--- In Repeater-Builder@yahoogroups.com, Doug Rehman d...@... wrote:
[...]
I agree about the survivability of folded dipole arrays, but they don't seem
to be an option at 900 MHz- at least I don't see them in commercial catalogs
and have never encountered an 800 or 900 MHz.
I didn't see any mention of it being a folded dipole. The picture certainly
doesn't look like it is. No mention that it is even DC-grounded.
Chuck
WB2EDV
- Original Message -
From: larynl2 lar...@hotmail.com
To: Repeater-Builder@yahoogroups.com
Sent: Monday, November 02, 2009 11:43
it is possible and if it is how can i use one dual band antenna vhf/uhf with
two aprs digipeaters at the same time??? first aprs digipeater 1200bps
144.800mhz second aprs digipeater 9600bps 438.100mhz!! it is possible??? two
tranceiver in differend band with one antenna dualband?? thanx
We had a similar problem using a Kenwood radio with switching or pin diodes
that was on APRS. The repeater and the APRS radio were on DB224's very close to
each other. The repeater has 6 cans and the aprs had 1 band pass can. Neither
system interfered with the other but we soon discovered we
The Telewave catalog does a poor job of describing the antenna; take a look
on the write up on page 5 of this PDF:
http://www.talleycom.com/PDF/%20TSQ2_09.pdf
The picture there shows that it is indeed a folded dipole.
Unfortunately the antenna is too heavy for my application- 7 pounds for 6dB
I suspect that the photo used was generic as they talk about antennas from
VHF low band right up through. In any event, for your application, it's a moot
point.
Chuck
WB2EDV
- Original Message -
From: Doug Rehman
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, November
I have a very clean Kendecom Mark 4 VHF repeater for sale options include voice
and autopatch. Presently on 145.390 with a pl tone of 151.4hz. The repeater has
been bench tested and preforms to factory specs.
David Epley, N9CZV
Winchester, IN
dipexer
just like if you had 2 radios in you car
dual band radios have then built in
On Tue, Nov 3, 2009 at 9:11 AM, asterios sv2...@yahoo.com wrote:
it is possible and if it is how can i use one dual band antenna vhf/uhf
with two aprs digipeaters at the same time??? first aprs digipeater
Rick is on the right path: DIPLEXER
This is what is used to separate/combine two different frequency
spectrum into/from one feedline/antenna
Simply wire it up like this:
144.800 --VHF Port--
\
Diplexer --- Dual-Band Antenna
/
Sure makes it look easy...
Richard
http://www.n7tgb.net/ www.n7tgb.net
When they call the roll in the Senate,
the Senators do not know whether to
answer 'present' or 'not guilty.'
--President Theodore Roosevelt (1858-1919)
_
From: Repeater-Builder@yahoogroups.com
the diplexer whose also my idea and it is also cheap!! but dualband radios with
internal diplexer never tx doth bands at the same time!! something that digis
will do!! there is a problem with this??? at the same time tx in differende
bands??? two radios one diplexer one dualband antenna!!
I received the below text from a non group member... who
was at one time very active in Amateur Repeaters.
His opinion and some technical ideas...
enjoy,
s.
[pasted text]
In my repeater days I went both ways. Started by wanting
to add anything that showed the repeater to be more
You can TX on both bands at the same time through a diplexer. It does not
matter as long as you don't go over the rated Max power for the two.
I have run 50watts on both bands through a diamond diplexer without any
problems (was using two single band radios)
This was then fed into a dual-band
Or those of us with brachial plexopathy
Chris
Kb0wlf
Good video though!
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Matthew Kaufman
Sent: Tuesday, November 03, 2009 2:23 PM
To: Repeater-Builder@yahoogroups.com
At 11/3/2009 11:05, you wrote:
I love the notion of the courtesy beep as a diagnostic tool, provided it
doesn't distract from the content of the traffic. When I was working on
repeaters for the Blue Ridge Amateur Radio Society in the Carolinas in the
'80s, we were transitioning to CTCSS, but
Hello, I just got a bunch of maxtrac 300 radios from a friend. I also found a
cross-band repeater cable that I had sitting in a pile. I started playing
around, I programing 2 radios as repeaters, hooked the cable up and nothing.
The recieve radio indicates it's receiving but does not PTT the
I am getting all the materials for a 6 meter repeater, but am hung up on a
solution for a duplexer. I have seen several paces showing how to make a notch
duplexer with heliax made into 1/4 wave stubs. Since I am unable to locate any
large heliax,I was wondering if copper tubing could be used
If you have the time, this is a killer video worth
watching.
http://www.curiousinventor.com/guides/Surface_Mount_Soldering/101
enjoy,
skipp
I recall the repeaters of the ACC era, how the overused bells and whistles were
viewed as advanced, and how so many repeaters coast-to-coast had no
individual personalities, only those same canned TI voices and LOUD three-tone
courtesy beeps. I also recall how funny it was to hear the male and
jerry i have 5 6209 sponders $5 ea+ post
skipp025 wrote:
If you have the time, this is a killer video worth
watching.
http://www.curiousinventor.com/guides/Surface_Mount_Soldering/101
Alas not many hints in there for those of us with Essential Tremor.
Matthew Kaufman
Use 3/8 which has an outer diameter of .500 for the inner conductor.
Use 1 1/4 Type M which has an inner diameter of 1.289.
Should be close to 98% velocity factor.
I don't know if home depot carries the 3/8, but a 10ft stick of 1
1/4 was $36 last I checked.
On Tue, Nov 3, 2009 at 1:14 PM,
I have a need for a 420/425 MHz 6 db or more gain omni antenna for a hub
linking site.
The site is covered in ice and snow for 6-7 months a year and accessible only
by snow cat during those times.
Anyone have anything lying around they would like to sell?
Whats everyone's favorite antenna for
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