The tank is plasic

The tank is plastic and I intend to fit an SG239 remote auto atu.
Can give some examples of suitable relays please ?

Hi all.


I have these issues with my antenna:

My antenna is on top of a three storey building. I have a 1000 liters water storage tank, connected to the house water supply, by plastic pipes and   is always full. Can I use it as an RF ground ?

I will be installing a remote auto  atu. I am afraid that it will not survive long, as my Qth is prone to thunderstorms and lightning in winter. A knife switch is fine to ground the antenna, but it is not practical for me to go up and down frequently to the rooftop. A remote knife switch does not exists, and I am afraid to fit an RF relay.

A gas filled arrestor will be the ultimate solution, but they are only available for 50 ohms coax ! Cannot be used on open feeders. A spark gap will only work at a relatively high voltage.

Any comments please ?

Thnaks

Paul

Hi all.

My antenna is on top of a three storey building. I have a 1000 liters water storage tank, which is always full. Can I use it as an RF ground ?

Hi all.

I live in a qth which is very prone to thunderstorms in winter.

Which are the best arrestors, spark gap or gas filled ? If a gas filled flashes, does it need to be replaced ?

Which type is  ideal for a remote atu ?

Hi all.

I live in a qth which is very prone to thunderstorms in winter.

Which are the best arrestors, spark gap or gas filled ? If a gas filled flashes, does it need to be replaced ?

Which type is  ideal for a remote atu ?

As far as I am concerned, the subject is closed. I am sorry I had to mention names, as I was forced to my apologies

di di di dah di dah

 Dear WB2WIK,

I see, you do not have much to say !!
Go on say something more , go on !!

What I mean is on the web, not on air.
On air is a different story. We are chased as dx. That is ok
And I did not mean all !!, but most.
Only today , I had a very detailed technical report from Rick, KK7B, about my experiments on how to eliminate AM breaktrough in DC receivers, like the R2pro, Tayloe, etc.  which is a plague  here in Europe.
But I am still wating for a reply from  W6JL, who never showed up !
This just one example in a day's work. I am a pensioner and a cancer survivor, and spend most of my time homebrewing and experimenting, rather than operating. When I pose a question to a dx ham, he promptly answers, not the same for UK and US !!!!

Take for example, the GQRP club. Rev Dobbs is very understanding and helpful, with no predjudice. But, Mr Fishpool, the moderatyor of the forum, is very predjudice. He runs the forum as a British Admiral, the glory of the Long Gone British Empire !!!. UK and US hams can say antything, gfreely,  but me, no.

Sorry guys, but my predjidice is proving right !!

Paul

9H1FQ

I often communicate with fellow amateurs around the world, expressing my views and exchanging information on technical matters.
 Occasionally, I  do not expose my call sign immediately, but when I do, most radio amateurs ignore me! And never reply back, or do not reply at all.
 The web is almost dominated by US and UK fora and discussion groups and they give the impression that they are supreme, or infallible! A well known qrp club discriminates between dx and US & UK amateurs. This is especially true on their discussion group, where UK and US amateurs can express their views freely, with very little, or no moderation, as against the opposite, with DX amateurs.

 Paul Debono
 Proud to be 9H1FQ

Hi all.
I have an Antex 660TC soldering station with a TC50 iron.
The red  light is gone, and the iron is not heating up at any temperature
Anyone has the circuit diagram of this thing please

The big ones have contracts with Fedex, UPS etc and there is  a part of their profits !! I do not mind to wait for 10 days, by US post. Whats the hurry for ? We are in no buisness !!!

When diconnecting the LCD screen the tone stops.
The screen is too close to the SI570, and the FIN1002 !

Thanks all folks

Paul
9H1FQ

I have recently noticed that when making orders by Paypal, the amount of postage paid is never printed on the received parcel/packet !!
This is a  cause of concern, because a seller can abuse and charge any amount for shipping.
I am from Malta, Europe, and the variations in postage paid by sellers in US, for the same kind of packet/parcel/carton is remarkable. Have a look at Ebay ! Some, if not all sellers of small, almost wietghless components charge astronomically high shipping charges.
I have filed a complaint to Paypal, and they say that it is their standard procedure, not to print shipping charges on parcels/packets/cartons !!!!!!

I am experimenting with Tayloe switching front end.
I have an FST3253 switching mixer, fed from 74ac74 divider and an SI570, with a FIN1002, controlled by an MC9SQ8QG8 and 24AA32 controller. An LT6231 op amp amplifies the whole thing.
The set works excellent, but I have noticed a 1Khz backround tone, present on alll bands and frequencies, it is static, does not change in the  frequency or level.
Any ideas how to eliminte please ! The whole project is well decoupled.
Paul