When W5PR noted research by the military on fan dipoles, a light went on in one of the few remaining brain boxes. Back among the old musty TM's from the Signal Corps courses I took back in the 50's I
Tnx for sharing that Dan, interesting reading. I even liked the bit about the BC-610 (my first HP amp in '62, could wipe out every TV and hifi within a couple of blocks I think). An I used the AN/GRC
Friend in the construction trade gave me a handful of what he called Gripples a few weeks ago and they got buried on my desk of stuff. He claimed they were SS and used a lot by electrical contractors
Amateur radio is more than a hobby, but that is certainly one part of the definition. I think we, including myself, often let ourselves get embroiled in subjective issues where our opinion seems impo
If true, I wonder how the trade and architects could accept and use them for a seismic bracing system in the hospitals shown in the Gripple videos, but maybe the this 'chinese finger' device is made
You can tell the ol' folks, nostalgia and 'I remember . . .' set in!! So, being older than most. I would be willing to bet the 40M folded dipole may have be an Amphenol antenna? I used one in '54 and
This conversation comes up at an appropriate time for me. I had just previously downloaded the Burndy Grounding Catalog, a hundred plus pages of everything re grounding and even an illustration (P11)
THAT is a very informative article Larry. wish it had been written to cover the common HF antenna stacking discussions, particularly when it comes to the stacking of dissimilar multiband antennas lik
All this discussion has been centered around standard tower. It is not possible to attach a ground clamp or similar connection to each leg of the moving sections of crankups such as the HG-70HD. Prob
That was the question I have Steve and I don't truly think it is a non-issue, particularly with the crankup tower instructions I've read re lightning protection. My interest was piqued by the discuss
I asked Dan, AC6LA, offline if he had ever modeled the TH7DX, an antenna I've been using since it was introduced (repaired a few times) and for which I have a spare and a half. He said no but thought
Went back and viewed the new manual and indeed that is an information addition not in the old original manual. I missed that, Tnx Joe. Don W7WLL On 11/1/2017 1:09 AM, Don W7WLL wrote: Have any change
Some years back I ran across a similar roll of around 200 feet of RG-6 on a small wood drum at a thrift store in the valley. Looked like it had been there awhile so made a ridiculous offer which was
Probably Radio Marti, located in Greenville NC and running 250 kW!!!!! They run 10-20 over 9 out here on the OR coast. Don W7WLL Lately, during the day, I'm getting full band interference on 20m. It
I purchased and mounted a Balun Designs 1115s on a TH7DX to replace that 'wonderful' BN-86 (second one). I made a SS sorta U bolt to hold it on the boom. Makes a secure mount. My recollection is pics
Agree with Terry. I've used MPD Digital for special cables needed for my AIS and ADS-B installations. Fast, high quality and reasonable prices. Don W7WLL I have found MPD Digital 'sagemaiden' on ebay
Ive purchased some items from the following, found them to be fast, price competitive, and strong on customer service. Latest buy was some 8 pin trailer connectors for rotor cable hookup inside one o
Agree with Terry, MPD has been a valuable source and delivers top quality at a reasonable price. They recently did some SMA cables for my ADS-B setup. Don W7WLL Hello fellow DX travelers, FWIW my exp
It is probable that many hams have purchased and used one or more MFJ products since its inception. I've personally purchased a number of MFJ over the years as well as products from MFJ acquired comp
Hi Bob, You certainly sound frustrated and upset and it sounds like you tried to get your problems fixed but couldnt. Not a good situation, not for you and not for MFJ. And no I dont take your commen