[TenTec] T-T vacuum relays at 50 MHz?

Rick Williams rick.williams at telus.net
Wed Dec 28 00:39:17 EST 2005


I am in the process of setting up my Orion to operate with a 6 metre
transverter.  The transverter will be coupled to a SteppIR 3-element antenna
for both HF and 6 metres.

My plan is to connect the transverter to ANT2 on the Orion and then switch
the transverter into my antenna system.  Currently this switch point is used
for the Argo V and Orion ANT1.  The switch will be a 4-position Alpha/Delta
good to 500 MHz.

After the switch point, the RF path goes to my Herc II and T-T 253 tuner.
For 6 metres of course both the Herc and the 253 would be off, in the bypass
mode.  Internally this would see RF come into the Herc or 253 and bypass the
electronics through a normally closed vacuum relay contact.

Now the question.  Should I be at all concerned with the capability of these
vacuum relays to handle 50 MHz signal without significant loss?  (Again, in
both devices the relays would be OFF and not switching 50 MHz RF.)

Thoughts appreciated.

73, 

Rick 
VE7TK

Website:  http://www3.telus.net/ve7tk  




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