Re: International crystal manufacturing
Correction, UTC + 1 -- - Regards, Karl Shoemaker To contact me, please visit SRG's web site at http://www.srgclub.org for the current email address.
By
Karl Shoemaker
·
#195770
·
|
Re: International crystal manufacturing
So, not to be stupid,? my complete keystrokes on my desk pad would be (come off hook, of course)? 01 31 229 230 044 ? If so, I can't believe I missed that crucial step, considering my background.?
By
Karl Shoemaker
·
#195769
·
|
How Many Have Done SPD/ACPR Testing?
This is an informal survey prompted by the recent bandwidth discussion. There are over 5000 members of this list including many highly technical people. Some of you must have done this testing.?
By
nj902
·
#195768
·
|
Re: International crystal manufacturing
All, Since paper telephone directories are more rare than a chicken with teeth, the internet is your friend. To dial any telephone number FROM the U.S. (international phone call) the first digits you
By
David McBrayer <david.mcbrayer9@...>
·
#195767
·
|
Re: Voter Systems
Wow-they want WAAAY too much for those! I can't see going much above $100 for one... And the one on top in the bottom pic is just a cage with some MastrII cards in it. None of those are for the voter.
By
Jim Barbour
·
#195766
·
|
Re: Voter Systems
That seems reasonable enough. I've yet to find a radio (or band) that I could use to run something continuously like that. Seems it would eventually eat PAs. Like trunked control channel repeaters
By
Chris Baldwin
·
#195765
·
|
Re: Voter Systems
Em, not completed yet. I'll take one of a 2RU box that is nt a drawer, but has the din rails. Soon. Tom K8TB
By
K8TB
·
#195764
·
|
Re: Voter Systems
Zero hangtime?? Nope..I found ~200-400ms max is needed...mobile chop causes the link to go rapidly off/on etc.. horrible...a SHORT hangtime on links smooths out everything.. or just run the link
By
Chris Boone WB5ITT
·
#195763
·
|
Re: Voter Systems
Best way to do it is use a regular crossband type configuration at the receiver site. For example, VHF receiver hooked up to a UHF transmitter. Zero hangtime. At the voter site, use a UHF link
By
Chris Baldwin
·
#195762
·
|
Re: International crystal manufacturing
Or you could forget temperature compensation and use a crystal heater - way more stable than temp. comp. http://www.masterscommunications.com/products/ch/ch25.html Chuck WB2EDV
By
Chuck Kelsey
·
#195761
·
|
Re: International crystal manufacturing
Bomar?? Oh hell no....poor quality...I threw anything from them away...
By
Chris Boone WB5ITT
·
#195760
·
|
Re: International crystal manufacturing
If you have a lot of patience, and a lot of channel elements, I have had good success with just swapping the Xtal into an element that has good stability across the temperature range (~10f to 100f) I
By
wj9jrg
·
#195759
·
|
Re: International crystal manufacturing
Hi Karl, Have you tried?Bomar Crystal Company?? ? http://bomarcrystal.com/index.html ? 117 William Street PO Box 10 Middlesex, NJ 08846? + 1 (732) 356-7787 + 1 (800) 526-3935 FAX: + 1 (732)
By
Pamela - N1ZKH
·
#195758
·
|
Re: Voter Systems
I have a project with a voting system and wondered if there is a cheap way of transmitting this 2175Hz tone from a remote site? was gonna do microwave, but thats too expensive no internet at this
By
MILLIN SEE
·
#195757
·
|
136-174 VHF Amp for sale
RF Technology IPPA150Q 180 watt continuous duty VHF (136-174 MHz) repeater amplifier. 1-3 watts in adjustable output to 180 watts. Built in 45 Amp power supply. 120VAC input, 19" 2RU rack mount.
By
James Kossow
·
#195756
·
|
Re: Two UHF repeaters sharing the same antenna.
I built this for two repeaters that share a single antenna 444.5TX, 444.7TX and 449.5 RX and 449.7 RX. I used 2 8¡± BP cavities on each TX with a two stage isolator and 3 4¡± BP cavities for the RX
By
James Kossow
·
#195755
·
|
Re: Voter Systems
Hey, you're talking about some of my best work! You forgot to mention lots of clip leads. (I was once chastised by WB8MCS who told me, "No clip leads on the repeater!" That was back with tube
By
Mike Naruta AA8K
·
#195754
·
|
Re: FS LDG voter RVS-8
JLPCB offers small-batch boards and SMD installation at pretty reasonable prices these days. I wish it was a US company but until someone in the US starts up a similar business that is what we are
By
Dan Woodie
·
#195753
·
|
Re: Voter Systems
Tom, A picture is worth a thousand words. Do you have one you feel comfortable sharing? 73 and aloha, Eric KH6CQ
By
Eric Grabowski <ejgrabowski@...>
·
#195752
·
|
Re: Voter Systems
Jeff, Those perf-boards and? a PL decoder here and a PL decoder there get away from you. I am rebuilding the Holland (Mi) repeater systems. New cabinet and some nice Quantars and MTR-2000's. A Doug
By
K8TB
·
#195751
·
|