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ZL3AI > APRDIG 24.05.04 22:14l 272 Lines 9311 Bytes #999 (0) @ WW
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Cheap HT recommendations
From: "Scott Miller" <scott@opentrac.org>
Date: Wed, 19 May 2004 09:28:18 -0700
X-Message-Number: 11
I've got various projects (mostly weather stations) in the works that'll
need cheap transmitters. I've had good luck with the Alinco DJ-S11T, but
the 4.5 volt input is inconvenient, and there's no way to disable the RX
powersave mode. The DJ-F1T runs off 9 to 12 volts, but the connectors are
on the side, and the power connector in particular is flaky. Anyway, my
requirements are:
- Cheap and readily available (e.g., on eBay)
- Operates on 9 to 12 volts
- 'Hard' power switch so it can be relay-controlled
- 1-watt output minimum, 5 watts preferred
- BNC antenna connector
- Standard 2.5/3.5mm audio connectors
Again, I really wish someone made a simple, cheap OEM brick transceiver for
this sort of thing. Worst case, I'll probably see if I can pick up some
more DJ-F1Ts and hot-glue the connectors in place or gut them completely.
They're not the most common rigs out there, though.
Because of the receive current requirements, a power relay is going to be
required so the stations can be run off a reasonably sized solar panel.
This rules out a lot of radios with 'soft' power buttons. Also, if anyone
has any suggestions on which radios tolerate frequent power switching
better, let me know.
And before anyone brings up the PocketTracker, I'm already familliar with
it, and already have one (smells like cinnamon). For my purposes they're
too expensive, I'd have to saw the TT3 off, and the assembly takes too long.
They're neat, but not what I need in this case.
Thanks...
Scott
N1VG
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Subject: Re: Cheap HT recommendations
From: "Scott Weis" <kb2ear@kb2ear.net>
Date: Wed, 19 May 2004 12:41:53 -0400
X-Message-Number: 12
What about the MFJ Dataradio?? It's sorta cheap $xxx, and is a brick. 5 wats
out, run on 12V
See: http://www.mfjenterprises.com/products.php?prodid=MFJ-8621X2
Scott
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Subject: Re: Cheap HT recommendations
From: "Scott Miller" <scott@opentrac.org>
Date: Wed, 19 May 2004 09:44:47 -0700
X-Message-Number: 13
By all accounts, it sucks. I saw that some time back, and thought about
getting one, but folks here talked me out of it. Besides, HTs frequently go
for $50 or so on eBay - I could get three for the price of one MFJ.
Scott
N1VG
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Subject: Re: Easy Manual Position reporting for events.
From: wes@johnston.net
Date: Wed, 19 May 2004 13:23:38 -0400 (EDT)
X-Message-Number: 14
So how is APRSTT coming along? I haven't heard a thing about it for nearly 2
years.
Wes
ham callsign: kd4rdb
find me: http://wesvan.zapto.org
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Subject: Re: Newbie Info Wanted
From: "Richard Amirault" <ramirault@erols.com>
Date: Wed, 19 May 2004 13:30:03 -0400
X-Message-Number: 15
----- Original Message -----
From: "William Bennett"
Subject: [aprssig] Newbie Info Wanted
>I have a Kenwood D700 and it has been up and running, but now I want back
>the use of my 2nd channel so I can use both sides of my radio instead of
>dedicating one channel to APRS.
>
>If I wanted to get a dedicated 2m radio for this, other than my GPS, what
>all would I need to get? If there a FAQ or a paper that can tell me where
>I need to go and learn all I need? I wanted to get a radio/GPS/whatever
>setup so that it is dedicated to sending out my APRS info and I can "let it
>run". I would like to be able to interface a computer to it sometimes and
>"see what is happening".
You already have a D700, and you are using it for APRS. The "2nd channel" on
the D700 can be used at the same time the "1st channel" is being used for
APRS. The second channel can be used for UHF or VHF (any memroy channel ..
they are shared on both sides)
So the only thing you are "loosing" by using a D700 on APRS is receiving two
band/stations at the same time. If that's what you want, OK ... but it
seems a shame to not use the D700's capibilities for APRS .. only for
"regular" VHF, UHF. and go instead to a dedicated 2 meter APRS radio/ TNC
Richard Amirault Boston, MA,USA
N1JDU
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Subject: RE: Easy Manual Position reporting for events.
From: "Jim Andrews" <jim@stuckinthemud.org>
Date: Wed, 19 May 2004 19:05:29 +0100
X-Message-Number: 16
Hasn't someone already done an add-on for this?
I seem to remember some messages about it last year.
Jim, G1HUL
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Subject: Re: Cheap HT recommendations
From: David Rush <david@davidarush.com>
Date: Wed, 19 May 2004 12:13:56 -0600
X-Message-Number: 17
Scott Weis wrote:
>What about the MFJ Dataradio?? It's sorta cheap $xxx, and is a brick. 5 wats
>out, run on 12V
>
>See: http://www.mfjenterprises.com/products.php?prodid=MFJ-8621X2
>
>Scott
Requires whatever it's plugged into to have carrier detect, as it only
delivers unsquelched audio out. Assuming Scott wants to plug it into a
TinyTrak, it wouldn't work. KPC-3 might work... don't they have
"software carrier detect" as an option?
I applaud MFJ for trying to build a product that people want, but the
price is way out of whack. You can get a full-power, tunable mobile rig
for less. According to the MFJ's specs, it's got some notable
advantages over a general-purpose voice radio, but as another poster
said it's been discussed here before with less-than-stellar reviews.
MFJ: increase the power (10? 25 watts?) and cut the price in half, and
you'd sell a zillion of them.
David, ky7dr
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Subject: Cheap APRS radio
From: John Kraus <flyfisher452@cox.net>
Date: Wed, 19 May 2004 14:57:10 -0400
X-Message-Number: 18
Scott and the group
The Icom IC T2H sport is a good choice. I am using one with a TTII built
into the AA battery shell as a tracker in my wife's car. I bought two the
last time they were on sale for $xx.xx at xxx.
Get an extra AA shell and it is easy to revert to HT use. I power both
the GPS, radio and TTII via the same Powerpole that I glued to the back of
the AA shell. Power input is 9.6 volts nominal I used three 6 amp diodes to
drop the voltage; for a car tracker it works ok. I am getting 1 watt on
low and 6 watts on high. I plan to add a Deluo GPS to a future backpack
for hiking.
With its roots in mil spec gear the radio is very rugged. Except for the
belt clip which I epoxy to the extra shell on arrival. The clip is tough
the attachment is junk. My view is that < $100 is ok for a new frequency
agile 6 watt transceiver.
xxxxxxxxx and xxx are listing them for $xx. AES is at $xx. This is a good
radio although it has one drawback in that the squelch is menu set and not
very immune in high RF environments.
Note that these are new prices and should be much less on Ebay or the
Hamfest table.
It does meet Scott's specs.
- Cheap and readily available (e.g., on ebay) not sure about ebay did not look
- Operates on 9 to 12 volts
- 'Hard' power switch so it can be relay-controlled
- 1-watt output minimum, 5 watts preferred
- BNC antenna connector
- Standard 2.5/3.5mm audio connectors
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Subject: Re: Cheap APRS radio
From: Jeff King <jeff@aerodata.net>
Date: Wed, 19 May 2004 14:17:42 -0500 (CDT)
X-Message-Number: 19
Quoting John Kraus <flyfisher452@cox.net>:
>The Icom IC T2H sport is a good choice.
...
>It does meet Scott's specs.
>
>-Cheap and readily available (e.g., on ebay) not sure about ebay did
>not look
>-Operates on 9 to 12 volts
>-'Hard' power switch so it can be relay-controlled
>-1-watt output minimum, 5 watts preferred
>-BNC antenna connector
>-Standard 2.5/3.5mm audio connectors
And don't forget it also has a reciever, which is critical in a CSMA
enviroment, such as APRS, to help avoid local collisions.
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Subject: Re: Newbie Info Wanted
From: "Robert Bruninga" <bruninga@usna.edu>
Date: Wed, 19 May 2004 15:25:42 -0400
X-Message-Number: 20
Configured for APRS Voice alert, you really get 3 simultaneous uses from the
D700:
1) APRS on Band A (and silent)
2) Anything you want on side B
3) APRS Voice alert on side A using CTCSS 100.
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Subject: Re: Newbie Info Wanted
From: "Eric H. Christensen" <kf4otn@earthlink.net>
Date: Wed, 19 May 2004 16:47:29 -0400
X-Message-Number: 21
And, I might add, that the scan function works really well so you can
monitor multiple channels at the same time on SIDE B while keeping SIDE A
for APRS.
Eric KF4OTN
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Subject: RE: Cheap HT recommendations
From: "Cap Pennell" <cap@cruzio.com>
Date: Wed, 19 May 2004 13:53:36 -0700
X-Message-Number: 22
Radio Shack HTX-202 (discontinued) ?
http://search.ebay.com/htx-202
73, Cap KE6AFE
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