[TenTec] Eagle problem?

[Brian Carling]

AC 3rd pin is not going to be a very effective ground for protection from lightning damage.

Best regards - Bry Carling AF4K



> On May 15, 2014, at 4:17 PM, Robert <rmcgraw at blomand.net> wrote:
> 
> Braid is not the best choice for a low inductance RF path.  It is although necessary for flexible applications. 
> 
> Personally I bond all equipment to the station supply and do not use anything but the AC 3rd pin for safety reasons. 
> 
> 73
> Bob, K4TAX
> 
> 
> 
> Sent from my iPhone
> 
>>> On May 15, 2014, at 2:20 PM, Carter <k8vt at ameritech.net> wrote:
>>> 
>>> On 5/14/2014 5:56 PM, Stuart Rohre wrote:
>>> Some Yaecomwoods do suffer from RF entering the rig.
>>> 
>>> MOST ANY rig will if you have a bad shield connection on coax jumper, or have rig too close to the antenna, (second floor shack), and there are many other rig and feedline issues to rule out in any RFI case.
>> True, can be many causes, but I am in a basement shack. Also, a few years ago, I used a Drake TR-7 on SSB with everything else the same and it worked fine. However, I realize that the TR-7 was not as "computerized" (dependent on microprocessors) as the Omni VI.
>>> 
>>> Rule of thumb:  Power all equipment from same circuit breaker of the house.  That ensures AC grounds will not be coming from widely different locations.  IF you have to use a long ground wire for lightning protection ground on the station (like from second floor shack), consider that it could act as an "antenna" for pick up of RF from the real antenna. You may need tuned radials, or a radial for each favorite band.
>> Good tip and I believe I am on the same breaker for all the ham equipment. Again, a basement shack and 5 or 6 feet of a single 3/4 inch wide braid from the ground  of each piece of equipment to the ground rod right on the outside of the basement wall.
>>> 
>>> You could always examine the quality of the grounding of the mike cable shield.  Some older mike cords had just a multi-strand wire wrapped in one direction and not a hatch pattern wire shield. Some aluminum foil shields don't make a good low impedance connection by clamping. (Connections that can't be soldered are suspect).
>> 
>> Should have mentioned this earlier, but back in the day before I used any computer interface, I had the problem with both a TT 705(?) mic and a Heil Pro headset. Probably unlikely that both were defective.
>> 
>> 73,
>> Carter   K8VT
>> _______________________________________________
>> TenTec mailing list
>> TenTec at contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec