:1 vswr. ideal for direct feeding with...

I'd be rechecking solder connections and groundplane is sufficient, before i start hacking at whip, whip should be adjustable if it has 2 set screws. cutting a whip is a last resort and your readings suggest poor ground/ bad solder connection and your positioning isn't the best, those coils are...

One uses a very lossy coil matching system, where the other's main loss are from a slight feedpoint mismatch in swr that will vary with height/placement but i doubt will be as much as those tiny narrow coils in A99.

Must admit I rounded it down a little for simplicity, and only calculator i used was the one on my Blackberry, the formula I know off by heart so don't trust online calculators. 300/27/2 x .66 x 3.28 to convert to feet, but as calculators are decimal and not imperial you will still get a...

I did and as was pointed out by sdmahr what difference would it make, even aluminium coated in 99.99%% copper woud be better than copper of a lower percentage like you find in many snidey Chinese cables, as almost all of the RF travels on the surface where the copper is it will probably be...

A99 isn't a dipole, its an end fed 1/2 wave with very lossy coil system like a silver rod, it uses your coax as a counterpoise unless you prevent it. dipole would be slightly better, especially if designed as a T2LT which is a centre fed coaxial dipole that can be taped/cable tied to a 10 metre...

My bad mate, I must have missed it :redface: , hope your well mate :wink::biggrin:

It would really depend on antenna used, a resonant tuned antenna then the whip would require trimming, but a 102" whip that is physically too short to start with may well benefit from adding a spring or 3/8 extension. The braid inside also ensures that if the spring (coil) is conductive it...

Think its bad with 73 or 73's back in the day it was 51 55 73 and 88, The first two seem to have been lost over the decade or so I was off radio between 89 and 2000, when I came back I couldn't believe how bad things on 11m had got, people calling QRZ dx instead of CQ or CQDX, wtf is that...

Most springs have a braid runs up the middle for continity so would detune the radiator which many use to advantage having bought 102" whips that are too short. Hope that helps.

As CK says 9FT is nonsense as a 1/4 wave in most cb coax that has solid dielectric is 6ft, but if you must use any multiple and trust me it won't change a thing at the antenna end, it would be 12 ft half wave multiples, or impedance repeaters, which would give you most accuracy when measuring...

For the money you'd spend on a cb base station, you could pick up a kenwood TS50, TS430,TS440,Even a good TS570D all second hand in good condition, some will cost you less than a CB base, Then there's the Icom 706 MK1/Mk2,Mk2g, Ic 718,Alinco dx70TH all will sound better on SSB, most offer...

What difference does that make, RF only penetrates microns into the surface area anyway, due to the skin effect, vould have liquorice inside the cable and wouldn't make the slightest difference! Plus aluminium is almost as good a cunductor as copper is, I fail to see the point your making. Many...

Your bang on Connor, 300 clean watts sounds much better than 500w that's happy or dirty watts. It won't even move a properly calibrated S meter half an S Point. You would need to go to 600w or 3Db gain to achieve a full .5 S Point, (The general accepted measure of an S Point is 6Db, on a Cb you...

Most are kebab/pizza/curry shops now, chippies are fewer and fewer and only a few decent ones left in Glasgow and clyde area, tbh I prefer an English cod fish supper to Scottish ones, especially haddock thats most common here, I prefer whiting as its halfway between the two and bones thin...