G Whip Professional Baluns for the Amateur
Made in Britain
There's some real junk around! especially on Ebay, just look at this mess below, a G0 made this one. The Chinese products are not much better either with water penetrating into the units, running down the coax cable and into the radio causing severe damage.
G Whip have been studying the building and construction techniques of amateur baluns and un/uns for a number of years and have come up with a watertight solution, build it right and it will last for years, build it right and it will perform well.
Don't waste your money on this type of junk for a few pounds more you can have PROPERLY made units.
And here's another one below loaned to me by a friend, this 6/1 followed by a 1/1 choke for a famous Windom is horrible, the sweep is shocking at 2/1 and the construction is just rubbish, wonder why your antennas don't work correctly?? The connections are not even insulated rendering the whole unit to short out when the wind blows.
Why do amateurs pay £129.00 for this type of rubbish? .... Answer: Well nobody knows what is inside until things go wrong!
Here is another one made by a guy in the UK who sells Vertical pole antennas, we were sent this picture and had to laugh !! Can you spot the mistake????.....email us and you could win a FREE prize if you can tell us the problem and the maker!!...................well done to Jay Hart of Lancs, you guessed right and win a 20 mtr end fed antenna. The problem is, if you look closely you will see that the wires are crossed over, and the maker is??
Below is a G Whip professional 1/1 PTFE coax made balun, it is a choke balun that prevents rf from being returned on the braiding of the feed-line.
Below we have another of our professional designs, a 4/1 unit, it took many months of work and studying to get this PERFECT and just look at the sweep, the return loss is some 40db which gives a superb match over the whole HF spectrum. PTFE Mil spec wire in a Teflon sleeve ensures superb input impedance by keeping the wires close together, this is serious consideration when designing, not just copying. G Whip prides itself in designing and not like the many baluns found on Ebay that are just copied and never tested.
Look closely at the unit, it has a PTFE SO239, total quality, the connections are stainless steel fittings which are potted to prevent coming loose, strain reliefs are fitted for suspension and the 2 balanced lines, and also to support the coax so it is not pulled out of the PL259, a condensation hole is also drilled into the box. Finally, the whole construction is Polyurethane potted for total protection. The sweep below shows a sweep of 2 to 60MHz, the blue line is RL (Return loss) and the red line is VSWR over the range of 2 to 60MHz. Insertion loss is negligible.
Make sure you buy G Whip baluns, just read the feedback and the reports on You Tube...............................
1/1, 4/1, 6/1, 9/1, 12/1 in un/un or balun configurations and power levels up to 5kw for those of you who have high power permits, all made with PTFE wire and Teflon tube, plus of course the right cores :-)
QRP 1/1 COMMON MODE CHOKE:
Here's a nice lightweight fully potted 1/1 balun (Common mode choke) dipole centre, 10 watts pep, it uses a Mullard FX1588 core and PTFE coax cable, cost? just £15.00 plus post. Fitted with solder tags and strain relief for the transmission lines. And yes it does have a lid, but we thought that we would show you the inside before you part with your cash!
100 WATT COMMON MODE CHOKE:
A superb in line 100 watt common mode choke to stop rf coming down the coax braid, PTFE low loss SO239 in/out sockets with coaxial strain relief. Fully potted and waterproof. Made from dual cores with fibre glass tape and PTFE coax this 5 + 5 turn should last a lifetime and is only £19.99 plus shipping. (Lid removed to show internals)...............Heavy duty versions up to 5KW.
100 WATT COMMON MODE CHOKE DIPOLE CENTRE:
A superb 100 watt common mode choke dipole centre to stop rf coming down the coax braid, PTFE low loss SO239 input socket with coaxial strain relief and 4mm stainless steel bolts with solder tags. Fully potted and waterproof. Made from solid ferrite rod and PTFE coax this multi-turn unit should last a lifetime and is only £19.99 plus shipping. (Lid removed to show internals).
500 WATT PEP COMMON MODE CHOKE:
Below is our super duper of common mode choke baluns, the core is a massive 63 mm dia and F9 material, the balun is wound with MIL coax and rated at 500 w pep, the connectors are the usual PTFE/Teflon low loss gold plated units, fully potted with cable strain relief fittings. This unit is only available from our re-seller www.rosscomm.co.uk
4/1 PROFESSIONAL BALUNS FOR THE AMATEUR
A selection of our potted PTFE wound baluns in Teflon sleeving, PTFE low loss socket, stainless steel connectors and all potted in a special rf type resin. Strain reliefs for your transmission lines and coax plus mounting hook. Supplied with self amalgamating tape for connector etc.
LOTS MORE TO COME............................