Wally,
Sorry I'm not watching Cruiser's Forum every day.... so, here are your answers:
The FT-747 is a 30-yr old, basic entry-level HF ham rig....(similar to the old IC-725).
{FYI, unless you have a need for e-mail access when at sea / on passage / away from shore (such as you run a business while out cruising), then it's doubtful you'd ever need a PACTOR modem and I'd not recommend one....but, you are asking about one...so...}
If you already have the FT-747, it works, and you like using it...well then no worries, go ahead and use it on your
boat too...but..
But, remember a few things:
a) it's old
b) it's an older basic
radio, with a rather poor main oscillator (noisy)...and no RF Gain control means the radio's receiver is run "wide-open" all the time, unless you switch in the attenuator...(and with the bottoming-out of the
solar cycle next year or two, and three, the lower bands will be where you'll be doing much of your operating, and these have much higher natural
noise, so a radio with an RF gain control is nice....but, you'll be able to use the ATTenuator to help)
c) it's transmitter is not designed for the
commercial marine bands, and as such does not produce as clean of a signal (this alone may make you unfriendly on the
marine bands, and I'd not recommend using it there....oh yeah, it's illegal, too)
d) You may have a mic / rec-audio cable to allow use of the radio with an old packet modem?? (if not you will need one to interface to a PACTOR modem, if you were considering that...) And, while it might
work with a PACTOR modem, it's not a high-duty cycle radio, and would need to be concerned about
overheating / overdriving it...(and, I don't think it's on the Sailmail approved list??)
e) its rather odd "plastic case", although supposedly metallic-infused, makes me leery of RFI issues on-board??
f) unless you have the old FC-1000
remote tuner (and interface module for it), you would need to buy a generic
remote tuner (such as an SGC-230, which has had some QC issues over the past few years)
g) I don't believe it has any speech
compression / speech processor (a good thing not to have in a basic radio...but a feature that would make your signal much louder n easier to copy, when used with compromise antennas, etc.)
As for
specifics...
Quote:
Originally Posted by wallythacker
I happen to own a ft-747 with all the options, FM board and stabilized oscillator. It's also capable of continuous transmission from 500kc-30mhz.
With the solar cycle on the steep decline, 10m is dead (or will be) most of the time....so, no need to worry about any FM activity for the next 3 years or more...
High-stability osci is good....but remember this old rig's osc are rather crude / noisy, making the radio's rec nosie-limited in some crowded conditions (as well as not so good for cw and some digital modes), yes it works, just not really close to state-of-the-art
Continuous transmit coverage is okay for emergencies or an occasional jaunt to talk to a friend for a minute, but since this radio's transmitter isn't as clean as a marine radio, you will probably be interfering with someone on an adjacent channel/freq...so, I highly advise against it...[btw, this is personal peeve of mine...I won't ramble on here, but please buy a marine radio for the marine bands]
And, except in emergencies, it's illegal..
I'd hate to abandon this radio as it is in mint condition and always been serviced every few years. I assume it will work with a Pactor modem as I had it working with other packet modem products, the Tiger modem was one.
It's highly doubtful, you'd need a PACTOR modem....but see above for details...
Is my FT747 any good for a boat installation?
Aside form my concerns of its RFI susceptibility and its age, the 747 is a good "mobile" radio, and actually works fairly well on "battery voltages" (12vdc to 12.6vdc), where some ham rigs (most modern ham rigs) fail completely, as they need at least 13vdc to actually work well...
Email?
See above for details..
SSB chatting?
On the ham bands, sure!
On the marine bands, NO!!
Emergencies?
Depending on where you are sailing, and how good of a radio operator you are, and your knowledge of radiowave propagation....it might be okay for emergencies....just all depends...
But, would I recommend this radio (or any ham rig) for this propose? NO...
Weather reports?
Yes, it will work okay for Voice weather broadcasts...and with an interface to a laptop or tablet, you can get some nice WeFax images...
(again, please remember my caveats about RFI....and where you are sailing, and how good of a radio operator you are, and your knowledge of radiowave propagation...)
|
Notice, I didn't mention
DSC?
MF/HF-DSC is an important part of the GMDSS, and no ham radio has it...please read more and watch the videos for lots of info...
I think the above answers all your questions regarding this specific radio??
So...
So, now please have a look at these "stickies" and watch these videos!!
They will help you a LOT!
http://www.cruisersforum.com/forums/...tc-133496.html
http://www.cruisersforum.com/forums/...tc-198305.html
http://www.cruisersforum.com/forums/...on-169164.html
http://www.cruisersforum.com/forums/...ds-146617.html
http://www.cruisersforum.com/forums/...os-141406.html
HF-DSC Comms
https://www.youtube.com/playlist?lis...ga2zYuPozhUXZX
Maritime HF Comms
https://www.youtube.com/playlist?lis...ZDo_Jk3NB_Bt1y
Offshore Weather
https://www.youtube.com/playlist?lis...zdjTJjHlChruyY
VHF-DSC
https://www.youtube.com/playlist?lis...J6QugtO2epizxF
Icom M-802 Instructions
https://www.youtube.com/playlist?lis...rC-8QKVyMb4tVr
I hope this helps.
Fair winds.
John
P.S. I've done a new video on radiowave propagation and freq/channel choice....and I'm going to do another (simpler)
DSC video and show two radios in DSC comms with each other simultaneously....hopefully I'll have time next month?? And, I'll post here on CF when I get 'em uploaded...