Satellite Internet forum

Satellite Internet forum
https://www.satsig.net/cgi-bin/yabb/YaBB.pl VSAT technology and installation >> iDirect Forum: hubs and terminals >> Pros and cons of 1:1 service on TDMA VS SCPC https://www.satsig.net/cgi-bin/yabb/YaBB.pl?num=1259762860 Message started by nkast on Dec 2^nd, 2009 at 2:07pm

Title: Pros and cons of 1:1 service on TDMA VS SCPC
Post by nkast on Dec 2^nd, 2009 at 2:07pm

Hi,

I have been recently offered an SCPC price and 1:1 service for similar location with lots of price difference. Which will be best to choose?

Title: Re: Pros and cons of 1:1 service on TDMA VS SCPC
Post by sdanishsaleem on Dec 3^rd, 2009 at 5:57am

it really depends on your bandwidth need , how many sites do u have and how much bandwidth u require on each site ?

Title: Re: Pros and cons of 1:1 service on TDMA VS SCPC
Post by TDMAMike on Dec 3^rd, 2009 at 11:45am

SCPC or iSCPC?

The obvious advantage that SCPC has over 1:1 TDMA service is the fact that there is less satellite overhead associated with SCPC. �iDirect TDMA will have said overhead (BTPs contained in the forward carrier and TDMA Headers, trailers, etc associated with the upstream carriers). �

Title: Re: Pros and cons of 1:1 service on TDMA VS SCPC
Post by ScotlandTDMA on Dec 3^rd, 2009 at 11:15pm

For the TDMA price look at the CIR and whether this is contended of not.

The SCPC is not conteded as it is dedicated bandwidth but the TDMA may be so make sure you are happy with what is being offered on the TDMA side.

ScotlandTDMA

Title: Re: Pros and cons of 1:1 service on TDMA VS SCPC
Post by dapo on Dec 4^th, 2009 at 11:57am

The TDMA solution will still have one form of sharing at the HUB. But your scpc traffic is most likely to terminate on MPLS switch. The TDMA overhead is larger than SCPC so the effective bit rate is lower in TDMA