Barry, I sent you a note off-line about the AN980 note I found but no
response. Maybe your anti-spam ate it. So I will repeat it here.
I found my copy of AN980 but its title is "VHF Narrowband FM Receiver
Design Using the MC3362 and the MC3363 Dual Conversion Receivers" dated
1988. It d
Does any have the hook up info to add a ID-8 id unit to a Motorola R-100
repeater?
thanks John
Why not do an entire article for repeater-builder? Something like
"A first-timer's experience at tuning a duplexer" ???
Just write it in Word, put your photos or diagrams in where you
want them, then zip up the word file and all the raw full-sized images
and email it to us
Mike WA6ILQ
At 08:
At 03:15 PM 4/6/2007, you wrote:
>Re: N Connector Motorola T1500 cavities
>
>If those N connector cavities make you crazy... send them on down to
>me Larry and I'll make sure they don't bother you anymore.
<---Damn Beat me to it.
Ken
--
Hector,
The CDR700 Repeater is simply a desktop cabinet that contains two CDM750
mobile radios, a power supply, a basic repeater controller, and a duplexer.
The Service / Programming Manual for the CDR700 is Motorola Publication
6864110R66, available from Motorola Parts for about US$13. You will
Hi all,
My old 80 MHz HP frequency counter shot craps, (Lites, but erratic display).
Does anyone have a link or scan of the schematic and possibly a parts list for
the HP-5381A?
Some of the IC's are factory numbered parts, I have not looked at the
NTE/SK/ECG crosses yet, no schematic :-(
Re: N Connector Motorola T1500 cavities
If those N connector cavities make you crazy... send them on down to
me Larry and I'll make sure they don't bother you anymore.
:-)
s.
[paste]
Five or six years ago, I bought a whole pickup truck load of surplus
4-cavity Motorola T1504A UHF duplexers
Hi folks, I am new in the group I am from Colombia and I am Electronic Engineer
between my new functions I have manager a Motorola repeater CDR700. Can
somebody help me about where I can find the manuals of the repeater and
information how I do the calculation of RF loss.
Thanks in advance
Burt Lang wrote:
> Hi Larry
>
> Remember me from the packet days of NEDA.
>
> You are confusing E F Johnson with Johanson Corp. E F Johnson do not
> make piston trimmers. of that type. The capacitors used in the Sinclair
> VHF Q-Circuit (BpBr) cans are 5602 Johanson caps. The key is the very
Thanks Kevin.
I Know that you & Skip are really sharp.( Thats the word ).take your
suggestions to heart.
AB8KD
Richard W W Bazell Jr wrote:
> Have An UHF repeater using PL259 Connectors on the Motorola T1501AL
> Cavitys, which has UHF connectors on them. There is no Desensing at all.
> Was thinking of replacing with N type connectors, but on second thought
> after reading your Comments. Think will not do.
In a message dated 4/6/2007 11:59:32 A.M. Pacific Daylight Time,
[EMAIL PROTECTED] writes:
The nightmare begins at 800MHz when you realize many of the
coax adapters and right-angles are really, really bad news.
Are they consistently bad news or does the Z bump vary from connector to
c
Motorola would supply the T1500 type cavities with both SO-239
(chassis mount female match to a PL-259) and N-Female chassis
mounts... I have
both in my colllection.
Through 500 MHz, I have no problem using the PL-259 cables and
connectors as supplied by Motorola.
The nightmare begins at 80
Thanks Skip. Appreciate the come back.
Yes Bob. They are the only ones I use on all my Equipment(Silver Plated)
On "T" I try to get Amphenal. They are getting very scarce.Haven't seen
an Silver Plated "T" connector however.
AB8KD
At 4/6/2007 09:49 AM, you wrote:
>Hi Skip,
>
>Interesting Comments.
>Have An UHF repeater using PL259 Connectors on the Motorola T1501AL
>Cavitys, which has UHF connectors on them. There is no Desensing at all.
Are they silver-plated?
Bob NO6B
In a message dated 4/6/2007 9:01:33 A.M. Pacific Daylight Time,
[EMAIL PROTECTED] writes:
A very quick summary of the end results... PL-259 Connectors are
not really the UHF horror story people might assume.
Skipp
I agree that the categorical dissing of the electrical characterist
The Denton TX radio club has 2 repeaters running those same cans. Makes
me choke, but like you said, no desense or any other problem that we can
see.
Richard W W Bazell Jr wrote:
>
>
> Hi Skip,
>
> Interesting Comments.
> Have An UHF repeater using PL259 Connectors on the Motorola T1501AL
> C
Hi Skip,
Interesting Comments.
Have An UHF repeater using PL259 Connectors on the Motorola T1501AL
Cavitys, which has UHF connectors on them. There is no Desensing at all.
Was thinking of replacing with N type connectors, but on second thought
after reading your Comments. Think will not do.
Wesle
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of skipp025
Sent: Friday, April 06, 2007 12:00 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: LMR feedline revisited and revised!
Ditto!
"Engineer-X" has his pooky in a pile
A very interesting read... however,
I have a good friend... one of the best RF Engineers I've ever met.
Former HP to Aglient guy now working for another big name company
doing serious rf and lightwave work. He took some time to out to run
through various rf connectors on the companies very hi
Jeff DePolo, Gary Schafer, Nate Duehr, and Burt Lang,
It is certainly interesting to read the widely diversified lack of
authoritative information on the subject of "constant impedance" and other
descriptions of the impedance characteristics of connectors used for RF, namely
PL259, BNC,
I've scanned the Spectrum Base/Repeater main manual into a
pdf file and sent a copy to Mike at the RB web page. You can
see if it's available for download yet.
If you can't find it yet... email me direct later on and I'll
try to get a copy of the same pdf manual to you.
The CW Prom ID'er Boa
Thank-you; it has been an interesting learning exercise for me.
For the detector, I actually used a little gadget box circuit that my
Dad had made up years ago. When I first found it (unlabeled) in his
electronics stuff, I didn't know quite what it was. Like so many
other little boxes he had, h
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