Topband: fixing beverage

[James Bennett]

Jorge,

I also have a 4170 and it does do TDR without any additional software or hardware. The user manual has several pages on how to use the 4170 as a TDR.

Jim Bennett / W6JHB
Folsom, CA

> On Nov 23, 2015, at 5:03 PM, donovanf at starpower.net wrote:
> 
> Hi Jorge, 
> 
> 
> The AIM4170 has TDR capabilities. I don't own an AIM470, but 
> surely someone on the Topband reflector can help you use it 
> as a TDR. 
> 
> 
> 73 
> Frank 
> W3LPL 
> 
> ----- Original Message -----
> 
> From: "Jorge Diez - CX6VM" <cx6vm.jorge at gmail.com> 
> To: donovanf at starpower.net 
> Sent: Monday, November 23, 2015 11:56:32 PM 
> Subject: RE: Topband: fixing beverage 
> 
> Hi Frank 
> 
> I google and the first option was Campbellsci.es 
> 
> In 5 minutes the CX representative emailed me and told me that is a very very expensive toy for my use :-) 
> 
> I have the AIM4170, will do this job? I use the software AIM_852.exe I need another software or this is OK? 
> 
> Thanks, 
> Jorge 
> 
> 
> -----Mensaje original----- 
> De: Topband [mailto:topband-bounces at contesting.com] En nombre de donovanf at starpower.net 
> Enviado el: lunes, 23 de noviembre de 2015 06:51 p.m. 
> Para: topband at contesting.com 
> CC: dl8yhrfrank at aol.com 
> Asunto: Re: Topband: fixing beverage 
> 
> 
> Hi Frank, 
> 
> 
> My TDR is nearly fifty years old, but still it works great. 
> 
> 
> Array Solutions sells more modern multi-functions devices that are perform very well as a TDR. Here's an example display from Array Solutions' web site: 
> 
> 
> https://www.arraysolutions.com/images/AIMuhf-TDR-fig1.png 
> 
> 
> The display for a Beverage looks very similar, you can see every component from the shack to the termination resistor. 
> 
> 
> 73 
> Frank 
> W3LPL 
> 
> 
> ----- Original Message ----- 
> 
> From: dl8yhrfrank at aol.com 
> To: donovanf at starpower.net 
> Sent: Monday, November 23, 2015 9:20:55 PM 
> Subject: Re: Topband: fixing beverage 
> 
> where can i get such toy? 
> 
> 
> 
> 
> 
> 
> -----Urspr ngliche Mitteilung----- 
> Von: donovanf <donovanf at starpower.net> 
> An: TopBand List <topband at contesting.com> 
> Cc: Jorge Diez - CX6VM <cx6vm.jorge at gmail.com> 
> Verschickt: Mo, 23 Nov 2015 9:39 pm 
> Betreff: Re: Topband: fixing beverage 
> 
> 
> 
> 
> 
> A Time Domain Reflectometer is one of the best tools to verify 
> the proper performance and isolate faults of a Beverage and many 
> other types of antennas. 
> 
> 
> In the case of a Beverage, the TDR allows you to see every 
> component of the antenna system from the ham shack all the way 
> to the termination resistor. If anything fails you can almost 
> always walk directly to it with the needed replacement parts and 
> tools in hand. 
> 
> 
> 73 
> Frank 
> W3LPL 
> 
> ----- Original Message ----- 
> 
> From: "Jorge Diez - CX6VM" < cx6vm.jorge at gmail.com > 
> To: "TopBand List" < topband at contesting.com > 
> Sent: Monday, November 23, 2015 8:29:15 PM 
> Subject: Re: Topband: fixing beverage 
> 
> Thanks all you guys for the help 
> 
> Will do this tests and see what is wrong 
> 
> 73, 
> Jorge 
> CX6VM/CW5W 
> 
> -----Mensaje original----- 
> De: Tom W8JI [ mailto:w8ji at w8ji.com ] 
> Enviado el: lunes, 23 de noviembre de 2015 02:35 p.m. 
> Para: Jorge Diez - CX6VM; 'TopBand List' 
> Asunto: Re: Topband: fixing beverage 
> 
>> 
>> I notice that my USA beverage is lower in 3-4 S units that some weeks ago.
> 
> 5-20 dB. Depending on receiver and where it is at on the S meter. 
> 
> That has to be a poor connection, open, or short between the receiver and the 
> Beverage transformer end of the Beverage. It cannot be at the termination end. 
> 
> 
>> At simple view all seems to be OK. I think the coax is not the 
>> problem, because if I have a problem in the coax, will be completely deaf,
> right? 
> 
> No. Coax can do this. It happens all the time. Especially at connectors. 
> 
>> 
>> So this can be the cause of a problem in the end resistor or maybe in 
>> the transformer? I use in this beverage a WX0B beverage boxes
> 
> It can not be at the end resistor termination. 
> 
> The problem is if you disturb something it will often start working. You need to 
> carefully check one thing at a time. Many times, if not most times, this is 
> corrosion or tarnish on the center pin of the coax. Sometimes it is a broken 
> wire, or a bad part from lightning or water. 
> 
> The best way to test it is with an SWR meter and do a frequency sweep from the 
> house, before you touch the antenna or any outside connections. The frequency of 
> either adjacent major dips in SWR or impedance will allow you to calculate 
> exactly where the problem is. The MFJ analyzer will do this within a few feet, 
> even on a 1000 foot cable, by using distance to fault. 
> 
> 73 Tom 
> 
> 
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