Yes, there are many radials on the ground, a total of about 6km. I found the position of the feed point is depending on my top loads. After replacing my 5L 10m against a 7L OWA and the shorty-forty a
RFS LDF4-50 price is about 2.50 Euros the meter in Germany. 73 Peter Hello All Looking for the best price I can get for 300 feet of LDF4-50A 1/2" heliax. Best 73's Paul - W2NMI ______________________
I forgout to change the designation. The RFS type is LCF12-50J. 73 Peter RFS LDF4-50 price is about 2.50 Euros the meter in Germany. 73 Peter Hello All Looking for the best price I can get for 300 fe
It is not mentioned in the factory specification, but I use it direct buried for almost 40 years. To me it looks identical to Andrew LDF4-50 as I use both types of cable. RFS invented corrugated coax
If the radiation resistance is only 20 ohms or less, that 0,05 ohms per meter might reduce the efficiency significantly. 73 Peter I'm using #18 solid Copperweld wire from Davis RF for my 160m Inverte
Physical bending of the tubing is not necessary. By using mounting plates with isolating Stauff clamps at the needed angle as element holders straight elements can be used. 73 Peter The forward gain
There is no reason a yagi match would loose 0.5dB. By lengthening the boom for OWA the gain can be kept the same as with the conventional yagi. 73 Peter How much loss is there in a conventional Yagi
Indeed, I built a 7 element 10m and a 6 element 15m some years ago and converted 2 of my KLM yagis to OWA last year and 4 other KLM to follow during the summer. Also converted HyGain yagis to OWA suc
You will almost being not readable with your top end extended to 3.8-3.9 kHz or higher on a standard filter which we use over here, espeally when you raise signals above 2.8kHz by EQ. Band width abov
With a straight dipole at 0.25 lambda base would have heard you much stronger. The main lobe of that dipole is also straight up at 90° but with much more gain. NVIS is good when the military wants ju
I had very good results in our local (within Germany) sprint contest on 40m with the Jamaica antenna where only high angle radition is necessary and supressed interference from Europe. http://on5au.b
No, my best 160m receiving antenna is my vertical. Very weak signals are not audible on my receiving antenna. My receiving beverage antennas 120-160m long are only good for directivity like suppressi
95% velocity factor will probably be allright, a thin wire is typically 3% shorter for quarter wave resonance then free space calculates. 73 Peter required, I meant 59 inches for 50.000 MHz. Quarter
Hi Rick, The quarter wave symmetrising stub for common mode supression in this case is not a transmission line, it can be seen as a pvc insulated wire when coax is used. It does not need to be a coax
Indeed, HFTA is extremely helpful when optimizing antenna heights. I have a sloping foreground advantage when working USA and use 5/5/5 on 20m. Here is the HFTA diagram: https://pbase.com/df3kv/image
I am turning LCF12-50 solid core cables for more then 40 years and never had one broken. RG218 with its solid 4.95mm inner conductor is turned as well without any problem. I would not use thin cable
I donīt think so, he is not even using feed through insulators. 73 Peter This guy make them best in class, I guess are same level or higher than DXE and Balun design. ________________________________
Before WX0B switched to use feed through insulators I replaced two of his baluns on Optibeams at a friend. Baluns were made from RG393 wound through ferrite toroids. Around the stainless steel screws
I have 4 Prosistel rotators in use and all masts slipped whatever I torqued the screws. So I decided to drill through the masts and used fitting bolts to fix that. I used an electrical hand drill wit
I find it very useful 73 Peter Your link is useless. mishaps climber occured risk. a level, page. _______________________________________________ _______________________________________________ Tower