Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Radio Equipment => Topic started by: U-33 on May 31, 2014, 09:59:52 am

Title: The long and the short of it?
Post by: U-33 on May 31, 2014, 09:59:52 am

My newly acquired Robbe F-16 has the optional short helical aerial fitted to it...I also have the long metal aerial. What's the disadvantages of the shorter aerial, chaps...loss of signal, I guess? The radio will be installed in a sub, by the way.


Rich

Title: Re: The long and the short of it?
Post by: essex2visuvesi on May 31, 2014, 10:45:46 am

There is a marginal loss of signal range.  noticeable, but not enough to worry about under normal circumstances.
Using in a sub however, I would do a little range testing before fitting to your pride and joy

Title: Re: The long and the short of it?
Post by: U-33 on May 31, 2014, 10:48:35 am

Cheers, E2V...I guessed as much. Think I'll refit the long metal aerial, just to be on the safe side...




Rich

Title: Re: The long and the short of it?
Post by: roycv on May 31, 2014, 10:55:52 am

My last Fleet system had a short stubby aerial (40 Mhtz.) and I found it only had 20 odd feet range.  I replaced it with a telescopic one and range is out of sight now.
regards Roy

Title: Re: The long and the short of it?
Post by: U-33 on May 31, 2014, 11:01:53 am

Cheers Roy...metal one due to refitted after I've finished me cuppa.


Rich

Title: Re: The long and the short of it?
Post by: U-33 on May 31, 2014, 02:59:14 pm

Job done...funny, the FC-16 aerial seems to be shorter than the one on my old F-14. Anyone else noticed that?


Rich

Title: Re: The long and the short of it?
Post by: inertia on May 31, 2014, 03:15:06 pm

At the risk of sounding vulgar, the important length is when it's extended.  :embarrassed:
Rest assured that the one you have is the one which came new with the Tx.
DM

Title: Re: The long and the short of it?
Post by: U-33 on May 31, 2014, 03:16:40 pm

Absolutely Boss...no length = problems.




Rich

Title: Re: The long and the short of it?
Post by: U-33 on May 31, 2014, 03:18:43 pm

Oh yes, I know it is...I have absolute faith in your good self, Boss.


Rich


(I've just noticed that the image has come out sideways...how strange?)

Title: Re: The long and the short of it?
Post by: essex2visuvesi on May 31, 2014, 03:19:54 pm

(http://i532.photobucket.com/albums/ee322/Essex2Visuvesi/OohMatron.jpg) (http://s532.photobucket.com/user/Essex2Visuvesi/media/OohMatron.jpg.html)

Title: Re: The long and the short of it?
Post by: inertia on May 31, 2014, 05:09:01 pm

Quote from: essex2visuvesi on May 31, 2014, 03:19:54 pm

(http://i532.photobucket.com/albums/ee322/Essex2Visuvesi/OohMatron.jpg) (http://s532.photobucket.com/user/Essex2Visuvesi/media/OohMatron.jpg.html)

See what I meant?

Stupid boy.............

DM

Title: Re: The long and the short of it?
Post by: Liverbudgie2 on May 31, 2014, 05:11:59 pm

Never had problems with my rubber encased ones.

LB

Title: Re: The long and the short of it?
Post by: essex2visuvesi on May 31, 2014, 05:39:00 pm

Quote from: Inertia on May 31, 2014, 05:09:01 pm

See what I meant?

Stupid boy.............

DM

Sorry.... had to be done  O0

Title: Re: The long and the short of it?
Post by: Robert Davies on May 31, 2014, 06:07:53 pm

Quote from: Inertia on May 31, 2014, 05:09:01 pm

See what I meant?

Stupid boy.............

DM

It sounds better from….

Title: Re: The long and the short of it?
Post by: Subculture on May 31, 2014, 07:03:40 pm

I use the helical aerial on my FC16, never had any range problems, although I tend to keep the sub close by, otherwise you can't see squat. It's easy to change if you choose to.

Title: Re: The long and the short of it?
Post by: U-33 on June 01, 2014, 12:17:05 pm

On our club lake I often go out on long distance patrols...about fifty/sixty yards or so away from me (that's surfaced) but when running submerged I tend to stick close in. When I had the Neptune with the F-14 fitted with a helical aerial, I did notice at odd times that the failsafes would cut in when sailing at a distance, but with the metal aerial fitted, there were no such problems.


Rich