Saturday July 31 , 2010
Română (România)English (United Kingdom)

Yaesu VX-150

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I brought one of this as a second hand unit to back-up my portable radios "fleet"... As I did'n have had already more radios than my limbs... HI So, when I saw a little ad about someone trying to sell one of this nuits, I grab it...


What to say? Is small... Really small and fits very well into my hand. Also the LCD is very small. Maybe too small for googled eyes like mine's, but it provide a lot of informations. Also nice to have alpha tag for the memorised channels.
I manage to buy a MH34B4B external microphone, a 6 cell battery holder FBA25 and a SMA to BNC adapter to use the radio with a small magnet mount antenna.
The receiver is one of the most sensitive receiver on a HT (not like the GP300 but fair enough). But not with the stock antenna. Instead I use a Maldol 3 inch stubby with yellow cap for 136-152 Mhz range. Seems to be a much better antenna for this HT.
I like the 200 memories and also I feel comfortable that I can use programming software to set the channels.
The radio is known to have a problem with the PA final stage MOS-FET transistor. It faults when transmitting with the radio wired irectly to the car's battery. As I have a Diesel car, on the go I have read on a Voltmeter more than 14V. The transistor is a 2SK2974 which is rated at 7.4V.
I did a intensive internet search and found a compatibile transistor, PD 55008L-E which is available from Farnell retail distributor. I ordered one 10 days ago and yesterday I was to pick-up from the local representative. With a helping use from a good friend with steady hand, good eyes and, of course, a hot air SMD tool, I manage to repair this good radio. Now it displays on a PWR Meter about 7W on max power, 3.5W on medium power and around 1W for low power. And all on the stock battery, 7.6V/700mA FNB-64.
I was sad to "loose" it on receive only... I do not feel the urge to push the PTT but, who knows when need to?!?
Also, a known problem is the "howling" at big audio level on receiving. This is related to a mechanical contact between a IF filter and the radio's loudspeaker and the solution is well documentated on www.mods.dk.

The radio has the keyboard lighted but the inscription on the keypad tend to vanish after a long belt carrying. The same problem but worst I encountered on the TH F7 from Kenwood!
The menu is well driven, simple and very intuitive. As per a contrario, I never manage to use the IC-2100, the mobile radio from Icom just from kepad! Even with the user manual near me! Maybe something with my Yaesu commitement, though!

 

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Latest Message: 4 months, 3 weeks ago
  • robert: Salut faci cablaj si la comanda daca este proiectat in eagle ?
  • YO3IES: Patchul telefonic nu merge testat azi 06.01.2001 ora 21.30
  • YO3HJV: nu merge
  • YO3HJV: Azi, 09 dec 2009, incercam sa transmitem online QTC al FRR!
  • YO3HJV: Scanner online! Deocamdata, doar stream audio de la repetorul UHF al SRR! (438.8125 MHz)
  • YO3HJV: Pe site-ul www.asrr.org, in cadrul programului "Restitutio", am inceput postarea colectiei Tehnium! Sunt prezente in format elecronic, inclusiv almanahurile Tehnium!
  • YO3HJV: Repetorul CrossBand din Bucuresti pentru retranslatarea nodului Echolink YO3KSR-R este activ pe 150.550 MHz, CTCSS 203,5Hz.
  • YO3KSR: Am mai "tunat" nitel sistemul Echolink. In cazul in care dificultatile persista, avem in vedere unele interventii pe hardware.
  • YO4FKO: Am intrat pe echolink ( YO3KSR-R ) dar se pare ca este blocat pe emisie repetorul.
  • YO4FKO: Felicitari pentru tot ce faceti ! 73 !!!



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