Yaesu FT-710

[S58Y]

Mojih 5 centov...

https://www.sv1afn.com/en/products/trs-450-transmit-receive-switch-rx-interface.html

Pibo hvala za tole objavo. Za tiste, ki radi spajkajo je objavljena tudi shema.

[s57l]

Seveda, ampak haters will hate…
Še ena škatla za nosit, še 120eur + ptt, pa še dodatna možnost za kaj pokurit ali kaj crkne…
Podobno sem si že pred leti zložil rele kar v k9ay škatlo, za ts480, ki tudi nima rx antene.
Enim pač nepomembno, enim pa dealbreaker…
Upam da bo tudi na tx super štacjon (čeprav enim tudi to nepomembno), srečno klofanje in dxanje!
73 gl
Janko s57l

[s51un]

Drobovina pa vpogled:

https://www.youtube.com/watch?v=vp4flXim_lw

[S57NAZ]

Če koga zanima razlaga, pa ne razume Japonsko, lahko nastavi slovenske podnapise!

73 de Marko

[s55o]

Lepo, po dolgčem času aktivna in objektivna debata o ham postajah.
Največji minus pri takih škatalah ki delajo to, kar bi morala že postaja . Pri tem boxu kot tudi pri večini postaj ni možno urediti, da so nastavitve za poslušanje glavne in RX antene različne (vsaj na ts590 ne).
Ko bo narejen tak interface še z različnimi ATT in PREAMP, ki se jih bo dalo naštimati glede na posamezen input, bo zadeva smotrna.

Z malenkostnim popravkom - par konektorjev bi bila tale postaja top (seveda če bodo meritve TX karkoli podobne ts590).
lp

[s53v]

Meritev,kot jo opravi DC4KU ,ki je za SDR sprejemnike pravilna vključno z NPR meritvijo. Werner DC4KU tudi vzorno
testira oddajnik in ne pomanjklivo kot to za RTX opravi Rob Sherwood.Zanimiva je tudi primerjava s FT-dx 10, SUN SDR2DX ,IC 7300.... itd.

https://dc4ku.darc.de/FT-710_Test-Repor ... nglish.pdf

in še varianta v nemščini

https://dc4ku.darc.de/FT-710_Test-Report_DC4KU.pdf

lp/73

[s51un]

Primerjava IC 7300 in FT 710, avtor ON6AB, objavljeno na eHam.

Before buying, I compared the IC7300 specifications against the very much hyped Yaesu FT710:
What everybody can see right away is that the spectrum scope on the FT710 is awfull but I also discovered a few more interesting things:
- The FT710 is not such a “modern” transceiver as I thought;
The ADC chip in the IC7300 ( an LTC2208-14) dates from 2005, the ADC in the FT710 ( an ADS62P45) dates from...2007.
So you can hardly call the FT710 an “innovative” or “modern technology” rig.
Both are 14 bit devices ( the FLEX is 16 bit). Note: The IC7610 is also a 16 bit rig.
But:
- The IC7300 ADC is 130MSps where the FT710 is 125MSps.
- The IC7300 ADC SNR is 77,1dB while the FT710 is only 74,2dB
- The dynamic range of the IC7300 ADC is 98dB but only 88dB for the FT710 ADC.
- The analogue bandwidth of the IC7300 ADC is 700Mhz but only 450Mhz on the FT710.
- The FT710 has a dual channel ADC whereas the IC7300 is only a single channel ADC but I don’t think you buy much receiver power with this feature.

And then there is the OVF light which “comes on” on the IC7300. Especially on the low bands.
However, the IC7300 has so much gain to spare you can easily turn back the RF gain without missing a ping.
The FT710 does NOT overflow. Why?
Because the FT710 has a special AGC (which turns the RF gain down) to avoid that.
So basically, it does exactly the same as YOU turning the RF gain down manually on the IC7300.
The spectrum scope is marvelous and crisp on the IC7300 and has many settings and possibilities.
You cannot see the extremely weak signals on the spectrum scope, but you DO see them on the waterfall.
The Sherwood measured 2kHz dynamic range of the FT710 is 107dB which is very very very very good.
The Sherwood measured 2kHz dynamic range of the IC7300 is 97dB which is very very very good.
They both are “overkill”

About the noise floor,
THe IC7300 has a HF noisefloor of -142dB whereas the FT710 has -135dB. That's a HUGE 7dB difference!! Compared to the IC7300, the FT710 is a genuine noise generator!

Finally there’s IPO+ or dithering.
Dithering improves the IMD but it can make extremely weak signals more difficult to copy.
With the FT710 you have no choice. Dithering is allways ON.
With the IC7300 you can turn it ON or OFF depending on the situation.
In my opinion, the FT710 cannot compete at all with the IC7300.

The IC7300 seems to be designed by hams, the FT710 by computer nerds.

[s53v]

Za običajno "ČVEKANJE" na bandu je dober že vsak TRX ki se je pojavil na trgu po letu 1990. Proizvajalci TRX-ov so pa podobno,kot proizvajalci os. vozil začeli pretiravat z nekoristnimi dodatki, ki lahko samo zakomplicirajo življenje-skratka "ŠMINKA". Edini pravi test postaje za tiste, ki potrebujejo res dobro postajo je testiranje v tekmovanjih kot so CQ WW , WPX...
ali v UKV tekmovanjih kot je npr. Julijski ali Marconi v povezavi s transverterjem Javornik na tekmovalni lokaciji.

Na vse prej kot na razne Shewwood teste je potrebno gledati na ergonomijo postaje . Ni ravno prijetno vseskozi šariti po menijih ali pa drug primer, da moramo pritisnit nekaj tipk, da vklopimo določeno funkcijo, da ne govorim o raznih "touch screen " tipkah in problemih med tekmovanjem, ko imamo vlažne prste.

Seveda pa obstajajo tudi amaterji, ki kupujejo postaje predvsem za sliko na QRZ.com ali za QSL-ko, medtem ko ga na bandu praktično ni nikoli slišati.

Investirajte raje v antene, kot pa v "šminko". Nekaj podobnega se je včasih dogajalo pri audiofilih, ki so prav tekmovali in se potem hvalili kdo bo imel najdražjo audio napravo potem pa je na to priključil. "zanič" zvočnike v sobi z betonsko steno.


lp/73