Re: LF: 70 MHz - 4 Mtrs - off topic

[brian hodgson <g3ykb@yahoo.co.uk>]

Hi Gary -

 

I've got a Yaesu FT847 - it covers all bands top band to 70cms but it is both deaf and low power on 4m. There is a simple mod listed on the web for increasing the output power (actually the problem is very low efficiency - only 10 watts for 17 amps dc !! - the mod is supposed to increase the efficiency). I believe the poor Rx sensistivity is due to routing the 4m sigs via the 6m filters. Some folk use a pre-amp. The Rx is also deaf at 136 kHz !! 

 

I think I've got the website listed somewhere - I'll dig it out if you want to take the idea further.

 

73 Brian - G3YKB

 

Gary - G4WGT <g4wgt@tiscali.co.uk> wrote:

> Hi All,
>
> Sorry for the "off topic" subject. Just
>  curious at the moment if anyone
> knows if there is any HF/VHF/UHF multi-mode transceiver has or can be modded
> to Tx/Rx on the 70MHz/4 metre band.
>
> 73
>
> Gary - G4WGT

---

The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider.