Perforated dishes wrongly described as "mesh"

[davemurgtroyd]

Why do so many people wrongly describe "perforated" dishes as "mesh". The structure is nothing like a mesh.

 

[timo_w2s]

Not sure, always knew them as mesh dishes back in the 90s. Apart from Sky mini dishes you don't see so many these days.

 

[Captain Jack]

Er.... what *is* the difference?

 

[rolfw]

Mesh is crossed over wire or fibre, perforated is solid material with holes punched in or cast with holes in.

 

[Archive4]

View attachment 77728

This is mesh

 

[Channel Hopper]

Mesh is crossed over wire or fibre, perforated is solid material with holes punched in or cast with holes in.

Solid fibreglass/smc dishes are also mesh - strictly speaking of course.

 

[archive10]

Solid fibreglass/smc dishes are also mesh - strictly speaking of course.

...wheteas ABS plastic dishes (SMWs) are in fact solids , as they have a reflective coating rather than embedded mesh. Maybe they are better for Ka than SMC dishes?
(There must be a reason why there are specific Ka band SMCs from prodelin and skyware that cost a lot more than the Ku equivalents...)

 

[Tururu]

Depending on the frequency, drilled metal surface is continuous and reflects the signal to 100% (for example). Being the highest frequency (band KA), the holes must be smaller or the signal is not reflected, crossing the plate portion of the signal and the reflected signal down on the LNB.

In Spain they had had the time these antennas (75-85 years if I remember correctly), most also "mesh" (actually perforated disk), do the stamping perforated makes them more expensive and now can not find them easily, they are all solid they are cheaper.
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En funcion de la frecuencia, la superficie metalica taladrada es continua y refleja la señal al 100% (por ejemplo). Al ser la frecuencia mas alta (banda KA), los agujeros tienen que ser mas pequeños o la señal no se reflejara, atravesando el plato parte de la señal y bajando la señal reflejada sobre el LNB.

En España tubieron su momento estas antenas (años 75-85 si no recuerdo mal), casi todas tambien de "malla" (disco perforado realmente), hacer la estampacion perforada hace que sean mas caras y ahora no las encuentras facilmente, todas son solidas que son mas baratas.

And ear is perforated

If you heard, my son think is right (for references not see), repair the perforation are 10 minutes to a specialist (according to comments), do not forget bathing wear earplugs to keep out water makes bathing caps and as headphones, from moment to practice in a company before finishing school.
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Si es tú oido, mi hijo creo que es el derecho (por referencias que no ve), reparar la perforacion son 10 minutos para un especialista (segun comenta), no olvides usar tapones de baño para que no entre agua, hace tapones de baño y audifonos a medida, de momento en practicas en una empresa, antes de terminar los estudios .

PS: @Brian Philpotts... Nice wifi antenna/Bonita antena wifi.

 

[Archive4]

PS: @Brian Philpotts... Nice wifi antenna/Bonita antena wifi.

Just for the record, that was for the first TV system we had in for English TV. Re-beam system by a firm called Telemicro Levante. They got taken out by the Guardia Civil for tax irregularities!

Sólo para que conste , que era para el primer sistema de televisión que teníamos en Inglés para la televisión. Sistema de Re - viga por una firma llamada Telemicro Levante. Ellos se toman a cabo por la Guardia Civil por irregularidades fiscales !

Bet Google didn´t get that right!

 

[daro2096]

It is a nickname that stuck.