going to use something like this on the bulkhead. You can get them in almost
any connector. So I am not really set on any particular connector.
it would be patch cable from the TM to the bulkhead. (I think I prefer
sma)
http://www.datapro.net/products/sma-panel-mounting-coupler.html
yes the edge mount PCB sma, does work on the TM, at one time you could order
them with that option. I really think this will put me back in the game.
Wasn't sure if that short "wide band" duck would be worthless at altitude
for packets. I think I can make any of those work. My longer... or oops my
wifes, 4" darkstar, I fly a 8000ns (42")case in, the 14" whip would go
nicely in the 1/4" bettween the motor and airframe!... but md rockets you
cant do that.
The other option would be stainless braided cable, like waltson trackers
use. I cant seem to "make my own" antenna... I think I always get the length
off just enough that the signal doesn’t go very far. like no packets on the
launch pad. I am able to verify ignitor continuity and battery during prep
though and is nice. the stainless seems to stay strait fairly decently while
being bendable...
I just use the becon rdf method. 20k abouts...nice tone....
-----Original Message-----
From: Kurt
Sent: Sunday, August 31, 2014 7:13 PM
To: Altus Metrum
Subject: Re: [altusmetrum] Selecting an antenna
Clay,
All those antennas have a different connector on them. When you make
your final choice,
were you going to pick a bulkhead connector pigtail?
Something like this?
http://www.ebay.com/itm/cable-SMA-male-plug-to-SMA-female-jack-bulkhead-straight-RG174-6-pigtail-FPV-/281108847574?pt=US_Radio_Comm_Coaxial_Cables_Connectors&hash=item4173649bd6
Nix the antennas from the baofeng radios as that would take a funky bulkhead
connector.
The PL256 is pretty big..
You could consider an RP-SMA PC board connector but you'd have to order your
bulkhead connector
accordingly:
http://www.ebay.com/itm/PCB-PC-Board-Panel-Mount-RP-SMA-Female-Straight-Solder-Receptacle-Connector-New-/261127436055?pt=LH_DefaultDomain_0&hash=item3ccc687717
As opposed to the female SMA the Beeline trackers use:
http://www.ebay.com/itm/5-Pcs-SMA-Female-Jack-Edge-Mount-PC-Board-PCB-Receptacle-Adapters-Connectors-New-/170703945976?pt=LH_DefaultDomain_0&hash=item27bebf80f8
I don't know what the edge of the PC board looks like on the telemetrum.
Can one solder an SMA socket like the ones above to the board? If so, would
make cabling a little easier.
I have one of those HH-S518 on an aft ebay bulkhead on a 3" Wildman I
stretched the length and also
used a 10" tube for the ebay. I painted the rocket metallic so I didn't get
any packets at 10k' altitude.
I routed a connector to an SMA bulkhead socket so like you, the antenna
would be exposed at apogee.
I haven't done a range test yet but I think it will be fine. The long
antennas will likely get dorked when the rocket lands plus you gotta have a
long sustainer to house them.
WHOA........ I just found this one:
http://www.ebay.com/itm/Golden-Omni-TPEE-10W-UHF400-470MHz-Soft-Handheld-Radio-Antenna-SMA-M-Male-/181384375740?pt=US_Radio_Comm_Antennas&hash=item2a3b59edbc
I'm going to order a couple. Looks promising even if the aft end hits, the
wire spring will likely
take it. Only thing is the all important range check.
Kurt KC9LDH
--------------------------------------------
On Sun, 8/31/14, Clay and Carly Dunsworth <[email protected]> wrote:
Subject: [altusmetrum] Selecting an antenna
To: "Altus Metrum" <[email protected]>
Date: Sunday, August 31, 2014, 12:37 PM
My last flight pulled my whip antenna from my
telemetrum, so I am going to
put an sma connector on it. (it’s a – patchwork
fix I am rather good at by
now.) No use throwing away a 300.00 board cause of
missing pcb
trace...
I have decided to mount an antenna on the aft bulkhead
so it is exposed at
the apogee. I came across this and wondered if anyone
has used one of
these?
http://www.ebay.com/itm/Dual-Band-VHF-UHF-SMA-M-145MHz-435MHz-Antenna-for-Radio-YAESU-VX-3R-VX-6R-VX-7R-/171297005651?pt=US_Radio_Comm_Antennas&hash=item27e218e053
The other option are these whips. they are sma or
pl259(which might be
better...?_
14.4”
http://www.ebay.com/itm/High-Gain-14-4-SMA-Female-Dual-Band-Antenna-for-BAOFENG-UV-5R-UV-5RA-UV-5RC/400638072298?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D23490%26meid%3D7a0bc47888e3483f8b4e54b3899e943f%26pid%3D100005%26prg%3D10073%26rk%3D2%26rkt%3D6%26sd%3D131180602475&rt=nc
7.56”
pl259
http://www.ebay.com/itm/10W-uhf-400-470mhz-black-short-car-amateur-radio-antenna-pl259-male-connector-/321260637411?_trksid=p2054897.l5665
sma
http://www.ebay.com/itm/SMA-F-Dual-Band-UHF-Antenna-144-435MHz-for-BAOFENG-BF-666S-BF-777S-BF-888S-/131162111054?pt=US_Radio_Comm_Antennas&hash=item1e89defc4e
cheap enough to buy all 3, but the stubby ducky would
be good in my minimum
diameter rockets that have almost zero room.. wondering if
anyone has used them
with any success and can advise on how they compare.
-
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