Pine trees taller than 100 feet could be an issue, since they could be near resonance and lossy - a sad combination when within a wavelength or so of vertically polarized antennas. If your trees are
I recall comments at a hamfest talk several years ago from Roy, W7EL, that his two-element 40m vertical array appeared to have an unintended null in the direction of a stand of evergreen trees not to
Good work and thinking, Don. Sometimes noise is tough to locate. techniques work). Here is a link to a simple website I created that contains pictures, oscilloscope screen shots of receiver audio, an
Is anyone using these ruggedized Freescale LDMOS transistors in any new amplifier designs? <http://www.youtube.com/user/digikey?v=KZF-FR8b71s&feature=pyv&ad=14013206369&kw=ldmos> Mike N2MS Mike, We s
I ran some A/B comparisons with the Inv Vee and determined that they are very similar in performance! I was hoping the Loop would blow away the Inv Vee but was disappointed when this did not occur. H
I am only moving my finger a fraction of an inch and my hand not at all when this happens .The feed lines are disconnected when this is going on .There is no dc continuity between the antenna and any
Thanks to everyone who responded .The posts by K7TJR and W8JI were most helpful in understanding what is going on .I should add that the phasing box in the shack is continuously variable, (NCC-1) so
Is it really necessary to isolate the vertical from the pressure treated 4 x 4 with PVC tubing and is it really necessary to install a 1:1 balun between the antenna and feedline in this 4-square rece
I live in the central valley of California which is only about 300 feet ASL. I do not live near the coast nor live in the "high desert ". Height above sea level doesn't matter. Height compared to imm
I'm reposting this to the reflector: Yes, I do have DSL. I have a very good RFI filter on the DSL line coming to the modem so I think it might be a cabling problem. Everything was working FB until re
I did so much research on the construction and installation of the Beverages, I feel really stupid because I didn't think of one possibly critical aspect (nor did I see it discussed). I have the 75 O
I have been looking on the Internet, and one possible solution is Array Solutions Model AS-RXFEP, RF Front End Protector. The advertising claims to protect in the feedback situation as well as in a l
The polyphasers are good protectors but be aware that they rely on gas tubes for protection and their failure mode is one that leaves you unknowingly unprotected. After so many ionizations the gas tu
Could that not be said of any inline protection then? Almost, anything but a disconnect. Also, while we sometimes go wild with grounds, nearly ALL of the protection (or lack of protection) comes from
One of the reasons I have mot gone to high power on 160 is the cost of capacitors for my omega match - at least $300. Anyone know of any workable alternative? I remember someone writing about using c
Using a thicker wire, or multiple wires in a drop, always helps. Last single thin wire I used was around 1970. :-) Thanks, Tom. I thought I recalled this advice from an earlier reflector post, but co
Its easy to use an MFJ-259 to quickly check cable loss, using its cable loss mode. Its more accurate if you build or purchase a simple 50:75 ohm broadband matching transformer. The 259B uses 1/2 of o
Yes, there is a great solution, I'm using it for almost 10 years. The issue with capacitors in 160m is the dielectric an most capacitors get hot and change the capacitance. I used 19 x 62 pFNPO 3KV c
To this end, if my signal (W0ODS) was offensive in any way kindly let me know (Off-list, please). >>> I hope everyone attempts to contact a person in private first, and only uses public means when no
Would that EVERY such case be treated in the same manner, Tom, exactly as you describe & as I acted upon--but sadly, it does not. And it leaves so-called "transgressors" feeling hurt, angry, dis-enfr