With field day coming around the corner, I took the time to work on my spare G5500 rotor setup. I knew from earlier this year, I had to put my spare azimuth rotor to replace the one that stopped working.
I took the Azimuth rotor apart and come to find out that it seems the nylon gear that is attached to the motor itself is slipping big time. I can manually move the other gears and they seem to be working fine.
I will take the rest of the rotor apart tomorrow, but I was wondering if anyone else has come across this problem??? Since I am unable to see without taking the rest of the rotor apart, anyone know how this gear is attached to the shaft of the motor?? Anyone have any ideas where I might get another gear if necessary??
I see why Yaesu will only sell the whole motor attachment know for 200.00 plus dollars.
73 de Angelo
Angelo,
I have a spare G5500 azimuth rotor. I can ship it to you to use for field day. Just return when finished.
73, Jeff - K7WIN
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Angelo Glorioso Sent: Saturday, April 24, 2010 4:10 PM To: AMSATBBS Subject: [amsat-bb] G5500 Rotor Problems
With field day coming around the corner, I took the time to work on my spare G5500 rotor setup. I knew from earlier this year, I had to put my spare azimuth rotor to replace the one that stopped working.
I took the Azimuth rotor apart and come to find out that it seems the nylon gear that is attached to the motor itself is slipping big time. I can manually move the other gears and they seem to be working fine.
I will take the rest of the rotor apart tomorrow, but I was wondering if anyone else has come across this problem??? Since I am unable to see without taking the rest of the rotor apart, anyone know how this gear is attached to the shaft of the motor?? Anyone have any ideas where I might get another gear if necessary??
I see why Yaesu will only sell the whole motor attachment know for 200.00 plus dollars.
73 de Angelo
_______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
When I needed to replace the pot in my AZ rotor I contacted Yaesu a this phone number and found them most helpful. I ordered the pot and a few spares and replaced it without problem. Maybe you could give this a try. It might work out for you as well.
73's << john
Parts Department (Manuals, Parts 8 am - 4 pm PST): 1-714-827-7600 parts department (562) 404-2700 (562) 404-4828 FAX Email : [email protected]
On Sat, Apr 24, 2010 at 7:09 PM, Angelo Glorioso [email protected] wrote:
With field day coming around the corner, I took the time to work on my spare G5500 rotor setup. I knew from earlier this year, I had to put my spare azimuth rotor to replace the one that stopped working.
I took the Azimuth rotor apart and come to find out that it seems the nylon gear that is attached to the motor itself is slipping big time. I can manually move the other gears and they seem to be working fine.
I will take the rest of the rotor apart tomorrow, but I was wondering if anyone else has come across this problem??? Since I am unable to see without taking the rest of the rotor apart, anyone know how this gear is attached to the shaft of the motor?? Anyone have any ideas where I might get another gear if necessary??
I see why Yaesu will only sell the whole motor attachment know for 200.00 plus dollars.
73 de Angelo
Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
I have the Bias-T units from Array Solutions, but these are intended for 160-6M (I presume because of component losses at higher frequencies).
What are folks using to power mast-mount preamps?
Mark Lunday WD4ELG
Hello Mark,
For my SSB Electronics preamps, I use their DC injector with sequencer. Model DCW-15 SHF, for the 1.2 GHz mast mounted preamplifier.
For others I use a Down East Microwave DC injector. Like their model BT-H for 900 MHz. It has a higher RF insertion loss at 2M, where it is not designed for, ~ 1-2 dB
I believe DC injectors are also made by ARR and SUHNER.
Some call them a bias tee, but they are still DC injectors/extractors.
They are a 3 port device, 2 RF ports for your frequency, one with DC, one without. The third port is for the DC connection, either injection or extraction. The 2 RF ports are capacitively coupled for the DC isolation. The DC port is connected thru a choke directly to the RF port that needs the DC. Not too hard to build, but the factory made connectored boxes are handy.
On one system I use the spare conductors in the AZ/ELcontrol cable for polarization switching, PTT and DC power for the stuff on the tower.
My Yaesu G5400B only uses 6 of the 8 conductors in the control cable. 6 for AZ and 6 for EL = 4 spares. 2M pol select, 70cm pol select, common PTT (ground to TX), and DC power. For signal and DC return, I use the big black conductor in the 8C cable. You may consider another spare wire for signal return.
Stan, W1LE Cape Cod FN41sr
ZZZZz
On 4/25/2010 12:14 AM, Mark Lunday wrote:
I have the Bias-T units from Array Solutions, but these are intended for 160-6M (I presume because of component losses at higher frequencies).
What are folks using to power mast-mount preamps?
Mark Lunday WD4ELG
Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
participants (5)
-
Angelo Glorioso -
John Price -
K7WIN - Jeff -
Mark Lunday -
Stan, W1LE